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06-29-2006, 11:43 AM
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#1
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Member
Join Date: Apr 2006
Location: Queens, New York
Posts: 379
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Hf advantage:8v/trans 50/50
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.  |
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06-29-2006, 11:44 AM
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#2
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*shrug*
Join Date: Sep 2005
Posts: 7,406
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Well sir, you are on your way, have you talked to the seller? Get some pictures!
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06-29-2006, 11:51 AM
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#3
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Driving on E
Join Date: Sep 2005
Location: Salt Lake City, UT
Posts: 3,993
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Quote:
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Originally Posted by budomove
This all assumes that the real secret does NOT lie in lightweight rear drums. |
 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? |
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06-29-2006, 11:55 AM
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#4
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Member
Join Date: Apr 2006
Location: Queens, New York
Posts: 379
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Quote:
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Originally Posted by Matt Timion
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? |
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06-29-2006, 12:23 PM
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#5
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*shrug*
Join Date: Sep 2005
Posts: 7,406
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They're 3 pounds less.
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06-29-2006, 12:36 PM
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#6
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Driving on E
Join Date: Sep 2005
Location: Salt Lake City, UT
Posts: 3,993
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Quote:
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Originally Posted by SVOboy
They're 3 pounds less.
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3 pounds of unsprung weight equals like 400 lbs of sprung weight.
Okay, I'm exaggerating. |
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06-29-2006, 12:37 PM
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#7
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*shrug*
Join Date: Sep 2005
Posts: 7,406
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And 10 pounds of sex appeal!
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06-29-2006, 12:50 PM
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#8
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Flying Under the Radar
Join Date: Feb 2006
Location: Raliegh, NC
Posts: 1,694
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Quote:
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Originally Posted by Matt Timion
3 pounds of unsprung weight equals like 400 lbs of sprung weight.
Okay, I'm exaggerating.
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Matt is quite the salesman.... |
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06-29-2006, 01:19 PM
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#9
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Driving on E
Join Date: Sep 2005
Location: Salt Lake City, UT
Posts: 3,993
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Quote:
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Originally Posted by krousdb
Matt is quite the salesman....
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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! |
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06-29-2006, 02:44 PM
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#10
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I heart FUH2.com
Join Date: May 2006
Location: Winston Salem, NC 27104
Posts: 163
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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
__________________
'85 CRX Si Original EW3 @ ~238k...suck it Detroit
'89 CRX HF-Z1 Project "FrakenRex" ~ 97% complete, 3% annoying hangups... SHE LIVES!
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06-29-2006, 02:52 PM
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#11
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Member
Join Date: Apr 2006
Location: Queens, New York
Posts: 379
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Hey Matt, do you have the insight or hf ones?
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06-29-2006, 03:56 PM
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#12
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|V3|2D
Join Date: Mar 2006
Location: southern nj
Posts: 1,516
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Quote:
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Originally Posted by SVOboy
They're 3 pounds less.
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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.
__________________
don't waste your time or time will waste you
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06-30-2006, 10:10 AM
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#13
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I heart FUH2.com
Join Date: May 2006
Location: Winston Salem, NC 27104
Posts: 163
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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
__________________
'85 CRX Si Original EW3 @ ~238k...suck it Detroit
'89 CRX HF-Z1 Project "FrakenRex" ~ 97% complete, 3% annoying hangups... SHE LIVES!
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