| Date |
Distance |
Fuel Used |
Cost of Fuel |
Notes |
MPG(US) |
| 07/25/2010 |
229.4 |
6.004 |
3.339 | Tried to drive good, but I got lost once and wasted a bunch of gas. | 38.20 |
| 07/19/2010 |
645.7 |
14 |
3.339 | 3 small fillups added together, I drained some gas out of my Talon and put it in the Laser so actual gallons might be inaccurate. | 46.12 |
| 06/28/2010 |
552.1 |
16.99 |
3.259 | This may be inaccurate due to 3 fillups and adding approx 1.5 gallons of gas from my other car. Last week I removed the front fender flaps and used hot glue to attach the front wheel fairings- it looks a lot cleaner now. Retuned for 22psi of boost @11.0 AFR. | 32.49 |
| 06/13/2010 |
232.5 |
6.142 |
3.259 | Weather got hot, so does the engine. Heater blockoff seems to help. Still going WOT once every couple days, cruising around 60mph on the freeway, still hypermiling, installed a new muffler which is quieter. | 37.85 |
| 06/08/2010 |
1121.2 |
27.191 |
3.16 | Added up 3 partial fillups with one complete fillup. Trip to Kings Canyon and back. Added more timing to mid load and mid rpm range. Reduced maf scalar to 95% and adjusted timing to match. Power feels nice! Ft tires down to 48psi. Installed heater hose blockoff valve, engine seems to warmup quicker. Just added weatherstripping to seal gaps around headlights, side marker lights with bumper and hood. | 41.23 |
| 05/23/2010 |
265.7 |
6.251 |
3.199 | Trip to Fairfield and back. Drove at 60-65 out, 65-75 back. I realized I haven't tuned 3k rpm range to be efficient while in cruise/lean burn, so mileage was worse at high speeds. | 42.50 |
| 05/20/2010 |
275 |
6.251 |
3.199 | I drove for FE this tank, did some drafting too. | 43.99 |
| 05/12/2010 |
218.4 |
6.174 |
3.239 | did a few wot pulls, typically driving around 60-65mph. adjusted the fuel map to lean out load rows 9-11, added high flow fuel filter and fuel line, swapped L axle which saved a few pounds and fixed low rpm vibration. Installed modified steel top hats on front struts and lowered the car another 1/8". | 35.37 |
| 05/06/2010 |
247.3 |
6.174 |
3.239 | Driving faster sometimes, the car is quieter around 60-65mph. Installed front coilovers, saved 12 pounds, reduced travel by 1/2" so I can't lower it any farther yet. | 40.05 |
| 04/30/2010 |
361.1 |
6.012 |
3.339 | only put in 6 gallons this time. Added a little injector cleaner. | 60.06 |
| 04/19/2010 |
239.2 |
8.638 |
3.299 | Oops, I added too much gas this time. | 27.69 |
| 04/13/2010 |
225.7 |
6.01 |
3.299 | One day of heavy rain and wind. | 37.55 |
| 04/08/2010 |
264 |
6.015 |
3.299 | Driving faster and tuning WOT to run leaner with less timing. Added more timing at low rpm/light throttle. | 43.89 |
| 04/01/2010 |
263.3 |
6.003 |
3.299 | added a degree of timing to other areas in low load and low rpm- it feels good! | 43.86 |
| 03/25/2010 |
393.7 |
9 |
3.299 | I got 3 gallons of free gas, so I re-tuned and drove faster. I added timing in several areas at mid throttle and load level 11, while removing timing at load level 12. It feels noticeably better and smoother. | 43.74 |
| 03/15/2010 |
196.4 |
6.657 |
3.259 | added more gas because it's tiring to buy gas every 4 or 5 days. Added 8 psi to all 4 tires yesterday. | 29.50 |
| 03/09/2010 |
218.2 |
4.999 |
3.259 | | 43.64 |
| 03/01/2010 |
188.5 |
5 |
3.179 | Installed rear coilovers with 175# spring. Lowered ride height by 1.5 cm. Comfort, handling and coastdown speeds remain unchanged. | 37.7 |
| 02/24/2010 |
536.1 |
5.002 |
3.139 | Misleading!
I'm just adding 5 gallons on each 'fillup' for a few tanks to see if it helps mileage- less weight, higher back end? 5 gallons puts the gauge slightly higher than 1/4 tank.
