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Jul 19, 2019 22:43:15 GMT
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Havent had mine out for a month or more, all this talk has reminded me how long it's been Ive decided there will be a slightly tatty blue V8 rumbling around essex next week!
Ref earlier comment the battery pretty much has to go in the boot, I fitted a cut out switch in the battery position, and used this to link all the original cables to the new battery feed. Its pretty easy to get a large cable to the boot, make an extra hole in the original harness grommet, take it down the front of the footwell along the bottom of the sill then over the rear wheelarch into the boot, I also fitted a fused earth cable in case of accident( from a transit).
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Jul 20, 2019 10:17:52 GMT
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no but step fathers stag did .. and i preferred that too. not saying a tr8 is something i wouldnt drive though. :-)
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'80 s1 924 turbo..hibernating '80 golf gli cabriolet...doing impression of a skip '97 pug 106 commuter...continuing cheapness making me smile!
firm believer in the k.i.s.s and f.i.s.h principles.
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Rob M
Posted a lot
Posts: 1,915
Club RR Member Number: 41
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1980 Triumph TR7Rob M
@zeb
Club Retro Rides Member 41
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Jul 20, 2019 14:50:27 GMT
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no but step fathers stag did .. and i preferred that too. not saying a tr8 is something i wouldnt drive though. :-) It could have been oh so different if BL had actually mass produced the TR8 as the natural successor to the TR6.
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Jul 20, 2019 19:50:27 GMT
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a trick was certainly missed...
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'80 s1 924 turbo..hibernating '80 golf gli cabriolet...doing impression of a skip '97 pug 106 commuter...continuing cheapness making me smile!
firm believer in the k.i.s.s and f.i.s.h principles.
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Jul 20, 2019 20:18:40 GMT
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It was a typical 70s bl balls up, the body is pretty innovative for the time and the concept was as good as anything the germans or japanese were producing at the time but they screwed it up using parts which weren't up to the job (marina gearboxes and axles) used a asthmatic rough engine when they had both the dolomite sprint and RV8 available then didn't iron out all the niggles before launching it. Finally they gave it to a plant who weren't really interested in producing it and where the relations with the workforce were diabolical (to a large part caused by years of inept management and political interference ). The later ones where much better, they fitted the sd1 derived axles and gearboxes, sorted out most of the minor gremlins and at least made the engine a bit more reliable. I have had mine 25 years and 100,000 miles, after 3 4 pots ( the last one I bought as a stop gap was actually the best one which I sold for what I had paid) I fitted the V8 10 years ago which transformed the car, making all he brackets etc as I went. Its even still on the 2.0 radiator and never gets warm.
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Last Edit: Jul 20, 2019 20:20:29 GMT by kevins
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Jul 20, 2019 20:41:05 GMT
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Haven't heard of anyone doing a V8 conversion on a TR7 in years!! As for the comment about wheels, the issue with 13" wheels is that they are hard to come by and tyres with the correct speed rating are even harder to come by and are quite expensive. Consquently, quite often you will TR7s fitted with modern wheels from either Maestro/Montego or MGF which use 15" or 16". Good luck finding the SD1 diff ratio, and don't forget the matching speedo drive gear !
Have fun and enjoy!
Have bookmarked.
Adrian.
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SamV8
South West
Posts: 90
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Jul 20, 2019 21:18:12 GMT
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Haven't heard of anyone doing a V8 conversion on a TR7 in years!! As for the comment about wheels, the issue with 13" wheels is that they are hard to come by and tyres with the correct speed rating are even harder to come by and are quite expensive. Consquently, quite often you will TR7s fitted with modern wheels from either Maestro/Montego or MGF which use 15" or 16". Good luck finding the SD1 diff ratio, and don't forget the matching speedo drive gear ! Have fun and enjoy! Have bookmarked. Adrian. I think the wheels that came with it are mgf wheels but not keen on them myself, was looking at 15s to go on there due to the tyre situation but these will do for now until the new year when bigger plans start to take shape
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Jul 20, 2019 21:18:27 GMT
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Rimmers still list the cwp for around £300 inc vat. I have a 3.45 on mine which is also a tr7 auto ratio, it seems about right to me. Mine has 15" wheels as well though.
