Large custom Spacer between engine and transaxle.
Discussion
I have a one off special being made which uses a midmounted longitudinal engine and audi style transaxle.
However due to packaging constraints, i realistically need to space the engine forward of the transaxle by around 200mm. I cant just move the transaxle as i would end up with unacceptable drveshaft angles.
My initial simplest thoughts are, as i need to make a adaptor plate between the two anyway, i just have it made longer (subject to being able to leave sensible bolt access). Then have an extended input shaft adaptor made to ensure i can engage the clutch plate. Then have spacer made for a concentric slave cylinder.
Any other ideas?
I had thought of torque tube type set up but this is probably too short to do that.
There arent any "gears inward" transaxles short enough except some silly money motorsport stuff well out of my budget.
I was worrying if such a long input shaft would be problamatic without and additional bearing for support from any latteral movement.
Anybody got any thoughts?
However due to packaging constraints, i realistically need to space the engine forward of the transaxle by around 200mm. I cant just move the transaxle as i would end up with unacceptable drveshaft angles.
My initial simplest thoughts are, as i need to make a adaptor plate between the two anyway, i just have it made longer (subject to being able to leave sensible bolt access). Then have an extended input shaft adaptor made to ensure i can engage the clutch plate. Then have spacer made for a concentric slave cylinder.
Any other ideas?
I had thought of torque tube type set up but this is probably too short to do that.
There arent any "gears inward" transaxles short enough except some silly money motorsport stuff well out of my budget.
I was worrying if such a long input shaft would be problamatic without and additional bearing for support from any latteral movement.
Anybody got any thoughts?
stevieturbo said:
gears inward ??
gears forward of the diff. eg corvette transaxle, Radical RXC and some single seater transaxles. Most audi transaxles have the gears behind the diff. stevieturbo said:
But by f
k, 8" is one hell of a spacer !
I know. lol. Im thinking the simplest way for the spacer to avoid machining a massive lump of metal is to use an OEM bellhousing and in effect make an adaptor plate from transaxle bellhousing to the OEM bellhousing which should be much thinner. k, 8" is one hell of a spacer !Audi 01E is the box.
So a bearing sounds like a necessity. Hacking apart a second bellhousing might be the best solution then as it has a bearing in the right place and i can use the engines OEM spec clutch, flywheel and release bearing. So in essence i would just be making a much smaller adaptor place and custom "second input shaft" to mate up between the two.
So a bearing sounds like a necessity. Hacking apart a second bellhousing might be the best solution then as it has a bearing in the right place and i can use the engines OEM spec clutch, flywheel and release bearing. So in essence i would just be making a much smaller adaptor place and custom "second input shaft" to mate up between the two.
Exactly on the dimensions Stevie. Its a single seater replica so if the engine is mounted directly to the transaxle, it sticks out the bodywork too much to hide with minor body tweaks. Any further forward than the 200mm and it encroaches on the bulkhead.
From what i understand machining wise, its the inside spline work thats the difficult bit. My idea is get a clutch plate with correct centre spline, hack and maim then weld it to the engine side input shaft (probably seam welded then a tube sleeve welded as well??). Assuming that kind of method can be made strong enough.
From what i understand machining wise, its the inside spline work thats the difficult bit. My idea is get a clutch plate with correct centre spline, hack and maim then weld it to the engine side input shaft (probably seam welded then a tube sleeve welded as well??). Assuming that kind of method can be made strong enough.
Gassing Station | Engines & Drivetrain | Top of Page | What's New | My Stuff