Engine/Power - EJ20T (pre-2006 WRX and JDM) There is replacement for displacement, it is forced induction - OEM 2.0 liter turbo engines in the USDM WRX. 90-94 Legacy Turbo EJ22 turbo engines can also be discussed here.

Asphault Is For Pussies

Old May 26, 2003 | 01:19 PM
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From: GST Motorsports - Rally Division
Car Info: dangerous with a wrench
Step 0: don't build a rally car, buy someone else's. No, really, trust me on this one. I just got done building wrx into a rallycar, and it took about a year longer than my original estimates of 6 months. Go look at www.rallyclassified.com to find prebuilt rally cars for sale.

Step 1: Ok, you're not going to listen to step 0, since nobody evar does. The first thing to do is get a copy of the SCCA rule book (http://www.scca.org), and read it. Now decide what class you want to run in (open or PGT with a WRX). Bear in mind that either class is going to force you to put a restrictor plate in front of your turbo (the stock turbo has a 41.5 mm inlet. Open class requires a 40mm inlet, PGT requires a 32mm inlet).

Step 2: Safety. You'll need a rollcage in the car (I have Primitive Racing's cage in my car), racing seats (the stock seats do not satisfy the rules), skid plates under the engine and the gas tank, 5 point harnesses, fire extinguishers, first aid kit, and a tow rope. At the same time, you'll want to put a rally computer in the car (I currently use a TerraTrip 303+, but I'm going to get rid of it in favor of a Coralba C-Giant).

Step 3: Suspension. I put DMS 50mm coilovers on my car, and I love them.

Step 4: Dirt tires. You'll want to get some 15" wheels and put some gravel tires on them. I use Compomotive 15" wheels and Pirelli X series rally tires. Pirelli's aren't cheap but they work great. A little money can be saved by going with Michelin or Silverstone rally tires. For a rally like Rim, you will need at least 10 wheels.

Step 5: get some experience, go to school. Do a few rallies and learn how it all works, and then go to Tim O'Neil's rally driving school.

Step 6: After all that, then you can think about adding power.

Not a very sexy picture, is it?


Last edited by platypus; May 26, 2003 at 01:26 PM.
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