Shuddering / knocking when going for it......

[Goosey]

I have a UK spec, whipple supercharged GT with about 830bhp, recently added a small pulley a QA1 Carbon fibre drive shaft, mantic clutch and gforce axles. Every now and then when giving it some power in say 3d or 4th i will get a shuddering sensation, if i back off the shuddering continues but less so then slow right down it goes. The next time i get on the power it can be fine there seems to be no logic to it. I know i am not breaking traction and you can really feel the sensation of juddering, it almost puts you off going heavy on the gas pedal? Is this a sympton of the drive train set up? when cruising and taking it easy there is no NVH, and i can comfortably sit at 80 with no noise at all. Get on the gs, get to 80 in 3rd and like i say a shudder. Would welcome views as to what it might be. Checked all the obvious stuff such as wheel nuts etc, but this seems an odd one.

Sponsored

 

[kluke15]

what rpm are you getting into the throttle? ive read people with mantic complain of a little shudder at lower rpm especially during the break in period. i have no experience with a mantic but just from reading that could be something.

 

[Kong76]

Sounds like clutch slip or tranny. Mantic can handle your power if broken in and installed correctly. Mt82 is another question.

Sponsored