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Discussion Starter · #1 ·
what do you think of this new exhaust product? is it for real or just marketing? i would like to think it works, but sounds like every other performance muffler talk.

Ben Y.

http://www.aero-turbine.com/
 

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There's a more detailed explanation of the muffler action elsewhere on the site. Those guys definitely don't get A's for clarity of site design....

The principle behind it is pretty sound: exhaust gases swirled into a vortex have more velocity (than non-swirling air), and can help reduce backpressure by exiting the exhaust system faster. It's basicially the same reason that Honda and other manufacturers are beginning to cast swirl-inducing fins into intake manifolds.

I'm curious to see if there's actually a difference, above and beyond what the manufacturer claims. The prices for the Aero-Turbine seem pretty reasonable compared to Saab Sport stuff.
 

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mike saunders said:
There's a more detailed explanation of the muffler action elsewhere on the site. Those guys definitely don't get A's for clarity of site design....

The principle behind it is pretty sound: exhaust gases swirled into a vortex have more velocity (than non-swirling air), and can help reduce backpressure by exiting the exhaust system faster. It's basicially the same reason that Honda and other manufacturers are beginning to cast swirl-inducing fins into intake manifolds.

I'm curious to see if there's actually a difference, above and beyond what the manufacturer claims. The prices for the Aero-Turbine seem pretty reasonable compared to Saab Sport stuff.
swirling in a vortex? hmmm.... isn't that what happens when air goes thru the turbo?

I've never seen this shit on a proper race car. Learn from those who are successful and ignore the rest. stop the madness and find a muffer shop that will bend a proper 3" turboback system.
 

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Uh oh...looks like somebody needs decaf! :)

Slaab, you never see these on a "proper" race car because most race cars have no cat and have minimal mufflers, if any. They don't need to reduce backpressure any further because they don't have much at all, because they have designed their exhaust systems to have as little flow restriction as possible. That's the point of tuned headers, straight pipes, race cats, etc.

swirling in a vortex? hmmm.... isn't that what happens when air goes thru the turbo?
I'll give you a free pass on that comment because I KNOW you understand that all the benefical action of the turbocharger happens before combustion and that all the backpressure in the system happens after combustion. We're talking about the after-effects of combustion....

So....reducing back pressure: If you're running a turbo street car, you can get headers, but they're incredibly expensive to custom make for a turbo. This is usually the area of extreme engine rebuilders, guys like Kevin Yankton who have the resources to tweak a NG900 to 450hp....You can also get a straight pipe/cat bypass that will work, but it's a royal PITA, and an automatic ticket if you get caught on the road...

If you're a regular Joe Schmo, you want an exhaust system that reduces backpressure as possible. A 3-inch system from turbo to tail is definitely the first step to do that. So...say there's a product that claims to help reduce backpressure further in your 3-inch system (the 3030 model is 3'' in/3'' out), has sound scientific principles to back it up (at least in theory!), and is available in stainless steel for a price equivalent or cheaper than the Saab stock ($160 or so). I'd say it's worth looking at.

No one has said it's going to give you immediate 12-second quarters; it's just a definite and viable option to the Saab or JT options based on the materials and possible benefit.
 

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Discussion Starter · #8 ·
slaaby,

you have it on your saab. do you have a sound clip of it? it would be nice to here what it is like at idle and a pass by or something. might be a bit much to ask for. just a thought

thanks,

ben y.
 
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