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- May 22, 2011
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Obviously ifv youre smokey and egts are up with stock fuel youre having issues. Is your gate running from your up pipes to the downpipe, or from the up pipes to the inlet inbetween the chargers? Ive never been a big fan with larger turbo set ups of gating around the big charger and to the downpipe unless you have ridiculous fuel or nitrous. Youre on stock fuel, there shouldnt be a reason to avoid trying to push the big charger unless youre seeing ridiculous boost numbers, or ridiculous bp number which i would suspect the small charger would be the culprit. You dont see people gating around a stock atmo. Both of you are having boost problems. Id be gating from the up pipes and pushing the big turbo, esp with stock fuel, there is no reason to waste all of that energy. The precision turbo should be able to handle the speed stock fuel would spin it
was stated early in ths thread:
I'm on bone stock fuel, HD300 tune(I have been playing with duty cycle and desired backpressure), and Yes I do have a gate. The gate is routed to the downpipe and I have done some tuning with it as well.
if its smokey, the gate is opening early. with stock fuel i've gated both ways and was not able to drive the atmo any harder either way. fuel limits that. small charger could be a culprit but your idea's about gating hold no water.