Anyone ever taken or seen inside of a procharger P1, D1, or F series blower?
I know a guy on a different board who replaced the bearings inside his P1SC and on pump gas makes 787rwhp . He replaced the factory bearings (which were stamped China on the side) and were only rated at 45,000 rpms, most likely close to a ABEC 5 bearing (P1 rated at max impeller 62,000). The only info he has given me so far is that he can run his P1 at much higher speeds than ATI's rating now ( and that shows by his power) He told me to run a ABEC 9 steel bearing or if I had the money a ceremic ABEC 9.

Just wondering if anyone had any info on this?

 

A lot more to spinning compressors and gearsets than the type of bearing or it's 'rating'. Talking in generalities here - but there IS a reason a unit is rated at a particular speed. A bearing would be selected to meet load/rpm requirements at xx,xxx rpm. Now maybe the bearing is the weaklink, I really don't know.

Compressor map profile, centrifugal load on impeller/gearset, harmonics, vibrations, oiling, heat transfer all can lead to failure and all has been designed/tested/validated by guys at ATI. For a particular unit a rating is assigned based on a safety factor and lab results. Go beyond and you need to know what the designers, engineers, and technicians know - or see for yourself success stories of people going beyond spec in the field. But I really don't know these particulars of this blower or any other at this detail. Just my rant I guess

-Scott.

 

There is more to it than just the bearings. I kinda figure if a company can make something safe to turn 65k rpms, more than likely it can spin faster without breaking, but it might not be the best idea for a number of reasons- obviously it will wear out quicker, but performance might begin to suffer.

The max RPM from my talking to my dyno guy is there for a reason. Spinning blowers past their max rpms only leads to the air starting to cavitate which only gives you less power since the air gets all screwed up. I'm not by any means a scientist but I'm sure the engineers at Vortech and ATI have done their homework to try and produce some of the best product they can...

 

Got some top secret info on this subject We'll be doing some testing in the future

 

You have to see where that lands you in your compressor map. If you heat the air up too much, it'll be counterproductive.

 

Anybody ever see a compressor map for any Procharger?

 

They don't publish them, so that means there not as good as others, or there way ahead of the game. IMO there way ahead of the game

 

Just use the biggest head unit that will fit.

Bonus points if it doubles as a wood chipper.