just picked up a bbk 80mm tb for cheap. done some reading on the forums and gotten mixed signals bout it being worth installing. any opinions?? suggestions?? mods r in sig. thanx

 

on a h/c setup...yeah...its worth something...

don't expect anything huge.

usually people say they are not worth it due to the HIGH cost and small gains. you'll see most of the similar gains with a ported stocker.

but if you can get it cheap

 

75 bucks...cant beat that. thanx 4 the reply

 

anybody else got nethin?

 

Besides that it is larger than your intake port?

IMO sell the bish for a proffit and use the cash to buy a ported stocker and other stuff.

Not to pick on you but you don't have Z06 heads, they're LS6 heads. Z06 is the performance package for the Corvette that has the LS6 engine.
Also saying they're aluminum is redundant since all LS heads are Al.

 

something that big is mainly only good for a full on drag car its unnecessary for a street car

 

Doesn't have to be a "drag car" to warrant a larger throttle body. Any car with a built motor could maybe need it as a complimentary part of their combination.

 

A bigger or ported TB is needed when doing a cam swap or anything past that.

 

so i installed the tb and started up the car...whole idle was going up and down from about 1500-500 , even after it had warmed up. went back and checked all the vacuum hoses, and sensors...and theyre all tight n where theyre sposed to be...ideas on what this is?

 

You need to reset the computer then do the idle learn proceedure.

 

how? and can i reset the computer without messin up the tune for my cam??

 

PCM reset:
You turn the key on without starting the car, pop the hood and get in the underhood fuse panel, pull the PCM batt and PCM ign fuses, wait about ten minutes, reach in and turn the key off, then reinsert the fuses.

Idle relearn:
Now start the car and let it idle for ten minutes then turn the airconditioner on max and let it idle for ten more minutes.


This will have no effect on your tune at all.

 

ok thanx...last question.do i still turn on the airconditioning even if it doesnt work??

and i read on another posting that i should not mess with the screw on the throttle body to change the idle...this tru??

 

Why doubt? Just do it.

Yeah don't mess with the screw.

 

sounds good...thanx 4 the info AL SS590