Wierd throttle issue

[James GT-T]

Hey guys having a wierd issue with my r33.

On full throttle applications if I lift off at say 6000rpm the revs will keep climbing for a second even though the accelerator is off. It only does it at WOT and only at high rpm.

 Throttle cable is free and I've ran the car and sprayed everything with brake cleaner looking for manifold leaks with no luck.

Car starts, runs and drives perfect every time.

 

Has turbo upgrade, plazmaman top plenum, z32 afm, z32 ecu, 1200cc injectors and the usual other bolt ons.

 

Any other ideas what it could be?

 

 

Thanks

 

 

 

 

 

 

[GTSBoy]

Despite your findings, it can only be the throttle remaining open after you release it. The presence of an FFP just adds more likelihood that there's something weird going on with the throttle.

Put a goPro under there and film it while thrashing it.

[James GT-T]

21 minutes ago, GTSBoy said:

Despite your findings, it can only be the throttle remaining open after you release it. The presence of an FFP just adds more likelihood that there's something weird going on with the throttle.

Put a goPro under there and film it while thrashing it.

Thanks for the reply I didn't actually think of that with the go pro, I've operated the throttle 100 times by hand and never stuck. I keep going back to a manifold leak but can't find any.

[GTSBoy]

Manifold leak bad enough to do what you're describing would be catastrophically bad.