Thread: Yet Another DIY GTM TT Install
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Old 05-14-2012, 12:38 PM   #90 (permalink)
esfourteen
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Quote:
Originally Posted by Greedy View Post
I have the Stage 1 GTM TT and opted to go with external gates. I still get about 1 psi over the EBC setting, but does not creep above that. I set the lower setting to 6 psi and it gets me about 7-7.5 psi. High setting is at 10 psi and it ends up hitting 11-11.5 psi. This is with the gain set at 100 - If I turn down the gain, it gets even closer to the actual setting, but it loses alot of TQ early in the curve...
yeah the externals have a bigger path for the exhaust gasses to flow. what exhaust do you have? I would advise anyone going with stage 1 turbos to only get the external wastegates for better low boost control.

I'm looking to have a machine shop fabricate some exhaust restrictors instead of going with HFC, hopefully that will keep me under 9psi with the controller off.
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