: What throttle body to use with Eforce on 05 LS6

08-17-13, 04:15 PM
Currently in the process of doing heads/cam/eforce on 2005 LS6, which throttle body should be used? is there a conversion kit to go cable? Thanks

OneFast V
08-19-13, 01:14 PM
LS2 90mm. do not use an LS 3 as they will not work.

08-19-13, 04:07 PM
You can only use the LS2 TB. You can make your own harness if you're crafty or just buy the Casper harness from Summit etc. You cannot use the LS3 TB, the blade opens in the opposite direction of the LS6/LS2 and will wreak havoc on the PCM forcing reduced power mode unless you hack every safety net having to do with the Throttle body.

08-20-13, 11:16 PM
I have a new nick williams 102 drive by wire I'd be willing to sell if you're interested

08-22-13, 06:36 PM
Thanks guys, any part number for the harness? what are you asking for the 102mm? will a LS2 TB from a Corvette work? anything particular need to be changed in the tune?

08-22-13, 11:26 PM
Even a 90 mm TB is plenty (overkill?) for an LS6 with H/C.

08-23-13, 12:13 AM
Even a 90 mm TB is plenty (overkill?) for an LS6 with H/C.

but with an eforce it should be a good addition correct me if I'm wrong

08-23-13, 07:56 AM
Any LS2 will work regardless of what it came off of. You can google LS6/LS2 conversion harness and you'll find info for the Casper harness. For the TB alone, you'll have to change the scaler value in the tune. There will be a LOT more things to change for the EForce and cam. Are you keeping the MAF or going SD? I went SD when I did my EForce, the '04/'05 PCM's don't have enough resolution in the MAF tables to use the LS3/7 card type MAF's.

Don't know if you've seen my EForce threads yet, you can PM me for any questions you may have about the install.

08-26-13, 12:37 PM
For the harness.....



Even a 90 mm TB is plenty (overkill?) for an LS6 with H/C.

Exactly why I went the NW 102 TB :lildevil: