I Post Entirely Way Too Much
Join Date: Sep 2009
iTrader: 27 reviews
What causes belt squeal on startup?
Im sure some of you know, I always have belt issues. I recently put on a Dayco Poly rib 108" belt and a Dayco No slack tensioner. Seems to be working great. Hitting about 10-11psi in the cool weather.
Today I started it up (cold startup) and the belt squealed alittle on startup... Anyone know why? What causes it? Idler pulleys? Other pulleys (alt/water pump/AC?) Im going to check to see if any oil from the blower dripped on the belt. But it seemed to work fine after that, I couldnt really watch the boost gauge and road, but it looked like it was at 9psi before the shiftlight came on.
I just want to get any problems solved. I was going to buy a 3.12 pulley and 4 core intercooler so the blower wouldnt have to spin so fast to make 10psi and reduce the chance of belt slip, but my tuner wants $200 for a re-tune. Which seems like way to much for me. So I can't right now. Ill just save it for the winter.
Also, where can I buy replacement Vortech idlers? The 2 smoothe ones? Can I just buy 2 Ford idlers for a GT? I believe their the same size? I figure I might as well change those just to be safe. I have 18k on the blower setup. And probably 17k with the 2.87 pulley which is like 52,000rpm by 6300rpm.
2009 Corvette Z06
13 Mustang GT Bolt Ons - 11.58 @ 122.13
03 Mustang GT Vortech - 11.98 @ 118.68