Boost question; I tried searching
06-27-06, 11:33 PM
#1
I'm your turbo lover
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Boost question; I tried searching
I've got a '90 TII and I was wondering what's the highest PSI I can safely run on a mostly stock setup. I have a 3" Magnaflow catback, K&N intake, rebuilt/flowtested injectors, and a somewhat recent rebuild. I know the old Datsun 280ZX turbos could safely run 10psi without even an intercooler so I was just curious. Of course they also have pistons, so it may not be a good example. I was thinking of just getting an MBC and tweaking it up a little for now. What do you think?
Last edited by MazterDizazter; 06-27-06 at 11:35 PM.
06-27-06, 11:58 PM
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The Silver Bullet
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with that exhaust i would see if you have boost creep. witch means death for your motor. If you're looking for more boost then you'll need a fuel cut defender (fuel cut is at 8.5lbs i belive, don't quote me on that) a ported wastegate will help boost creep. hopefully that helps get you started.
06-28-06, 08:14 AM
#3
yes, absolutely an FCD will be required for turning up the boost, with that setup on an S5 you are probably already around what, 8psi? (do you even have a boost gauge that isn't the stocker?)
Anyways the most you should safely run with the stock fuel setup and TMIC would be 10-11psi...
Anyways the most you should safely run with the stock fuel setup and TMIC would be 10-11psi...
06-29-06, 10:53 PM
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10-11, good. I have an aftermarket boost guage and it maxes at 6.5 psi. I should look into an FCD, and I definitely need an AFC to tune the A/F ratio because at present it's extremely rich.
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