I think the answer to everyones prayers is going to be the TVS R1320. Bigger than the 1200AX, just as efficient, and can spin a hell of a lot faster. 2k's car had a 2.8" pulley on it, that was spinning the blower as fast as safely possible (twin screws were banned from pro drag racing, because teams would overspin them, and grenade the blower). Either way, with the R1320, I could put a 2.6" pulley on it, and rev to 8k and still be within the limits.

 

damn, i amin the market for a better blower.... i need more powah!!!

 

um, what??? twin screw blowers were never used in top fuel, they create far more boost than they need. top alcohol is were they live, still used on every competitive alcohol dragster and funny car today. the whipple charger was the first screw blower used on these cars but as the years went by PSI developed and came out with a better screw blower. just before whipple released their new design NHRA put a mandate to only allow the currect blowers, so whipple wasnt competitive anymore and faded away. eventualy nobody could certify whipples in the usa and they had to be sent to sweeden for re-certification, now you cant run them at all.

nhra does limit the blower overdrive. its not just a case of the blowers exploding (actualy never heard of it happening) but to try to keep the motors together. a few years back nhra dropped the overdrive on the blowers way down, all that did was make guys change the entire engine/tranny combinations as well as rear end ratios so they could rev the motors higher getting the boost back. its common for an alcohol funny car to rev to 10,500rpm through the top end.

 

Jumpin Fool, that is the issue he's still working. Right now it's looking to be an oil feed/return line setup or another snout design of some sort. He's working closely with the guys a PSE to knock it out since they have a lot of experience with this blower. Mase still hasn't given up.

 

Nice....kinda wish I would have went the SC way.

 

bump for some updates? n e word?

 

wtf are you talking about banned from pro drag racing?!?!

 

so ur sayin that you wont beable to overspin the R1320? anything can fail. The TVS R1320 hasnt proven itself yet. not even outside the cobalt community. its brand new and no one knows its limitations. where as the 1200ax is proven not in the cobalt community yet as they are still working on the kit to be adapted to the cobalt. but that s/c is proven in other markets and people have real life experience on the limitations of the 1200ax. the tvs 1320 should yield to more power as it is over .1L larger than the Lysholm unit. but you cant say the R1320 is going to be the answer to everyones prayers when its not out yet.

 

I talked to the guys at the Eaton booth at SEMA for over an hour about the TVS. They said they tested that blower in extended tests at 15-19 psi, at 18,000-22,000 rpm, and it passed with flying colors. They said they wouldn't recommend spinning it higher than 18,000-19,000, but it is able to withstand 20,000+ if it needs to. I've also seen the flow chart on the R1320, at 17,000 rpm, the TVS is still more efficient than the current gen 5 M62's peak efficiency.

 

that i agree definatly will be more effiecient than the m62. regardless if the 1200AX gets all the minor issues worked out its good to have options, it will bring costs down and have options for different people.

 

I've been interested in this for the last year, no money yet, but the G/f says the Car needs to be faster, so when I have some real choices, we can do it...(I mean that as in a Kit, tested, and turned out well)