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EF Civic Si/Dx

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Old Oct 28, 2006 | 05:55 AM
  #11  
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A car that has won Nationals (pedigree) and all the research and tuning have been done already. That's already worth like $10k.
He has replaced just about every piece on the car with newer/better parts. I think he even took off the undercoating, repainted it and re-undercoated it. Engine has been rebuilt, LSD, axles, bushings, suspension arms, etc.... That's about $5000. Then he has done all the test and tuning for your which is probably $3000.
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Old Oct 28, 2006 | 10:36 AM
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That's ony $18K

I thought only stock LSD were allowed in STS? But yeah I saw the pics of the car. It's pretty sexy.
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Old Oct 28, 2006 | 01:24 PM
  #13  
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Originally Posted by cbags05
That's ony $18K

I thought only stock LSD were allowed in STS? But yeah I saw the pics of the car. It's pretty sexy.
It's a stock VLSD that he rebuilt.
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Old Oct 29, 2006 | 09:09 PM
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Originally Posted by jaje
The CRX DX had a dpfi 90hp engine...it also had longer gears but still a 5 speed manual.

The CRX Si came with mpfi (about 15 more hp) but the powerband was much flatter compared to the DX so it make much more power for a longer time. The Si also had much shorter gearing making it accelerate very well (in addition to its smaller diameter wheels).

Also, 90-91 CRX Si's also came with rear discs (where all DX's had drums)

You can make a DX very quick...mine is built for H5 / ITC specs...it has a chipped ecu, competition head, retains DPFI and it has the Si gearing in the dx transmission (had to keep stock transmission case)...I also have rear drums but they do a good job as the car is not too heavy (about 2050lbs with me in it)
Si's have bigger diameter wheels.
If you are looking at an Si, you save 180-200 pounds getting an 88-89 over a 90-91. The discs and 3 hp don't really make up for it. The Si also has a rear sway bar.
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Old Oct 30, 2006 | 03:12 AM
  #15  
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Originally Posted by ED9man
Si's have bigger diameter wheels.
If you are looking at an Si, you save 180-200 pounds getting an 88-89 over a 90-91. The discs and 3 hp don't really make up for it. The Si also has a rear sway bar.
I beg to differ You will find out next year when my EG Si is done
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Old Oct 30, 2006 | 08:06 AM
  #16  
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Originally Posted by ED9man
Si's have bigger diameter wheels.
If you are looking at an Si, you save 180-200 pounds getting an 88-89 over a 90-91. The discs and 3 hp don't really make up for it. The Si also has a rear sway bar.
Did they come with 15" wheels (can't remember) - maybe a big reason why the Si transmission was geared for such acceleration.

The 1988 Si was the lightest of the Si models as it didn't have the side impact beams (a good 20-30lbs extra weight).
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Old Oct 30, 2006 | 12:38 PM
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1989-1991 Civic SI had 14s
as well as the 1992-1995s

The 1988 Si was the lightest of the Si models as it didn't have the side impact beams (a good 20-30lbs extra weight).
Yeah but you still have to run more than a 1/2 tank of gas compared to the 1991 Civic which you could run near damned empty.

Full tank of gas = 70lbs. So both the 1989 and the 91 could be almost the same weight.
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Old Oct 31, 2006 | 12:14 AM
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Originally Posted by CivicSiRacer
Yeah but you still have to run more than a 1/2 tank of gas compared to the 1991 Civic which you could run near damned empty.

Full tank of gas = 70lbs. So both the 1989 and the 91 could be almost the same weight.
It is ridiculous that you know this.
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Old Oct 31, 2006 | 04:42 AM
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Originally Posted by cbags05
It is ridiculous that you know this.
Yeah I used to work QA/QC so I'm a bit anal. You'll find out that most SERIOUS autocrossers are worse than me
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Old Nov 1, 2006 | 07:48 PM
  #20  
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Cripes I suppose if I do this for the next 10 years or so I'll know little crap like that too.
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