So the only way to safely run the 1500 blower would be to have the bearings upgraded and larger bov, any other cautions?

 

I know, first a big turbo build, then big supercharger and now it is just run of the mill everyting. I promise that I will get better, just give me time.


Well that will help but there are still no gaurntee's. Personally I don't think you will have a problem if you do go this route but I would strongly recommend the Mondo Valve or ATI Pro Flow Bypass Valve. Additionally I would talk with Jeff at SOS about their largest heat exchanger and pump combination to shed the extra heat the 1500 is capible of making.

http://www.vortechsuperchargers.com/product.php?p=24
http://www.procharger.com/store/inde...d&productId=90

Since I am racing the car I need everything to be bullet proof.

 

Hmm, that's kind of a bummer to read. I was going to try out the N1200 on my Comptech kit and see what I could do with it, then step up to the N1500. I have a Turbonetics Godzilla on my Comptech aftercooler, and have a larger heat exchanger (26X7X2) But am considering going to the 3.5" thick one with a bigger pump. I imagine the failures with the N1500 were associated with overspinning the blower, do you know by how much?

I'm pretty sure you and I are shooting for the exact same thing. Pushing the limits on a supercharger while still having it daily/track reliable.

Here's a link to my build thread if you're interested.Click

 

It's not that it won't work it just has to be done properly. All the failures were attributed to surge not over spinning after reading your build I don't think you will have an issue.

Very nice build!

 

I gotcha.

In that link you posted, it also mentioned you can get compressor surge under load. I would imagine that would just be the setup not being able to flow the CFM through the engine during WOT, which our engines shouldn't have that problem, correct? So like you stated earlier, it all just comes down to being able to evacuate enough pressurized air during high RPM closed throttle conditions. So in all reality, if I do decide to go the N1500 route and get compressor surge, I could just technically add another BOV into the system, or do you think just the single Turbonetics Godzilla should be sufficient enough?

 

Could closed throttle surge/stall actually break an impeller on a supercharger?

 

Just run twin Tial 50mms and youll be set!

 

You can surge during WOT, to get around that I don't believe that a bypass will help in this case. I think that a BOV might be better to relieve a bit of the systems resistance.

 

My apologies, it was actually 2 different questions I was trying to address. Do you believe there is a surge issue at WOT with our engines or just closed throttle?

 

Gotcha, I think it is actually a part throttle issue, enough to close the bypass but not 100% flow.

Racing = On or Off
Street = Part Throttle