Retuned the eprom with leaner AF ratios at light throttle, added timing during lean cruise. Saved 30 pounds with an aluminum radiator, removed oil cooler, removed PS bracket, lightweight battery, replaced exhaust manifold and turbine housing. | 107.1 |
| 02/09/2010 |
489.4 |
13.525 |
3.519 | Passed smog, E85 burned up quick, some gas wasted on tuning and short trips. | 36.18 |
| 01/27/2010 |
393.5 |
10.321 |
2.889 | I mixed 2.2 gallons of E85 with 8.1 gallons of 87 octane in hopes of reducing emissions. I guess I didn't top off the last tank since mpg is much lower on this fillup. I changed the chip to level the maf comp table while adjusting the maf screw back to stock. Found and adjusted hot start code to reduce excess leanness with hot starts. It rained for 7 days with some wind. Installed Iridium plugs at .035" gap. It seems to run smoother. Did more short trips and slow driving while logging and tuning maf comp settings. | 38.12 |
| 01/16/2010 |
596.3 |
13.962 |
3.159 | Got 1.3 gallons of used gas added to this tank. Ammount is approximate. Drove fast for 3 days. otherwise normal. Swapped in a stock FPR, retuned, had to remove fuel at low throttle/rpm, add fuel at WOT. AF ratio more consistant now. | 42.70 |
| 12/29/2009 |
512.1 |
12.582 |
3.099 | A couple days of fast driving, one long drive in the country roads while hypermiling. | 40.70 |
| 12/17/2009 |
547.2 |
12.782 |
2.999 | Tried hypermiling a little more: using more P+G during warmup and keeping track of the off time. Added some tape to cover gaps in the bumper. | 42.81 |
| 12/05/2009 |
546.4 |
13.14 |
2.939 | Car was hard to start, so I swapped batteries and it got worse, then the starter went bad and left me stranded. Drove 4 days with little EOC for fear of not starting. Trip to Sacramento. Did some fast driving and some drafting. | 41.58 |
| 11/24/2009 |
568.1 |
13.301 |
3.159 | Oil changed with 5/20. Still driving the same. Added another 24 square inches of grill block. | 42.71 |
| 11/10/2009 |
536.4 |
12.936 |
3.099 | Tried to drive better on this tank. Tires at 48psi. I drained a little oil from the trans, weather is cooler-mid 60's. Added 4 ounces of fuel injector cleaner on tonights fillup. | 41.46 |
| 10/27/2009 |
552.5 |
13.126 |
3.199 | The first half of this tank went very quickly. Two days of rain. I added another 4 psi to all 4 tires at half tank and added 1/2 bottle of injector cleaner to the tank. I had forgotten that it tends to help this car. | 42.09 |
| 10/12/2009 |
554.3 |
12.916 |
3.199 | I tried to drive better on this tank, still not drafting very much. With 1/2 a tank left I added 4 psi to all 4 tires, now at 44psi. Swapped 16psi rad cap for a 13psi cap when I saw a small leak at lower rad hose. Added grill block 8" strip. | 42.91 |
| 10/01/2009 |
497 |
12.101 |
3.359 | Installed new sticky tires on the rear at 40psi, underdrive pulley and new belt saves 3.5 pounds. Coastdown seems slightly worse. ECT's run a little cooler without the AC condenser. | 41.07 |
| 09/18/2009 |
540.5 |
12.88 |
3.359 | Did more WOT tuning, FPR solenoid spikes to 21ish psi settles to 19. Hypermiled the last 1/4 tank aggressively to get the mileage up. New knock sensor, all new vac hoses, one hose was off, retuned to reduce EGR at cooler ECT, new clutch pedal pivot, sound damping RTV under hood and hatch. Removed dead AC condenser. | 41.96 |
| 09/04/2009 |
536.4 |
12.766 |
3.259 | Did a few WOT pulls for tuning. Compression check is 155-160. Overheated once on a hot day, re-coded the ecu to throw a CEL when ECT goes over 221*F. Otherwise I'm still hypermiling like usual. | 42.01 |
| 08/21/2009 |
526.9 |
12.248 |
3.159 | I tried to hypermile more this tank. Very few drafting opporitunities on my route. Using WOT occasionally. | 43.01 |
| 08/06/2009 |
541 |
12.366 |
3.199 | Skipped one tank since I got about 8 gallons of free 100 octane from work. Rebuilt rear GR2 shocks with 10W suspension oil and added 50psi. Rides nice and firm. | 43.74 |
| 07/03/2009 |
511.3 |
11.46 |
3.159 | Started commuting via Dumbarton bridge, cuts off about 7 miles. Still going home via 880/237 to avoid bridge toll. Removed rear coilovers due to discomfort. Tried to hypermile hardcore on this tank. | 44.61 |
| 06/17/2009 |
563.4 |
13.209 |
3.189 | Still hypermiling regularly, very little drafting. I've been going WOT more often. Drove in the hills for fun 2x. Installed new/used GR2 front struts, AGX rear shocks with 250# springs, and installed new main and rod bearings. Oil changed with 10/30. | 42.65 |
| 06/02/2009 |
562.9 |
12.789 |
3.049 | Gas prices going up. My driving habits are normalizing for the new commute route. Still hypermiling, 60-65mph freeway speed. | 44.01 |
