Black-Syde

iTrader: (7)

My truck is in my sig. And have a couple of questions about my setup.

Is the stock throttle body and mass air to small for the 6.0? Does the 6.0 have a bigger mass and tb? It does whistle at part throttle and seems to want more air but can't suck it in. I have a custom made 4 inch mandrel bent CAI with 8 in k&n filter. I have a cable driven TB. Does the corvette have a different mass & tb? I want to just change the whole setup to a fast 90mm but don't want to spend that much right now. What do you guys think I should do? And is it worth the trouble to get a 85mm throttle body and a different mass air?

Thanks

thunder550

iTrader: (70)

Stock 6.0's run the same intake manifold, throttle body, intake tubing, MAF, and air box as the 5.3's. I think you could probably benefit from a new intake manifold and a larger throttle body, but you'll be wasting your money on a new MAF.

RickLowpez

run the tb ss intake manifold.it has 90 mm throttle body

thunder550

iTrader: (70)

That's what I'm running. There's some fab work involved to make it work with return style fuel rails and a cable throttle body, since all of the 90mm trucks use ETC. The LS2 truck manifold also doesn't flow much better than a stock one. If he's going to go through the trouble of a manifold swap it would be better worth his time to do either an LS6 manifold or a FAST 90.

mabutler

iTrader: (1)

MAF is a waste of money unless you run a TB spacer and Tornado with it.

TB won't really matter unless you change the manifold also.

Black-Syde

iTrader: (7)

I'm going to just save some money to go with the fast 90 set up. But that won't be til this coming summer after the baby is born.