on my SP 12A everytime i WOT on the car it makes a weird screeching noise. does anybody knoe what it is. the same thing on my GSL-SE, even though i can't drive the GSL-SE. please read my other thread "need help w/ GSL-SE". this started happening about 2 months ago. it only happens at WOT. normal driving is fine. if anybody knows what the problem is please tell me. thanks

 

belt slippage?

 

That would also be my guess. Tighten up your accessory belts. At the longest distance the belt travels between pulleys you shouldn't have more then 1" of total slack, .5" pulling up, and .5" pushing down.
This would also be a good time to inspect the belts for cracks.

 

i'll do that. the belt is brand spanking new. thanks. as for the GSL-SE problems, do you guys know anything about that? if not its koo.

 

I just posted on that thread.