If it peak 22.48psi you're Ok with a good tank of 91 octane, but if you're holding 22.48psi it's a little high, just incase you've a bad tank of 91. I think Vishnu tune 91 oct. with 21 psi peak. Hope this help...

 

yes i know thanks but i have stage 1 from vishnu and i just want to know if its normal with this kit to spike to 1.55bar using 91oct i have in my xede the 91 oct program!

 

it spikes to 1.55 bar when in low rpms and higher gears i push full throttle! also i hits like 1.52 and when it passes 5000rpms it spikes to 1.55 and lowers inmediatly to 1.48 or 1.47!

 

If it's spike to 1.55 you're OK. Make sure you've good tank of 91 octane (76).

 

thanks ! well i use 91 oct from shell!
but do you think that is way on the limit of damaging something i mean detonation?

 

It's OK to spike 22.48psi, if you're worry use 93 octane.

 

Why are you using Shell? 76 is much better.

I peak anywhere from 20 to 22.5 psi, depending on conditions.

 

i guess it depends on which evo (8 or 9) because isnt the boost set at 21 on the IX (Stock of course)?

 

Not that it contradicts any thing said here but shell and chevron are the same gas now. Chevron was bought out by shell, same with the chevron with techron gimmick.

 

i ran 22 for 2 years with 0 issues. it sometimes peaks @ 23 psi.

 

but i still want to know what vishnu thinks?? thanks

 

dustin is it ok to hit 1.55 bar using 91oct?

 

Since Vishnu8 and I were both tuned by Shiv, you should assume the answer is yes.

 

they are on a min vacation.. im sure they will be back soon. (it is christmas time and all)

 

24 psi on my 05 92 octane minnesota gas