It takes the same time to start when hot as when cold - not very quickly - maybe 3 revolutions to fire. I noticed there is a 2 msec prime pulse set for starting (I think - need to check closer) and I remember you said it's best to defeat that function. As it begins to fire, it sounds like it's backfiring through the blower, but I can't really tell - tried leaner and richer with no change - maybe the prime pulse is the cause.

Sometimes, the idle speed is high on hot starts, but that may be an IAC control issue.

I don't think I have any issues with the IAT sensor. I counter-bored the side of the discharge plenum to get a socket on the sensor, plus the probe is set well into the airstream. Also, I'm using the fast reading open element sensor - not the solid probe style.

Interestingly, I haven't seen really hot discharge temperatures..... nothing noted over 175*F yet - even with sustained boost. <img src="/forums/images/graemlins/kewl.gif" alt="" />

Fuel economy continues to improve, with the change to 29" tires adding maybe 1 mpg on today's trip to Atlanta - even at 75-80 mph. I'll try to check it at 65mph on the way home this weekend.

Frank