I'm sure more wear and tear will come from higher RPM and greater boost times so that would probable dictate the exact mileage. On average though given a street driven, handfull out of times a year track driven procharger, how long will the head unit last given proper maintenance and oil changes?

 

66,000 on P1SC with infrequent oil changes and three belts. Zero problem with head unit. About 10K ago, the original "Flexi-tube" orange intake hose collapsed and died. I repl'd it with the solid intake from ATI. No probs.

 

Well thats good to hear. I know some people have had issues early on, but I consider them to be more of the unlucky ones as I believe most of these units will last a while, I just didn't know "how" long.

Anyone else? I'm sure once Pnyhnter peeks in here, he would have the best opinion since he works for ATI.

 

I also have a D-1-SC and that was one of my ?'s to ATI tech. He told me that they don't have a set miles on there units but if he was to give me one that he would say 100,000 miles before being serviced other than oil changes.
In that case, I think my engine will need attention before the supercharger. Ha Ha

 

I was thinking the exact same thing as I was reading it! For me, it is going to be more like "I will be getting bored and upgrading before it fails!"

 

I would think they would last a long time (50+ thousand miles) assuming everyone is running air filters. There really is not that many moving parts and the bearings they use are pretty high quality.

 

Call911, If you don't mind me asking what size pully are you running on your D-1-SC and how much boost are you running? Thanks

 

My blower pulley is a 3.40 pulley, and the crank pulley is a 7.65 pulley (the biggest boost making pulley combo you can get basically). On a cool non-humid day I can see over 15#'s of boost (15.3#'s to be exact at 7,000).

This doesn't mean given a D1SC and a 3.4 pulley and 7.65 crank pulley everyone will see 15#'s of boost. Keep in mind that I am only running AFR 180 heads (small) and a very large non-boost friendly cam, and a stock but ported intake. These 3 items alone can potentially create or restrict more boost.

With that pulley setup, after about 6500 RPM's it is considered to be "over-spinning" the blower. Mostly thats what I shift at except in 4th gear at the track, then I bring it to about 6800 RPM.

 

Thanks. The reason I asked is I have a 355ci Vette with a 3.60 pulley and am only making at the most 5lb's of boost at 6200RPM's. That was on a 40 degree day. I am hopeing to get 9lb's.
I am running stock ported heads and intake, 58mm throttle body and 3" dual exhaust with headers.

 

I had a customer call me a while back that had a ProCharger on a 01 GT Mustang. He bought the unit new, and installed it when the car had about 40,000 miles on it. Now the car has over 205,000 miles on it and the blower has had nothing ever done to it except for the occasional oil change.

I'd say they can last past the life of most cars. Keep in mind though, this may not be the case for every headunit ever sold. Just like things happen to brand new cars, the same can be true for anything you buy, including the highest of quality aftermarket parts.

 

Keep in mind that you are comparing a Corvette to an F-body. Unfortunately the LT1 Corvette has fairly flow-restrictive (because of the EXTREME tight confines under the hood) intercooler, so anything above the 7-8 psi with a P1SC on a stock engine will be harder to achieve.

You are also limited by the 6 rib drive system, so you could be slipping the belt. F-bodies generally don't have this problem (expecially at your level), because the blower uses it's own 8- or 12-rib dedicated drive belt.

 

Ya, I think I need a smaller pulley. If I figured it right your spinning your blower at 57,000 RPM and I'm curently spinning mine at 49,000 RPM.
With a 7.00 crank pulley and a 4.20 blower pulley I'll be about 55,500 blower RPM at 6200 engine RPM. I think that will get me close.