Gearbox & diff rebuild
Discussion
In the course of my SC500 project there was no shortage of helpful folks who suggested I might destroy my T5 gearbox and the diff with 400ftlbs+.
Had considered the CTS/Quaife option but at around £2k fitted I considered chancing my arm by running the standard.
Chance conversation with Steve Guglielmi led me to Readman Racing/Grantura Engineering - first enquiry was last thursday. The box and diff have both been rebuilt, modified, should be good for 550ftlbs (if treated with respect), all for £600 and ready within 2 working days.
Blimey - couldn't pass that up in the circumstances.
Apologies if I'm behind the curve on this - thought it might be useful to some as when I was looking for gearbox/transmission advice on PH, it was all CTS/Quaife vs Tremec TKO.
http://www.readmanracing.co.uk/
Had considered the CTS/Quaife option but at around £2k fitted I considered chancing my arm by running the standard.
Chance conversation with Steve Guglielmi led me to Readman Racing/Grantura Engineering - first enquiry was last thursday. The box and diff have both been rebuilt, modified, should be good for 550ftlbs (if treated with respect), all for £600 and ready within 2 working days.
Blimey - couldn't pass that up in the circumstances.
Apologies if I'm behind the curve on this - thought it might be useful to some as when I was looking for gearbox/transmission advice on PH, it was all CTS/Quaife vs Tremec TKO.
http://www.readmanracing.co.uk/
and if it don't you will be posting Jammy Dodger said:
In the course of my SC500 project there was no shortage of helpful folks who suggested I might destroy my T5 gearbox and the diff with 400ftlbs+.
Had considered the CTS/Quaife option but at around £2k fitted I considered chancing my arm by running the standard.
Chance conversation with Steve Guglielmi led me to Readman Racing/Grantura Engineering - first enquiry was last thursday. The box and diff have both been rebuilt, modified, should be good for 550ftlbs (if treated with respect), all for £600 and ready within 2 working days.
Blimey - couldn't pass that up in the circumstances.
Apologies if I'm behind the curve on this - thought it might be useful to some as when I was looking for gearbox/transmission advice on PH, it was all CTS/Quaife vs Tremec TKO.
http://www.readmanracing.co.uk/
Had considered the CTS/Quaife option but at around £2k fitted I considered chancing my arm by running the standard.
Chance conversation with Steve Guglielmi led me to Readman Racing/Grantura Engineering - first enquiry was last thursday. The box and diff have both been rebuilt, modified, should be good for 550ftlbs (if treated with respect), all for £600 and ready within 2 working days.
Blimey - couldn't pass that up in the circumstances.
Apologies if I'm behind the curve on this - thought it might be useful to some as when I was looking for gearbox/transmission advice on PH, it was all CTS/Quaife vs Tremec TKO.
http://www.readmanracing.co.uk/
Yes i got my uprated tubular wishbones from Readmanracing ...worked out to be cheaper than standard ones from the TVR suppliers..
Jammy Dodger said:
Apologies if I'm behind the curve on this - thought it might be useful to some as when I was looking for gearbox/transmission advice on PH, it was all CTS/Quaife vs Tremec TKO.
The reason is experience. I've pushed the T5 more than most and it is a lot stronger than many reckon. Sure there are some internal mods that can help but in the end of the day, the limiting factor is the gears. I ran a "similar" spec done by an unknown source on my Supercharged Wedge with about 475lb/ft torque. It lasted about 9 months before something snapped internally. The CTS/Quaife replacement put up with 550lb/ft and slicks with no problems: it even put up with me snapping the diff mounts.
shpub said:
The reason is experience. I've pushed the T5 more than most and it is a lot stronger than many reckon. Sure there are some internal mods that can help but in the end of the day, the limiting factor is the gears.
I ran a "similar" spec done by an unknown source on my Supercharged Wedge with about 475lb/ft torque. It lasted about 9 months before something snapped internally. The CTS/Quaife replacement put up with 550lb/ft and slicks with no problems: it even put up with me snapping the diff mounts.
Fair enough Steve, point takenI ran a "similar" spec done by an unknown source on my Supercharged Wedge with about 475lb/ft torque. It lasted about 9 months before something snapped internally. The CTS/Quaife replacement put up with 550lb/ft and slicks with no problems: it even put up with me snapping the diff mounts.
To be fair I should've made clearer that mine isn't for racing, although I might drag or track it a couple of times a year with nothing stickier than 888s.
The brief on mine was to reliably handle 450ftlbs on a road car where the box is less likely to be banged about and no clutch dump launches.
Jammy Dodger said:
had the invoice now, so no one feels misled :
came to £800 + VAT, 60% box, 40% diff - lots of replacement parts overall, more replaced than expected, the box & diff now fully Tuscan racer spec.
ETA - So, a bit more than the £600 estimated, but more work was done..
Excluding dampers ,brakes etc has it worked out more expensive then the LS drive in drive out route ? came to £800 + VAT, 60% box, 40% diff - lots of replacement parts overall, more replaced than expected, the box & diff now fully Tuscan racer spec.
ETA - So, a bit more than the £600 estimated, but more work was done..
I still like the iedea of having the LS3 and stronger gearbox...
Jammy Dodger said:
ETA - IF IF IF IF TVRs ever appreciate as a classic (and I'm not saying they will), mine will also do so - original block and heads. The LS3 is arguably now in no man's land. I don't know too much about this, but I imagine an e-type with, say, an 80's yank motor is probably worth a lot less than a tuned up original.
Edited by Jammy Dodger on Thursday 29th September 12:31
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