I think mine idled around 800, should I set mine at 725? what is stock idle?
Your tuner will have to set it where he feels comfortable with the tune. I can actually tune mine a little lower but it runs best with mine at 725 RPM's.
__________________ http://www.leftcoast32.com
'07 Black TrailBlazer SS "MP122HH" MagnaCharger
'05 SSR 6 Speed 427 "MP122HH" MagnaCharger Authorized MagnaCharger Dealer/Distributor
Define "better"....... More lope? Less lope? More responsive?
Mikey
It "idles" better. After I had AZ TPI swap out the 4.56's for the 4.10's three weeks ago, I experienced a rough idle. Joe spent the better part of an hour and a half Saturday re-tuning Hellvis with all the modifications that have been done.
Right now, it idles about 850,(per the factory tach, I haven't checked it with the nav unit) and at a cold start doesn't surge.
Joe advised me to swap the OEM fuel pump out with the aftermarket Lingenfelter unit, which will raise the fuel pressure from about 39 GPM to 75-80. Ordered it today.....
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Doug
One of the "Blues Brothers"
Last edited by Doug Allen : 03-31-2008 at 10:28 PM.
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