Gains w/ long tubes after blower

[grocerygetter]

I've heard the same thing you were told...I'm just looking for the proof. Seeing/witnessing is believing.

[gnturboray]

Us GN guys can have hard heads when believing. I think it comes from looking at the GN setup and having to throw everything we know about hotrodding out the window to make these v6's run right.

[camslambam]

Headers usually net tvs2300 setups 30-40rwhp more.

[axis]

Originally Posted by camslambam

Headers usually net tvs2300 setups 30-40rwhp more.

I think he wants some proof and not just someone saying they do.

[grocerygetter]

Well...I thought about the FI section...but by definition ... This is adding headers.
Yah, axis is right. No offense intended, but see first post. 'they' can 'say' whatever...I want to see proof and share it with everyone on the forum.

[grocerygetter]

If a vendor wants to send me some for free, I'll do before after dynos myself.

I'm36, I've had a few fun cars and like my GN brethren above said, I take some convincing. I'm not trying to offend anyone or any vendor. I'm just trying to see some proof. If the proof is there, undeniably, I'm on board. My gut instinct is that the gains may be there, but they are going to be insignificant and the general consensus is going to be efficiency and that you have to pulley the car to get the boost level back.

[POWERFREAK]

My understanding is that less exhaust back pressure will actually lower the amount of boost the blower is making. So, if your car gains only 10hp with headers, it's doing it with less boost. If you can swap pulleys to make up for the loss, you'll see more then 10hp without going nuts with boost.

[mikepage0007]

jenetty and maryland speed are the only 2 people i know who actually did some lt testing....check and see if you can find ted,s test #,s also brandon was more recent with some kook headers..

[2010 4 DW]

Originally Posted by grocerygetter

I need to see proof of gains from long tubes.
I want to see a car supercharged then only headers added and tune tweaked. No pulley swaps allowed. No other mods allowed. Dyno or time slip is fine.
This can be ls3 l99 or lsa.
I've seen proof locally of maybe no gain to 10 to 15 whp tops. That's a hard pill to swallow for 1k. I could do some Jba test pipes and rock that cheap.

You could make TONS of HP and run some of the fastest times like Padre with his setup.

http://www.camaro5.com/forums/showth...=jba%2A&page=2

[JANNETTYRACING]

Originally Posted by grocerygetter

I need to see proof of gains from long tubes.
I want to see a car supercharged then only headers added and tune tweaked. No pulley swaps allowed. No other mods allowed. Dyno or time slip is fine.
This can be ls3 l99 or lsa.
I've seen proof locally of maybe no gain to 10 to 15 whp tops. That's a hard pill to swallow for 1k. I could do some Jba test pipes and rock that cheap.

We ran this test many many times, the thing you have to keep in mind is this.

Once a Blower is installed and a Pulley is selected the blower set up Dictates Power Production X Blower Speed Moves X Air which can only Make a Maximum of X Power.

Boost is a Product of Restriction, Exhaust manifolds and Factory Cats are part of the restriction.

Install Headers and Highflows and Your Boost Pressure Drops 1 PSI but gains 10 RWHP.

What this does is Leaves More room for More Air and Fuel without running in to Detonation, Providing Tuning is Correct of coarse.

Now you can pulley down and gain back the 1 PSI boost you lost with Headers and Realize a 35-45 RWHP Gain with headers and Pulley combo all still on the Same Octane.

Ted.

[caverman]

Also, you don't have to spend $1k on headers. You can pick up a set of OBX or something similar with off-road cats for right around $500. For that kind of money even 10 rwhp isn't too bad.

For $950 you can get some KOOKS that are ceramic coated.

I haven't done much research on FI since I don't ever plan to spend that kind of money but from my understanding the more you can get the exhaust to flow out of the car the better it will be.

[Jason 98 TA]

We had a customer gain 25rwhp from the tsp headers & cats with stock h pipe on a maggie car. I'll see if I can find the dyno sheet for you guys. Headers will be a no-brainer for sure on a boost car!!



http://www.texas-speed.com/p-2168-te...ro-ss-62l.aspx

[tony1]

Originally Posted by JANNETTYRACING

We ran this test many many times, the thing you have to keep in mind is this.

Once a Blower is installed and a Pulley is selected the blower set up Dictates Power Production X Blower Speed Moves X Air which can only Make a Maximum of X Power.

Boost is a Product of Restriction, Exhaust manifolds and Factory Cats are part of the restriction.

Install Headers and Highflows and Your Boost Pressure Drops 1 PSI but gains 10 RWHP.

What this does is Leaves More room for More Air and Fuel without running in to Detonation, Providing Tuning is Correct of coarse.

Now you can pulley down and gain back the 1 PSI boost you lost with Headers and Realize a 35-45 RWHP Gain with headers and Pulley combo all still on the Same Octane.

Ted.

yeap!! when you go L-Tubes your boost will drop.. then pulley down to get your boost back to same level

it's a MUST on a FI car.

[grocerygetter]

I have this conversation going on elsewhere also...here was one reply to me not from this board:

Headers on a supercharged application will not help. Will. Not. None.

Here's why. The blower scoops in the air and mechanically squishes it and shoves it out. Mechanically it's going to pump the same amount of air regardless of boost pressure, exhaust pressure, whatever. When you uncork the exhaust you simply reduce the pressure the mechanical blower is shoving against. The supercharger doesn't care though. It's mechanically shoving a scoop of air out. That volume/airflow doesn't change. The scoop of ambient air has no idea what's happening downstream. The only, and we're talking minuscule, gain you could ever get is reducing the amount of exhaust in the chamber. That's like a fart in the wind though, so it doesn't really pay off much.
At 500whp are you really going to notice 10-15?