Inside the Triumph TR6's Ingenious F1 Fuel Injection System | Tyrrell's Classic Workshop

You know a channel is great when it features rare Lambos and Ferraris and RRs but people in the comments will lust over a TR6 or a Renault Gordini. Car guys are a different breed.

I love how Iain once again gives the viewer a nod and a wink into the nuanced engineering for all cars that visit his garage. His knowledge is impressive no matter the brand or range. But you viewers already knew that...and it's why we watch another thirty minutes or so of zen.

I have an early 69 PI with overdrive that snuck into Canada. Restored it in 1989. Fitted a Bosch fuel pump and it has run reliably for 35 years with proper care. Own Porsche's and Ferrari but will never sell the TR-6...

The colour is gorgeous, which really suits the lines of the car, and also looks great of the Stag.

My late Dad used to tune these for a living "Triumph Tune". He loved the Pi system and was one of the few people in the UK in the 70's and 80's who could actually set them up correctly. Our main family car right up to the mid 80's was a Mk1 2500 Pi Saloon. The head and the ITB's were all ported and polished. I believe it made 170bhp approx.

As a Benz mechanic it was assumed I could work on anything from across the pond. Got one of these in the late 80s into the shop. Being Bosch certified I was under the misapprehension I knew everything injection. Got a lesson on this one. The valve is very much like American gas range valves. Aside from its multiple layers it is essentially the same. After that it was easy peasy as you Brits say. The car was a TR7 wedgy I believe. Edit: As for Lucas bits I'll say this. If your grounds are well done, and you keep things clean, most of it is serviceable

Great to see a humble TR6 in the workshop, what a lovely example this one is. As always Iain’s explanation of (as he would say) the nerdy stuff, was excellent and very informative. There’s never a dull moment on a Tyrrell’s Classic Workshop video!

I had a 1970 2.5PI saloon in 1978. The car had belonged to my father, who had bought it from my uncle, who had bought it new. My uncle was an engineer by trade, working on all his own vehicles. To this end, he had acquired the official A4 'ring binder' workshop manual. This manual contained a 'pearl of wisdom', which allowed me to diagnose a fault in the fuel injection system in seconds. I forget the exact words, but the manual suggested that, on suspicion of a fuel fault causing a misfire, one should: With the engine at tickover, firmly grasp each individual injector pipe in turn, where a distinct series of 'pulses' should be felt in the lines. If the 'pulse' was absent, then suspect the 'poppet valve spring' in the associated injector nozzle to be faulty. Just thought I would pass that little snippet on, as it may be of help to somebody in the future.

I had a 2.5 PI saloon which served me as a high speed commuter from Leeds to Darlington in '73-'74. The weak point was said to be the HP fuel pump, but luckily I never had a problem. These were used as police cars. Got stopped once doing 100+ on the A1 and got off with a friendly warning.

I'm Across the pond here in Canada and have been driving and restoring TR's for 38 years. I love your perfection and quality as well as your ability to use your ears. Well done!

The Laycock overdrive system is simply devine equating to a 6 speed gearbox, 3rd, 3rd o/d, 4th, 4th o/d. When changing down a quick blip of the throttle as you flick the o/d switch and you get a seamless gear change. Fantastic.

Finally something positive about British engineering. How wonderful.

British 6 cylinders do have a wonderful note, also this purple is so wrong yet like the mustard yellow, is a great colour, stunning car and great history.

Erm, speaking of British engineering...I think this is the only car channel on YouTube that could post an 30+ minute in-depth video about a mid-70's BL car...without making any mention whatsoever of that incredible pre-Rolls-Royce Bentley casually lingering in the background...

Coming from the other side of the Pond, Triumphs were always exotic to me. I would love to own one, much like I was thrilled when I bought an MG (Midget) back in the 90's. They are what I think of with the quintessential British sports car, small and fast. I love the colour of this one as it really stands out. Thank you again and thank Paul for letting you show it on the channel.

Thank you for this rare opportunity to see and learn about this wonderful TR6 and its Lucas fuel injection. My father's 1968 Volvo 1800s had a lovely overdrive switch that illuminated a red dashboard light .Unfortunately it stopped working when he needed it most while driving it through the Canadian Rockies in 1975!

So pleased you highlighted a beautiful TR6! The first car I bought after graduation in 1980 and starting full time work was a 1976 TR6 in Periwinkle Blue. I loved that car despite it's rust and quirks. So much fun and all the comments one could ever want from strangers on the street. Sold when I got married but my wife still remembers our dates when she would give me a push to jump start the car when the started got hot. Good times!

Lovely in Magenta! In 2006, I bought a 1969 mk2 Triumph 2000 saloon. Most people who saw it threw their hands up in horror assuming it had the PI injection system whereas in fact it had carburettors. From getting to know a few people with 2.5 PI cars, In reality the PI system worked really well and was pretty simple if you took the time to understand how it worked.

Love that you shared this TR6. On my daily bus ride to school as a child once or twice per week a TR6 would overtake and pass the bus on a wild stretch of "Breakneck Rd" and the sound was glorious and obviously instilled lasting memories. 😊

The most fun I've ever had driving was when I was able to swap cars for a weekend with a friend's 1972 Lotus Elan. I'd had the chance for an odd drive in Triumphs and MGB's, but the Elan was in a class by itself. There are few modern comparisons for these mid 20th century British 2- seaters, for sheer driver pleasure. At least not for the money they cost new. 700hp and driving aids really can't compete for driver engagement in a light car designed to make best use of under 200hp.