My Turbo 3a92 makes insane power!

[allrock]

Million dollar question. I’ve never run boost to this engine without e85. So i’ll say if e85 I feel like 10-12psi is pretty safe. On pump gas detonation will be the limiting factor

Ive watched your video your first pull alone is already impressive that 128hp is a very big difference compared to 74hp, is that 7psi?i think with that psi its very safe for the engine.

[DirtGearTv]

Ive watched your video your first pull alone is already impressive that 128hp is a very big difference compared to 74hp, is that 7psi?i think with that psi its very safe for the engine.

That’s about 7psi. The wastegate spikes 2 psi higher than where it settles. That 128 in a 1000lb frame feels like a rocket. I’m looking forward to testing out the 181hp

[Clessy]

I cant believe you're pushign 17psi on a car without a build engine. I mean e85 certainly helps but man thats a lot on a stock block. Also what are you using for engine management?

[DirtGearTv]

I cant believe you're pushign 17psi on a car without a build engine. I mean e85 certainly helps but man thats a lot on a stock block. Also what are you using for engine management?

Yep it’s a bit for high compression. Detonation is the true killer, the e85 is what makes this level of boost safe/possible. It’s all standalone megasquirt, which is the other reason I can make this happen.

What I find interesting is I mostly compete/compare with buggies/builds that use motorcycle engines. Even like these sierra cars with boosted Hayabusa engines. They make huge HP but non of them make great torque like this setup. This is a perfect setup for a mirage or other tiny cars that benefit from the broad torque