So has anyone found a replacment for high compresion pistons yet? Would be nice to get 13:1 or somthing

 

Tell me what kind you would like and the vehicle. We have plenty of high and low compression pistons being made for the EVO and Lancers

 

well, 2004 lancer ralliart, 4g69 engine 13:1 or compairable

 

Call the shop on Tuesday and we will give you a price and availability
(856) 866 1919

 

Woah, really?! Wouldn't this be an alternative to turbo? I wonder how safe this would be compared to turbo? Plus, dealer wouldn't really be able to tell unless they had to break down the engine.

 

And the irregular ECU readings wouldn't give you away?

 

Are you crazy? 13.1... hot dam, I don't think our engines would last that long. Our engine stock come with 9.5.1, I would say maybe 10.5.1 or even 11.1 (like the rsx-s), but nothing past 11.1

 

how much gain would you get?

 

A trubo causes at least twice as much stress on the engine in comparission to a simple compression increase. 13.1 can easily be done if the car is run rich from idle to about 4000 rpms on pump gas. Race gas (100 octane) would be ideal.

Gaines could easily be 20 - 25 whp. Losses could be a blown engine if you run in to some serious detonation due to lack of proper engine management. You can't just drop pistons into a car. It's not like an intake.

 

20-30whp and a serious kick when the MIVEC engages a la the i-VTEC in the o5 RSX-s.

 

I would think that you couldn't get much higher then 11 or 11.5-1 and stay with pump gas. Here in Florida you can get 93 octane but in Colorado (home) you can only get 91 octane. That makes a difference too.

 

I have a set of the RRM high compression pistons for the 4g94 for sale if anyone wants them. Theyre brand new in the box.

 

i would go for 10.0.1 or 10.5.1 . the most 11.01 but its going to be hard to tune to 91oct and pass smog! 12 and higher is racing pistons you are going to need 100 or higher octane and it's going to suck to start up your motor!

 

if you want to raise your compression up just get a thinner head-gasket.

 

Are you gonna drive the car everyday?.. cause it just doesn't seem very efficient...