Accelerator shaft noise under load (may not be the input shaft)

[Bwap]

I'm really just looking for peace of mind here. I don't have much experience with straight cut gears (the first gear on the rage accelerator shaft is straight cut), so I don't know whether or not I should be worried.

I just finished my trans build, listed are all the new parts that I am currently running: ACT 6 puck sprung w/ prolite flywheel, new TOB, new TOB fork, Rage accelerator shaft w/ pilot bearing, Rage 3/4 shift fork, all new snap rings etc. when I rebuilt the trans.

The car shifts flawlessly, initial engagement into first gear is a little rough (vibration and clutch chatter). There are a couple new noises that I didn't notice before on my stock transmission (had a SBC stage 3 modular).

1 - in first gear, when launching the car sounds like it has a damn supercharger. There is an audible whine coming from the trans.

2 - in ANY gear, while under load, there is a rattling sound (metal on metal). It sounds almost like a loose flywheel bolt, HOWEVER when the engine/trans are not under load the noise is not present (when coasting and decelerating).

Any ideas? Other accelerator shaft owners please chime in...

[ppx]

i have heard that 1st gear will sound like that. so dont worry about that. its because of the straight cut.

as for your second question, im not really sure.

[lblackneon]

I have also heard that 1st gear will sound like a supercharger with the Accelerator.

[wonderboy]

Quote: Originally Posted by Bwap

I'm really just looking for peace of mind here. I don't have much experience with straight cut gears (the first gear on the rage accelerator shaft is straight cut), so I don't know whether or not I should be worried.

I just finished my trans build, listed are all the new parts that I am currently running: ACT 6 puck sprung w/ prolite flywheel, new TOB, new TOB fork, Rage accelerator shaft w/ pilot bearing, Rage 3/4 shift fork, all new snap rings etc. when I rebuilt the trans.

The car shifts flawlessly, initial engagement into first gear is a little rough (vibration and clutch chatter). There are a couple new noises that I didn't notice before on my stock transmission (had a SBC stage 3 modular).

1 - in first gear, when launching the car sounds like it has a damn supercharger. There is an audible whine coming from the trans.

2 - in ANY gear, while under load, there is a rattling sound (metal on metal). It sounds almost like a loose flywheel bolt, HOWEVER when the engine/trans are not under load the noise is not present (when coasting and decelerating).

Any ideas? Other accelerator shaft owners please chime in...

Here's a video of the accelerator input shaft. As you can hear, the whine in first is normal.


Don't know about that second sound you spoke of.

[Bwap]

Thanks for the input guys. Think sound #2 could be the TOB? It's just strange that the sound goes away when it's not under load...