| 05/19/2009 |
593.1 |
13.253 |
2.719 | Still hypermiling while sometimes driving faster. Removed another panel under the tranny to help with cooling- it's getting warmer. Lowered front tire pressure by 3psi for traction and comfort. | 44.75 |
| 04/29/2009 |
541.1 |
12.37 |
2.399 | Took a trip to Fairfield, drove fast on the way out, hypermiled on the way back. Commuting around 55-65 mph. Doing more wot driving and enjoying it. | 43.74 |
| 04/22/2009 |
578.6 |
12.456 |
2.459 | Trip to Sacramento, new commute route, 4 days of 100* temps! Oil change 10/30W, removed one panel under oil pan/ downpipe to reduce overheating. | 46.45 |
| 04/15/2009 |
546.3 |
11.732 |
2.419 | Did a few more short trips on this tank, and one trip to Fairfield while taking the long way back. | 46.56 |
| 04/01/2009 |
589.5 |
12.507 |
2.359 | Removed 3 strips of duct tape covering grill for better cooling since it's getting warmer. Drafted a little more. | 47.13 |
| 03/21/2009 |
585.2 |
12.835 |
2.259 | Found hot start temp thresholds, lowered IAT threshold from 140*F to 120*F and richened 133*F IAT point to reduce hot start stumble, no stumbling yet. Battery died when I left the fan on all day, no hypermiling on that trip home. Recharged and swapped batteries. TPS wires on the fritz for a day or more? A/F ratio surged rapidly around 15-17:1. | 45.59 |
| 03/10/2009 |
362.1 |
7.515 |
2.259 | Didn't pursue hypermiling aggressively this tank. Took a trip to Sacramento and drafted trucks most of the way @55mph. Summer wind pattern has returned. Airtemps in the 50's-60's | 48.18 |
| 03/06/2009 |
599 |
12.875 |
2.359 | Another good tank! Lots of rain, wind. Drove slower, drafted a little more. Low speed lean burn and hot start working well. | 46.52 |
| 02/22/2009 |
590.8 |
12.739 |
2.399 | Raised lean burn speed threshold to 29mph, richened 50 and 75Hz points, using 5th gear as low as 30mph- all 3 have almost cured hot start hesitation. Warmer weather, 3 days of rain+wind, driving a little slower, trying to coast a little longer. | 46.37 |
| 02/12/2009 |
543.7 |
12.416 |
2.479 | Adjusted ecu to reduce excess leanness during hot starts, it still sputters. | 43.79 |
| 01/31/2009 |
586.5 |
13.083 |
2.299 | Lowered lean burn speed to 27mph. Occasionally get light bucking at light throttle/hot engine. Otherwise it works nicely. Warmer weather, mid 60's. | 44.82 |
| 01/18/2009 |
575.3 |
12.696 |
2.259 | warmer weather, 60's. This tank had fuel system cleaner in it. Repaired hatch seal works well, no more exhaust smell, and vents pull in fresh air without using the fan. IAT and ECT up. | 45.31 |
| 01/08/2009 |
536 |
12.36 |
2.199 | Tried to drive better this week, some drafting, still cold. Just before filling up I added 2 panels under engine and trans, bent exhaust up 1/2". | 43.36 |
| 12/31/2008 |
575.3 |
12.696 |
2.259 | Warmer weather,60's | 45.31 |
| 12/24/2008 |
534.2 |
12.725 |
2.059 | Cold and rainy this week. Testing some code to eliminate fuel trim effect on lean burn A/F ratio. Hopefully this is the worst entry for the winter. Cut back on hypermiling a little to gain heat and used the defroster several times. Rebuilt starter. | 41.98 |
| 12/10/2008 |
588 |
13.569 |
2.029 | Car is still very nice to drive. Drafted a little more this week, sometimes driving 65-70mph, mostly still at 58. | 43.33 |
| 12/01/2008 |
558.8 |
13.253 |
2.239 | Oil changed with 0-20w, swapped front diff, lubed TOB, removed broken CC, AC, PS. Car drives so much better now! Tires down to 40/45psi for comfort and traction in the wet. | 42.16 |
| 11/19/2008 |
316.3 |
7.494 |
2.059 | cheap gas! Drove faster to and from Sacramento. | 42.20 |
| 11/14/2008 |
506.7 |
11.175 |
2.599 | cheap gas! Hypermile habits still going strong. | 45.34 |
| 11/05/2008 |
615.1 |
14.045 |
3.099 | Swapped fuel pumps, Walbro 255hp is out, Denso 150lph in. Pump cut out a few times. This tank was going well, maybe a 47mpg tank, then at 1/4 remaining the pump left me stranded. For the last 1/4 I didn't do ANY eoc, and drove around 60-65mph. 3 days of rain. | 43.79 |
| 10/11/2008 |
578.2 |
12.583 |
3.859 | Cost of gas is finally below $4! Typical driving, around 55-58mph, very little drafting, cooler weather, mixed winds, regular traffic slowdowns. I'm going to try leaner settings next tank and see if it makes any difference. | 45.95 |
| 10/02/2008 |
635.2 |
13.699 |
4.099 | Added some injector cleaner, tried to drive for better FE, sometimes drove around 58mph on the freeway. Slightly cooler weather. | 46.36 |
| 09/19/2008 |
586.6 |
12.636 |
