I know the stock turbos are small. But does anyone know the trim of them and the max psi they can handle? About to install water/meth and what to be safe with my psi. Already have a 93 tune from torrie and 3 bar and 170tstat, and corsa exhaust, and gapped plugs.
Max PSI for stock turbos
- Thread starter Corey Sig
- Start date
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bpd1151
Lurking Around
IIRC..... 17/18psi.
Anything beyond that, you're outside of the efficiency range & shouldn't expect much, other than shortened turbo life.
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Anything beyond that, you're outside of the efficiency range & shouldn't expect much, other than shortened turbo life.
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Let me tell you 1 thing about methanol injection that you probably aren't aware of.......
Say you can run the stock EcoBoost turbos to 18# of boost before they start blowing hot air and are out of there effiency range.
With methanol injection,you can run your turbos another 2#-4# because methanol cools the intake air so much.....
So:
Race gas/pump gas the EcoBoost's turbos might only be good to 17-18#
BUT
Methanol injection will allow you to run those same turbos to 19-22#.
The Fastest stock turbo Buick GNs/T Types run there cars like this. 21-22# is the max boost from the stock turbo with race/pump gas. But with methanol injection cooling down the incoming air,guys run them up to 24#......I want to say the fastest run with a stock turbo is low 11's.
I'm pretty sure the Evo guys that have gone fast on the stock turbo do the same thing.
Say you can run the stock EcoBoost turbos to 18# of boost before they start blowing hot air and are out of there effiency range.
With methanol injection,you can run your turbos another 2#-4# because methanol cools the intake air so much.....
So:
Race gas/pump gas the EcoBoost's turbos might only be good to 17-18#
BUT
Methanol injection will allow you to run those same turbos to 19-22#.
The Fastest stock turbo Buick GNs/T Types run there cars like this. 21-22# is the max boost from the stock turbo with race/pump gas. But with methanol injection cooling down the incoming air,guys run them up to 24#......I want to say the fastest run with a stock turbo is low 11's.
I'm pretty sure the Evo guys that have gone fast on the stock turbo do the same thing.
BamSHO
SHO Member
They are small why would you want to put the added stress on them. If you want than more boost, bit the bullet, upgrade them to ATP.
bpd1151
Lurking Around
Given your reiteration of staying within safe ranges.....
My original post still stands.
BAM's correct, the OEM's are small.
Comparing what may be commonly done on other platforms (i.e. Grand National's, or Evo's) has generally speaking, proven not to hold true with these EB powerplants.
17/18psi. max..... meth or not, and you'll retain your reliability and longevity.
I am an example of those statements.
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