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TR6 TR6 aftermarket headers

Thank you for the kind words Bill,
Well, I topped up the gearbox and rear diff last night, the diff has a small leak so Ill be watching that. I was toying with the idea of fitting the Toyota LSD that can be adapted to fit via the kit from Goodparts, however the Original one is very quiet and seems to be in good condition apart from the little oil weep so im going to try and keep it as long as I can.
I recall years ago being told that the rear diff from a Triumph Dolomite 1850 automatic was the preferred diff for racing GT6's and TR6's because it was "Longer legged" and in most cases an LSD.
I think Ill investigate this further because I know where there is a scrap one lying rusting on the West Coast of Scotland where I come from, and ill bet the diff is in quite good shape.
I also looked over most of the bushings and bearing which have no movement with the exception of the sway bar end links and the front wheel bearings which have play in them, so thats next on the list.
Im also enjoying reading through all the different Triumph threads and the Technical pages as well, I find it very informative!!

Callum
 
Be sure to research that a bit more. The diffs for a TR6 and a GT6 are wholly different animals. Dolomites have solid rear axles, but the carrier looks like it could swap into a GT6 diff, but not a TR6.
 
swift6 said:
Be sure to research that a bit more. The diffs for a TR6 and a GT6 are wholly different animals. Dolomites have solid rear axles, but the carrier looks like it could swap into a GT6 diff, but not a TR6.
Perhaps the Dolly Sprint is different then?
I was just going to write that Ken at BFE has just brought in a load of limited slips to fit TR3-6, Stag, etc., and it seems that the TR3-4 (solid axle) unit is supposed to fit a Dolly Sprint as well:
https://www.tran-x.com/diffs/tr6.html

According to Ken, the only difference between the TR6 and TR4 version is that the latter has a button to take the thrust from the axles, which isn't needed for IRS. But he didn't know if that meant the solid axle version could be used with IRS or not.

I'll find out eventually, as I've got one of each on order; but not for several weeks yet. (Ken's got my units, but I won't be able to pick them up for awhile.)
 
Next time you get it up in the air, look to see if you can source the leak. Usually either the pinion shaft seal or the vent bleeder, ..Both relatively inexpensive repairs..
 
what is the wall thickness of the primary pipes? If the wall thickness is very thin, they will glow. Excess fuel in the pipes and timing can do it also. Check for exhaust valve leaks.
Are they stainless, if they are not and you have wrapped them, they are going to rot out in one year.
6-3-1 headers that are exactly equal length primaries have been proven to be much better for a tr6 than 6-2-1 headers-sorry about that.
Rob
 
Thanks Rob,
Yes the headers are 6-2-1, it was not until I had ordered them that I realized that I would have been better with 6-3-1.
Yes they are wrapped and yes they are not stainless. I don't quite follow you with that one, Ive wrapped many a set of mild steel headers that have lasted longer than a year, however if your prediction is correct then I wont really mind because it means that I can replace them with 6-3-1 headers!!!

Callum
 
swift6 said:
Be sure to research that a bit more. The diffs for a TR6 and a GT6 are wholly different animals. Dolomites have solid rear axles, but the carrier looks like it could swap into a GT6 diff, but not a TR6.

I asked the guy who told me this for clarification and he has just emailed me back stating that the dolomite 1850 automatic diff is for GT6's only.
 
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