4.139 | Odd tank, it started out really bad, then got better. I drove a little faster, burned our the front diff with a smoking 1-2 burnout, now it's probably welded. Doing Some Maintenance: changed plugs: BPR7ES @ .037, added more grill block with 3 strips of duct tape, checked tire pressure and added 5psi to bring it back up to 52psi, checked alignment and reduced toe-out by 2mm. Cooler weather. | 46.42 |
| 09/06/2008 |
588 |
12.338 |
4.179 | Drove my Talon for a week, Laser sat unused. Still driving around 58mph. Hot weather. | 47.65 |
| 08/21/2008 |
600.1 |
13.152 |
4.359 | Drove a little faster this tank, didn't try to hypermile as hard. Found out that lean burn looks at fuel trims. Raised mid/hi trim switchpoint beyond lean burn threshold. Wideband shows good control of A/F ratio! | 45.62 |
| 08/09/2008 |
663.3 |
14.072 |
4.499 | Weather is still cool. Took a trip to Sacramento, drove slow out, drove faster back. | 47.13 |
| 08/02/2008 |
552 |
12.006 |
4.579 | Did a little more tuning at WOT, lean burn, and stoich cruise. Driving a little faster, around 55-58. Weather still cool, 65* mornings, 75* evenings. | 45.97 |
| 07/21/2008 |
656.5 |
13.51 |
4.679 | TunerPro RT is working in the ecu. Added one degree of timing in a few areas at low load/2k rpm, removed timing at hi load/all rpm, leaned out lean burn at light throttle, quicker hi load knock decay rate, leaned out the safc hi throttle settings by 2% and added 2 lbs more boost. Added a few WOT pulls on top of my typical driving style, cooler weather- a few days of misty fog. New T-stat warms up at the same speed but runs a little cooler. Changed the trans fluid with Redline MTL, light fill. Loosened parking brake. | 48.59 |
| 07/11/2008 |
638.7 |
13.425 |
4.759 | I relaxed a bit on this tank. Tried to tune in leaner closed loop settings with no effect. New OEM thermostat, upper rad hose, 16psi cap back on. | 47.57 |
| 07/01/2008 |
702.9 |
13.233 |
4.799 | Best tank! Best FE by far! I took 2 trips strictly for FE style driving: the route was hilly and remote, so I used P&G around 35mph. The rest of the time I was commuting via 280 freeway after work each day. Covered headlight gaps/slots with clear tape, taped up CAI on front bumper which altered the airflow signal slightly, so I retuned the eprom by leaning out maf comp table, leaned O2 switchpoint another #$02, simplified lean burn table, changed fuel increase/decrease values, leaned accell enrich, leaned decel enrich.
Re-gapped plugs to .037". | 53.11 |
| 06/23/2008 |
618.9 |
12.66 |
4.739 | I'm not sure if I topped off the tank in the same way as usual, so this tank may be very slightly optimistic. Heat wave: 2 hot days and 2 very hot days. Still have the fan sensor unplugged. ECT peaked at 226 once while drafting in a tailwind with 98* airtemp. Removed 16psi radiator cap and re-installed 13psi cap. Upper rad hose is bulging. | 48.88 |
| 06/13/2008 |
645.9 |
13.171 |
4.779 | BEST TANK! BEST FE! MOST EXPENSIVE GAS YET! ack!
Learning to eoc earlier, very little drafting due to slower speeds on the freeway, trucks are going too fast. Leaned out the SAFC 2% at 2k rpm and 1% at 2500rpm. Two days of warmer weather. Drove an extra 20 miles to get to 645 today. Engine doesn't seem to burn oil anymore. Unplugged theradiator temp sensor so the fans don't come on, have been closely watching ect on the logger. Temps only seem to rise when slowing/stopping, eoc helps lower temps. ECT remains the same during steady freeway cruising as with the sensor plugged in. More grill block? | 49.03 |
| 06/01/2008 |
584.2 |
12.412 |
4.439 | New best FE! Just barely beat the old record by .04mpg. And I even topped off the tank. Still trying to drive around 50-58 max since these prices are still quickly rising. $55 to fill the tank this time. Checked front end alignment when the car was hot, found it to be toed out by 1/4". Adjusted inward by 1/8". Will try to check before/after, hot vs. cold to see if it changes much. | 47.06 |
| 05/22/2008 |
568.4 |
12.179 |
4.259 | Doing Some Maintenance: oil change with 5/20w, new timing belt, 233k miles on the odo. Took out some timing at 750 and 1k rpm/ hi load to reduce vibration. Saw some metal in the bottom of the oil pan. Added #02H to coil dwell time(128Us). Trying to stay around 50-55mph. | 46.67 |
| 05/11/2008 |
598.2 |
12.73 |
4.099 | nothing new. | 46.99 |
| 04/30/2008 |
611.2 |
13.47 |
4.199 | Wierd tank- didn't start off so good, then it kept getting better. Trying to stay around 55mph on the freeway. | 45.37 |
| 04/21/2008 |
545.2 |
13.262 |
4.039 | Raced my car at the track. Best time was 14.1@106 with a 2.5 60' time. Tires were down to 40psi. Had a full tank of 91 octane, filled up just before leaving for the track. Retuned at the track for 20psi of boost.
