Technical > Dan Dishon's Transmission Den
PG Converter
dreracecar:
If you pulled the input shaft out of the housing, what happened is that there are 2 steel sealing rings on the shaft, pull the shaft completely out and check the rings, they each should interlock with themselves, if not and the locking tab is broken then they have expanded to a point where they will not colaspe enough to go into where they should be
bikeguy307:
Sounds like you got all the right advice. Just for future knowledge PG spline is 17 and Turbo is 30. Definitely check the sealing rings on the input shaft, but sometimes they are just stubborn!
Thanks for the question, Dan
George:
As far as shafts go: I ran the 4340 shaft with the PG spline for several years behind the injected 355 (640 hp) with never a problem. When we put the 377 6:71 setup in the car I installed a 300m turbo spline shaft with no problems so far. We really haven't leaned on it yet ( 58/58 ratio) but after sorting it out this year I plan on moving up to 15% over. I see the TS 300m is rated up to 1150hp. What is the life cycle on these shafts? I know anything can be broken but should I look to move up from the 300m ? The next step is the 2517NASA shaft rated at 1800hp. Thanks . George
Sorry no hijack intended. I saw questions on PG shafts and jumped in.
dreracecar:
The 300m shaft is more than anyone on this site will ever need. Mine is going on 12 years running low 7's @ 18 over
bikeguy307:
Horse power is not the only factor when choosing an input shaft. Some things to consider are type of launch, foot brake or trans-brake, how hard your converter hits, and is your car suspended or solid. Solid cars tend to suffer from tire shake and this can be hard on everything including the input shaft. Another thing is does your car dead hook or spin. When all things are factored in it is always better to err on the over kill side, the last thing you need is an input shaft failure in the final.
Hope this helps, Dan
Navigation
[0] Message Index
[#] Next page
[*] Previous page
Go to full version