New Results For Our 2.5l On E85 Race Fuel And Hks 3037s

[600hp]

Hey guys,

Scott over at Insight Motorsport is doing a great job of tuning our 2.5L WRX on E85 race fuel.

Currently it now up to 260 KW at the wheels on 12psi only and at 6000rpm.The turbo is an HKS 3037s with a 1.12 a/r rear on it.The HKS gate is struggling to hold boost also so we are looking at upgrading it soon.

Once its all finished we hope to have it up to around 275 at those revs and boost plus we will be revving it out to about 7500-8000rpm.

Scott this it should make 300 on 12psi without really trying. Also no cam timing yet as we are just getting the car ready for the track for next Monday.

There are some pics here of the engine bay

http://www.rexnet.com.au/forum/index.php?/...x/page__st__230

[scotty nm35]

Nice, plenty of room in there.

Are there any oil draining issues running the turbo on an angle like that? I may have to do the same thing to the 3076 when I put it in.

[600hp]

There isn't much of an angle when you get down and can see it first hand. Once its finished I'll post up the dyno sheet

[lachlanw]

care to elaborate on "the hks gate is struggling to hold the boost "

[600hp]

Since we are now running E85 (there is more exhaust gas), the gate can't bypass enough gas to keep the boost down low. ie 9psi which is the gates base spring pressure.

[R31Nismoid]

Why such low boost with that turbo & rear housing combo?

Some sorta racing reg's?

[Harey]

Why such low boost with that turbo & rear housing combo?

Some sorta racing reg's?

My assumption is because the wastegate could not control boost properly they were being conservative until that is sorted.

[600hp]

Have to set the car's suspension and brakes up plus aero and just normal prep.