The gas station where I filled up stops the pumps at $49 even, so I swiped my card again and topped off until gas spilled out, so this tank looks a little worse since I squeezed in an extra .2 to .4 gallon. Unusually cool weather. | 41.10 |
| 04/16/2008 |
571.4 |
12.192 |
4.019 | Drove slower this tank since gas went over $4. Typically at 52mph. Warmer weather, summer wind pattern is starting. | 46.86 |
| 04/05/2008 |
540.6 |
12.168 |
3.919 | First tank with AEM wideband, cool gage. Adjusted ecu to lean out startup in cold temps, richened at max ect temp, richened the high airflow portion of 'reduces coldstartenr at hi grev', tweaked the timing map, adjusted lean burn fuel map to be richer at idle, lowered idle threshold, greater difference between low flow A/F ratio and hiflo A/F ratio, lowered speed on/off to 45mph (nice), lowered O2 switchpoint to .42v but didn't seem to make a difference. | 44.42 |
| 03/27/2008 |
538.8 |
12.356 |
3.919 | Had a chance to draft a little more. Installed a wideband O2 sensor, used it one day so far. I found I typically cruise around 17.5 A/F ratio. There's room for improvement in several areas! | 43.60 |
| 03/14/2008 |
524.4 |
12.443 |
3.759 | Commuted two days on 280, took a long drive down the coast and through the mountains. No changes. | 42.14 |
| 03/03/2008 |
600 |
13.14 |
3.729 | Finished re-installing the mods after passing smog check. It's nice to get my FE back up! I also duct taped a few holes in the radiator support area, taped over the intercooler vent slots in the R wheel well, mounted the bumper and cover about 1/4" lower, moved the wheel fairings back 1/2" and added vertical flaps at the back edge of the wheelfairing, and taped 3 strips of duct tape over the oil cooler. Replaced heater and TB coolant hoses. Using more WaterWetter and a 16psi radiator cap.
A little more drafting this tank, took 280 once. Installed the mods with 3/4 tank left. | 45.66 |
| 02/22/2008 |
547.8 |
13.075 |
3.599 | typical week of commuting. | 41.89 |
| 02/11/2008 |
555.5 |
13.392 |
3.299 | Car is still partially de-modded for smog check. Drove about 50 miles while tuning with no hypermiler techniques. Warmer weather, no rain. | 41.47 |
| 02/03/2008 |
524.4 |
13.094 |
3.419 | more stormy weather + wind, removed some mods in preparation for smog check, drove faster two days. New BPR6ES plugs gapped to .032" seems to reduce light throttle stumbling. | 40.04 |
| 01/24/2008 |
557.3 |
12.963 |
3.399 | Added one degree of timing at 2k rpm and load level 3. The motor seems to like it. Still have a lugging sensation when accellerating from a coast. Installed AGX's, drove about 15 miles in the twisties testing them. More traffic on the roads, slowing the commute. A few days of colder and rainy weather. | 42.99 |
| 01/12/2008 |
563.4 |
12.351 |
3.639 | Installed a used Eagle LS tire and alloy wheel on RR, weighs 4 pounds less than the old steel wheel/tire. It has a T speed rating, pumped up to 50psi. Front tires at 50psi now. Warmer weather, 3 days of rain, commuted via 280 all week. Smoothed a few areas on the car; 3 plugs where antenna, rear wiper, and rear washer nozzle used to be, adjusted fuel door, caulking at windsheild top. | 45.61 |
| 01/04/2008 |
409.2 |
9.586 |
3.399 | Cheap gas! Stormy + windy weather this week. | 42.68 |
| 12/29/2007 |
551.5 |
12.452 |
3.479 | With 3/4 tank left I removed the PS belt, removed radio antenna, increased front tire pressure to 50psi, changed the chip to reduce cold idle and lean out cold enrichment in several areas around 48*F, and drained a couple ounces of tranny fluid. Commuted via 280 3x this week, drafted a little more. Typical winter weather: a little light rain, some wind, temps around 40 to 55. | 44.29 |
| 12/20/2007 |
539.7 |
12.408 |
3.379 | I drove carefully all week, one trip out and back along the 280 freeway, drafted more. Upped tire pressure a couple psi, went up to 40psi in the old tire that's on the steel wheel. I forgot to reset the tripmeter when I filled up today, so add ten miles to next weeks tank. Added a bottle of injector cleaner along with the fillup. | 43.49 |
| 12/13/2007 |
515.1 |
12.789 |
3.479 | RR tire went flat again, commuted home on 15psi. Swapped on a steel wheel with old tire at 35psi. Two days of rain, very cold. | 40.27 |
| 12/02/2007 |
595.5 |
13.596 |
3.719 | Normal week, did some drafting, using eoc in town whenever possible, commuted one day via 280, two days of colder weather, one day of warm weather. | 43.79 |
| 11/23/2007 |
544.7 |
12.661 |
3.739 | Another typical week, still using eoc frequently during warmup. Yesterday I changed the oil with 5w-20, installed the drivers side splashguard in the front wheel well. Engine temps stayed around 203-206 on the drive home today. Found a few new pieces of code that control isc step at startup, startup isc reduction timer, and timer threshold referenced by ect. Reduced them all to keep engine speeds lower, especially when cold. Made a few other changes to timing and fuel to reduce knock around 2-4krpm and mid load, seems to work. | 43.02 |
