We are trying to compete in Rally America, and novices aren't typically allowed to run AWD Turbo cars... So they have created a class called Open light... where you can take an AWD Turbo car (Like an STi), yank the turbo, slap a header on it, and run it with half the horsepower... While this is really easy for subaru owners, it doesn't help evo drivers much...

Does anybody know of a manifold setup that will work to accomplish this? Obviously retune is needed (And possibly even different ECU)...

 

A n/a DSm header could be made to work. Some cutting and welding will be needed, but it could be done.

You are fine with the ECU, just need to retune it but it will be dog *** slow.

 

Thats a really stupid idea... the evo has low compression so much that you won't make any power.

Pick a different car, thats your solution.

 

The EVO ECU will handle it. Unfortunately, the 8.8:1 SCR shortblock leaves something to be desired. An entirely different exhaust system would need to be constructed, from head flange to muffler tip. There are other odds and ends, but you get the picture. Doing it right would make it competitive, but that involves changes that you're probably not prepared to make.

You're far better off with a car that has an NA engine if you're relegated to an NA platform. A decent Honda F20C will blow your doors off.

 

Off topic, But I noticed you love the F20C engine. I do too. One of my favorite engines. So efficient. Its HP/L finally got bested this year by the new ferrari, after 10 years.

 

Stock 1G DSM 4G63 non-turbo cars were only 9:1

 

If that's really whay you want to do, I would build 2.4l 4g64, 87mm bore, 11.5 or 12.0:1 compression, custom header all the way down to the cat. It's going to set you back, but you would be the only one in the world with that set up. Or just pull the motor out of a stock lancer 2.4 and drop it in.

 

And pumped out a whopping, what, 135hp at the crank? LOL

 

I'm with you guys! The F20C is an amazing engine.

 

^ this! ^

 

Get a Z06 and make it AWD...I know stupid idea but it would be cool to see lol..just drop in the 2.4L lancer engine (4G69) if you want to stay N/A but make it high compression....either way youre looking at spending a lot of $$$

 

Raising the compression on a lowly 2.4L Lancer engine wouldn't be worth the rebuild cost. There are much better, more practical options that don't leave one with a heavy, AWD, NA 4-cyl car.

 

I would pick a different series to run in rather than making my evo n/a or run a different car.

 

2.4 high compression, mivec head, big cams, custom header and big intake manifold i would bet puts down 250+ whp. Similar setup on a Honda would make 300+ so i'd imagine 250whp is possible. Even at a race evo's weight it would still be fairly quick for what it is.

 

That's the smart thing to do.


Which makes anything Honda a better option, especially since it probably involves a chassis with less mass. Heavier chassis + weaker engine =