Hey guys im running 24psi on my stock 8 MR turbo with 93 octain. What can the stock 8 MR handle safely? Mods are hbc, hks cat back w/ cat delete, hyperflow intercooler, hks intake, walbro 255, greddy bov. I did search but i mostly found stuff on the 9 turbo or 8's with alky, plus im at work and don't have much time to search.

 

22psi without tuning

 

i would not run more then 24 that might even be a little high.

 

The turbo can handle that fine. However, 24 seems high for 93oct. You many not notice it much now because it is winter. Or you have a gauge that isnt reading right.

Were you tuned?

 

what does it taper to in the higher rpms?

 

You can spike 24 psi no problem on 93 as long as you DONT hold it, your tuned for it and theres no knock


Bluebyu36- Its because the turbo runs out of efficiency at higher rpms

 

That's too high, and you shouldn't be driving around like that with no tune. That's ridiculous and not very smart.

 

X2

 

i only run 22 on 93 WITH a tune. your a bit high IMO.

 

yep 24psi is a little high even on 93....If your spiking to 24 then tapering down to 19-20 and holding that to redline I guess as long as your tuned for it and not getting knock then it would be alright

but w/ out a tune 24psi is just stupid

 

I got it tuned at TT and thats what they set it at but to me it seemed high so I figured Id make this thread.

 

Peak-Yes
Hold- HELL NO!!!

 

Hhmmm i wonder why they would set it that high then. I thought it seemed high but at the same time I figured hey its TT they know what they are doing.

 

24 is no problem... I drive with 31 psi on 93 oct no METH!!!! Yeah 35r too.

 

I wish i had a gt35r lol. I'll be using the stocker for as long as it will let me.