Cascade Crew

scott in wa. · Posted: Wed Mar 07, 2007 8:01 am Post subject: Supercharger

I have been doing dome reading on Superchargers.
I would like to know what everyone thinks about these, what one is best.
This would not include the Detroit diesel type super chargers.
We are going with the Paxton, Vortech, procharger, type.

This will be going on a very built sbc short block, not the current engine in the our car.

What are the pluses and minuses, repair, rebuilding, longevity, boost capability, stuff like that, maybe ease of use.

Been looking at Prochargers

What do you think?

Thanks
Scott

Twilightoptics · Posted: Wed Mar 07, 2007 8:15 am Post subject:

Just make sure build the car to handle boost.

IE Lower compression.

And be prepared for more tuning than you've ever been prepared to do before!

The only plus is more power!

The downsides are yeah you'll wear the motor out faster, It's not forgiving if you find yourself lean, and it's kinda in the way.

I've never done a boosted motor just read and watch.

scott in wa. · Posted: Wed Mar 07, 2007 8:30 am Post subject: tunning

Ya I figured that,
We are going with the commander 950 with this next engine, so It should be a tad better.

But we are trying to get a good supercharger, one that has a good reputation; I have been reading about the vortech's, they seem to need rebuilds often.

On the other hand the prochargers look to have a pretty good following of people.

Raiden · Member Joined: 10 Mar 2004 Posts: 193 Location: tacoma

The best s/c for our cars is the ATI D1SC! I have a paxon sn 2000 and it works great, but it taks a crap load of power to turn in contrast the vortech's and ATI. ATI is by far the proven supercharger on TGO for our cars...wish I had one:(

Demon · Posted: Wed Mar 07, 2007 9:16 am Post subject:

the procharger's are excellent... your best bet right off the bat is the D-1SC ...

you'll have some parasitic loss since they're belt driven, but they're a centrifugal design not a roots design so they're more efficient, but you're going to have gobs and gobs of power throughout... so honestly you won't notice the parasitic loss at all... you'll also want an intercooler (preferably not air to air)... keep those temperatures down as best as you can.

you'll want some damn good spark, some very large injectors, and a fuel pump that won't up and die after a few hard runs

Procharger also makes an F-Body kit as far as I know... they're the best out of the three you listed, Vortech and Paxton have their limits and as you mentioned they need to be rebuilt often.... Paxton is more or less the same, though you don't find many people running them compared to the prochargers or even the vortechs

RSFreak · Posted: Wed Mar 07, 2007 6:23 pm Post subject:

Raiden · Member Joined: 10 Mar 2004 Posts: 193 Location: tacoma

sup John! I've not been around much in the past few years. Been going thorugh the career change, school, then change agian till I finally have my dream job = BIZ E! Things are finally starting to slow down..kind of.

Anywho, no, I WISH I had an ati procharger! my paxton is a great superchager..cheap and easy to rebuild! And I can run mid to hi 12's all day......but i still wish i had a procharger:(

scott in wa. · Posted: Thu Mar 08, 2007 10:02 am Post subject: procharger

I see alot of the P1SC

what are they?

Twilightoptics · Posted: Thu Mar 08, 2007 11:02 am Post subject:

Demon · Posted: Thu Mar 08, 2007 11:11 am Post subject: Re: procharger

Dewey316 · Posted: Thu Mar 08, 2007 11:30 am Post subject:

are the compressor housing diffrent, or is it just a diffrence in the compressor wheel? Depending on the drive ratio's, and compressor designs, the smaller one may be more effecient at lower boost levels. It might be worth a call to ATI, and finding out if you can get a compressor map, and drive ratio's and such, to figure out which one will get you the highest effeciency at the boost level, and rpm range you are going to be running at.

Raiden · Member Joined: 10 Mar 2004 Posts: 193 Location: tacoma

I have done a lot of research on this topic as I was going to sell my paxton and upgrade to an ATI. I chose to keep my paxton because a new supercharger was going to set me back 4g's, so I did some other things to my car to achieve the power I was after.....much less than 4G's. The P1sc does not flow as much CFM as the D1sc. The D1SC produces power faster and at lower rpms due to the increased air flow. If you go with the p1sc, you will have to increase your boost level to get more power, and then you will be contending with more heat due to the increased boost. do your self a favor, get teh D1sc if your going to spend the cash on a supercharger...it will save you money in the end! I wish I would have purchased the ATI when I got my paxton...that decsion alone would have saved me a lot of money!!!

Demon · Posted: Thu Mar 08, 2007 1:00 pm Post subject:

Demon · Posted: Thu Mar 08, 2007 1:05 pm Post subject:

Dewey316 · Posted: Thu Mar 08, 2007 1:08 pm Post subject:

no, that is not nearly the detail you would need. You need to see a compressor map, that shows the effeciency for a given RPM and thus CFM flow vs pressure ratio, then map out the engine use on that, and find which one hits the best effeciancy.

It would probably take a call to ATI, and specificly ask for the compressor maps for the two models.

Demon · Posted: Thu Mar 08, 2007 1:13 pm Post subject:

hrm, they used to have them online on that page... let me see if I can't track them down ... I know they're available online though

RSFreak · Posted: Thu Mar 08, 2007 4:17 pm Post subject:

Craig, I seem to remember you running some decent numbers (mid 12s?) at the SIR gathering several years ago. Your car was definitely the pride of the crew at that event! Cool