2xLS1

iTrader: (25)

Anyone else have have a LS6 intake lean out their car. My O2s went from .890-.920s to .830-.850s after installing one on a heads/cam bolt on car. I don't think it is a vacuum leak. I put new gaskets on the used manifold before installing it.

98Raptor

Can you say MAF translator?

pekkaz

It happens. That looks to be quite a difference though, better check injector seals, TB gasket and all the hosing for safety.

2xLS1

iTrader: (25)

I'd buy LS1edit before I'd buy a MAFT.
I'm thinking it might be the big plug on the back of the intake where the MAP mounts. It seemed kind of loose compared to the one on the stock intake. Anyone ever have problems with a vacuum leak there?

DaleMX

iTrader: (4)

It's got a O-ring. If your woried about it you can always fill the gap around it with RTV. Just clean it up good.

JNorris

iTrader: (4)

What are your LTFT showing at idle (FTC 17) and in FTC 6? Mine went from +3.9% to +6.3% with the LS6 intake.

John