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SamV8
South West
Posts: 90
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Jul 20, 2019 21:29:28 GMT
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I actually got to do some work on it today, removing the awful carpet (which looks like normal house carpet) and seats which are in dire need of repair, though I may put some bucket seats in the car instead this is what happened the carpet 😄 with the carpet removed and some further investigation we found the connection for the lights and a remote to change the colour here is the 'disco mode' 😄 imgur.com/a/lPJHce9then in the boot after removing more of the house carpet I discovered that the spare wheel well has been covered over (badly) as well as wires dangling about also discovered some bodged repairs, these holes were covered by mastic and finally for tonight's post, the v8 is in the engine bay
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Last Edit: Jul 20, 2019 21:35:49 GMT by SamV8
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Jul 20, 2019 22:24:01 GMT
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Okay, lets talk diff ratios. From memory the stock TR7 uses 3.9, auto 3.45. For road use, most people use the 3.08 diff from a Rover 2600 auto or 3500 which gives good acceleration and top speed. Alternatively there is the 2.88 which gives less acceration but more relaxed cruising speed. Depends what you are after really.
Have fun. Adrian.
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Jul 21, 2019 20:22:22 GMT
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Okay, lets talk diff ratios. From memory the stock TR7 uses 3.9, auto 3.45. For road use, most people use the 3.08 diff from a Rover 2600 auto or 3500 which gives good acceleration and top speed. Alternatively there is the 2.88 which gives less acceration but more relaxed cruising speed. Depends what you are after really. Have fun. Adrian. The 3.08 might give the best vmax and fuel economy and makes them a bit of a G T but it won't give the best accelerstion, the 3.9 will do that, the 3.45 is a good compromise. Got mine out today forgot how much fun it is.
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Last Edit: Jul 21, 2019 20:32:14 GMT by kevins
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SamV8
South West
Posts: 90
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Jul 23, 2019 14:03:27 GMT
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Here's the moment you've all been waiting for
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Jul 23, 2019 15:48:20 GMT
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Neat I do love a TR7. There's one with a V8 in BL works livery that I see over the Ashdown Forest every now and again. Awesome looking thing. I've always thought they're a car that doesn't look great in standard form, but with just a little tweaking really shines. Beefier wheels and/or arches seems to be the key. As for missed opportunities, the TR7's main flaw wasn't really anything to do with the mechanical spec or looks or anything like that. People tend to compare it to the full-fat early PI TR6 (which was 150 gross bhp, 141 net) and find it comes up short. They forget that the car it replaced was actually making 124bhp (net). And even that was the hotter European version. The Americans (who the TR7 was targeted toward as they were one of the few countries where sports cars were still a growth segment) had been getting by with a wheezy carbed version that coughed out 106bhp (net) at the best of times. Next to that, the 105bhp TR7 seems pretty reasonable. I think I remember reading a statistic that they sold more TR7s than any other TR combined, but don't quote me on that yet. No, it was timing that put paid to the TR7. Released right before the death of Triumph meaning there were already conversations going on about Triumph's future. The planned 16v and V8 versions either didn't get out of the starting blocks at all, or barely made it before the shutters came down. A more widespread factory V8 version would probably have done wonders for the TR's image. Realistically it probably would have gone from 'ugly and slow' to 'ugly, but a bit of a bruiser for the late 70s'. Still, its public perception keeps the prices around the range I can afford so I shouldn't witter on too much Looking forward to seeing this one come together
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Last Edit: Jul 23, 2019 15:49:59 GMT by biturbo228
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SamV8
South West
Posts: 90
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Jul 23, 2019 16:36:30 GMT
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still have a few things left to do before it's on the road, got some electrical gremlins with the lights that aren't currently working, no dash lights and will be picking up some bucket seats tomorrow night
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SamV8
South West
Posts: 90
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Jul 24, 2019 20:31:04 GMT
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picked up the bucket seats tonight, £50 for the pair which seems like a bargain considering they are in great condition, never heard of mamba seats before but they'll do to get the car on the road asap whilst I keep an eye out for some better ones
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andyf
South West
Posts: 415
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Jul 25, 2019 12:08:23 GMT
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Probably too late now you`ve bought replacements but the standard TR7 seats with new foam and covers are surprisingly comfortable!
Looking and sounding good - always fancied putting a V8 in mine but never got round to it.
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Last Edit: Jul 25, 2019 12:10:57 GMT by andyf
1980 Triumph TR7.
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SamV8
South West
Posts: 90
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Jul 25, 2019 13:44:20 GMT
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Probably too late now you`ve bought replacements but the standard TR7 seats with new foam and covers are surprisingly comfortable! Looking and sounding good - always fancied putting a V8 in mine but never got round to it. I've still got them lying around the workshop, do you know where to source new foam and covers?
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Jul 25, 2019 13:59:11 GMT
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"I've still got them lying around the workshop, do you know where to source new foam and covers?" www.rimmerbros.com
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Last Edit: Jul 25, 2019 14:03:19 GMT by westbay
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Jul 25, 2019 14:24:29 GMT
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Robsport sell it all as well.
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andyf
South West
Posts: 415
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Jul 26, 2019 11:21:21 GMT
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S&S preparations are my go to people, but any of the above.
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1980 Triumph TR7.
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