i saw this on ebay...i was bored and curious how much an srt-4 catback system would cost and i saw this
http://cgi.ebay.com/ebaymotors/Mopar...spagenameZWDVW

Do u really expect to get this much horspower out of an exhasut and downpipe?

 

Turbocharged cars respond very well to exhaust mods

 

ya but 35 HP???

 

probably with a full exhaust. header back.

 

I'd say getting 3" turbo-back on my talon I got a huge gain...but just from cat-back I wouldn't think you'd see a whole 35hp...maybe at the flywheel....

 

ya turbo backs usually give substantial gains

 

I had an '88 Nissan Cima Cedric with a VG30DET when I was living in Australia, and I saw a 32hp gain from a turbo-back system and a boost increase from 9 to 12psi...

 

that kit is a full turbo back... now i want a turbocharged car lol.

 

turbocharge yours

 

turbo back exhausts can see huge HP gains for turbo cars. i wouldnt be surprised if it was in the ballpark of what they say.

 

I've read the same thing in regards to superchargers and I always would laugh. Supercharged cars see greater gains with and exhaust change than a NA car ever will. Now its gone full circle and I bet money that turbo guys are now saying the same thing in regard against SC cars and NA cars.

But the truth of the matter is simple.
You gain a percentage over stock.
The worse the stock system was, the greater percentage you will gain.
The percentage gained does not change whether is NA, SCed or Turboed.

Example:
2 cars with the same engine, one forced inducted the other NA.
Both had stock systems sized for the particular application, which we know there is a difference.
The NA car makes 200 ponies and the forced inducted one makes 300 ponies.
Since both were made by the same builder, sized accordingly each may see a 10% gain from the exhaust change. NA has now gained 20 ponies and the forced inducted one 30 ponies making 220 and 330 now.

You will not get the NA to only see 5% gains, while the force inducted sees a 15% gain.

If it was the other way around with the NA car built in such a way that it makes more ponies stock than the force inducted one does, the NA car would yield the bigger gains and the turbo one lower. So then you can say the NA one responded better.

So anybody that says BECAUSE ITS FORCE INDUCTED IT RESPONDS BETTER etc etc etc etc etc, well thats not true. The percentage of increase remains the same, always did and always will, but having higher ponies to begin with makes it gain more.

 

a full turbo back exhaust will gain a lot of power.... turbo cars don't need backpressure... plus the SRT-4 dosen't run a muffler... so straight-pipe it from the turbo all the way out... and gain a heck of a lot.

 

kool...i was just curious if it was true...dats lot of horsies for 400 dollars..

 

i agree!

 

i will... whenever tuning is available for the 2.2, if that ever happens...
or a save up for the hahn. but idk

 

How did your exhaust increase your boost?

 

eh...no actually....
what your saying is true of NA and SC cars, but on TC cars it really will make a greater difference. TC exhaust systems dont work the same...which is why the only time you want a 200hp car to run a 3" exhaust is if its TCed. i do understand what your saying though, and your correct when you apply that to NA and SC cars.

 

My neon gained about 40hp with the maxxhab turboback exhaust. Nice.

 

if he was running an internal wastegate, the less back pressure and quicker spooling the wastegate wouldnt have time to open up... its basically a "boost spike" on internal wastegates, atleast thats all i can see what he meant by this unless he upped the boost. that is why ppl run external wastegates. they hold boost lvls to exactly where you want them and dont allow for spike like internal do... they are just better for performance engines

 

It didn't, my two-stage boost controller did. Though I see how the sentence was misleading. I was saying that a boost increase and a turbo-back gave me that increase in power.