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Old 21st February 2003, 01:39 PM
Gary C Gary C is offline
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Join Date: 9th February 2003
Location: IL/WI
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Thanks though every little bit is much appreciated.
I'll keep y'all updated as things progress. I decided to go with a full stainless steel 3" exhaust, with a high flow cat, from the turbo back.
Reason being, the turbo itself will be upgraded down the road, so why buy a larger exhuast when i *finally* have the ability to start outflowing a 2.5" exhaust.
It will be dyno'd as soon as the exhaust is put on, and then i'll be sure to put the chart up.
After that (and my wallet recovery time.. the turbo back, mandrel bent, full stainless system with a very nice straight through 3" inlet and 3" outlet muffler, along with the random tech. cat, redoing the flex joint, plus lots of other nifty 4g63 race derived tricks is a LOT of $$$$ ) I'll be hooking up a manual boost control to it and seeing how much/badly the ECU retards the timing up top when hooked up to an OBDII scanner. If it doesn't pull the timing too severly the boost will slowly be increased untill I have the satisfaction of knowing that the little turbo is out of it's or right on the door step of being out of the efficency range. That coupled with the AFC and Ignition setup should allow not necs. more power, but a smoother powerband, with a better fuel curve. (and the basis for more power down the road, which is how i build them, build the 'tech' end and supporting mods before you slap on a big blower and crank the boost. Melted and ovalized pistons aren't exactly what i'm looking for. )
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