Another quiet exhaust project (BluEVOIX and beyond)

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Aug 14, 2011, 12:49 PM

#121

EVO8LTW

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Quote:

Originally Posted by not2slo128

EVO8LTW - love your setup. You're running 30psi? on pump? knock-free? Nice! That's gotta be ~500whp... At what RPM do you see full boost?

That was when I was running a black, but now I'm running a BBK at 27 psi. The Black set-up did over 500 whp on VD on 93 and hit 20 psi around 4100 rpm in 3rd on a 2.0. I can't remember when it hit 30 psi, but it was just a few hundred rpm more. It was knock free with the cutout open. I just decided to get a smaller setup for autocross, though I haven't done as many events as I had hoped this summer.

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Aug 18, 2011, 05:09 PM

#122

hotrodhendrix

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I have been searching the internet to find a fix for this same issue on my alltrac. Thanks for the post.

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Sep 25, 2011, 01:15 AM

#123

reid-o

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I posted this to NASIOC before and just got a bunch of critique:

It works well

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Oct 11, 2011, 10:16 AM

#124

10isace

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Quote:

Originally Posted by Pegasus

I'm running a boost actuated cutout as well. Except I set mine up at the test pipe. I'm running this cutout with the stock catback. This has been by far the best thing I could have done to this car! I love how quiet it is.

Sound Performance makes this valve. It starts to open at 5 psi and is fully open by 11 psi.

Here are some pics:

I see that it's a Y at the test pipe, but is it slip fitted or welded onto the test pipe?

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Oct 11, 2011, 11:17 PM

#125

evilempire76

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Quote:

Originally Posted by 10isace

I see that it's a Y at the test pipe, but is it slip fitted or welded onto the test pipe?

Well I cut my test pipe down and slipped fitted the ends into the y-pipe and used the clamps that came with the y-pipe at first. I later removed the entire setup and had it all welded together, so no more clamps. I'm still running this setup and I still think it one of the best mods I have ever done.

Here is a link to the y pipe I used. The flange wasn't exactly the same as what the cut is, so my local exhaust shop removed and replaced it with the correct one:

http://cgi.ebay.com/ebaymotors/Magna...#ht_4439wt_940