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EF Civic Si/Dx

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Old Oct 24, 2006 | 08:38 PM
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Default EF Civic Si/Dx

Is there a big difference between the EF Si and Dx when it comes to autocross? I've been looking for an Si casually for a while now and haven't had any pop up in the midwest in my budget range. A Dx has come up a few blocks away from me and I don't know if I should just get it or keep waiting for an Si. Anybody who can help out I appreciate it.
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Old Oct 26, 2006 | 09:10 AM
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It's like night and day. The Si gear is more suited to autocrossing then the Dx. plus isn't the engine a 1.5 compared to a 1.6? So you have more torque and power.
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Old Oct 26, 2006 | 10:05 AM
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I figured that was the case. I know we stress driving on here and not as much the car, but at some point there is a line and I think that may be it. Looks like I might have found an Si anyway.
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Old Oct 26, 2006 | 12:29 PM
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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)
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Old Oct 26, 2006 | 02:35 PM
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Well the world of STS has been upset with the EF finally being beat by something else

I'm hoping my EG Si will be faster than my EF Si.
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Old Oct 26, 2006 | 10:22 PM
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Yeah I was looking at the results from STS nationals. Why is it that all of the Civics are EF's? I would have expected to see more EG's, although I'm still pretty new to autocrossing.
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Old Oct 27, 2006 | 04:37 AM
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Originally Posted by cbags05
Yeah I was looking at the results from STS nationals. Why is it that all of the Civics are EF's? I would have expected to see more EG's, although I'm still pretty new to autocrossing.
Cause when one person does it everyone else does. The EGs are harder to find than the EFs. Plus the EFs can get down to almost 2000lbs in race trim where as I think the EGs can get down to 2100lbs (I'll find out next year). Also the EFs can be had without many options that weigh down the Civic like powersteering, and stereo (optional). Whereas the EG cannot.
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Old Oct 27, 2006 | 06:55 PM
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The main reason I was looking for an EF was because they are typically cheaper and it's a little easier to find one that doesn't have a swap.

So since the 240 won this year will a dozen of those show up next year?
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Old Oct 27, 2006 | 08:52 PM
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Originally Posted by cbags05
So since the 240 won this year will a dozen of those show up next year?
Probably. THe one that won Nationals is up for sale for $19k - WOW!
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Old Oct 27, 2006 | 10:31 PM
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I have a hard time believing he'll get that much for it!
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