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Devek Level 2 Headers Installed! (Video added)

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Old Jan 17, 2011 | 06:34 PM
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Originally Posted by Jim M.
AO, I hope you hit the elusive 500HP number but what are your thoughts about loosing power on a supercharged car when adding headers?
https://rennlist.com/forums/928-foru...c-less-hp.html
Jim- As I recently resurected that thread, I am fully aware of the issue. I think the concensus is that power may remain the same, but boost levels will drop. Effectively, your hp/pound of boost will go up. So where I am running 9.5 psi now, it may drop to 8 (just a guess).

THis will allow me to put a smaller pulley on to regain the boost level and thus increase total horsepower.

Again this is all speculation. Will find out later in the spring when I get back tot he dyno.

Originally Posted by dprantl
I think this will be the perfect opportunity to put the above argument to rest.

Dan
'91 928GT S/C 475hp/460lb.ft
Yep... but unfortuantely I didn't record backpressure before I put the headers on. But I am planning on going back to the same dyno later in the spring.

Originally Posted by deutschmick
Nice job!

Do you plan to ever modify the anti-sway bar mounts? I have DR bars too and don't want to do it unless necessary. TIA
No plans. The mounts look fine. I don't baby the car either. It's good the go!
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Old Mar 13, 2011 | 10:51 PM
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Picked up the car today and OMG!!!! It sounds so awesome. Almost silent while cruising, then BWWWWAAAAAAA! I'm in love again.

2.5" stainless mandrel bent with Magnaflow mufflers. The combination with the headers is just pure music!

Then I get it home and notice my oil cooler is leaking! I'm pretty sure I used the wrong sized o-rings...

Pics. Crappy video coming later.





Last edited by AO; Mar 13, 2011 at 11:24 PM.
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Old Mar 13, 2011 | 10:57 PM
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Is the rear muffler a dual straight through or any crossing over in that one?

Looks very nice, cannot wait to see / hear it and compare the numbers.
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Old Mar 13, 2011 | 10:58 PM
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That look really gooood!

What's with the square patch on the x-pipe?
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Old Mar 13, 2011 | 11:00 PM
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Straight through. I looked at doing some of the fancy stuff, but then thought why. Just more crap that I might not be happy with.

It's very civilized, yet lets out a nice howl when you get on it. It's perfect.
Last edited by AO; Mar 13, 2011 at 11:25 PM.
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Old Mar 13, 2011 | 11:01 PM
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NICE...now we need a video to HEAR it...plus a dyno!!!
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Old Mar 13, 2011 | 11:02 PM
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Originally Posted by Jadz928
That look really gooood!

What's with the square patch on the x-pipe?
It's his shop logo and phone number. Pretty clever if you ask me - also says alot about the pride he takes. The welds look like robotic welds. Top quality workmanship.

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Old Mar 13, 2011 | 11:06 PM
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Originally Posted by IcemanG17
NICE...now we need a video to HEAR it...plus a dyno!!!
Working on the video... (uploading).

Dyno will hopefully happen sometime later this spring. BTW, had one more (total 3) O2 bungs welded on.
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Old Mar 13, 2011 | 11:15 PM
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Andrew,

What is your max boost now?
Has it dropped from 9.5 PSI?
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Old Mar 13, 2011 | 11:21 PM
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Originally Posted by Lizard931
Andrew,

What is your max boost now?
Has it dropped from 9.5 PSI?
Too early to say for sure. I only had time to drive it back from the shop. Need to clean up a few things and wait for a nicer day to go for a drive.

My plan is to go to the dyno with the current pulley see what it does, Then install the ludicrous-speed pulley (2.125") and then go straight to plaid (2.0"). I plan on documenting fully.
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Old Mar 13, 2011 | 11:33 PM
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Originally Posted by AO
Picked up the car today and OMG!!!! It sounds so awesome. Almost silent while cruising, then BWWWWAAAAAAA! I'm in love again.

2.5" stainless mandrel bent with Magnaflow mufflers. The combination with the headers is just pure music!

Then I get it home and notice my oil cooler is leaking! I'm pretty sure I used the wrong sized o-rings...

Pics. Crappy video coming later.





Looks awesome, Andrew! Can't wait to hear it.

Maybe this guy could do a setup for me when I install the MSDS headers? Did he do the X-pipe for you, too?
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Old Mar 13, 2011 | 11:39 PM
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Originally Posted by 993MI
Looks awesome, Andrew! Can't wait to hear it.

Maybe this guy could do a setup for me when I install the MSDS headers? Did he do the X-pipe for you, too?
Oh yeah... he can do it. No problem. The X was part of the total fabrication. I only supplied him with the mufflers and the flanges to mate up with the headers.
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Old Mar 13, 2011 | 11:52 PM
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Video is up. It doesn't do it justice.



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Old Mar 14, 2011 | 12:00 AM
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Looks fantastic Andrew, well done.
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Old Mar 14, 2011 | 12:13 AM
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Very nice! The sound is awesome and the flames are pretty cool too.
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