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Hollowpockets
4,769 posts
85 months
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Looks and sounds good but how much is it and how much torque can it handle??? It needs to be able to take 500lb/ft really before it's any use for our nobles.
G
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Scuffers
10,411 posts
143 months
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Adrian W said: Simon any idea of how much torque it can handle? initially looking at 500Nm conservatively
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Hollowpockets
4,769 posts
85 months
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Just got in touch with them, it also needs removed/serviced/rebuilt every 2000 miles!!!
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Scuffers
10,411 posts
143 months
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Hollowpockets said: Just got in touch with them, it also needs removed/serviced/rebuilt every 2000 miles!!! race miles..... not road miles... it's actually pretty good compared to the majority of sequential's out there (some are as low as 500)
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Gadgeroonie
4,998 posts
105 months
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sadly 500 nm is only about 360 lb/ft
barely enough for a standard noble
very neat little unit however - might be worth chasing up to see if they can do a stronger version
for now the gearboxman box still seems the best solution
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Hollowpockets
4,769 posts
85 months
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Gadgeroonie said: sadly 500 nm is only about 360 lb/ft
barely enough for a standard noble
very neat little unit however - might be worth chasing up to see if they can do a stronger version
for now the gearboxman box still seems the best solution I've already asked if there are plans to increase the capabilities of the box so should get a reply monday. Gearbox man isn't really anything other than a short term solution though as there have been more breaking while running on low boost 420lb/ft, we need a stronger box/gear set and my car won't be back on the road till I'm satisfied it's going to handle 500lb/ft day in day out.
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andygtt
6,376 posts
133 months
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I want a box that takes 650ftlb... i'm only actually going to run 550-600ftlb but want a safety margin. wonder what the new audi dsg box's can do... Id take a 50kgs weight hit for .4s improvement in acceleration on each gearchange 
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Gadgeroonie
4,998 posts
105 months
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"Gearbox man isn't really anything other than a short term solution though as there have been more breaking while running on low boost 420lb/ft, we need a stronger box/gear set and my car won't be back on the road till I'm satisfied it's going to handle 500lb/ft day in day out. "
did anyone find out what failed ?
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Hollowpockets
4,769 posts
85 months
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Of the failed upgraded box's it seems splines on 5th are still failing and the weak point.
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Gadgeroonie
4,998 posts
105 months
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Might be worth investigating cryogenic freezing to see if it will strengthen the splines.
Does anyone have any photos of a failed and new shaft
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R0162
2,435 posts
33 months
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andygtt said: I want a box that takes 650ftlb... i'm only actually going to run 550-600ftlb but want a safety margin. wonder what the new audi dsg box's can do... Id take a 50kgs weight hit for .4s improvement in acceleration on each gearchange whats that box i saw on the Jetsteam race car? the one where they rotated the engine, is that the box they used on the M15, are'nt they any good?
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Gadgeroonie
4,998 posts
105 months
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i think it was graziano (or something sounding similar)
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Gadgeroonie
4,998 posts
105 months
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sundance002
785 posts
33 months
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Gadgeroonie said: Might be worth investigating cryogenic freezing to see if it will strengthen the splines.
Does anyone have any photos of a failed and new shaft On mine the splines that control 5th had completely sheared off, all of them. I am looking at what the possibility is of making a new shaft and spline but retaining the same gears, but using a stronger material for the shaft and spline, ie tungsten, titanium, even carbon steel, just investigating to see what choices if any would work, problem being contraction and expansion if you are combining different materials. Purely as a experiment just to see what options there may be again if any, but if you don't look you don't find. Something will turn up I'm sure.
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Scuffers
10,411 posts
143 months
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Gadgeroonie said: sadly 500 nm is only about 360 lb/ft
barely enough for a standard noble
very neat little unit however - might be worth chasing up to see if they can do a stronger version
for now the gearboxman box still seems the best solution 500Nm = 369lb/ft. As I said, this is it's initial rating, what it will actually put up with will be higher, just at this time that's all it's being warranted for. the issue here is that there are very few transverse sequentials that have higher torque capacities, and even then, they are HUGE and probably too long to fit. Realistically, how much torque are you making? and by this I mean in the car and able to put down on the road without wheelspin? if the std box (with gearsets etc) can almost cope, then I am pretty confident that this box is considerably stronger than that. Here's some pics of the internals:    By Gearboxman, do you mean Berni?
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Blu3R
1,399 posts
68 months
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There are a number of cars that I can think of that output around 700-750Nm of torque.
My virtually standard car would destroy a box capable of only holding 500Nm.
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Scuffers
10,411 posts
143 months
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Blu3R said: There are a number of cars that I can think of that output around 700-750Nm of torque. Genuinely? (as in calibrated engine dyno'ed numbers?) and if they are, can they actually put that down without lighting up the rears? Torque on the gearbox is really the reaction of tyre grip to the engine as opposed to what the engine may be capable of. I would suggest that unless your on some pretty impressive slicks, your not going to be able to use 700-750Nm without breaking traction (or at least till your in high gears). out of interest, what's the size and spacing of the gears you use now?
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Adrian W
8,118 posts
97 months
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Mine is making more than 550 lbs and can put it down no problem on hot Corsa's. How much is that box with shifter
Accepting that first doesn't count
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Scuffers
10,411 posts
143 months
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Box is ~£12k start price, Geartronics shifter system is ~£3K (+ wiring etc)
obviously, a new front section will need to be designed made (easy enough) to mount to the V6, would need to look at the flywheel/clutch setup (spacing/splines etc), then fabricate some mounts up (easy enough), and finally, come up with some drive-shafts etc.
Just so I can get my head round this, what gearbox are you currently running, with what driveshafts and joints?
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Gadgeroonie
4,998 posts
105 months
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sundance002 said: On mine the splines that control 5th had completely sheared off, all of them.
I am looking at what the possibility is of making a new shaft and spline but retaining the same gears, but using a stronger material for the shaft and spline, ie tungsten, titanium, even carbon steel, just investigating to see what choices if any would work, problem being contraction and expansion if you are combining different materials. Purely as a experiment just to see what options there may be again if any, but if you don't look you don't find. Something will turn up I'm sure. might be worth considering getting a new shaft and cryo treating it - if it works then you have solved the problem for us all. I will do some research and see if there are any stats on increases in strength alternatively you may be able to weld 5th gear onto the shaft using electron beam welding, very precise and gets good depth of weld it may also be possible to weld a collar over the 5th gear splines of the failed shaft and then machine the gear to fit the collar i can recommend a company to do custom gears if you want to pm me sundance - do you have any pics of the failure ? did it happen after a gearchange or a loss of traction ie a shock loading
yes the gearbox man is berni
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