Throttle body for whipple 2.9L
Thread Starter
On The Tree
Joined: Mar 2015
Posts: 168
Likes: 14
Throttle body for whipple 2.9L Hey all, I'm installing an LSX 376 B15 into my 96 Impala SS along with a Whipple gen 3 front feed 2.9 blower. My goal is 750WHP but may not make it there if I run out of budget for the independent 10 rib front feed setup, but hopefully I could squeak out 700whp (possibly on E85) from the factory 6 rib loop if that doesn't work out. I just ordered complete camaro accessories and will be mocking everything up as soon as they come. Finally time to focus on some of the smaller details. I am new to the LS world so I really don't have much experience with what works/what doesn't.
Looking for throttle body and MAF options for the power levels I am after, as budget minded as possible but something that won't leave too much power on the table or cause me any tuning issues. I believe the whipple uses something crazy like a 112mm inlet, so it seems like most TB's would work.
I spoke with PSI conversions and they recommended their harness using an E38 ECM. I was hoping to go drive by wire, but I don't really mind using a cable throttle body if there are any advantages (or no disadvantages with a lesser cost).
What do you guys recommend?
Looking for throttle body and MAF options for the power levels I am after, as budget minded as possible but something that won't leave too much power on the table or cause me any tuning issues. I believe the whipple uses something crazy like a 112mm inlet, so it seems like most TB's would work.
I spoke with PSI conversions and they recommended their harness using an E38 ECM. I was hoping to go drive by wire, but I don't really mind using a cable throttle body if there are any advantages (or no disadvantages with a lesser cost).
What do you guys recommend?
Thread Starter
On The Tree
Joined: Mar 2015
Posts: 168
Likes: 14
Bump, anybody? I see the coyote guys using 135mm and 150mm TB's on their 2.9 setups and it seems like the bigger the better. guys gaining some significant hp gains from larger TB's at 750-800rwhp. I'm assuming the 109mm is the way to go?
TECH Fanatic
Joined: Jun 2014
Posts: 1,533
Likes: 12
Your not going to need a MAF. Have who ever is tuning it to go speed density. I would just go an ls3 90mm TB. Or if you wanna spend $600 for the nick Williams 102mm . These are both drive by wire. Lot more cheaper options if you go drive by cable.
