Lower Stock Boost Max

[thehemi]

How much boost does the stock wastegate allow? 12-15 psi?
I'm turbocharging my '99 with stock injectors and a SyTy turbo,
and I don't want to go beyond 10 psi. Can I buy parts to swap
into my wastegate to lower the max boost to 8-10 psi instead?
(Perhaps even less than that and I boost control it up to 10...)

 

[TYTILIDIE]

Re: Lower Stock Boost Max

Hell, if you want to stay that low just run a piece of VAC line from the compressor housing to the WG actuator. It will run about 8psi. Stock WG actuator will get you probably more htan 20 psi but is set to 15 factory. All you would really need to do is get you an EBC (works very well) or turn the rod in out til you get your 10 psi.

 

[ghettosled]

Re: Lower Stock Boost Max

the stock actuator is set to 8psi, so as long as you don't restrict the vacuum line or plug in the electronic boost control selenoid the turbo will make 8psi. By tightening the rod or installing a boost controller it will make as much boost as you want (well to a point .