Power 4.3 CR box, what else for £2k?
Discussion
SumoGreg said:
My Tuscan 2 is getting a Power 4.3, close ratio box and e re-furbed diff. For about £2k what else should I consider adding? I am focusing more on mechanical than cosmetic.
Are you sticking with the 3.43 (3.46) Diff? I had a chat with Dom about ratio's and he indicated the 4.3 benefits from a 3.43, rather than the 3.73 or the 3.91.SumoGreg said:
Did you get bigger discs fitted? How much difference did it make? It has been on my mind for sure. How much for a bigger set of discs fitted, do you know?
Don't bother up grading the standard brakes will cop just fine with the 4.3.the calipers on the the car are normally fitted to cars that weight 400kg more than the TVR. If any thing reduce the unstrung weight by converting from vented discs to bells and rotors.I run a 4.3 Tamora and the brakes have had some very serious hard use in the last few weeks and they cope just fine.
HTH
Buzz
SumoGreg said:
Did you get bigger discs fitted? How much difference did it make? It has been on my mind for sure. How much for a bigger set of discs fitted, do you know?
"S"s came with bigger discs... I thought original spec on an early MK2 3.6 was 16" wheels, I guess you are on 18" now.If you don't have some decent coilovers, get some of those and spend a day at Center Gravity having them properly setup.
Next to that, reducing unsprung weight, some lighter alloys are a good start there. I've been meaning to get some for my Tuscan but a bit of a home disaster has just spoken for all my free cash for the next 6 months...
Something titanium or forged if you've got lots of cash... 10kg unsprung savings to be made easily which in theory should make a major change... so I've been led to believe anyway... acceleration and braking should both be improved.
you'll have run out of 2k by now... but a carbon airbox may be next on the wish list!
Next to that, reducing unsprung weight, some lighter alloys are a good start there. I've been meaning to get some for my Tuscan but a bit of a home disaster has just spoken for all my free cash for the next 6 months...
Something titanium or forged if you've got lots of cash... 10kg unsprung savings to be made easily which in theory should make a major change... so I've been led to believe anyway... acceleration and braking should both be improved.
you'll have run out of 2k by now... but a carbon airbox may be next on the wish list!
ShiDevil said:
Are you sticking with the 3.43 (3.46) Diff? I had a chat with Dom about ratio's and he indicated the 4.3 benefits from a 3.43, rather than the 3.73 or the 3.91.
I spoke to Martin at Bespoke about it. They have done quite a few 4.3s from Power now and they thought that with the CR box the old diff suitably reconditioned should be OK. It hasn't been done yet so there is time to change my mind. Any advice from someone who has driven both would be much appreciated... 
I much prefer the 3:73 compared to a 3:46 with a std box (although my prime reason was to replace the M80 diff with a M76 to get rid of the shunt). Isn't there less benefit of a CR box on a 4.3 with more torque, especially for normal road use ?
Edited by glow worm on Sunday 6th October 17:50
gruffalo said:
Convert it to Euros and go for a two week noon round Europe to enjoy the car.
Don't worry - Europe always features large in this car's biography - out to Italy at least once a year and I live only 10 mins from the Tunnel - so fun without fear for my license is part of the deal I am going to investigate ECU options.
SumoGreg said:
ShiDevil said:
Are you sticking with the 3.43 (3.46) Diff? I had a chat with Dom about ratio's and he indicated the 4.3 benefits from a 3.43, rather than the 3.73 or the 3.91.
I spoke to Martin at Bespoke about it. They have done quite a few 4.3s from Power now and they thought that with the CR box the old diff suitably reconditioned should be OK. It hasn't been done yet so there is time to change my mind. Any advice from someone who has driven both would be much appreciated... 
Car is back, run in, tappets adjusted, winter tyres on, ready to roll, now just need some good winter weather... Had Geometry done and some spacers, almost like a different car now. The engine does not disappoint - still not giving it full beans, but it really has not lost desire to rev and driveability is soooo good. CR box less good for traffic though. Anyway on a pretty sh tty day it was a pleasure to drive.
Thanks to all for some good help and advice...time to drive some now
Thanks to all for some good help and advice...time to drive some now
Andy_mr2sc said:
Hi Greg
Glad to read your car is sorted. Apologies for not catching up. I've only used mine twice lately due to the weather. Had a gentle run out Sunday for the first time in weeks.
Must have a meet up in the new year over a beer.
Andy
Hi Andy,Glad to read your car is sorted. Apologies for not catching up. I've only used mine twice lately due to the weather. Had a gentle run out Sunday for the first time in weeks.
Must have a meet up in the new year over a beer.
Andy
Sounds like a plan! Not great weather for TVRs down at the coast right now, but I am going to take mine out anyway - New Years resolution to drive more. I also just got it back yesterday and not sure I can just look at it in the garage. Itchy feet will get the better of common sense.
Happy New Year to all here and good luck with great cars!
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