| 11/10/2007 |
575.6 |
13.115 |
3.659 | Gas prices up due to oil spill in Bay. One day of rain, slightly warmer weather for the season. Regular driving, been doing more eoc during warmup. swapped in a larger coolant overflow bottle in hopes of preventing coolant loss. | 43.88 |
| 10/31/2007 |
533.7 |
12.173 |
3.519 | Fixed the flat RR tire and installed it, raised pressure by about 5 psi to 45 all around. Replaced RF strut, no more clunking, adjusted alignment back to zero toe. Idle position switch wasn't working too good, did some troubleshooting with a multimeter and found it wasn't grounded very well. Added another ground wire directly to TB. Seems to work correctly today. | 43.84 |
| 10/24/2007 |
612.6 |
13.124 |
3.659 | Another typical week, leaner settings might be working better. Weather has been slightly warmer. | 46.67 |
| 10/21/2007 |
595.3 |
15.22 |
3.429 | Incomplete fillup - I was in a hurry and stopped for gas at the slowest pump in the world, what luck! Only took in 2.1 gallons, didn't reset trip meter. Lotta fast driving prepping for LeMons, pre-race jitters. Closed throttle position switch was on the fritz, fixed it by readjusting it. About half the tank was hypermiled. | 39.11 |
| 10/15/2007 |
474.1 |
11.753 |
3.289 | Lower mpg this time due to a screw in the R. rear tire lowered pressure to 15psi, drove on it for at least one day like that. Replaced it with a heavy steel wheel with an old (made in 1999) tire on it, rated at 35psi max. Two new tires in the front, max pressure is 44, using 42. Circumference is only one inch more than the old, extremely worn tires. Two trips to Vacaville, drove faster, went through plenty of rush hour traffic. | 40.33 |
| 10/12/2007 |
524.7 |
12.754 |
3.359 | Fast trip to Vacaville and back. Went through stopped traffic in downtown SF. One day of rain. Got lost in Hayward and drove fast. Otherwise, I drove normally. | 41.14 |
| 10/06/2007 |
542.3 |
12.484 |
3.319 | Trip to Vacaville+back. Cooler weather this week. Lowered idle speed at low ECT, lowered cutoff threshold at low ECT, added one degree of timing at low load/48*ECT. Raised tire pressure by 5psi on all 4. Some misfiring at light throttle =time to change plugs? | 43.43 |
| 09/30/2007 |
621.2 |
13.677 |
3.279 | Tried to draft more often this week. New underbody panels still holding up. Coasting down regular hills is definately a couple mph faster. Lost disclipline a few times and used too much gas. | 45.41 |
| 09/21/2007 |
595.6 |
12.929 |
3.279 | Installed underbody panel between rear axle and rear bumper. Coasting down hill seems to be about 2mph faster. Hz count at steady cruise is lower, may be due to cooler weather. One day of rain, did a little more drafting than usual, seems easier to maintain speed. 3 commuting days with new underbody panels. | 46.06 |
| 09/10/2007 |
505.9 |
10.871 |
2.949 | Drafted more often this week. LED running lights were installed two days ago. I'm starting to commute home in the dark now. Trip out to Vacaville. Long trips seem unusually good for FE. Maybe I'm wasting too much gas during warmup? | 46.53 |
| 09/06/2007 |
517.6 |
11.577 |
3.159 | wow 44mpg! I didn't expect this tank to be so good. I drove faster coming home from Vacaville last week. Followed the same typical driving habits while commuting. Tweaked the ecu; leaned out lean burn at all airflow levels, lowered the O2 switchpoint by another .02v, lowered the temp threshold between closed loop/warmup mode and closed loop/fully warm. Added one degree of timing at 2500rpm/ load level 2. Fixed a leaky coolant overflow bottle. | 44.70 |
| 08/28/2007 |
545.4 |
12.107 |
2.899 | Another good tank. Trip to Vacaville again, very hot weather this time. Commuted on 101 all week. No changes to driving, maybe I'm getting better at it? Still tuft testing. | 45.04 |
| 08/21/2007 |
625 |
13.291 |
2.859 | New best tank and best FE! Drove carefully all week, commuted via 280 each day, added caulking to a few places on the underbody panels to reduce vibration and noise, added fairing to leading edge of rear suspension. Drove to Vacaville and a little beyond. Weather was warmer for the past 3-4 days. Started tuft testing. Only 13.2 gallons, I could've squeezed another 20 miles out of this tank easily. If I pushed it to 14.5 gallons used that would have been 681 miles! | 47.02 |
| 08/14/2007 |
440 |
10.269 |
2.959 | One day of driving in a traffic jam in downtown SF on friday night. sucked. One trip out to Vacaville where I filled up on cheap gas. Two days of commuting via the 280 freeway to get FE back up. | 42.84 |
| 08/08/2007 |
555.4 |
12.801 |
