exhaust(head to turbo) dilemma

Q&A regarding engines, turbos, and intercoolers and power upgrades

exhaust(head to turbo) dilemma

Postby edv-tek » Sun Oct 10, 2004 11:19 pm

I am talking about the exhaust from the engine head to the turbo. I am doing a doing a turbo upgrade on a ST165 and have two possiblilities. Using the stock exhaust, porting, extrude hone and ceramic coating or aftermarket exhaust e.i. Aussey, ATS, Turbonetics.
I need some feed back from the people that have systems. Extrude honing is expensive($425) but would have a stock appearance and fit. I am pricing the aftermarket around $500 and up plus shipping? I am apprehensive about the cracking headers. I don't know for the money what would be more efficient. There has got to be large gains to a exhaust improvement right out of the engine. Or am I just better to port the stock cast iron manifold and leave it like that? I run a Aussie exhaust from the dp on.
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Ed Vaughan
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Postby Gary » Sun Oct 10, 2004 11:40 pm

93 ST185
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Postby edv-tek » Mon Oct 11, 2004 2:03 am

There were no listing for an ST165


e.i. I hear this alot, even locally:

http://www.mr2oc.com/showthread.php?s=&threadid=58344
Ed Vaughan
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Postby Gary » Mon Oct 11, 2004 2:44 am

If your manifold cracks and you need just a replacement, not a 400hp alltrac, why not consider the twin-entry upgrade?
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Postby edv-tek » Mon Oct 11, 2004 4:02 am

If your manifold cracks and you need just a replacement


I don't have a cracked manifold.

why not consider the twin-entry upgrade?


What would that do for me?
Ed Vaughan
White Supercharged Previa LE Alltrac w/beige leather 208K and counting
1988 Mercedes Benz 560SL 42K
Maryland
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