its not that, me and my dad put a lt4 hot cam in his 96 trans am and no noise, I am prettysure its my opti

 

take a piece of vaccum hose aboth 2 foot or so place it on the opti when the car is running and stick the other end in your ear check all the parts you may think may be the problem be carefull don`t get to close to any moving parts. this is an old shade tree machanics trick

 

I have already done that aout 10 times and it is the loudest at the opti. But thanks for the help anyway.

 

The Extreme Duty chain set is not as loud as a double roller. This should not be it. If it the Opti and it is whining that bad you need to pull it before something breaks worse. Is it a metal-on-metal whine?

Jim

 

not really sure. For some reason when the car first starts when cold, you can barley here the noise it is just a slight noise, but when it gets warmed up it gets louder. So when things get heated they expand, maybe something is rubbing when hot? But also when you drive for a while it gets quieter. I pretty much have no earthly idea what it could be. But the car runs fine runs smooth and revs fast and does not hessitate, and it has great throttle response.

 

Every time I let a weird noise go without figuring it out and fixing it, it breaks and leaves me stranded somewhere at least 10 miles from home, so I don't do it anymore. Also you could be generating metal chips or who knows what else to damage the motor or parts. My advice, pull the Opti and check everything. Pain in the ***? Sure, but less of one than being stranded and paying for a tow at 2 in the morning... Been there, done that. Flatbed = $125 gone.

Jim

 

ever consider that it might be the water pump? since you just put in an electric pump AND cam, don't assume it's the cam. that, and the bumping up the idle 200rpm sounds like a pump turning on and off...doesn't it? ....just my thoughts...
~Erik~

 

when i installed my lt4 cam, my alternator made high pitch noises. might want to check it out.