3.359 | Trip back from Vacaville-drove faster, maybe 65 to 70. ECU changed to lean out light throttle lean burn settings, added one degree of timing at 2k rpm/2nd load row, car seems to hold speed nicely at 110 to 120Hz of airflow. Reduced O2 switchpoint another .02V to .44. Commuted one day on the 280 freeway. New TPS went in yesterday, readings are solid. | 43.38 |
| 07/30/2007 |
383.7 |
8.555 |
3.079 | Cheap gas! I went to Vacaville, gas is cheap out there. Did more drafting this week. VSS is working again, TPS on the fritz for the first few miles of each trip, made some small changes to the chip. | 44.85 |
| 07/25/2007 |
519.4 |
12.051 |
3.439 | Reset toe from 3/8" in to zero. Car seems to coast better now. Fixed tps by moving plug, works much better. Speed sensor went out, no lean burn all week. Typical maf Hz with lean burn was 135-140, without lean burn 110-120. Changed chip to richen lean burn settings, leaned O2 switchpoint, reduced timing at low rpm/high load to reduce lugging. Seems to work. Using Ostrich, 512 chips don't load right. | 43.10 |
| 07/14/2007 |
547.2 |
12.419 |
3.519 | TPS sensor got erratic one day. Commuted one day on 280, used eoc more, tried to drive more carefully. | 44.06 |
| 07/06/2007 |
525.4 |
12.575 |
3.459 | Did some spirited driving, very little drafting, otherwise a typical commute week. | 41.78 |
| 06/24/2007 |
577.6 |
13.001 |
3.559 | Another typical week, some drafting, speeds around 55-60, more traffic jams this week, summer wind pattern holding strong. | 44.42 |
| 06/15/2007 |
585 |
13.367 |
3.559 | Standard commute route. Drove a little slower, 58mph vs. 62. Several days were very hot, typical summer wind pattern. oil changed this week. | 43.76 |
| 06/06/2007 |
539.7 |
12.558 |
3.639 | I'm not sure how I still keep getting good mileage. Maybe it's because the Laser is overdue for an oilchange and new front tires? No changes this week. Same old commute. | 42.97 |
| 05/27/2007 |
557.3 |
13.088 |
3.659 | Another good tank. Typical driving techniques with some EOC, some neutral coasting, a little drafting, speeds mostly around 60mph. No changes to ecu code, working fine. | 42.58 |
| 05/18/2007 |
604.2 |
13.705 |
3.699 | Record tank! New multi stage lean burn in use. Took 280 home 3x this week. Very little drafting. Windy weather, mostly favorable. | 44.08 |
| 05/06/2007 |
537.3 |
12.92 |
3.699 | Using multi-stage lean burn now that it can truely be lean. Commuted via 101 every day. Unsettled weather, some rain. | 41.58 |
| 04/26/2007 |
558.7 |
12.857 |
3.639 | Trip to Santa Rosa, some drafting, two days with the new lean burn settings (lowered thresholds for 'use max of x or y') car stalls again when coasting. I did not expect to get such good mileage this time. | 43.45 |
| 04/18/2007 |
577.6 |
14.743 |
3.559 | Raced at Infineon, best was 14.016@108.96mph, approx 20mph headwind. Added 2.5 gallons of 100 octane unleaded. Swapped front tires from the Talon, still didn't help, best 60' time was 2.40 Freeway driving was done at a slightly faster pace up to 70mph. | 39.17 |
| 04/12/2007 |
576.1 |
13.508 |
3.579 | Drove more normal this week. Trip to Santa Rosa, trip to Infineon, didn't race. New flex section. Commuted on 101 every day. Still P+G'ing and eoc at the regular places. | 42.64 |
| 04/06/2007 |
536.2 |
11.8 |
3.459 | New route is working nicely! Last weeks fillup was not a fluke. Now I'm taking the 280 freeway home so I can P+G the whole way. Uphill @55mph, eoc downhill, repeat. Found and corrected a few errors in the eprom, no more stalling, leaner during warmup. | 45.44 |
| 03/25/2007 |
526.4 |
11.821 |
3.399 | This may not be a new best tank; I filled up at a new place which may have been tilted. Gas coughed out when I topped off, indicating some air inside. Watch next tank to see if the average drops back down. This week I drove the same as last week, tried to P+G as much as possible. Maybe I'm getting better at it. | 44.53 |
| 03/20/2007 |
494.4 |
11.617 |
3.439 | Another best mpg! Using P+G almost all the time, pursuing draft opporitunities. Warm weather- 60's+70's. Long trip to Santa Rosa. | 42.55 |
| 03/14/2007 |
520.2 |
12.426 |
3.419 | Getting more aggressive with p+g. temps up around 60's and 70's. new best mpg! | 41.86 |
| 03/03/2007 |
509.7 |
12.289 |
3.159 | did more drafting, warmer weather, cruising around 55-65mph. Did more P+G with 5 to 10 mph drop. not using 5th until 35mph or more, depending on load. | 41.47 |
| 02/21/2007 |
508.6 |
13.129 |
3.019 | status quo. Part of this tank was used driving back from Sacramento. Used more pulse-n-glide while commuting. Need more practice. Front tires are wearing thin. | 38.73 |
| 02/13/2007 |
679.2 |
17.461 |
2.853 | This is not a record tank! I just added 5 gallons to the tank without resetting the tripmeter. Then when I filled the tank I took the total mileage.
