I was wondering if anyone has boosted their Evoi 8 to 25 PSI yet?

Could the turbo handle it? The block?

Whats the power potential there for 25 PSI of boost on the Evo 8 motor?

 

Why not? My 4g63 powered '95 Talon with small rods ran 25 psi last year many times.

 

Using the standard EVO8 16G? Prolly not that impressive. Will probably be about the same as the 20-21psi numbers if I had to guess.

Thomas Dorris

 

The motor should take 25psi without problems.
Will the stock fuel pump and injectors take 25psi?

 

The motor can probably handle it fine. You can try and boost up to 25psi and safely have nothing happen. The turbo is probably only capable of spooling up to 21psi. Anything higher will garner no power gains. The turbo can only spool so fast, anything more and it's wasted air. Similar to the stock turbos in my Supra. Any more than 20 psi and there was no difference. It ran safe just got no more power out of it. I don't think more than 21psi is capable out of the stocker.

 

I wonder how the HKS 3037S turbo and the Pruven Intercooler will do on the Evo 8?

heheheheheh

 

25 psi on the stock turbo? Why in the world would you....its well out of its efficiency range according to the compressor map.

 

Just curious, What is the stock PSI?

 

THEY SAY STOCK, THEY PUSH ABOUT 19.5 POUNDS OF BOOST... HOW ACURATE THAT IS I DONT KNOW!

 

Cool, thanks, I heard 19 so that sounds about right

 

At its highest point I think its 19 and then by redline it tapers off to 16. I think they did this to give you plenty of midrange power but not to stress the motor out too much at high rpms. And we all know it can take much more than that.