It would be best to have a special crankshaft made for the rear engine, like mentioned it will be looking at twice what
it was meant to take for torque.
I suppose it is possible. So is the torsional damper on the rebuilt engine new? How do you measure the vibrations?
Most trucks that I have been around use nonsyncronized transmissions because they are a number one wear item especially with such high torques to deal with.
So what is the size of the vehicle?
What kind of loads are on the output shaft of the transmission?
Is it a large earth moving machine or a race car?
There are many transmissions that have been designed for most all applications.
Why reinvent the wheel?
It laughable using basically a motorcycle transmission in a car or truck application and shifting it electronically.
If you want a reliable CVT just go with a multi element torque converter, and tune the lockup clutch to better synchronize with shifts and not to go into torque converter mode so...
It is very funny how they keep trying something that is destined to fail, and end up back at the good old band and clutch planetary automatic transmission. The reason for CVT is trying to bring manufacturing costs down. Problem is to sell them they have to increase the warranty period, and after...
And how many of the future multi speed automatic transmissions in planning stages have the planetary and clutch packs
that has been around for the last 60 plus years?
I will never understand how anyone with any understanding of torque transfer would even try to design something to transfer many hundreds ft/lbs of torque on such an infinitesimal small contact point that also has close to zero friction ie no teeth to engage and bathed in a lubricant. The...
It is to maintain the correct angle to the differential pinion which will always be lower than the center line of the engine since it is usually below the centerline of the rear axle centerline. Of course things are a bit different on the independent rear suspension type cars. I was mostly...
"The container says" If I was marketing a fluid, I would say the exact same thing. And if the transmission failed 1 hour after the fluid was changed. The failure would be blamed on a transmission that was already going to fail before the fluid was changed, just like any other fluid manufacture...
I can't see a fluid that is more for say a GM and Ford Transmission, working in a Lexus or Mercedes Transmission.
Are not fluids designed for the specific manufacture? The fluid is as important as the parameters, the friction material, it is almost an integral part of the transmission. And yes...
Just wondering why a reputable transmission shop would use non manufacture approved fluid, just because the container says
it meets the spec? And we all know that the Fluid manufacture will not cover any damage to the transmission, nor will the shop after a month or so.
Jay, I agree way more costs for the 8 and 9 speed. So why are they doing it rather than a nice cheap CVT? If CVT is so great, how come you don't see them in heavy haul trucks, fire trucks, garbage trucks etc?
It has its place, and in an automotive transmission is not the place. Yes all will read the marketing into it. But there is a reason for not going with the CVT design. And if it was for nothing, for them to use conventional means in these 8 and 9 speed transmissons, it then makes no sense to use...
http://www.motorward.com/2011/06/zf-9-speed-automatic-transmission-details/
More good stuff. Now why go through all this when you can have a cvt?
CVT's are like 8 track tapes.
http://content.usatoday.com/communities/driveon/post/2011/08/chrysler-first-to-use-8-speed-transmission-on-mainstream-models/1
I think most manufactures learned the cvt lesson. And have decided with 8 and higher speed automatic transmissions, with I suppose very close ratio. Makes alot more...
The problem is, it is not locked in one particular gear, its in constant motion especially at lower speeds and accelerating and decelerating. Do they have any ability to use the engine to brake like most transmissions do?
If there is a pinching of the pulleys to force the belt to go to a larger diameter pulley, there is
very high contact pressure at belt and pulley, as well as the torque pressure to or from the belt.
And since the contact area does not even come close to the size of a wet clutch pack, I just can...
