gears
#4
Three Wheelin'
Join Date: Dec 2007
Location: out in the sticks and flat lands of va wondering around for an open field or pavement!!!
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They were custom made I don't know if anyone does them as set for the 944 series. Maybe possible in standard ratio's but I even changed all of that also.
#5
they are much eaiser to make .. they should be cheaper .
i would like to have taller strait cuts made for first and second gear not the bigger gears as it would suck when cruising
i would like to have taller strait cuts made for first and second gear not the bigger gears as it would suck when cruising
#7
Rainman
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just curious, why?
the helicals will probably last longer as they have more surface area for torque to be applied to.
they sound awesome though but even that gets old after a while of 3000rpm highway WHIRRRRRRRRR
the helicals will probably last longer as they have more surface area for torque to be applied to.
they sound awesome though but even that gets old after a while of 3000rpm highway WHIRRRRRRRRR
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#8
Nordschleife Master
Thread Starter
why did you do them?
#9
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Yes, more details Costas???
#10
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#11
Three Wheelin'
Join Date: Dec 2007
Location: out in the sticks and flat lands of va wondering around for an open field or pavement!!!
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Well it had all started years ago when I was going threw tranny's (my driving or more power or both). My father being a Class A mechanist gave me an idea to do this and so far the tranny has out lasted one car and is in another one now . I had him make me custom hardened gear straight cut shot peened and and to wrap things up a Quife diff because becomes the weak point after the gears. All the ratio's are shorter so I can be in my power band always outside of of 1st. It is center to do the most damage around 50-120mph( most used speeds on track). At my increase readline(8300rpm) my top speed is only (due to gearing) 161mph.
The cost to do it now I would not know because my father has passed a few years back .I can check around at a few of my friend that do this line of work as my father did to see if they can emulate my gearbox and how much.
But if you are not putting serious power down I don't see the need if all you want is the sound of it if that is what you want it's an expensive sound to purchase ...lol
The cost to do it now I would not know because my father has passed a few years back .I can check around at a few of my friend that do this line of work as my father did to see if they can emulate my gearbox and how much.
But if you are not putting serious power down I don't see the need if all you want is the sound of it if that is what you want it's an expensive sound to purchase ...lol
#12
Rennlist Member
The reason to do it is because the gear box efficiency will go up quite a bit. The teeth of elical gears rub against each other while they turn, causing a lot of extra friction. This will yield a higher net power at the wheels.
#13
Nordschleife Master
Thread Starter
I found a shop that has an offering for the 6speed box, but not one "off the shelf" for the 5 speed, even though the shop I found says they offer them for the 5 speed... they only list cost and pics of the 6 speed...
don't ask the cost, the conversion factor kills us in the US, was approaching 16K...
BUT I do have Pro-E and know many a machinist....
#15
you can investigate here.
http://www.emachineshop.com/
yeh wire cut would work who was the place with bits for the 6 speed box ??
http://www.emachineshop.com/
yeh wire cut would work who was the place with bits for the 6 speed box ??