i have intake/full exhaust 272 cams and on stock evo8 turbo with stock injectors
whats the highest boost that i can run safely?

 

I've always heard 24 untuned, 26 tuned... on 93

 

Like prowakeskater points out....it is octane dependent. That is one important factor. Also, the extent of your mod list(items such as what IC, and even what spark plugs) is important as well as the tune, the altitude above sea level, barometric conditions and ambient air temperature, even whether you are running a cat or not.

 

stock plugs stock IC and 93 octane

 

I'd keep it on stock pressure till u get a fuel pump and a tune. Car runs so damn rich stock, you really need to get tune to feel best results.

 

Let your tuner decide how much boost is safe for you to run.

Don't have a tuner? Get one before touching the boost controller...

 

As much boost as your tuner is able to make power with when getting a tune.

 

^^^ This!

 

car has been tuned. sorry i forgot to mention that in first post

 

If it's been tuned than you need to speak with your tuner and they will advise you...

 

Then it can only run the amount of boost the tuner set it up to run.


-Em

 

Yeah, what he said, if you go above a boost cell that he didnt tune yet your going to have some serious problems, if he didnt tune it yet than it's probably for the reason that you would run out of fuel or something. Bottom line is talk to your tuner

 

I had a similar setup on my 8. But I had a pump. With a tune I could run about 23psi on 93 octance. On race gas I could run as high as 26psi. But it was never tuned for 110octance. This was many many years ago, before map switching was possible on the stock ecu.

 

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