Generation IV External Engine - Best way to run dual DBW Tb's

Is there an easy solution to running dual electronic throttle bodies on a LS3? Can I tap into my current harness and add another tb connector somehow?

Ive heard of the Holley being able to run dual DBW but their website doesn't give all that much info on a dual setup.

Am I looking at a tuning nightmare when its done also?

This topic has been discussed before. I would try running one DBW TB and create a linkage to the other throttle body so it mimics the other. This way you have one DBW and one manual.

You can't just simple tap into the harness and create another plug. You need to remember that these things work on voltage. So any changes in voltage and it will go crazy.

Contact this gentleman. http://www.torquerush.com/Purchase.html He had a setup I saw in person with twin superchargers and dual 90mm throttle bodies on a Chev Avalanche. I thought he had a kit developed but I don't see it on his current website.

Dual DBW is supported with Holley Dominator EFI. You buy the ECU, and the individual harnesses you'll need, Dual DBW is one of them.


http://www.holley.com/558-411.asp

You do have to run a specific DBW pedal (CTS I think it is) and specific TB's. I'm using a Nick Williams which is compatible.

Charlie

Dual DBW is supported with Holley Dominator EFI. You buy the ECU, and the individual harnesses you'll need, Dual DBW is one of them.


http://www.holley.com/558-411.asp

You do have to run a specific DBW pedal (CTS I think it is) and specific TB's. I'm using a Nick Williams which is compatible.

Charlie

Thanks.

Contact this gentleman. http://www.torquerush.com/Purchase.html He had a setup I saw in person with twin superchargers and dual 90mm throttle bodies on a Chev Avalanche. I thought he had a kit developed but I don't see it on his current website.

I spoke with him before. Those were not working correctly and he pulled them to redo them. Supposed to have something by end of year.

This topic has been discussed before. I would try running one DBW TB and create a linkage to the other throttle body so it mimics the other. This way you have one DBW and one manual.

You can't just simple tap into the harness and create another plug. You need to remember that these things work on voltage. So any changes in voltage and it will go crazy.

Wouldn't it be hard to tune if the second wasn't hooked to the ECM? ECM says throttle open 10% but its actually open 20 since there is 2?