Re: Twin-Cam to T5 Bellhousing Anyone?
Posted: Sat Jan 19, 2008 1:12 pm
And, you can get them modded to take 600 ft-lbs if needed, for your Elan funny car.
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worzel wrote:You'll probably find that 0.82 for 5th might even be slightly low!. I've a Type 9 in a std spec sprint with a 5th gear speed of 22.7 mph/1000 revs. Occasionally I find myself looking for 6th- honestly- so much so that later this year I'm going to do a further mod to change 5th to 0.75 to give 24.9 mph/1000 revs.John
lotuselanman wrote:Lastly talk of using aT5 box, why ? The basic Ford 200E is a strong unit as is the T5 box. These cars are very light and fitting a T5 unless you are also fitting a Sierra Turbo or a BDG to me is total over kill also unneccesaryly expenceive and complex.
garyeanderson wrote:
I have hefted T5's T9's and elan 4speeds, I thinks there all heavy.
The 4 speed is close 70 lbs with the Iron bell, I think the T9 is around 85 and the t5 95 to 105. My bad memory aside, its not that much. The main reason to go withe the T5 is there available here in the U.S. and they have some good ratios available here in the U.S. The best you can do is the merkur box and that will need a lot of work. Or you could send $4k to Alan, then you need some decent ratios for another $2000 to 3000. That aint ever going to happen. A $250 (or what ever it is) adapter plate and the appropreate companion flange adapted to the Elan propellor shaft and some form of off the shelf concentric bearing. This is something that an Elan owner can and would (well maybe, possibly) be willing to pay for. It would be best if that person didn't have to pay all at once and could source the parts as they needed to get them, locally where possible.
msd1107 wrote:Re: Gearbox weights
My T9 (SPC version, should be the same weight as a regular T9) - no bell, stick, or fluids - was 58/59 lbs on the FedEx scale.
I recently got a low mileage Merkur T9 complete with bell and stick ($300+!) but haven't weighed it yet.
Rohan reported a weight of 24.4kg/53.8lbs for a TC gearbox http://www.lotuselan.net/forums/viewtopic.php?t=15794
I had been told in the past that the TC gearbox was quite a bit lighter than the T9, but if these weights are correct, 6lbs is not that much.
Of course, if you are going for a lightweight, the TC gearbox case can be had in aluminum and magnesium, and the bellhousing in aluminum and magnesium also. The T9 gearcase and top plate can be had in aluminum. The usual T9 to TC bellhousing is in aluminum. Both of these would widen the weight difference between these two and the T5 for those of you who have already taken out the spare tire and are using an Odyssey battery to save weight.
David
1968 36/7988
Rob_LaMoreaux wrote:Just to muddle things a bit, I thought when I looked into a T5 for the Elan 5 years ago that I found a Ford application of the T5 with the 1.6 liter kent engine. It is all kind of fuzzy now, but it could have been the last years of the pinto.
So a bellhousing may already be out there.
Rob
johnc wrote:I found some info on the Tremec TR-3550 transmission. The info is from the service manual which can be found at http://www.ttcautomotive.com/English/products/TR-3550.asp.
The TR-3550 has three shifter locations, front, mid, and rear which positions the shifter 7.02", 12.68", and 19.52" rearward from the font face. The Elan shifter is located 10.75" from the transmission front face. The overall length of the unit is 24" compared to the Elan's 24.5". However, the weight is about 25 pounds more than the T5, and apparently is somewhat larger in width and height.