Cable drive or fly-by-wire - Lateral-g Forums

Jimi-FM3 · #1 03-23-2010, 03:42 PM

Hey guys, I'd like to get your opinion on whether to install a cable drive or fly-by-wire throttle body and why. My LS3 is shipping without a throttle body and I'd like to make an informed choice on the way to go. Thanks for your input.

70rs · #2 03-23-2010, 04:04 PM

I am glad you posted this question Jimi. I would like to see the responses too.

**214Chevy** · #3 03-23-2010, 04:10 PM

Forgive me for riding on the same coat tail, but I want to know as well. Which is better or the benefits of one over the other?

**Steve1968LS2** · #4 03-23-2010, 08:13 PM

Quote:

Originally Posted by 509Chevelle

Forgive me for riding on the same coat tail, but I want to know as well. Which is better or the benefits of one over the other?

Cable: Less electronics.. adjust idle with a tool.. can flip the butterfly with your finger to show off to friends. Down: have to run a cable at the right angle, have to punch it though the firewall, less adjustability, subject to mechanical failure. Oh, with cable you can go with a bigger TB.. like 105mm.

TBW: cleaner install, more adjustability, easy to wire in gas pedal, cleaner firewall, comes with GMPP harness kit, TBW TB ships with all new GMPP crate engines. Down: subject to electrical failure, stuck with 90mm TB, can't blip the throttle from the engine bay so you have non-impressed friends.

I personally love the TBW system on Penny.. many hard miles with no issues.. after all, this stuff comes on new cars so it's pretty dependable (just stay clear of the Toyota TBW stuff)

**scherp69** · #5 03-23-2010, 08:29 PM

Quote:

Originally Posted by Steve1968LS2

Down: subject to electrical failure, stuck with 90mm TB,

Nick Williams now has a 102mm DBW intake. It's the one I'll be getting to go with my 102mm FAST intake. http://www.lgmotorsports.com/catalog...189&osCsid=be3

**Autokraft** · #6 03-23-2010, 04:12 PM

Quote:

Originally Posted by Jimi-FM3

Hey guys, I'd like to get your opinion on whether to install a cable drive or fly-by-wire throttle body and why. My LS3 is shipping without a throttle body and I'd like to make an informed choice on the way to go. Thanks for your input.

Hey Jimi, what are you building?

Kurt

ironworks · #7 03-23-2010, 04:17 PM

I believe it more depends on the ECU system your using. FAST will be drive by cable. Stock GM ECU for an LS3 with be a drive by wire.

There may be more. But that's what I know. It ain't much but it's something.

I have an Extra Drive by wire throttle body if you need it. And a Drive by cable unit if you want that one also.

Jimi-FM3 · #8 03-23-2010, 04:19 PM

Quote:

Originally Posted by ironworks

I believe it more depends on the ECU system your using. FAST will be drive by cable. Stock GM ECU for an LS3 with be a drive by wire.

There may be more. But that's what I know. It ain't much but it's something.

I have an Extra Drive by wire throttle body if you need it. And a Drive by cable unit if you want that one also.

Sweet, I'm leaning towards the fly-by-wire so put my name on that one unless someone on here convinces me otherwise. I still need the ECU and harness, so I can still go either way.

Jimi-FM3 · #9 03-23-2010, 04:22 PM

Quote:

Originally Posted by Autokraft

Hey Jimi, what are you building?

Kurt

Hey Kurt, I've got an LS3 on the way from Turn Key in Oceanside - it's a crate with a little bit hotter cam and valve springs. I'm putting in my 69 AMX project

https://lateral-g.net/forums/showthread.php4?t=25450

**extralight** · #10 03-23-2010, 04:31 PM

I'm interested in everyone's response as well. I'm getting my engine from Regal Performance which has supplied some builds here. Ron there believes that a normal LS engine is fine with drive by wire but one with a hotter cam responds better to cable. He built up a LS3 for his own ride with drive by wire and hated it so much he did switched it out to cable. Given this feedback and his personal experience I opted for cable.