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Has anyone ever tried open atmosphere venting the wastegate on an internal wategate turbo, say a 16G? I was thinking of just having a flange made to bolt up to the turbo, Make it accept the O2 sensor, and having the wastegate port out of the fender to increase efficiency, limit boost creep, and scare V8 drivers, as if a turboed 4G63 in a colt isnt scary enough! What are everyones thoughts?

I've done this on my T25. Works awesome!

im not seeing it that clearly... anyone have a diagram or a pic i can see? sounds like a reasonable idea though.

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3" Mandrel Exhaust w/highflow cat w/Magnaflow. Apex'i AVC-R. TurboXs RFL BOV. Starion FMIC. Big 16g. 2g Manifold, O2 Housing, & TB eblow. Walbro 255. Homemade Poly motor mounts. MSD DIS4 Ignition. ACT 2600lb pressure plate w/street disc. K&N on custom cold air setup.

Hey jmauld, how did you go about getting it done? Did you by a flange palne or have one custome made? How abou the pipeing? And how much did it run of rya? Any and all details would be helpfull, thanks

A friend of mine built it. He used flanges and a 2.5" Stainless Steel donut pipe that he got from RRE. I think it was about $30-40 in parts.

I have some pictures somewhere. When I find them, I will put them on here.

My roomate has done this exact thing on his AWD Talon...sounds hella mean when he hits max boost . Scare the heck out of you if you are not ready for it....

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Early 2000's: 1992 Summit sedan - 14.1 @ 100.9mph w/ 155/80 13s
2012: 1989 Dodge Colt GT Turbo - 14.9 @ 100mph, 10psi/s16G

Sounds interesting, we def needs some pics, I had my bov vented to the atmosphere this past summer, was loud when boost was reached, but at idle she ran like a bag of shit.

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1997 Eagle Talon TSi - 11.3 @ 126MPH
1989 Colt Turbo - 198WHP 202 Torque - RIP
1991 Colt Turbo Conversion Targa Rally Car - Work in Progress

All you need to do is cut the wastegate dump at the return and weld a patch over the retun hole. You would cut the area out that's marked in red.


For thos of you interested Fatbastard has one modified that's most likely for sale.

On a stock O2 housting?! So then it would be dumping right onto the radiator?! I dount like the sould of that. Is their any way to run a pipe wiht this Idea? I got one.. Can anyone think of a shop in their area that could mass produce this? This would be a ig money maker, seeing as it will work for most of the mistu turbo lineup.

Sure, you just weld an outlet pipe onto the housing. You can have it vent anywhere you want it to, I'm going to have mine blasting pavement .

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Early 2000's: 1992 Summit sedan - 14.1 @ 100.9mph w/ 155/80 13s
2012: 1989 Dodge Colt GT Turbo - 14.9 @ 100mph, 10psi/s16G

here's a copy of a pretty one.....




You can do it to a stock o2....

I have one if you're interested..... Give me 90.00 bucks and it's yours.


Geoff

Check out this link for complete instructions on how to build one.

http://www.geocities.com/spencerhut/talon/down_pipe.htm

http://www.forcedperformance.net/images ... ped_o2.jpg

Here is a stoch one with the dump mod. Looks like fun