LT1 Conversion question
Thread Starter
Safety Car
Joined: Dec 2005
Posts: 4,270
Likes: 20
From: Central Michigan
LT1 Conversion question
For those that have done the LT1 conversion on a Gen 1 engine, where did you locate the air temp sensor? Tried a search, and keep coming up with either the intake ducting(I will be using a clamp-on KN filter for the time being, so no ducting) or "stock location". Sort of narrows my choices down to the manifold itself.....
Melting Slicks
Joined: Feb 2006
Posts: 2,753
Likes: 14
From: backwoods upstate ny
mine is in the center top vac hole...i enlarged the hole and tapped for the IAT thread, IIRC the vac holes in the manifold are all 1/4 NPT and the tPi IAT sensor is 3/8 NPT...some others use a 1/4 NPT close nipple and a 1/4 NPTx3/8NPT reducer coupling.
note that tPi manifolds use a 'shielded' element/threaded body IAT sensor while the LT1 used the 'typ' Gm open element 'push-in' sensor that is inserted into a rubber holder...to reduce potential vac leakage and potential idle speed problems (toyota?) the threaded type sensor should be used whenever the IAT is located downstream from the throttle plate.
Thread Starter
Safety Car
Joined: Dec 2005
Posts: 4,270
Likes: 20
From: Central Michigan
Thanks redrose, exactly the info I needed
I have the TPI threaded type, and will just drill & tap a hole on the pass side of the manifold since that is where my wiring is at
Thanks again!
I have the TPI threaded type, and will just drill & tap a hole on the pass side of the manifold since that is where my wiring is at
Thanks again!
