Would this improve the 901's ability to handle horsepower?
Full Version: Billlet intermediate plates?
Saw these on Ebay:Billet intermediate plate
Would this improve the 901's ability to handle horsepower?
Would this improve the 901's ability to handle horsepower?
IMO, no it wouldn't make much difference.
The 901 has a few weaknesses, the biggest is the 1st and reverse gear hung over the back end unsupported, not much you can do about that.
the second is the case has a tendency to warp under high torque loads, the intermediate place may help a little with that. The third weakness is that the pinion gear is a bit skinny and under high torque it can deflect and climb the ring gear, ruining the proper gear mesh and breaking things.
If you have a bunch of money you need to get rid of, buy that plate. just don't expect it to solve all the limitations of the 901.
The 901 has a few weaknesses, the biggest is the 1st and reverse gear hung over the back end unsupported, not much you can do about that.
the second is the case has a tendency to warp under high torque loads, the intermediate place may help a little with that. The third weakness is that the pinion gear is a bit skinny and under high torque it can deflect and climb the ring gear, ruining the proper gear mesh and breaking things.
If you have a bunch of money you need to get rid of, buy that plate. just don't expect it to solve all the limitations of the 901.
| QUOTE (Sammy @ Jan 3 2005, 09:54 PM) |
| The 901 has a few weaknesses, the biggest is the 1st and reverse gear hung over the back end unsupported, not much you can do about that. |
This is the biggest one, IMO.
I don't know if the billet intermediate plate is worth it or not. I installed one in a 901 and never have tried it (we converted to 915).
I agree that the first/reverse hung out behind the intermediate plate is a big weakness, but in my opinion, when HP and torque are bumped up, the next weak spot seems to be that the mainshaft and pinion shaft warp/bend/deflect and let the gearstacks climb each other (which in my experience generally eats 4th gear).
Perhaps this is a result of the pinion gear climbing the ring gear, but I don't know for sure.
I agree that the first/reverse hung out behind the intermediate plate is a big weakness, but in my opinion, when HP and torque are bumped up, the next weak spot seems to be that the mainshaft and pinion shaft warp/bend/deflect and let the gearstacks climb each other (which in my experience generally eats 4th gear).
Perhaps this is a result of the pinion gear climbing the ring gear, but I don't know for sure.
Definitely no pile of money I'm looking to light on fire around here. 
I figured that if the solution to the HP handling problem was as simple as a billet plate, that would be the talk. But, since I don't know squat about the details of the issue, I knew I could ask here and get the real dope.
I figured that if the solution to the HP handling problem was as simple as a billet plate, that would be the talk. But, since I don't know squat about the details of the issue, I knew I could ask here and get the real dope.
Rich at HPH strongly recommended the Billet plate in my rebuild currently underway. Perhaps he would care to comment.
Hmmm,
The plot thickens
The plot thickens
A 904 mainshaft in conjunction with the billet intermediate plate and a few other mods that I cant think of at the moment would be about as far as you could go on the 901. This would safely handle about 200-240hp.
This is a "lo-fi" version of our main content. To view the full version with more information, formatting and images, please click here.