“HemiSam” Testing The New 09+ Challenger Carbon Fiber Shaft
Sometimes when we have a problem with one of our products, we get an opportunity to get to know our customers a little better. Sam U. aka “Hemisam” on many Mopar boards, has come to know us as he had a few boot issues with his 1400hp axles. We decided why not let some one who has had an issue test the new Carbon Fiber shaft instead of the traditional “Shop” testing.
Just a little background on Sam, he is a certified mopar nut. He uses his car, not just at the drag strip, but he also loves to do the mile run. The car is a Challenger R/T with a 6.1 based forged/stroked 392 from Arrington. It’s got an Arrington 607 cam, Eagle polished, ported and beefed up heads from Arrington, and to top it off, a Magnuson blower pushing ~10psi. He is making between 650-700rwhp with equal torque without spray. There’s a lot more stuff too, but that should be enough to make for a good candidate to test out the new shaft. Click the favorites page here to follow up on the install and testing of this killer new part.
The Carbon Fiber shaft is a special high modulus 3-1/4″ wind that we had made specifically for the modern muscle cars. It has a fully forged aluminum end for the rear using a heavy duty solid 1350 u-joint and it comes with a billet plate to convert the 3 bolt rear over to a 4-bolt flange style mount (for better balance repeatability). On the front we have decided to use our CV type mount for a couple of reasons. A CV can be used not only for its joint properties, but it will also allow for slide in the shaft that is needed for installation and also to compensate for movement of the drive train when under power. The CV is a special High speed unit that has a full 4340 billet cage, just like our axles, and is mounted to a 300m spline to make sure it transfers the power. We will be working with Sam to make sure the bond areas do not go above what is recommended and we will have more info soon…
well the initial results are in and looking good, here is what Sam had to say.
First launch I was squeamish and the new Hoosiers hooked and I bogged…L.O.L.! Hot lapped it and gave it a bit more. Guy next to me busted up his pickup truck at launch and it made an awful sound…thought it might have been my car but I was still rolling so I stayed in it. Still too much bog.
Got back in the mix, aired down the tires and gave it some more. A bit of bog but holding up. Hot lapped it, had just enough time to air down tires. Decided to give it all. 1.70 60ft, my best ever, and an 11.07 @ 126.96mph. I believe that’s the 6-speed record 
Is there a 6-speed thread here???
My car weighs 4300lbs without me in it. I launched at 4k rpm using a 2-step each time. The Hoosiers hooked despite crappy track prep. The driveshaft looks to be the real deal. Nicely done, Frank!
HemiSam
