Discussion
There was a reason why I asked - recent visit to the factory I noticed that a (admittedly AJPv8) engine ready to be added to car had a Tremec gearbox. Looked very different to the T5 and hence though I stumbled across something....
However, investigation has proven that Borg Warner was bought by Tremec and they have updated the box with a few stronger elements but basically kept it the same... Shame.
So, to follow on - the gearbox "might" be a Borg Warner or a Tremec, but they are basically identical except for a few ratios which you would specify if you wanted a normal or close ratio box....
However, investigation has proven that Borg Warner was bought by Tremec and they have updated the box with a few stronger elements but basically kept it the same... Shame.
So, to follow on - the gearbox "might" be a Borg Warner or a Tremec, but they are basically identical except for a few ratios which you would specify if you wanted a normal or close ratio box....
horse1000 said:
Suspect T5 gearbox replaced the ultra-reliable Rover box in '95 because Land Rover could no longer supply them to TVR - so most Griffith 500s and Chimaeras have the lesser T5 gearbox too. Don't know if it's possible to retrofit a reliable Rover box - anybody done it?
Actually the T5 box is generally percieved to be the better stronger box than the rover box (see used prices). Although the rover box is perefectly adequate for the job. Reverse is a bit of a graunch in the T5, known 'feature' shared with cosworths, and others, unless you select 3rd or 5th before reverse.
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>> Edited by bjwoods on Friday 21st May 14:56
HAd a rover boxed 4.3 griff for 5 years, Now have Griff 500 griff for 6 years, T5 box... imho, Feels better box, better ratios, less problems are the perception. ALL Dealers main/specialist recommend has nicer to have t5, but rover boxed griff still a very nice car...
Don't know why bother rising to bait here, as tone of your post, is like that annoying know it all bloke in a pub (ususually ends up getting punched) just seen a thread about you- so sounds like jigs in disguise...
Won't be replying to an obvious troll/Know all again.
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>> Edited by bjwoods on Saturday 22 May 22:30
Don't know why bother rising to bait here, as tone of your post, is like that annoying know it all bloke in a pub (ususually ends up getting punched) just seen a thread about you- so sounds like jigs in disguise...
Won't be replying to an obvious troll/Know all again.
B
>> Edited by bjwoods on Saturday 22 May 22:30
heightswitch said:
I think you may find that the posters to this link are incorrect? The tuscan to my knowledge is fitted with a Tremec gearbox. The box is based on the T5 but has significant improvements to the internals and shift mechanism. it is also known to be stronger than a standard T5.
Neil.
Tremec bought out Borg Warner's gear division back in 1997, to the best of my knowledge. The main reason they did this was because most manufacturers knew that the Tremec boxes were lower quality; BW had a stack of useful patents, etc.
Later boxes they've made (after the 3550, if I remember their numbers correctly) should be much better as they've both got Tremec's manufacturing base, along with BW's technology.
I'm not sure what that means the Tuscan has in it! Would be interested to know if it has a circlip on 5th gear or anything to stop "that old chestnut" from showing up on the car. The box in my Tuscan actually feels a bit weaker/worse put together than my Cerbera. But at least the synchromesh on second isn't starting to go...
Speak to Bernie at Competition Transmissions (01582) 840008 (posts on here as Gearboxman).
He may be able to rebuild your box, if not he sometimes has secondhand ones.
We use T5 boxes in the Tuscans, but with a straight cut 5th gear. Granted they do go bang a fair bit, but that's because we are at the limit of what they can cope with, and if you keep going over bumps with your foot flat on the throttle, allowing the rears to spin up then slow down again as you come back down (e.g. over the start finish line at Knockhill), it puts huge strain through the transmission
He may be able to rebuild your box, if not he sometimes has secondhand ones.
We use T5 boxes in the Tuscans, but with a straight cut 5th gear. Granted they do go bang a fair bit, but that's because we are at the limit of what they can cope with, and if you keep going over bumps with your foot flat on the throttle, allowing the rears to spin up then slow down again as you come back down (e.g. over the start finish line at Knockhill), it puts huge strain through the transmission
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