topgunjames
Member
sup all, a few of us are experimenting with a 60mm TB upgrade from a magna. today i tested the bigger TB without taking off my manifold just to see how things go lucky i did this cause i came across a few problems. First the reves werent jumping all over the place which was good however at idle 1000rpm the car sounded like it had huge cams like it wanted to turn off, secondlly theres a loud whinnning sound coming from the TB, im suspecting both problems are due to the idle speed motor, what do you guys reckon?