* NEW * English Racing Boost Activated Test Pipe Dump * NEW *
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Joined: Apr 2008
Posts: 241
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From: Portland, OR
* NEW * English Racing Boost Activated Test Pipe Dump * NEW *
We came up w/ a new Test Pipe Design for you Evo 8/9's (X is almost ready too)
This Test Pipe includes a 60mm waste gate. They are an off brand WG that we pre-test and modify to work in this application.
We set them to start opening at 7psi and full open by 15psi. We can make the springs at desired options, but the above setting we find, works good. Stock exhaust cars will make it open sooner over aftermarket exhaust cars due to back pressure differences. 1-2 psi difference usually
It will bolt on to your stock down pipe and exhaust. Just hook up a vacuum line to it and you're good to go! With this setup you can have a quiet stock exhaust, but still be able to make power when needed. It's perfect for you guys in California w/ exhaust restrictions.
$350 SHIPPED
http://www.shopenglishracing.com/Eng...Pipe-Dump.html
We are currently prepping some for the EvoX guys - same price, just don't have any ready to go currently.
Here's a Video of the pipe at work!
This was installed on an Evolution 8 with a STOCK exhaust pushing just above 400whp
This Test Pipe includes a 60mm waste gate. They are an off brand WG that we pre-test and modify to work in this application.
We set them to start opening at 7psi and full open by 15psi. We can make the springs at desired options, but the above setting we find, works good. Stock exhaust cars will make it open sooner over aftermarket exhaust cars due to back pressure differences. 1-2 psi difference usually
It will bolt on to your stock down pipe and exhaust. Just hook up a vacuum line to it and you're good to go! With this setup you can have a quiet stock exhaust, but still be able to make power when needed. It's perfect for you guys in California w/ exhaust restrictions.
$350 SHIPPED
http://www.shopenglishracing.com/Eng...Pipe-Dump.html
We are currently prepping some for the EvoX guys - same price, just don't have any ready to go currently.
Here's a Video of the pipe at work!
This was installed on an Evolution 8 with a STOCK exhaust pushing just above 400whp
Thread Starter
Former Sponsor
Joined: Apr 2008
Posts: 241
Likes: 0
From: Portland, OR
Fresh batch made - ready for shipment!
TO CLEAR SOME THINGS UP:
There's been a lot of questions, concerns, speculations, etc. So this is just to give a more clear description.
The o2 dump is only used for the wastegate gases. This test pipe dumps ALL the exhaust gases out and bypasses the muffler. It lets you run a very quiet/restrictive exhaust for the states that are very strict on modifications and/or make you run restrictors, but with this setup... it allows maximum power available once it opens.
For comparison, this setup is much like an electric cutout except its boost activated. This has nothing to do with your wastegate function. I repeat, THIS HAS NOTHING TO DO WITH YOUR o2 WASTEGATE FUNCTION.
TO CLEAR SOME THINGS UP:
There's been a lot of questions, concerns, speculations, etc. So this is just to give a more clear description.
The o2 dump is only used for the wastegate gases. This test pipe dumps ALL the exhaust gases out and bypasses the muffler. It lets you run a very quiet/restrictive exhaust for the states that are very strict on modifications and/or make you run restrictors, but with this setup... it allows maximum power available once it opens.
For comparison, this setup is much like an electric cutout except its boost activated. This has nothing to do with your wastegate function. I repeat, THIS HAS NOTHING TO DO WITH YOUR o2 WASTEGATE FUNCTION.
Last edited by Az_636; Jan 6, 2014 at 10:09 AM.
I have one of these on my car. Located in the San Diego area if you're curious and want to check it out. The design of this dump is perfect for daily driving. It makes the Evo extremely comfortable for distance driving but makes all the power a full exhaust can offer. English FTW!
Thread Starter
Former Sponsor
Joined: Apr 2008
Posts: 241
Likes: 0
From: Portland, OR
I have one of these on my car. Located in the San Diego area if you're curious and want to check it out. The design of this dump is perfect for daily driving. It makes the Evo extremely comfortable for distance driving but makes all the power a full exhaust can offer. English FTW!
Thanks!
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Gain VS what would be the question I guess. We have seen over 30hp on 700hp car that already have 3in exhaust. I guess it could be worth 30-50hp on a 400hp evo on stock Exhaust but who does even 300+hp on stock Exhaust. I would say this with stock Exhaust would make you have the same performance as 3in cat back and it would make 3in exhuaust act like 3.5in+
I hope that makes since.
I hope that makes since.
Gain VS what would be the question I guess. We have seen over 30hp on 700hp car that already have 3in exhaust. I guess it could be worth 30-50hp on a 400hp evo on stock Exhaust but who does even 300+hp on stock Exhaust. I would say this with stock Exhaust would make you have the same performance as 3in cat back and it would make 3in exhuaust act like 3.5in+
I hope that makes since.
I hope that makes since.
Speaking of tuning for this, since it's a wastegate and actuates some what slow, would it throw anything off (in a drag racing type situation) between shifts when the wg closes then has to reopen
I don't think it actuates slow at all. Especially with NLTS every gear I grab it almost immediately opens.
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