Hf advantage:8v/trans 50/50 [ Archive] - GasSavers.org - Helping You Save at the Pump
View Full Version : Hf advantage:8v/trans 50/50
budomove
06-29-2006, 10:43 AM
I just figured something out. The crx in all its incarnations gets approx 1mpg better than its respective civic equiv. (i.e: dx 5spd, dx auto), so ignoring that, the hf in '91 got a combined epa of 50-51mpg. My civic got an epa 35mpg combined with 4spd. If i drive my car with the same restraint it took to get 35mpg with the 4spd, I now get about 42mpg according to my first 230 miles with the hf tranny. If I wanted to close the gap to 50mpg to reach hf territory, the engine would account for the other half. So hf tranny/8v really are an even split in fe advantage. This all assumes that the real secret does NOT lie in lightweight rear drums. :D
SVOboy
06-29-2006, 10:44 AM
Well sir, you are on your way, have you talked to the seller? Get some pictures!
Matt Timion
06-29-2006, 10:51 AM
This all assumes that the real secret does NOT lie in lightweight rear drums. :D
:) Lightweight rear drums weren't in the 88-91 cars, only the 86-87 CRX HF and the Honda Insight.
Oh yeah, do you want a pair?
budomove
06-29-2006, 10:55 AM
:) Lightweight rear drums weren't in the 88-91 cars, only the 86-87 CRX HF and the Honda Insight.
Oh yeah, do you want a pair?
Do you know the weight diff b/w those and my 91 civic drums?
SVOboy
06-29-2006, 11:23 AM
They're 3 pounds less.
Matt Timion
06-29-2006, 11:36 AM
They're 3 pounds less.
3 pounds of unsprung weight equals like 400 lbs of sprung weight.
Okay, I'm exaggerating.
SVOboy
06-29-2006, 11:37 AM
And 10 pounds of sex appeal!
krousdb
06-29-2006, 11:50 AM
3 pounds of unsprung weight equals like 400 lbs of sprung weight.
Okay, I'm exaggerating.
Matt is quite the salesman....
Matt Timion
06-29-2006, 12:19 PM
Matt is quite the salesman....
Wait until I start selling you about these pills you put in your gas tank that improve your gas mileage by 50%!
And they're only $2/ea!
MakDiesel
06-29-2006, 01:44 PM
ha there's a guy on redpepperracing, his name is Scott, he lives and dies with the praise of '86-87 CRX HF aluminum drums, trying to convert the Integra rear disk swappers of their blasphemous ways. Mak
budomove
06-29-2006, 01:52 PM
Hey Matt, do you have the insight or hf ones?
thisisntjared
06-29-2006, 02:56 PM
They're 3 pounds less.how much of that is rotational mass? rotational mass is what multiplies in value.
reduced unsprung weight is just better for handling but an equal reduction in sprung weight is just as good for fuel efficiency.
rear discs isnt blasphemy when your rears dont lock up as easy without abs.
MakDiesel
06-30-2006, 09:10 AM
I meant blasphemous in the "why upgrade and add weight when you can decrease weight" mentality of RPR. Personally, after several drum/disk brake jobs, I'd swap disks too to avoid the hassle of changing shoes vs. pads. It's sometimes a breeze, other times ridiculously frustrating. Blasted leaky wheel cylinders...Mak