Is there any way to make the TB more responsive through HPT?

[Akai oni]

I know that our sstem is Drive by wire... my question is, is there any way to make it more responsive or to where the TB closes faster to help revs drop quicker by tuning in HPT?

Im going to be getting an LS4 TB here pretty soon and i've heard that they close even slower than our TB's and the revs hang even longer...

Id really like to find a way to help the revs drop quicker and if it can be done through HPT that would be awesome.

[MGM1979]

I haven't played with it yet, but there is a setting...dunno what it is off the top of my head, but I think it was someone here who pointed me to it.

[aikidoshadow]

+1 on this question. I was wondering that too.

[bc3tech]

rev dropping / picking up could also be quickened by a lightened flywheel, if you don't already have one... just to approach your "issue" from a different angle :)

[aikidoshadow]

Good point I was thinking about changing the flywheel, later on when I go to replace the clutch.

[Cat Ion]

rev dropping / picking up could also be quickened by a lightened flywheel, if you don't already have one... just to approach your "issue" from a different angle :)

That's what I was thinking too. Lighten rotating mass makes it spin up quicker but also slows down fast once you get outta the pedal. Not sure if altering the programmed signal would make it close fast enough to notice significant improvements. But I also don't know shiznit about HPT.

[GMRedline]

I have an LS4 TB and it has great throttle response. Almost too much to the point where it is touchy. My tuner is actually trying to figure out a way to make it less touchy. Unfortunaty, that table probably does not exist in HPT.

LS4 on the left

http://i135.photobucket.com/albums/q134/ericbristol/redline/DSC02245.jpg

Flow matched to the inlet of the SC

http://i135.photobucket.com/albums/q134/ericbristol/redline/DSC02247.jpg

Installed on car with a 3.5" to 3" coupler.

http://i135.photobucket.com/albums/q134/ericbristol/redline/DSC02336.jpg

[Doc]

I'm doing the LS4 thingy in a few days....maybe the weekend.

[MGM1979]

I'm doing the LS4 thingy in a few days....maybe the weekend.

Lemme know how that goes - might be right behind you on this one...

[bc3tech]

if LS4 is too much, maybe should just have ported the stocker... :shrug:

[BlackChrome]

Yeah I hate the way the rpm's hang after you get on it, then stop in neutral. I have heard it was the ecm burning off excess fuel. It's annoying, makes me wear my clutch by putting it in gear and letting out the clutch a little to drop the rev.

[Doc]

I changed the clutch and they didn't hang as much. Just something to think about.

[bc3tech]

I changed the clutch and they didn't hang as much. Just something to think about.
flywheel as well or just clutch? identical clutch?

[Doc]

when I went to the exedy from the stock clutch

[Cat Ion]

less mass than stock, methinks?

[Doc]

I also remember when I added the GMPP manifold I got better throttle response. That was a LONG time ago :lol: too.

[aikidoshadow]

Jesus I fail, why the hell didn't I finish reading this thread? It could have saved everyone the trouble of answering my question that was already answered here. My bad, thanks everyone.

[csementuh]

That LS4 TB looks nice! Can't wait to do that mod...

[GMRedline]

I'm doing the LS4 thingy in a few days....maybe the weekend.

Did you ever get around to doing it?

Interested in your opinion?

[aikidoshadow]

me too I have mine in box

[Doc]

Nope :lol: didn't do it.

[csementuh]

What is the best place to buy a LS4 TB? A junkyard? Or know anyone who sells them cheap?

[aikidoshadow]

junkyard maybe usually someone is selling them on the shortbuss