ASP Pulley...whats that?
02-22-2004 | 10:16 PM
#6
unless you like spending money to replace parts 
You won't notice any difference in the way the car steers as the pump pushes WAYYYYY more fluid than is needed (thus why it overheats). By slowing it down, it makes it more efficient (more HP) and run cooler (will last longer).
By slowing down the water pump, I found that my car actually ran cooler. Not due to the water moving slower, but because there was less drag on the engine at a given RPM and thus required less fuel to run which resulted in less heat being made.
By slowing down the AC compressor, I did loose a little performance of the AC when its hot out (remember...I'm in AZ so... ) but overall its nothing big. I did however gain a big boost in HP there also because its much easier for the engine to turn the compressor now (more HP).
Finally, I did go with the overdrive pulley on the alternator. Slowing the alternator down "can" cause charging problems but usually only a problem on automatic cars (and often not even then). I have a manual car but just wanted to MAKE SURE that I never had any problems.
Go with the ASP underdrive crank, the overdrive alternator pulley, and an ARP crank bolt (you can't reuse the stock one and the ASP is MUCH better). Its a proven setup.
You won't notice any difference in the way the car steers as the pump pushes WAYYYYY more fluid than is needed (thus why it overheats). By slowing it down, it makes it more efficient (more HP) and run cooler (will last longer).
By slowing down the water pump, I found that my car actually ran cooler. Not due to the water moving slower, but because there was less drag on the engine at a given RPM and thus required less fuel to run which resulted in less heat being made.
By slowing down the AC compressor, I did loose a little performance of the AC when its hot out (remember...I'm in AZ so...
) but overall its nothing big. I did however gain a big boost in HP there also because its much easier for the engine to turn the compressor now (more HP).Finally, I did go with the overdrive pulley on the alternator. Slowing the alternator down "can" cause charging problems but usually only a problem on automatic cars (and often not even then). I have a manual car but just wanted to MAKE SURE that I never had any problems.
Go with the ASP underdrive crank, the overdrive alternator pulley, and an ARP crank bolt (you can't reuse the stock one and the ASP is MUCH better). Its a proven setup.