So i saw that good ole Stiegmeier has a hybrid M122 using a M112 case/snout. I emailed him and he said that he could make the adapter plate for my jag to slap that puppy in there. Claims 25 rwhp gain and 1# of boost. The cost is very attractive for that bump in hp considering that i'm near the point that i need to rebuild it anyways.

 

Would like Avos to chime in on this one...

 

Well if I could get a $ for each claimed hp stiegemeyer has done so far, I would be a rich man.

The casing will have to be extend, so you basically move the outlet (and inlet) to the rear, so pending on how much longer, there is more work to do obviously.

Bigger isn’t always better, and from what I have read so far about the roots Eaton’s is that after about 15 psi you’re not getting net more rwhp (give or take), their just maxed out there. This can be easily achieved with 3lb upper pulley, at least be close to.

Better spend money somewhere else to get more out of your setup, you could just as well loose power with the 122 lobes on our cars, or the difference might just be marginal imho.

 

Thanks Avos... Gonna have to wait till i order a TS then to see hp gains. Do you have any group orders soon?