Trip to Santa Rosa and Sacramento. Started pulse+gliding on hills. MPG logger in use. Leaned out lean burn an extra 2%. Car did not run well at the track-best of 14.1 @ 106mph, wierd vibration in 4th gear. Forgot to top off oil. | 38.89 |
| 02/07/2007 |
474.7 |
13.286 |
2.899 | Anti-experiment. I drove more normal this week. I tried to lower the lean burn threshold to 45mph, but messed it up, so I spent one day without lean burn. Speeds mostly around 55 to 70 mph. Did not use SAFC to lean out during cruise. Engine power and response felt nice this way. First day with FELogger! | 35.72 |
| 01/28/2007 |
600.2 |
14.517 |
2.679 | 600 miles! Fuel pump was squeeking/seizing, ack! Very little drafting, speeds mostly at 55 to 60 mph. | 41.34 |
| 01/17/2007 |
514.6 |
13.471 |
2.859 | Very cold weather. Completed underbody panels at front corners and around gas tank. ACT flywheel went in yesterday, saved 6 pounds, has no vanes. There seems to be a dead spot in power vs. Fe around 63 mph. | 38.20 |
| 01/04/2007 |
554.6 |
13.903 |
2.879 | trip to Santa Rosa, added front underbody panels and one right-rear panel at mile 400. still shifting to 5th earlier, doing more eoc. | 39.89 |
| 12/29/2006 |
520.2 |
13.421 |
2.839 | lowered the temp between open/closed loop, leaned out startup enrichment, added front wheel fairings, shifting into 5th gear around 35mph. Holiday traffic, one day of rain, generally uncooperative weather. | 38.76 |
| 12/17/2006 |
473.1 |
12.566 |
2.759 | Colder weather, very little drafting, ~20 mile backroads jaunt, and some WOT passing on the freeway. Still using good driving habits. | 37.64 |
| 12/09/2006 |
451.7 |
11.642 |
2.659 | two days of rain, very little drafting. modded ecu with .46v o2 switchover. popup headlight mod working well. typically cruising the freeways around 55-65mph. | 38.79 |
| 12/01/2006 |
506.4 |
13.058 |
2.659 | Did the chicklet mod to the popup headlights. More eprom tuning: closed loop O2 switchpoint lowered to .46, added some fuel back to the hot start choke, decreased dashpot to .3 Weather was clear and cold. | 38.78 |
| 11/23/2006 |
473.2 |
12.537 |
2.2659 | More ecu changes; upped egr and dashpot. Lowered the following: idle, idle cutoff, cold start enrichment, O2 switchpoint, cold start timer, enrichment at hot start, and? Freeway driving averaged around 55 to 65 mph. | 37.74 |
| 11/15/2006 |
512.5 |
13.324 |
2.639 | same old driving style; mostly slow, some 65mph, two long traffic jams. | 38.46 |
| 11/10/2006 |
472.4 |
12.489 |
2.579 | some drafting, did more regular driving around 65mph. EOC is becoming a regular habit. | 37.82 |
| 11/01/2006 |
401.7 |
11.619 |
2.499 | Raced at the track. Got in 5 runs, best was 13.7 @109.2 mph, no changes for track use-tires at 45psi, 1/4 tank of 91 octane. Also did some WOT tuning runs to prepare. New T-stat runs at 203-206F. | 34.57 |
| 10/22/2006 |
571.4 |
13.727 |
2.619 | 41.62MPG! Drove slow and consistent, some drafting, some EOC, tires at 48F, 44R, sticking thermostat(slow warmup and 203 F cruise temps), modified 4 stage lean burn code. | 41.62 |
| 10/12/2006 |
469 |
12.877 |
2.699 | was late a few days and drove 70~75.
Added the new staged lean burn code to my chip and tested it. | 36.42 |
| 10/03/2006 |
435 |
11.82 |
2.75 | tires pumped up to 48 ft, 44 rear, one day of rain. drove carefully | 36.80 |
| 06/28/2006 |
503.9 |
12.888 |
3.219 | 39.09 miles per gallon from this tank of gas. I traveled 503.9 miles and it took 12.888 gallons to re-fill it. | 39.09 |
