LS1 throttle body???

[bustacap54]

http://zzperformance.com/zzp/proj_ls1_intake.htm

has anyone heard about this, i sent them an email, sounds like it seperates the MAF and the TB.

thanks

PS, sorry if this is old news, but it's new to me

[DEE97GTP]

Yup ;)

It should be out in the next few weeks.

DEE

[Silver3800V6FBodyKY]

what good does it do?

[Patrick Javert]

Will this work on our manifolds, or does it only work on GTP sc's?

[DEE97GTP]

Even the GTP needs and adapter plate, and the TB is modified a few ways. This is probably a little large for you guys unless you have some serious mods. Even then, you would have to make sure that you port the intake manifold as wide as the TB(70mm). This isn't a problem to port the supercharger that much. If you can't then it is counter productive.

DEE

[Patrick Javert]

Anything we do to our engines as far as intake and exhaust are concerned affects power output a lot. The engine can only get as much air in as the lowest flowing component. So if we did lid, filter, cold/ram air, headers, cat, and cat-back, we'd see a good gain on the throttle body. Once we get it, we can send the tb to ssm and have them match port the tb to the intake as well. then we'll really be able to feel a power difference between a car w/ the power pak and stock tb, and a car w/ power pak and ls1 tb. At the very least, we'll see somewhat better throttle response.

[DominusEtDeusNatus]

<blockquote>quote:</font><hr>Originally posted by Patrick Javert:
Anything we do to our engines as far as intake and exhaust are concerned affects power output a lot. The engine can only get as much air in as the lowest flowing component. So if we did lid, filter, cold/ram air, headers, cat, and cat-back, we'd see a good gain on the throttle body. Once we get it, we can send the tb to ssm and have them match port the tb to the intake as well. then we'll really be able to feel a power difference between a car w/ the power pak and stock tb, and a car w/ power pak and ls1 tb. At the very least, we'll see somewhat better throttle response.<hr></blockquote>

How do you know that our throttle body is the restriction?

[Patrick Javert]

It will become one eventually. if you do(on a 98+) whisper lid, K&N, ftra, remove maf screen, ssm powerpak, and ati sc, it'll be a restriction for sure. Ask people who have p&p their stock tb/maf and see if they've gotten any better gains.

[DominusEtDeusNatus]

<blockquote>quote:</font><hr>Originally posted by Patrick Javert:
It will become one eventually. if you do(on a 98+) whisper lid, K&N, ftra, remove maf screen, ssm powerpak, and ati sc, it'll be a restriction for sure. Ask people who have p&p their stock tb/maf and see if they've gotten any better gains.<hr></blockquote>

Who did you ask that has to confirm this? I see you mentioned ATI SC up there. So you talked to who again that has that setup? You tell me to ask ppl to see, so I'm assuming that you did that yourself. So who is it that said this?

[Fin]

<blockquote>quote:</font><hr>Originally posted by Patrick Javert:
Ask people who have p&p their stock tb/maf and see if they've gotten any better gains.<hr></blockquote>

It's pretty pointless to do this on a stock car.

[bluecmaro96]

*MODERATOR EDIT*

This type of attitude does not help anything either.

[ May 20, 2002: Message edited by: Magnus ]</p>

[DEE97GTP]

I guess the fact of the matter is this. Theoretically, you probably won't see much of a gain on a stock car(unless someone has proven otherwise, or you may actually loose power with a 75mm). Remember air velocity is important.

However, I don't think anyone can definatively say that you won't see good gains from a better throttle body( I have seen no proof to the contrary). And I am not talking about your home port and polish. The stock TB is not as efficient as it could be. So a 65mm TB could flow drastically different from an optimized 65mm TB.

Until someone does a flow study on the different TB's, and looks at how much vacuum(aka restriction) the stock TB causes. There is no definative answer.


DEE

[Patrick Javert]

Considering that if everything else in the intake and exhaust tracts are done, then tb will be the next restriction. I'm sure that a few hp/tq will be seen even if you did everything except sc, ssm powerpak, and nitrous. I did not talk to anyone who has done the ati kit. I told you to ask people who have ported the stock throttle body, no matter what the mods, if they experienced more hp/tq or even better throttle response. Also, there isn't gonna be a loss of power if you switch to a bigger tb unless you haven't tuned the car(new maf sensor means programming is usually required, especially since ls1's have more injectors as well as larger injectors). Intake stuff is not like exhaust. Reducing intake restiction means the engine has to make less vacuum to get more air into the cylinders. This will help hp output, not hinder it, no matter what has been done to the car, whether it be stock, or heavily modified. On a stock car, there are worse restictions than the tb, so you'll only see slightly better throttle response, later w/ more intake, exhaust mods, you'll notice that each mod is making a few more hp that what is advertized. If I'm wrong, prove it. Test the thing on a stock intake/exhaust, a slightly modded intake/exhaust, and a heavily modded intake and exhaust. Until then, Don't flame me.

[DominusEtDeusNatus]

<blockquote>quote:</font><hr>Originally posted by Patrick Javert:
Considering that if everything else in the intake and exhaust tracts are done, then tb will be the next restriction. I'm sure that a few hp/tq will be seen even if you did everything except sc, ssm powerpak, and nitrous. I did not talk to anyone who has done the ati kit. I told you to ask people who have ported the stock throttle body, no matter what the mods, if they experienced more hp/tq or even better throttle response. Also, there isn't gonna be a loss of power if you switch to a bigger tb unless you haven't tuned the car(new maf sensor means programming is usually required, especially since ls1's have more injectors as well as larger injectors). Intake stuff is not like exhaust. Reducing intake restiction means the engine has to make less vacuum to get more air into the cylinders. This will help hp output, not hinder it, no matter what has been done to the car, whether it be stock, or heavily modified. On a stock car, there are worse restictions than the tb, so you'll only see slightly better throttle response, later w/ more intake, exhaust mods, you'll notice that each mod is making a few more hp that what is advertized. If I'm wrong, prove it. Test the thing on a stock intake/exhaust, a slightly modded intake/exhaust, and a heavily modded intake and exhaust. Until then, Don't flame me.<hr></blockquote>

I'm going to say that you won't see any gains on NA or nitrous car. Prove me wrong. I want to see tests. Dyno charts and track runs.

[Fin]

<blockquote>quote:</font><hr>Originally posted by Dom:


I'm going to say that you won't see any gains on NA or nitrous car. Prove me wrong. I want to see tests. Dyno charts and track runs.<hr></blockquote>

I'm in line yours & Dee's type of thinking. I'd like to see tests run on the different MAF/TB's, both P&P & not, to see what the differences are, if any, on a stock car & on a heads/cam car. There's no proof anywhere that says the MAF/TB is a restriction, everyone assumes since it's 'stock', it's not good enough.