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After installing an 88mm pulley ( replacing the 90mm pulley) on my GTM/ Gamma stage 1.5 supercharger I had run into tuning issues. Because the intake runs parallel to the
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03-09-2017, 02:15 PM
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Base Member
 
Join Date: Sep 2014
Location: Akron , Ohio
Posts: 199
Drives: '10 370Z Roadster
Rep Power: 11  |
GTM Stage 1.5 s.c. tune issue
After installing an 88mm pulley ( replacing the 90mm pulley) on my GTM/ Gamma stage 1.5 supercharger I had run into tuning issues.
Because the intake runs parallel to the cat. converter on the stage 1.5 setup, the intake was drawing in hot air during the dyno pulls. The air was so hot that the tuner could not get numbers over 400 hp. I've rescheduled a tune where I'm going to pull off the metal under tray and I'll have a commercial floor drying type fan underneath the car also to try to cool the air. My tuner was concerned that the 88mm pulley was overspinning the sc, as the pulley made 11 psi . Thoughts on that? He now has he car neutered until the new tune... Ughhh |
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