again, as temp drops, density increases....

 

see i love being right lol..... im glad you think u would go that route... and hell all to you.. but i think ill keep my stock manifolds... and enjoy my intercooler and larger turbo i got for the same price as some nice headers+ install

 

Well of course less restriction in the ducting and filter will produce more power. I was referring to STS and rear mount setups only.

 

Gotcha - the intake thing was an analogy though, my point is that the same principle applies to exhaust, regardless of turbo position.
Anyway, wrapping the headers/exhaust can combat the heat loss. Whether or not you can keep enough heat to make the backpressure drop worthwhile, I don't know.

 

From what I understand and from what ive heard from a shop that builds fbodies in town (my motor being professionally built there now) They say that heat wrapping certainly helps, but the stock manifolds do a great job of retaining heat.

 

Coat the headers and heat wrap them. Anyway, it doesn't matter. Rear-mounts are a poor idea when compared to front mounts or superchargers anyway.

It was a concept designed to aid ease of installation and eliminate underhood space problems for the regular joe with little thought put into actual engineering design problems like heat loss, air density loss, increased spool times, etc.

No need to elaborate anymore on a dead issue.

 

I wouldn't call it a dead issue when there are many in use out there with people interested in solving such problems. Not to mention this thread is, in fact, a query about the STS system...

 

i think someone just thinks to highly of him self and his ideals....

honestly this is about everyone else, not what you think.... so get over the dead issue... cause its not.... there are ALOT of ppl who will use and like the STS system, and there is ALOT of reasons its good to do.... front mount will only reduce spool time and may increase the "snap" factor with the turbo being there.... and honestsly the under hood temps are a KILLER with front mount turbo's..... so unless you can send it out and get it ceramic coated or heat coated for EVERYTHING thats a hot part... then wrap it ect.... the rear mount set up an amazing idea

 

This is the most retarded thing I've heard anyone say in months. You need to go back to turbo school.

-Chris

 

ok and since you know more then I, pls tell me why you feel thats the more retarded thing you have heard..... since i am not the only one who believes this, so do about 20 custom turbo makers that i know, and so does the whole entire supra forum ect.... so fill me in master.....

 

No, custom turbo makers do not believe this. Don't pretend to be the media spokesperson for turbo builders. All the good turbo kits for any car use headers. In general headers don't make as much power on a turbo car as they do on a naturally aspirated car, but that doesn't mean you lose power with them. If more restriction in front of the turbo is good, as you claim, then why not just use half-inch primaries and one inch up-pipes? Or better yet, why not just make the most power, as your theory suggests, and just cap off the exhaust in front of the turbo completely? That HAS to make the most power.

For many stock turbo cars, like Buicks, SyTys, and Supras, the money put into a header system, on a dollar-per-horsepower ratio, is better spent elsewhere, but that doesn't mean that headers make LESS power than a cast manifold. Any time you can increase exhaust efficiency on a four-stroke engine you are creating gains. This is basic engine tech.

-Chris

 

im not saying you will make LESS, im saying its not worth doing, cause the increase IF any is wasted money....

 

What exactly is a "snap" factor? And explain this KILLER underhood temps theory for me. My turbo is under the hood and has never caused a problem. Neither have the millions of turbochargers under the hoods of millions of production cars since the first production turbo car, the Corvair, was built.

None of the piping on my car is coated. It's 304 stainless. This is also how the PTK kit comes by defualt. I don't know of any production turbo cars that came with coated piping from the factory, either. Again, no problems on those millions of cars. If this whole "running cooler" theory is the STS nuthuggers' reason for thinking this thing is a great idea, then why don't they design a kit to sit on the roof of the car? It will run even cooler up there.

One more thing. If the rear mount is such an amazing idea then why don't the high horsepower cars use them? Pro cars don't have a restriction on where the turbo is mounted, yet they all put them up front. You want to know why they don't put them in the back? Because it makes less power and it's less efficient. Talk to pro series driver some time about putting the turbo in the back. They'll laugh you off the racetrack.

-Chris

 

Mild steel is the default base material....

 

And....?