Join Date: Jun 2010
Location: Gloucester, VA
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GTP38R Boost Control Problems?
I recently replaced my turbo with a GTP38R, Turbo-Master, Bellowed Up-Pipes, and PHP Hydra. When running on the 80hp performance tune doing a WOT pull in 3rd gear my 35 PSI gauge would max out and ses would activate. I started backing out the turbo-master and now i'm all the way backed of (the WG practically hangs open) and I still peak out between 32-34psi no ses however, of course with the WG controller set so low have bad lag. My question: is this normal for it to boost this much with the wastegate open? My engine is all stock (far as I know) and I need to keep the WG controller clamped down to eliminate the lag but, then I risk overboosting the truck. I was wanting to set the max boost to 30 PSI but that cannot be achieved. I've read that the safe limit is 35 psi conservatively.
Or do I just need to clamp it down and modulate boost with the foot?
2012 Volkswagen Jetta TDI 38 City / 54 Hwy
99.5 7.3 F-350 4.10 Dually 4x4 GTP38R, Turbo Master, PHP Hydra, DIY Tymar, Amsoil dual bypass filter, Amsoil 15w-40, 2-stroke fuel additive
(Sold) 2006 6.0 F-tree fiddy, EGR Delete, SCT Livewire, Custom Blown Standpipe O'Rings, Custom Sticking IPR, Special tune that causes it to break down only on the wife