Hey guys, I have a LQ4 with a stock intake and supercharger. I am looking at a new throttle body. I have been reading and guys have been saying it makes a different in the supercharger performance. I am wanting to know what my options are. Is it worth the money? Do I get a 80mm for BBk for $350or have some one port mine? Or is there a another throttle body from another vehicle I can swap with my current one then tune? Any help would be great.

Thanks

 

what supercharger? I'd get a 90mm if I had the money.

 

What supercharger? Well not the Radix that is obvious. Go with one of the manifolds that allows a 90mm throttle body.

 

I have a powerdyne on the truck. I know it was a good deal, Free. So I didn't want to chance the intake yet. Is there a way to upgrade the throttle body with the use of the current intake and a replacement harness?

 

No reason to put a larger TB on there if it just necks down to a smaller size. Change manifolds or don't bother with the TB swap.

 

What is the size of the intake manifold? Would a BBK tb need a bigger intake, even though they advertise it as a stock bolt-on? Like Vortec HD, I am deciding between porting mine or going aftermarket. I don't mean to hijack the thread, but thought we have similar questions