| Author | Message | ||
| FAST FRED (Fast_fred)
Registered Member Username: Fast_fred Post Number: 140 Registered: 10-2006 Posted From: 66.90.229.56 Rating: N/A |
A friend is stuffing a DD Series 50 into a Sportscar of Coaches (4106). The donor transit has the pumpkin on the drivers side (looking forward from the engine) the 06 has the pumpkin on the passenger side. It would take a lot of bulkhead carving to run the driveshaft across and use the transit pumpkin. So he will be using the 06 pumpkin for now.. Is this the case with ALL transits ? Or do some have the pumpkin on the drivers side (again ,from aft). The question is because the use of a transit pumpkin will allow rear axle gear selection , and 40 years newer parts than the 06 unit. As the HP and torque will be double , parts is always a concern. FF | ||
| Don Evans (Doninwa)
Registered Member Username: Doninwa Post Number: 97 Registered: 1-2007 Posted From: 66.45.165.58 Rating: N/A |
"As the HP and torque will be double , parts is always a concern." A series 50 has twice the HP and torque of an 8V71? It wouldn't be the Sports Car of Coaches, it would the Indy Car of Coaches.  I want one!! Don 4107 | ||
| RJ Long (Rjlong)
Registered Member Username: Rjlong Post Number: 1353 Registered: 12-2000 Posted From: 67.181.166.160 Rating: N/A |
Fred - I don't know if the pumpkin placement is the same for all V-drive transits, but it may be, since the majority use the Rockwell/Meritor unit. The "tallest" rear axle ratio for the angle drives is the same as the ratio in the 4106 - 4.125:1. There are a bunch of lower gears available, but with the V-730, it drops the top speed even more. 4.56 and 5.38 are very common transit rear axles, with 65 and 60 mph top speeds, respectively. S-50s run anywhere from 275 - 350hp, with torque readings up to about 1100 ft/lbs or so, not double the 8V71's numbers. As you know, several folk have stuffed a 350 hp 6V92TA in the '06 with good results, the S-50 will be similar, with a lot more shakin' at idle. The V-730 can handle that, and the '06 pumpkin should be OK with it too. Understand the 40-year newer parts thinking, that's for sure. FWIW & HTH. . . (Message edited by rjlong on December 20, 2007) | ||
| john w. roan (Chessie4905)
Registered Member Username: Chessie4905 Post Number: 778 Registered: 10-2003 Posted From: 71.58.48.5 Rating: N/A |
You could put in a 4104 rear with 3:55 gears. | ||
| Paso One (Paso_1)
Registered Member Username: Paso_1 Post Number: 103 Registered: 11-2004 Posted From: 142.165.246.239 Rating: N/A |
Hi RJ There was also a 4:10 combination. I got one from Luke and he was surprised and said no wonder that Bus went like a jack rabbit. It came out of a bus he ran. I also have a spare 4:125 which is the more common "tallist" | ||
| FAST FRED (Fast_fred)
Registered Member Username: Fast_fred Post Number: 142 Registered: 10-2006 Posted From: 66.90.229.85 Rating: N/A |
Anybody with a transit take a look under their bus yet? FF | ||
| Paso One (Paso_1)
Registered Member Username: Paso_1 Post Number: 104 Registered: 11-2004 Posted From: 142.165.246.239 Rating: N/A |
FF I have two transits here 5303 & 5307 both face passenger side one is 68 other is 77 model yr. My spare rear end (on trailer) is 65 and also faces P/S There is also two sizes of pumpkins for 96" and 102" wide buses. P | ||
| FAST FRED (Fast_fred)
Registered Member Username: Fast_fred Post Number: 146 Registered: 10-2006 Posted From: 66.90.226.233 Rating: N/A |
SORRY! The question really should have been better stated. Does anyone with a factory Series 50 in a V drive transit have the pumpkin located on the passenger side? What model bus? FF | ||
| Paso One (Paso_1)
Registered Member Username: Paso_1 Post Number: 106 Registered: 11-2004 Posted From: 142.165.246.239 Rating: N/A |
Thats okay FF after I typed it all I thought maybe you were looking for the answer on the newer buses. But posted it anyway in case you weren't. P | ||
| Pete/RTS Daytona (Pete_rtsdaytona)
Registered Member Username: Pete_rtsdaytona Post Number: 426 Registered: 1-2005 Posted From: 208.118.12.108 Rating: N/A |
GMC RTS-II / TMC RTS-II / Flxible New Flyer / - V731 or V730 with 8V71 / 6V92 / 6V71 / L10 all have the Pumpkins in the center - with the angle drive pointed to the rear passenger side they all use 14 bolt Rockwell 59000 V-Drive rears available in two widths (96 and 102" Nova RTS - Series 50 with V731RH (right hand drive) also use the same setup - center pumpkin / angle drive Hertz and Avis RTS's with retro-fitted series 50 used STEVENSON's Reversers between the engine and the V730/V731 and the same rear end Pete RTS/daytona (Message edited by pete rts/daytona on December 22, 2007) | ||
| James Stacy (Jimstacy)
Registered Member Username: Jimstacy Post Number: 120 Registered: 1-2001 Posted From: 75.63.12.220 Rating: N/A |
I understand the original plan was to run the series 50 backward to solve the rotation problem. But it caused problems getting oil to the crankshaft bearings. Allison also provided an "R" option V730/731 that reversed the input rotation. | ||
| FAST FRED (Fast_fred)
Registered Member Username: Fast_fred Post Number: 147 Registered: 10-2006 Posted From: 66.90.229.46 Rating: N/A |
Thanks guys , this will have the reversing 5 speed Z-F , the final gear I believe is an OD. With Jakes , retarder and those HUGE transit breaks , it should be able to run up or down little speed bumps like the Grapevine at close to 100mph. A real Sportscar ! FF (Message edited by fast_fred on December 23, 2007) | ||
| Pete/RTS Daytona (Pete_rtsdaytona)
Registered Member Username: Pete_rtsdaytona Post Number: 427 Registered: 1-2005 Posted From: 208.118.12.108 Rating: N/A |
Many Golden Gate RTS's have right hand 6V92's into an 5 speed ZF (O/D) - same rear - middle pumpkin - angle drive pointing to Pass rear - same 14 bolt 59000 Rockwell rear axle most have fancy commuter seats and 4.56 or 4.10 rears - with the ZF - O/D they could probably go close to 80MPH |