Ok plans have changed for me. Picked up my new truck on Thursday! Its a '96 ext cab Z71.

Anyhow, I have decided to make stage one on my Iroc a supercharger and be done with it. Stage two in a few years will be a fully built motor and the twin turbos (have not gaven up on that idea).

So.... I want to save up for a blower that I'll get this summer. Just wanted to start my research. I don't want an ATI because I don;t want the loud *** blower whistle. I just road in and heard an Iroc with a Paxton on it the other day, and it sounded great. Couldnt tell there was a blower on it. And I liked that.

So... Paxton or Vortech, and why? Will one make more upper RPM horses? I mean, you can only have so much usable torque, and the rest is wheel spin. And it's going to be a street car so a drag suspension setup isnt an option. So, one of the two will make more power up top that would be good. Ok, enouh.

-Tim

 

Go with the Vortech, the ball drive in the paxton is outdated and known to fail, (though some people have had some luck with zero failures), plus the Vortech can flow more CFM's. also there are many different models of Vortechs to meet whatever horsepower goals you have.

I personally went with the ATI because of the intercooler option, and it's only loud at a idle (mine tested at 97 dB's), when your cruising you barely even know it under the hood, until you step on the throttle,
then Strap-in, Shut-up, and Hang-on!!!!:lala:

later
larry

 

Any others?

 

www.procharger.com

 

Nobody has anything to say on Paxton VS. Vortech?

 

I had a Paxton. The problem with it is twofold. The planetary ball drive system is prone to failure. Paxton themselves changed the recommended fluid three times in the two-year period I owned one. That to me means they cannot find a solution. Secondly, the SN series blowers have a redline of 38,000 rpm. This limits the amount of boost that can be created. In contrast, Vortech and ATI's blowers have a redline of 65,000 rpm. To put this into perspective, I was producing 6-psig boost with the Paxton but the compressor's redline was reached at 4,881 engine rpm. My engine was built for a 6,000 rpm redline. The only solution to this dilemma was to UNDERDRIVE the blower. This allowed my engine to get to 6,000 rpm without exceeding Paxton's compressor redline. But the result was LESS boost!! So it was not the solution. In contrast, I am now producing 14-psig boost at ~5,400 engine rpm. At that point, the D1SC is turning at slightly over 51,000 rpm, far short of the 65,000 rpm redline. This means I can speed up the blower in relation to the engine to produce even more boost!!

When I decided to go with either Vortech or ATI to replace the Paxton (I got tired of spending hundreds every time it needed a rebuild), I originally chose Vortech. Before I had a chance to buy one, ATI introduced their self-contained blowers. I changed my mind immediately.

I've had a D1SC for 15 months now and she's going strong. It's hard to believe the amount of boost this compressor is capable of. Add to it an intercooler and you've got the best of both worlds.

Lately, I've been experimenting with total timing. As we all know, compressed air = very hot air. This hot air causes detonation. The solution is:

1) To retard total timing (Vortech's solution), or
2) Cool the compressed air (ATI's solution).

Which is a better? That's an easy one to answer. Retarding timing will help prevent detonation, BUT lost power results. Cooling the compressed air is the solution. There are no drawbacks to intercooling. I've been able to sustain 36 degrees at WOT with absolutely no detonation.

So to answer your original question, I choose Vortech over Paxton. But I need to add that I also choose ATI over Vortech.

 

the reason there is not much to say about Paxton vs. Vortech is because they are not in the same league. the paxton is in the league with blowers like powerdyne. The SN series sucked not even close to an A-trim and sure the NOVI is a good blower but nothing compared to an Vortech s-trim or a procharger P1sc.

 

There will be some leaps and bounds made by paxton sooner than later now that Vortech has aquired them.

 

well I'd go for the intercooled procharger if it didnt sound like an airplane just sitting at idle! I wish they were silent like the paxton.

 

well I'd go for the intercooled procharger if it didnt sound like an airplane just sitting at idle! I wish they were silent like the paxton.

I wouldn't call the Paxton "silent". I used to love the sound at idle. I've heard the Vortech (and have video too) and it is no more or no less silent than my D1SC.

Willie

 

Could you send me (or post) sound or video of the Vortech?

I'm going on the paxton I heard on a 350 Iroc on Easter weekend. Couldnt hear much of anything but the loud *** Flowmaster. Maybe there is some hint to the supercharger there but nothing like the ATI that I've also heard in person on a friends '91 Formula.

 

Well, the best I can do is make a suggestion. Call Vortech and ask what decibel rating their blowers are. My D1SC was rated at 96dB. Then ask your buddy with the ATI what his is rated at. It's hand written on the packing slip.

Willie

 

hmm..... good idea.

 

vortech didn't acquire them, the two companies had tomerge to try and keep up with ATI

that should tell you something

 

I agree.

 

As far as "merging" ask the owner or vortech, I used to work at a parts store in moorpark (where vortech was before the move) and he had told me they were aquiring paxton about 4 months before it happened. That and last year for about a month i was one of those happy oh so nice vortech technical reps that you'd call if your kit wasnt complete or if you didnt have any mechanical skills and wanted to install a supercharger.... On the flip side i worked for paxton in their shipping and recieving dept a few years ago, there was mentioned something about a lawsuit involving a patent infringment that paxton made on a vortech supercharger. Ask people from paxton they say its a merger, ask apeople from vortech its an aquizition. Then ask yourself which company is more succesful. IMHO id go with an ATI. hehe, i know too many of the people that work at both places.

 

If you are going to get a great deal on a a paxton, and if you plan to keep you rmps max @ a5000; paxton may work for you. However, if you are going to spend the money...get the ATI! The best supercharger out there!