Gains w/ long tubes after blower

[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.

[grocerygetter]

Don't throw a stock lsa out there and then show tune plus headers...that's bogus. You can show me a tuned lsa then tuned with long tubes though.

I'm being open minded here...I understand the gains n/a or with heads and cam.
My last thread resembling this never came to a conclusion. So this time I'm more specific and asking for examples, dyno or time slip.

[jcollins91106]

I think the fi section guy might have more input

[WheelmanSS]

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.

So you wanna spend the 9k+ for a supercharger and them just put some junk pipe underneath the car?

N/A cars alone are making 15 to 30 rwhp with good headers and a tuning. Plus a good header will increase your flow and lower your boost.

Seems like a no brainer to me

[owensmat]

I don't have a blower on my Camaro and I don't have a dynograph to show, as i had it on my G8, but gave it with the car when it left. I had a procharged G8 and it was putting down lower 440rwhp prior to headers. I added Kooks LT headers only and a retune and it only bumped about 10rwhp, which could have been accounted for from other factors like fuel, weather, etc. Not enough to justify the expense, in my opinion. I can also tell you that I recently spoke directly with Lingenfelter and the gentleman told me there is really little benefit to adding headers on our car if we have a blower, outside of sound preference. I'm no expert, but these are two references to consider. I currently have headers and plan on getting a blower down the road. Of course I'll keep the headers on, unless I go for a turbo setup instead, but I do love the sound of it.

[grocerygetter]

What he is talking about on the g8 is right. Is not a no-brainer...it's a brainer. Ls3/a manifolds don't flow bad. But when u factor in boost...things change a bit. New things to consider.
I know there are going to be some vendors slam me...but I think this forum needs to hear this kind of thing and just not from someone selling someone something.

[grocerygetter]

Lingenfelter was in fact one of the sources I heard it from...second hand...but via a very good friend.

[mikeSS]

Originally Posted by owensmat

I don't have a blower on my Camaro and I don't have a dynograph to show, as i had it on my G8, but gave it with the car when it left. I had a procharged G8 and it was putting down lower 440rwhp prior to headers. I added Kooks LT headers only and a retune and it only bumped about 10rwhp, which could have been accounted for from other factors like fuel, weather, etc. Not enough to justify the expense, in my opinion. I can also tell you that I recently spoke directly with Lingenfelter and the gentleman told me there is really little benefit to adding headers on our car if we have a blower, outside of sound preference. I'm no expert, but these are two references to consider. I currently have headers and plan on getting a blower down the road. Of course I'll keep the headers on, unless I go for a turbo setup instead, but I do love the sound of it.

so what were you running before the headers. that would be nuts to run stock cats on a FI setup.

[grocerygetter]

Very few do what I did...buy the car and the first performance mod is a blower...for those that build piece by piece like I was doing with my other car, many will have long tubes. If you are after the nth degree of horsepower and damn the cost...then yes, go long tubes. I'm just looking at it from the bang for your buck side.

[grocerygetter]

.

[gnturboray]

My first mod was a Maggie with Edelbrock shortys through stock cats and an SLP 2.75" Hushmouth exhaust and a Roto-Fab CAI. I was putting down 529 rwhp - 478 rwtq on 5.5 lbs boost. I then went with a cam setup, 2.75 pulley (3.5lbs more boost), bigger injectors and fuel pump and upgraded exhaust and gained over 100 rwhp and rwtq.

I didn't want to go over 10lbs boost and by adding the LT's it kept my boost level below 10 and made nice power.

[grocerygetter]

Ok...but you could pulley it and get the same gain with the headers you had before in tact.

[gnturboray]

Originally Posted by grocerygetter

Ok...but you could pulley it and get the same gain with the headers you had before in tact.

I was told that if I were to have used the shorty exhaust setup I would've gone over the 10lb mark and struggled to put down 605whp

[gnturboray]

Lt's allow the motor to work more efficiently, that being said one can obtain the desired hp by other means but its usually means higher boost which can stress the motor, bigger cam which affects the drivability, etc....your exhaust is only as good as the smallest pipe.