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I have BEEN THERE DONE THAT before doing software as the results were on the dyno and the air box was off and you could SEE the BYPASS valve opening(BLEEDING BOOST)
JUST MY 02
KWIK,YOU can Install a pulley if you want to BUT the OEM software WILL BLEED OFF ANY XTRA BOOST other than stock!!
I have BEEN THERE DONE THAT before doing software as the results were on the dyno and the air box was off and you could SEE the BYPASS valve opening(BLEEDING BOOST)
JUST MY 02
What were your MB fuel management and ignition controls set to before you chiped your car?
Randy

BTW what SIZE is the Aftermarkit pulley in MM? that RENNTECH
is USING?
THE fuel map WAS FIRST stock then PERFORMANCE!!
Last edited by MARK CUMMINS; Jan 24, 2002 at 12:48 AM.
maybe we all need a lesson on what a "Chip" is/does. From my understanding, all a chip does is change values in a table for things like air/fuel ratio. The "Chip" doesn't actually change the adaptive algorithm that the OEM software uses. So, I would think even if the coupe is "Chipped", the OEM software would still adapt to your driving pattern thereby changing the "Chip" settings.
Am I even close?
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I agree with MARK on the pulley.. The pulley it self is not going to do anything without an after market Chip to mix proper air and gas combo. The stock OEM is going to adjust it self so you can get the proper mix and is not going to give you major HP if any. So right now the only thing i would do is K&N air filter and maybe a 75HP shot of nitrous.
Randy
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Can Renntech provide a dyno plot for the pulley?
I have yet to see Upsolute dyno plot from Vadim/Mark without dyno proof its hard for people to invest in the mod that worth to void the warranty

