LS3 Throttle body
Thread Starter
Instructor
Joined: Mar 2020
Posts: 113
Likes: 28
LS3 Throttle body
Ladies and Gents,
I have searched for days and can not find a reliable answer as of yet. I'm installing a LS3 into my 2000 C5 and can't seem to find out whether anyone has reliably figured out how to make the gold blade TB work with the C5 PCM, at least that I can find. I'm trying to source a silver blade, but due to being discontinued, they are very expensive. Does anyone have a solution, or am I stuck trying to find a silver blade? What is GM going to do for folks with C5s and early C6s that need throttle bodies in the future?
I have searched for days and can not find a reliable answer as of yet. I'm installing a LS3 into my 2000 C5 and can't seem to find out whether anyone has reliably figured out how to make the gold blade TB work with the C5 PCM, at least that I can find. I'm trying to source a silver blade, but due to being discontinued, they are very expensive. Does anyone have a solution, or am I stuck trying to find a silver blade? What is GM going to do for folks with C5s and early C6s that need throttle bodies in the future?
Safety Car
Joined: Aug 2011
Posts: 4,449
Likes: 409
From: Portland OR
https://www.corvetteforum.com/forums...post1600351311
Here you go.
I haven’t tried this myself. But always wanted to.
Ive had the silver blade since 2012. When it had issues I ponied up for a new one found on amazon. I think it was $250
Here you go.
I haven’t tried this myself. But always wanted to.
Ive had the silver blade since 2012. When it had issues I ponied up for a new one found on amazon. I think it was $250
Burning Brakes
Joined: Aug 2011
Posts: 831
Likes: 288
There are a few posts on here, even one by me, that say what needs to be done to get it to work. Long story short is you need to reverse the 4 wires associated with the TPS system. Swap power and ground wires and swap TPS 1 and TPS 2. Then you have to limit the TPS parameters to approximately 94 percent. It does work. I have a gold blade on for about 1000 miles and no issues. This is a throttle body from the rain forest site for I think $75. Or you can go for a Nick Williams TB at around $550. Then there are no issues. I pretty much know why it doesnt work initially, Keyword diode. But need a extra gold blade to play with to confirm. Maybe one day.
Burning Brakes
Joined: Aug 2011
Posts: 831
Likes: 288
