scootz
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| posted on 26/2/09 at 10:02 PM |
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Best Gearbox for Front Engine / RWD
Assuming 400-ish bhp and 300ish lb-ft torque, then what say you on suitable gearboxes... ?
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cd.thomson
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| posted on 26/2/09 at 10:26 PM |
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strengthed Borg Warner T5?
I know the standard one will deal with 300+ish bhp from the cossie YB
Craig
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ss1turbo
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| posted on 26/2/09 at 10:28 PM |
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Not many in that league as standard - BW T5, some of the Tremec ones off the top of my head...
Long live RWD...
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scootz
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| posted on 26/2/09 at 10:29 PM |
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Cheers Craig... what's involved in 'strengthening'?
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cd.thomson
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| posted on 26/2/09 at 11:28 PM |
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http://www.gearboxman.co.uk/infot5.html
Sorry - not locost, but with big torque figures people start charging big bucks!
The casing itself is fairly bulletproof I think and the stronger gearsets will make the whole thing take some monster punishment.
(I knew my Capri days would help someone out on here eventually  )
[Edited on 26/2/09 by cd.thomson]
Craig
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James
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| posted on 26/2/09 at 11:33 PM |
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Might be worth a u2u to Hicost pointing him at this thread.
He's run 450bhp or so for ages in his Se7en using a T5 IIRC. See what he's got in his.
It's survived the odd 5000mile rally and track days so it must be pretty strong! 
HTH,
James
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"The fight is won or lost far away from witnesses, behind the lines, in the gym and out there on the road, long before I dance under those lights."
- Muhammad Ali
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Volvorsport
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| posted on 26/2/09 at 11:50 PM |
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getrag .
SMG versions aswell , 6 spd
generally tho the t5 box has the best ratios
www.dbsmotorsport.co.uk
getting dirty under a bus
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hobbsy
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| posted on 27/2/09 at 12:00 AM |
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Std gearbox and diff on a 200SX S14(/S14a) will take that...
I know as its around what mine had (less bhp but more torque)
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Ben_Copeland
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| posted on 27/2/09 at 07:11 AM |
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You have to remember that due to the car weighting a lot less there SHOULD be less stress on the drivetrain.
I would say the T5 box would be fine
Ben
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speedyxjs
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| posted on 27/2/09 at 07:56 AM |
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Supra box. Im told they're not too expensive either
How long can i resist the temptation to drop a V8 in?
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matt_claydon
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| posted on 27/2/09 at 08:00 AM |
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Supra 'box should do it with ease
Edit: Just beat me to it!
[Edited on 27/2/09 by matt_claydon]
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CaptainJosh
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| posted on 27/2/09 at 08:27 AM |
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T5 every time, loved by V8 fans for a reason
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coozer
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| posted on 27/2/09 at 08:41 AM |
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Supra W58 box, I have one but struggling to get a bellhousing to mate to my zetec
1972 V8 Jago
1980 Z750
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scootz
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| posted on 27/2/09 at 02:51 PM |
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Noticed mention of the good ol' Type 9 being stronger than many think... any further evidence of this?
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alistairolsen
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| posted on 27/2/09 at 03:08 PM |
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quote:
Originally posted by scootz
Noticed mention of the good ol' Type 9 being stronger than many think... any further evidence of this?
not to support 400bhp reliably, not a chance!
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scootz
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| posted on 27/2/09 at 03:17 PM |
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Thanks you Alastair... Type 9 - DELETE!
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mr henderson
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| posted on 27/2/09 at 06:29 PM |
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I reckon that Audi V8 is going in that TVR
Am I right?
John
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mr henderson
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| posted on 27/2/09 at 06:39 PM |
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quote:
Originally posted by mr henderson
I reckon that Audi V8 is going in that TVR
Am I right?
John
When I wrote that I hadn't yet read this
http://www.locostbuilders.co.uk/viewthread.php?tid=107358
as I tend to work my way down from the top, so I still claim the credit for my assumption skills
John
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scootz
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| posted on 27/2/09 at 10:44 PM |
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Indeed you are! That's my thinking at the moment anyway! Just got to try and work out a cost-effective box / diff combo!
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scootz
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| posted on 4/3/09 at 09:40 PM |
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Went for an ex-Cosworth Borg-Warner T5. Hopefully will do the trick!
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mr henderson
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| posted on 4/3/09 at 09:47 PM |
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quote:
Originally posted by scootz
Went for an ex-Cosworth Borg-Warner T5. Hopefully will do the trick!
So what about the axle then? What sort is it now? TR6?
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scootz
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| posted on 4/3/09 at 10:54 PM |
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Not sure... still to find my way about the TVR.
Calling Seabass... (he has a Mk2 Vixen).
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mr henderson
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| posted on 5/3/09 at 07:49 AM |
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If it currently has an IL6 2.5, then it's odds on it's a TR6 axle. Which means that you will only be able to use about two fifths of what
the Audi engine can produce, (if you want the axle to last, that is)
Actually, using an Audi engine in a Triumph based car makes sense, because
Triumph were owned by British Leyland
British Leyland owned Land Rover
Land Rover were owned by Ford
Land Rover were also owned by BMW
BMW used to supply engines to Bentley
Bentley are owned by VAG
VAG made the Audi engine
John
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NS Dev
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| posted on 5/3/09 at 08:22 AM |
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looks like I'm too late, (and too be honest the T5 is a better box) but we are successfully (so far) using a GM R25-R28 box from an Omega 3.0
manual (mainly fitted to police ones but there are a few around) behind a 375hp+ and lots of torque vauxhall XE with very large turbo installed in an
Opel Kadett and its not gone bang yet despite a lot of standing starts at drag events..............boxes are £70 ish
Retro RWD is the way forward...........automotive fabrication, car restoration, sheetmetal work, engine conversion
retro car restoration and tuning
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