Originally Posted by BowTieHatr
if you do straight cut gears then you will have excessive whine. the main issue is you have excessive rpm and i feel like thats your problem. more rpm, more centrifugal force pulling and pushing. the only thing i can come up with maybe use a preload bolt stop to keep pressure on the cam. then again, you may just find another weak spot.
The whine doesn't bother me a bit, I'm actually quite fond of it.
You are certainly correct about the excessive RPM; but I will not drop the powerband in order to save parts. What breaks can be fixed and at a certain point (I guess when there isn't an international part left in the engine?
) it will eventually become reliable under the stress I put upon it.
The preload bolt is actually a very good idea and might be something I should try before going to the expense of the gears. I'm sure the crankshaft can handle the thrust- not sure about the HPOP pump shaft but an HPOP is a hell of alot cheaper than those gears so if I toast one finding out, no big deal.
I knew I posted this for a reason
