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I am after the "original" wheel / tire size for the 95 WRX Impreza (EJ20G, 4.111 running gear) so I can match up the speedo and performance of original WRX.

I am running 195 / 60 14 's which are too small. The Impreza I know are at least 15" probably 60 series from factory, but not sure. I have tried the WRX forums, but the forums are being restricted to paid memberships, to post

Speedo is too fast for actual speed . Not sure of the formula conversion from 3.7 to 4.111.
3.7 devided by 4.111 =.900024325, (9% difference) but speedo isn't nearly 10% out. probably 5 - 6% at a guess.

At least this would be a base to start, thanks

cheers
Chris

Chris,

8/95 and prior WRX transmission code TY752VB3FA and 9/95 and after code TY752VB4AA are both 4.111 ratios and both came out with 205/50/16 tyres on a 6.5J rim.

Hope this helps - Shaun

Thanks Shaun, your a legend

Tranny code is close to TY752VB 3FA, being TY752VB 3DA/3FA so would be the same.

This will give me the correct , designed performance figures to start with.

Running 14's doesn't give me the legs - so looks like a hub redrill at the minimum, or a 5 stud conversion when funds permit ( + wheels) cause i'm not goin far on rotors only :P

Looking like a 4 corner rebuild, but then again will be excellent when done.

Cheers Chris

Code TY...3DA is from the WRX RA version designed for rally use, still 4.111 but tyre size is 205/55/15 6Jrim to cater for standard 15" rally tyres.

This may be an easier size for you to work from if you can find some Pug 15's???

Much better to do the "4 corner rebuild" - better brakes, rims, tyres, etc

Tried http://www.rexnet.com.au ?