Overboosting Bad...Nothing has changed from the original tune
#1
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Location: In the middle of cornfields., IL, USA
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Overboosting Bad...Nothing has changed from the original tune
So my setup is a Log manifold with a 60trim t3/4. I have the s300 with the boost solenoid for boost by gear. I am tuned to a max of 22psi. I took my car out the other day and now it is breaking up on the top of 3rd and 4th gear. I am hitting boost cut as soon as the car sees high boost. I took the boost cut up to see where its at and I hit 30psi and will hold it too. My question is...Why have I had no problems all year and now for some odd reason it wont hold what I am tuned at or what I tell the S300 to have my boost at? I swapped the bov and gasket to a real Type-s and still same problem. Any help is highly appreciated.
#2
what boost control solenoid are you using? with my mac one, there must have been some break in period. i had the duty cycle set at 72%, and that worked fine for almost a week, but then i started hitting the boost cut. dropped it back to 63%, and now it's holding steady.
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