TR4 V8 build

TR4 V8 build

Author
Discussion

tinker-27

835 posts

193 months

Sunday 25th February 2018
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I don’t get the fuel system dig !! A lot of factory cars run pumps and filters under the car and it is tucked up out of the way , it’s how it’s done . Nowadays they are all in tank with one feed out but still goes under the car , and what system runs 110 psi ??? None I’ve ever seem 58 psi is modern LS , look under a golf gti , Sierra cosworth, tvr etc etc the list goes on you will see pump hanging under the floor , but hey what do they know ?? . Anyway bloody fantastic car a real credit to craig !!!!

Du1point8

21,319 posts

161 months

Sunday 25th February 2018
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Do you have any more details or a build site somewhere?

Anything in readers cars?

cwin

Original Poster:

944 posts

188 months

Sunday 25th February 2018
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Du1point8 said:
Do you have any more details or a build site somewhere?

Anything in readers cars?
Here you go,,,

https://www.pistonheads.com/gassing/topic.asp?h=0&...

Yertis

16,335 posts

235 months

Monday 26th February 2018
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tinker-27 said:
what system runs 110 psi ???
Lucas petrol injection.

tinker-27

835 posts

193 months

Monday 26th February 2018
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Am I right in thinking the Lucas system runs around 5 bar ? Which is very high but only from engine pump to injectors not from the tank like we are talking about ??

Edited by tinker-27 on Monday 26th February 20:06

//j17

3,721 posts

192 months

Tuesday 27th February 2018
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tinker-27 said:
Am I right in thinking the Lucas system runs around 5 bar ? Which is very high but only from engine pump to injectors not from the tank like we are talking about ??
Lucas PI is very high pressure from pump to injector - but the pump is usually electric and in the boot. The unit on the side of the engine is the distribution block that just connects the high pressure inlet to the appropriate injector outlet based on position in the 4 stroke cycle.

One of the main issues with Lucas PI is getting the pressure high-enough...using a Lucas windscreen wiper motor, something they only just managed fresh off the forecourt.

gareth_r

4,531 posts

206 months

Wednesday 11th July 2018
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Somebody turned this thread into a YouTube video (with acknowledgements).

https://youtu.be/Bbfzrj7dImw

cwin

Original Poster:

944 posts

188 months

Friday 13th July 2018
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gareth_r said:
Somebody turned this thread into a YouTube video (with acknowledgements).

https://youtu.be/Bbfzrj7dImw
Watched the video but didn't see any acknowledgement?
I built it...

gareth_r

4,531 posts

206 months

Friday 13th July 2018
quotequote all
cwin said:
gareth_r said:
Somebody turned this thread into a YouTube video (with acknowledgements).

https://youtu.be/Bbfzrj7dImw
Watched the video but didn't see any acknowledgement?
I built it...
In the YouTube description:
1966 Triumph TR4 LS3 Build Project
6.3l LS3 V8 crate engine and new Tr 6060 six speed gearbox
Builder: cwin (Craig Winstanley)
Build Thread: https://www.pistonheads.com/gassing/topic.asp?h=0&...
Please Check out and Subscribe to Builder's YouTube Channel to see this awesome project in action:
https://m.youtube.com/channel/UCF2vMrUT9nmecyrEW0T...

vearlytr6

40 posts

38 months

Tuesday 17th July 2018
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Hello,Just spotted your master-piece WOW! like the plain look and wheels.When I started reading I thought it was going to be a TR4. Again congratulations.Regards,Michael.(Australia).

Mikefury

8 posts

134 months

Monday 4th March 2019
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Anyone know of a TR4 with a V8 for sale?

I own a fairly stock 1967 TR4A IRS and was contemplating the V* conversion but find I can't wait

tapkaJohnD

1,627 posts

173 months

Monday 4th March 2019
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cwin,
Apologies for a delayed response - only saw your previous reply in Feb to my criticism (constructive, I hope!) today.

Very glad to hear that you have protected the fuel lines etc since the photograph - and intended to before I wrote! Fitting fuel handling parts where thye are vulnerable to road hazards (Ford Pinto, anyone?) has never seemd wise to me.

And thanks to those who explained Lucas Pi to those who didn't know about it. Triumph were the first to use fuel injection in a mass-market production car. Lucas Pi was used by Maserati and Ferrari in their limited productions, and by Jaguar and Ford for competition vehicles, so it wasn't the limp-wristed bodge that it is often seen as. But Triumph omitted to invest in training its dealers technicians in this world first. So doing the best they could on seeing it for the first time, they tuned it like a carburettor, and often lost the plot entirely, lin the process losing any reputation that Pi had.

This undeserved road to ill-repute wasn't repeated when VW brought in the much cruder Bosch K-Jetronic, also mechanical, but single point, continuous flow injection, based very much on CAV-Bosch diesel experience, which swept the board.

John

spitfire4v8

3,688 posts

150 months

Tuesday 19th March 2019
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Love threads like this! smile

Do people know about Neil brown's Stag engined TR5 (actually a imported TR250 with RHD conversion I think) ..

Makes just over 250hp on my dyno. The power is still climbing but drops off sharply with a misfire which Neil thinks might be valve bounce as it's built on std but used/old valve springs, it's nowhere near the limiter.

These projects are great.


spitfire4v8

3,688 posts

150 months

Tuesday 19th March 2019
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CTE

1,408 posts

209 months

Thursday 28th March 2019
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In a word...Fantastic!

Launedg

2 posts

6 months

Thursday 25th March
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Your car looks very nice. I did an LS3 build with a 73 TR6. It has an LS3/480 crate engine, T56, and 2010 Camaro rear end. Changed the rear suspension to upper/lower wish bone, and the front is redesigned using C4 corvette knuckles and steering rack. I widened the body to get everything to fit.

Launedg

2 posts

6 months

Thursday 25th March
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bmwmike

3,778 posts

77 months

Friday 9th July
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Beautiful cars, love these. Must be amazing with v8's biggrin

MCSV8

796 posts

232 months

Saturday 10th July
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spitfire4v8 said:
That's pretty impressive for a Stag V8. >100bhp over standard. Wow.

I wonder what my Stag would make of that, with standard brakes yikes