$200,000 Billet Supercharger?

[Toejam]

no re-certifications,just service between national events if you want to run 5.80's

I thought all Blower Rotors had to be re-certified? Remember how the Whipple's were rendered useless cause they couldn't re-certify the rotors?

 

[Al smith]

I thought all Blower Rotors had to be re-certified? Remember how the Whipple's were rendered useless cause they couldn't re-certify the rotors?

roots need no certs if i recall.

 

[handsome]

correct. .the only blowers that require certifications are screw blowers. the overdrive is so high that the rotors need to be checked for cracks. plus in a PSI screw, one of the rotors is actually 2 pieces epoxied together so that has to be checked. . roots blowers use billet rotors.

 

[Buns]

Which blowers are legal for use in NHRA Pro Mod cars?

 

[handsome]

roots blowers. .

 

[Buns]

Thanks for the info.

 

[Badcocrewman]

correct. .the only blowers that require certifications are screw blowers. the overdrive is so high that the rotors need to be checked for cracks. plus in a PSI screw, one of the rotors is actually 2 pieces epoxied together so that has to be checked. . roots blowers use billet rotors.

Its more than 2 pieces. Lots more.

 

[Toejam]

correct. .the only blowers that require certifications are screw blowers. the overdrive is so high that the rotors need to be checked for cracks. plus in a PSI screw, one of the rotors is actually 2 pieces epoxied together so that has to be checked. . roots blowers use billet rotors.

I guess that does makes sense, I was at Phoenix when Mike Troxell's PSI came apart! Talk about a Metal shower!!!

 

[handsome]

Its more than 2 pieces. Lots more.

i was just talking the difference in the rotors.

 

[Toejam]

correct. .the only blowers that require certifications are screw blowers. the overdrive is so high that the rotors need to be checked for cracks. plus in a PSI screw, one of the rotors is actually 2 pieces epoxied together so that has to be checked. . roots blowers use billet rotors.

But Whipple's needed Certicfication, Not sure if they were considered a Screw, but they turned them like 65% over!

 

[handsome]

But Whipple's needed Certicfication, Not sure if they were considered a Screw, but they turned them like 65% over!

yes the whipple is a screw. I think it's a deal that once nhra and sfi decided one screw blower needed to be certified then ALL screw blowers needed to be certified.