Rb25de Metalic Resonating

[GTS4WD]

Well what do you know?

Picked up a NISMO cat back the other day..

Runs perfect.. metalic resonating is completely GONE

Hope this helps someone sometime..

[Eug]

really?!??! that's interesting... might go get the fibreglass repacked in my exhaust and see if that helps

thanks for that Cris

[scotty014]

sorry for bringing up an old topic but this sounds exactly like mine but my car is an r34 and its really bad. just wondering where you got the nismo muffler from and when in first gear did your car shudder a little bit when u accelerate but if u do it soft it is fine.

[GTS4WD]

I got the NISMO cat back from Just Jap. Any old muffler or cat back system will eliminate the nasty resonating

Umm.. by shuddering, Im not sure if this is a driveline problem, more so than a engine.

But I have noticed if I am in 1st, and only just creeping along I.e a carpark, it will jolt, but its not a jolt as in "you dont have enough RPM" jolt. It seems like the clutch is slipping. As soon as eve ret my foot on the gas, it completely disapears.

Im kind of doubtfull its an engine issue and not a driveline issue.

As for your engine, the r34 RB25DE with VVT and my Rb25DE with VCT has a different cams opperating system.

Not sure if this answers anything, but feel free to ask more questions if needed.

Cris,

WOOO! MY THREAD DID HELP!

=]

[GTS4WD]

see if this helps..

http://www.skylinesaustralia.com/forums/t188002.html

[Eug]

Umm.. by shuddering, Im not sure if this is a driveline problem, more so than a engine.

As for your engine, the r34 RB25DE with VVT and my Rb25DE with VCT has a different cams opperating system.

probably just need more revs? like border-line stalling...?

correct; both cams on the neo rb25 have variable timing.

[GTS4WD]

correct; both cams on the neo rb25 have variable timing.

AND F*CK THEY KICK HARD!

Im still envious of dad! 2.5K for NEO25T, Loom, ecu, all acc. AND A POWER FC!

[scotty014]

thanks for your help guys. to explain it a little bit better in first gear if i take off really soft its fine but if i put my foot down a little bit more and it revs into the zone where you hear that horrible noise it vibrates a fair bit and then its fine, so hopefully its just that sound making it act like that.