I was looking at the lysholm TS's last night the 1200ax and 1600ax and they plain old suck when it comes to advances in TS technology. Look at the conmparison between the KB/ Autorotor Vs. the Lysholm 2.3 or 2300ax. the KB blows lysholm awayinevery category, im assuming its the same for the whipple. the internals are 100 times better than the lysholm. Someone need to get ahold of a KB or a Whipple and do their own conversion. The 1200ax is nice if you only wanna run 20 psi with a 2.9" pulley and thats overspinning it, the damn thing maxs out at 14k or 15K constant which is just rabbit turds compared to the 20+K of a whipple or KB. Heres a comparison chart. Why do you think whipple decide to make their own TS's instead of getting them from lysholm.

http://www.kennebell.net/techinfo/fo...RvsLYSHOLM.pdf

 

KB won't sell you just the blower. They never have and they never will. You want a TS? Get a 1.6L whipple

 

I was researching the swap over a year and a half ago and even gave advice to TAG when they first announced the idea. The KB is just a rebadged Autorotor Twin screw. Autorotor and Lysholm are owned by Opcon. Look on Lysholm's website http://www.opcon.se/index.asp?sPage=1&langID=1&cID=14 under products the LYS OA units listed on the bottom are the KB head units. The downside to OA series is they have an even lower redline than the Lysholm. That is why they are slightly larger. Whipple used the Lysholm units, but had other companies make forged rotors that would handle the higher RPMs. They stopped producing thier version of the 1200ax because they didn't believe it to be profitable. Trust me I looked for a domestic replacement, but the best option I could find that would easily fit the space provided was the LYS1200ax. Not to mention Lysholm, despite being in Sweden, was far more helpful than any other company I talked to including Eaton, Kenne Bell, Magnuson, Whipple and a few others.

 

Well is it possible to buy the lysholm 1200ax and buy after market bearings that are ceramic ball bearing for example to hop up or upgrade the lysholm. My main concern would be swapping out the rotor for whipple rotors. I know companies sell rebuild kits for all the supercharger such as KB, whipple, eaton, vortech and whatnot so I dont know why you cant buy it and replace all the guts inside. Basically just use the caseing from lysholm and everything else from whipple or KB.

 

The bearing aren't as much of an issue as the cast rotors. Twin screw rotors are much tighter fitting and have thinner edges than roots rotors and at high speeds they collide and self destruct. That is why they are not used in the NHRA anymore. Forged rotors are very expensive to manufacture and require very tight tolerances.

 

yah i know that they are expensive but couldnt you just buy a rebuild kit and swap them out with forged rotors.

 

*interested*

 

if we could build up the lysholm 1200ax to the equivalent of a Whipple W75AX then running 25psi with a 2.5" pulley wouldnt be a problem the rotors and bearings would be able to handle it. Until then 20psi is all were gonna get on a 2.9" pulley because thats all the lysholm is able to handle.

 

That blower will bring more power than the 281whp that it dynoed by changing the exhaust, cams, and porting the head. Not everything should rely on boost.

BTW to give you a price comparison, the cost of the LYS1200ax is about $1,000 cheaper than the W1200ax that was used on the PT Cruiser.

 

i actually saw a PT cruiser with a whipple supercharger on it. I didnt know they made a kit, i thought it was just something this guy fabed up himself. Where did u see this kit for the PT cruiser at?

 

They sold it a few years ago, but stopped after they stopped modifying the Lysholms and started "building" thier own.

http://www.motortrend.com/features/p...sler_ptcruiser