Anyone using this exhaust?

[Paul Thomas]

It's called a Stinger exhaust by Weltmeister. It is stainless and rediculously priced at $989 in a catalog parts seller we all know. I have never seen it in Pelican's catalog although i'm sure he could get it. It has a nifty mounting bracket but otherwise could be duplicated much cheaper in stainless and much, much cheaper in mild steel.

I am wondering how it flows and if having the exhaust merge at the end serves the same purpose as having a crossover. I thought i remembered seeing someones car here with one like it.

Paul

[Steve@Rennsport]

Hi Paul:

I saw no crossover in their design and without it, it certainly won't perform like a system that does.

Its really too bad since it appears that they could have incorporated that feature in this product for the known benefits.

That said, placement is critical and it would not be easy to package a crossover with those pipes routed like they are.

[HarryD]

For those of us who are not as exhaust savvy, what is a "crossover" and what does it do?

Thanks!

[911pcars]

I grabbed this off of Rennsport's website awhile back. Don't know if Steve still makes them available, but you can see the crossover pipe that connects the two banks. Very nice. Shouldn't be too difficult to add to any header system. The trick would be in selecting the correct crossover tube size and length. Maybe some systems have smaller internal orifices as well. How much would your system be in stainless?

Crossover tubes increase low end torque and reduce exhaust decibels.

Sherwood

[Paul Thomas]

Thats a good looking system, more complex than the Weltmeister deal. It looks like it incorporates a pair of these.

[AES]

What is the advantage of a crossover?

[Paul Thomas]

A crossover is to mix the exhaust gasses from separate banks of cylinders before they get to the mufflers or exit the tail pipes.

Steve can certainly tell both of us how that balances the exhaust pulse and affects your torque curve because i dont know. You can buy nice crossovers like this for front engine cars that dont have the space constaints that we do.

[KTL]

I think Chad Plavan (CPlavan) has a stinger. His 2.5 sounds really mean with it.

[Paul Thomas]

Originally posted by KTL
I think Chad Plavan (CPlavan) has a stinger. His 2.5 sounds really mean with it.

Thats what i thought, but looking at his recent garage pics, it seems like he has magaphones. Maybe that was his Dads car with the stinger system, dont they race together?

Paul

[gumba]

With more & more race tracks imposing db restrictions I doubt you could use the stinger at the top very often.

[Wavey]

Here's another configuration:

[mb911]

Originally posted by Steve@Rennsport
Hi Paul:

I saw no crossover in their design and without it, it certainly won't perform like a system that does.

Its really too bad since it appears that they could have incorporated that feature in this product for the known benefits.

That said, placement is critical and it would not be easy to package a crossover with those pipes routed like they are.

I think the cross over is in the 2 tail pipes in the back. they are scaloped out..

[randywebb]

when you see the word crossover think of the Brit. term "balance tube" - it links the resonance between the two banks of cylinders to produce better power (aka torque if low) IFF it is done correctly

[SP2]

With respect to the crossover, SSI's don't have a crossover. They go into a dual in single out or dual in dual out muffler. Does the muffler act as a crossover prior to gas exit?

[AES]

Steve can certainly tell both of us how that balances the exhaust pulse and affects your torque curve because i dont know

That would be good

it links the resonance between the two banks of cylinders to produce better power (aka torque if low)

can you be more specific? Why doesn't the factory do that?

[sithot]

Originally posted by Steve@Rennsport
Hi Paul:

I saw no crossover in their design and without it, it certainly won't perform like a system that does.

Its really too bad since it appears that they could have incorporated that feature in this product for the known benefits.

That said, placement is critical and it would not be easy to package a crossover with those pipes routed like they are.

Well, it does appear to have a "blended" tip.

Best,

Tom

[rfn026]

Dr. Gas invented the crossover. It wasn't until Bobby Labonte went upside down that people realized what was going in with his exhaust. The following Monday morning people were studying pictures and calling Dr. Gas. The following link explains the theory. It's a lot more complicated than just putting a pipe into the system.

http://www.drgas.com/articles/art_syncronicity.php

Richard Newton

[sithot]

Calling "Dr. Gas" ?

[Joeaksa]

Wonder how loud this puppy is? Bet its not "neighbour friendly" so to speak.

[911pcars]

Not speaking with any authority, but the crossover might be more effective further upstream near the collectors than downstream near the exit.

Sherwood