Discussion
BTR as supplied by Adrian at Central TVR about 8 years ago.
Part of a batch that went out to the Malaysian operation many years ago but never used and eventually brought back to the U.K.
still had its original packing oil.
I assume the warm climate helped keep it in perfect condition.
I spent many years upgrading everything I could to keep shunting at low revs at bay then got involved in some drag racing with persuasive TVR mates which then caused a slight whine in my original Dif and took advantage of the few new ones still available.
It was a revelation to be honest.
One of those eureka moments in life.
Even after all I’d done to the car it would still shunt at around 1700 revs if provoked but only very slightly until the new Dif completely eradicated it.
Only with the new Dif did I realise the shunt mainly came from the Dif area and had done all along.
I realised my original Dif was sloppy and loose which I put down to years of being subjected to poor performance from the fuelling/ ignition big cam effect and inevitable wear from the power/ torque the car possessed.
I carried on using the car until 2020 with the new Dif but only put on around 3000 miles in that time then took the car off the road for a complete chassis rebuild and the cars been in storage pretty much since until September of this year when I finally recommissioned it to go back on the road.
This Dif I treat like gold dust and it’s never been used with aggression as it’s made the car feel brand new.
I think the pinion gears once warn will never be able to replicate what a new one feels like though they can be rebuilt and pre load set to get close but consider the new Dif the greatest thing about the car in many ways.
I just wish you could still buy new ones as it would improve most peoples cars smoothness immensely.
If shunt is a problem it’s likely the Dif will be half the problem.
Part of a batch that went out to the Malaysian operation many years ago but never used and eventually brought back to the U.K.
still had its original packing oil.
I assume the warm climate helped keep it in perfect condition.
I spent many years upgrading everything I could to keep shunting at low revs at bay then got involved in some drag racing with persuasive TVR mates which then caused a slight whine in my original Dif and took advantage of the few new ones still available.
It was a revelation to be honest.
One of those eureka moments in life.
Even after all I’d done to the car it would still shunt at around 1700 revs if provoked but only very slightly until the new Dif completely eradicated it.
Only with the new Dif did I realise the shunt mainly came from the Dif area and had done all along.
I realised my original Dif was sloppy and loose which I put down to years of being subjected to poor performance from the fuelling/ ignition big cam effect and inevitable wear from the power/ torque the car possessed.
I carried on using the car until 2020 with the new Dif but only put on around 3000 miles in that time then took the car off the road for a complete chassis rebuild and the cars been in storage pretty much since until September of this year when I finally recommissioned it to go back on the road.
This Dif I treat like gold dust and it’s never been used with aggression as it’s made the car feel brand new.
I think the pinion gears once warn will never be able to replicate what a new one feels like though they can be rebuilt and pre load set to get close but consider the new Dif the greatest thing about the car in many ways.
I just wish you could still buy new ones as it would improve most peoples cars smoothness immensely.
If shunt is a problem it’s likely the Dif will be half the problem.
Lucky man, clearly none of those are available any more.
I'll just carry on with my Fiesta ST150 callipers - just fully stripped them down and put them in for blasting and powder coating, all ready for the rebuild kits I have bought. Coupling them with M-Tech Sierra Cossy 283mm discs - all easily fits beneath my 15" fronts.
Looking forward to getting that task finished up!
I'll just carry on with my Fiesta ST150 callipers - just fully stripped them down and put them in for blasting and powder coating, all ready for the rebuild kits I have bought. Coupling them with M-Tech Sierra Cossy 283mm discs - all easily fits beneath my 15" fronts.
Looking forward to getting that task finished up!
PabloGee said:
Lucky man, clearly none of those are available any more.
I'll just carry on with my Fiesta ST150 callipers - just fully stripped them down and put them in for blasting and powder coating, all ready for the rebuild kits I have bought. Coupling them with M-Tech Sierra Cossy 283mm discs - all easily fits beneath my 15" fronts.
Looking forward to getting that task finished up!
For most applications the Fiesta ones are probably just as good. I'll just carry on with my Fiesta ST150 callipers - just fully stripped them down and put them in for blasting and powder coating, all ready for the rebuild kits I have bought. Coupling them with M-Tech Sierra Cossy 283mm discs - all easily fits beneath my 15" fronts.
Looking forward to getting that task finished up!
Yeah, I remember being miffed I wrecked my Dif but very lucky it happened when these new old stock Difs came available. Best £1000 I ever spent on the car little did I know until the drive home after install. It made a bigger difference than the new ecu I’d had but the combination of both really is a treat.
Gearbox takes longer to get hot too. Something you often feel through the gear knob but I can drive for hours and barely any heat.
I can only assume the transmission slack from the Dif puts quite a lot of pressure on the gearbox when going on/off throttle, gear changes and acceleration/ de acceleration. I’ve always had a good gearbox so now replace the oils in both these components whenever I change the engine oil. Roughly every 4000 miles. If it makes both last, well worth the few quid it costs.
Nice work. I can appreciate the effort.
I initially stripped, degreased and painted my callipers, but the so-called calliper paint was total cr@p, it wouldn't cure and I could pick it off with a fingernail.
So I then stripped again, and went for some VHT paint from Halfords, followed by some UHT clear lacquer, but that all bubbled up in the curing process (in the oven for 30mins).
Strip again. Then a lot of effort with wire brush drill attachments to thoroughly get it to absolute bare metal.
Then I used some etch primer and 2k spray paint (proper mask required for that stuff), which also just chipped off with a thumb nail.
I think the callipers had some sort of original finish that the paint wouldn't stick to, so I stopped banging my head against a wall and handed it to a wheel refurbishment outfit with blasting kit and powder coating facilities - they showed me some callipers they had done, and it looks promising.
Really looking forward to being able to finish this job!
I initially stripped, degreased and painted my callipers, but the so-called calliper paint was total cr@p, it wouldn't cure and I could pick it off with a fingernail.
So I then stripped again, and went for some VHT paint from Halfords, followed by some UHT clear lacquer, but that all bubbled up in the curing process (in the oven for 30mins).
Strip again. Then a lot of effort with wire brush drill attachments to thoroughly get it to absolute bare metal.
Then I used some etch primer and 2k spray paint (proper mask required for that stuff), which also just chipped off with a thumb nail.
I think the callipers had some sort of original finish that the paint wouldn't stick to, so I stopped banging my head against a wall and handed it to a wheel refurbishment outfit with blasting kit and powder coating facilities - they showed me some callipers they had done, and it looks promising.
Really looking forward to being able to finish this job!
Yeah they look mint.
Seeing them powder coated makes me think mine must be too.
I’ve had them on the car almost exactly 9 years now and the finish is still just like when I purchased them so yours should not need any real maintenance for years.
I suppose because they came off a production car they were designed to be relatively maintenance free compared to other performance type brakes,
Job done.
Seeing them powder coated makes me think mine must be too.
I’ve had them on the car almost exactly 9 years now and the finish is still just like when I purchased them so yours should not need any real maintenance for years.
I suppose because they came off a production car they were designed to be relatively maintenance free compared to other performance type brakes,
Job done.
It would, and I did have that thought. Was just being a bit lazy.
I'll give it its own spot...
Fiesta ST150 brake upgrade write up - under 15" rims:
https://www.pistonheads.com/gassing/topic.asp?h=0&...
I'll give it its own spot...
Fiesta ST150 brake upgrade write up - under 15" rims:
https://www.pistonheads.com/gassing/topic.asp?h=0&...
Edited by PabloGee on Monday 10th February 13:53
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