^^ Do you have any sound clips of youexhaust. I would like to here as would many others wanting to spend that amount of money for one.

 

Here is mac_05evo's evo when it was basicly stock http://videos.streetfire.net/Player....652B&kw=4&p=13 .

 

the RMR lower subframe brace not only stiffens up the front of the car but also has a depression for aftermarket DP's. www.rmrproducts.com

 

Well, in the ideal case, you would have a separate wastegate dump tube (like you would find with an external wastegate). The next best thing is to have a dividing wall between the wastegate and turbine discharge. As far as a bellmouth inlet, he says it may be better than a stock setup, depending on what stock is. To be honest I haven't really looked at the Evo's stock turbine discharge or at any aftermarket downpipes that are currently available, so I am not sure how those fit the situation.

 

I think 3 to 3.5 inch is good. 4 inch is over kill..

 

It was taken out of context due to my speedy, and poorly worded statement... you are correct. I've not read your article, but when I misused "scavenging", it was meant to apply to the layman's ideal of exhaust gases and pipe diameter. Not in the respect of actual down stream "scavenging" as that would naturally cause a certain amount of back pressure in and of itself. I've been beating myself up trying to convince the public at large that back pressure after the turbo "...is the devil" since the early 90's. However the concept is so ingrained in the American psyche, that even the old Garrett article dispelling the back pressure myth found reticule from people you would think knew better (a while back). So I publicly apologize for the misleading statement... maybe we are coming out of the dark ages, and people are willing to accept the fact that there not only is no need what so ever for "back pressure" after the turbine, but that it is actually utterly detrimental.

 

Thank you for your response, Zeus. I appreciate your clarification.

 

are you interested in a full 3.5" tbe exhaust? PM me

 

+1

 

they make a 5inch supra exhaust! now thats overkill haha

 

i have a 3.5" for sale, PM me and I can get you pics and try and get sound clips.

 

That article is a very good read. Thanks.
It also goes with the saying "the best turbo exhaust is no exhaust"



Send me some pics i wanna see it.

 

yeah, the best turbo exhaust is none because you dont want any backpressure whatsoever, so in this case, bigger is better. yeah 3 inch maybe ok, but then you max that out, you have to add wastegates on the exhaust. to me, whats the point of doing that? why not just do it right the first time and leave it? i have a 3.5" now, yes on stock turbo, but i will be ready for my GT series turbo that my friend has at his house. [that bad boy is huge, but i cant release any info now (for all the haters) ]. thats how i look at it.

just remember you dont want any backpressure after your turbo, and some turbo guys still dont understand this concept. N/A guys are a different story, but thats none of us here!

 

More than likely you absolutely do not need a 3.5" exhaust. We build them so I am not telling you this because it is something we don't sell. I am telling you this because the 3.5" is just over kill and extra weight. We do have the lightest 3.5" exhaust available.

My car ran 9.97 at 142.32 mph with our 3" exhaust on the car. My brothers car has trapped 144+ at full weight and made 647 whp to the wheels through our 3" exhaust. Etc., etc., Point is a 3" exhaust if designed properly like ours is going to flow enough for just about any application.

We install the 3.5" systems on cars we put GT42's on as the turbine housing outlet requires something that large.

Have a good day.

 

^ listen to the man...he'd know best