TVR 1972M Build Thread

TVR 1972M Build Thread

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Discussion

TiM3

Original Poster:

89 posts

223 months

Wednesday 9th January 2019
quotequote all
Lots of different thoughts on the best options for a diff....

Just out of interest, seeing as I'm building the car purely for road use what do people think to the idea of running an open diff?

I was concerned that with the increased power and relatively narrow tyres it might be a problem?

anonymous-user

53 months

Thursday 10th January 2019
quotequote all
the other tim said:
TVRMs said:
3.7 LSD (Salisbury) Ramp angles set for 900 kilo race car. No understeer, easy to drive, rear end not nervous at all.

Ramp angles were actually set up rather than only kidding.. smile
As you've owned/used both how did the modified Power-lock and Gripper compare?
Not driven the car with the gripper yet. The cars lost more weight so it will be interesting to see how the whole package feels. Should be able to feed back in 4-6 months smile

anonymous-user

53 months

Thursday 10th January 2019
quotequote all
TiM3 said:
Lots of different thoughts on the best options for a diff....

Just out of interest, seeing as I'm building the car purely for road use what do people think to the idea of running an open diff?

I was concerned that with the increased power and relatively narrow tyres it might be a problem?
Its a sports car and I'm sure it will be driven enthusiastically occasionally. Given your limited tyre choice (I finished up with 205s) I think I would want an LSD.

I think the 3.3 ratio is a good choice for a fairly stock 302 driven through a T5, assuming 15" wheels. smile

TiM3

Original Poster:

89 posts

223 months

Thursday 10th January 2019
quotequote all
TVRMs said:
TiM3 said:
Lots of different thoughts on the best options for a diff....

Just out of interest, seeing as I'm building the car purely for road use what do people think to the idea of running an open diff?

I was concerned that with the increased power and relatively narrow tyres it might be a problem?
Its a sports car and I'm sure it will be driven enthusiastically occasionally. Given your limited tyre choice (I finished up with 205s) I think I would want an LSD.

I think the 3.3 ratio is a good choice for a fairly stock 302 driven through a T5, assuming 15" wheels. smile
Thanks, pretty much what I was thinking but it's good to have it confirmed from somebody with experience. And yes standard bodywork and 15" wheels is the plan, I want the car to look close to stock externally.

TiM3

Original Poster:

89 posts

223 months

Sunday 27th January 2019
quotequote all
My chassis is finally ready! Hopefully will go and pick it up next weekend, feels like a bit of a turning point in the build. I've spent so much time working on individual components but nothing beats bolting bits actually back onto the car!







You'll notice I went for light grey in the end, I was going to stick with black but seeing as the originality ship had already sailed I just went for what I really wanted!

the other tim

136 posts

146 months

Monday 28th January 2019
quotequote all
Tim,
Any chance of a better picture of your gearbox mount, looking for ideas as I'm putting a t5 box in a Thurner (Vixen) chassis.

Thanks Tim

TiM3

Original Poster:

89 posts

223 months

Monday 28th January 2019
quotequote all
Do these help? the box is tilted about 5 degrees as that's how the Ford Racing bellhousing is et for some reason so the mounts aren't symmetrical. It's been designed so the mini crossmember is easy to remove should the box need dropping. Pick ups were laser cut from a CAD drawing in 3mm mild steel.




the other tim

136 posts

146 months

Monday 28th January 2019
quotequote all
Thanks Tim, that's very helpfull and pretty much as I was thinking. My bellhousing is the same as your's, I have a modern Griff box with the external linkage that moves the stick forwards but it also moves it to the right a little so hopefully that'll counteract the tilt.

TiM3

Original Poster:

89 posts

223 months

Tuesday 29th January 2019
quotequote all
the other tim said:
Thanks Tim, that's very helpfull and pretty much as I was thinking. My bellhousing is the same as your's, I have a modern Griff box with the external linkage that moves the stick forwards but it also moves it to the right a little so hopefully that'll counteract the tilt.
No problem, my box apparently came out of a Tuscan and has the forward located shifter without any external linkage if you know what I mean. I actually think it will end up further forward than the original. I was thinking of getting a Core Shifter in from the States as they do one that deals with the tilt.

TiM3

Original Poster:

89 posts

223 months

Monday 15th April 2019
quotequote all
A bit of an update, unfortunately progress is a lot slower than hoped for as I've had to placate the other half by doing some jobs on the house...

Got the chassis back home and generally happy with the job, it's a very light grey as opposed to white.

I've built up the rear wishbones and fitted the uprights and fitted the front wishbones. A combination of sourcing the right fixings, waiting for the platers etc. meant this took a while. But I'm happy with how it's starting to go together.







And I've now got most of the parts together to finish the front, including some aluminium hubs and uprated stub axles that seem to be nicely built.



However before I go much further I could do with sourcing shock absorbers, does anyone have any recommendations? Would like adjustable spring perches ideally and some damping adjustment seeing as the car will have different weight distribution to stock.

TiM3

Original Poster:

89 posts

223 months

Thursday 18th April 2019
quotequote all
I've been looking further into suspension... popular brands seem to be AVO and Gaz.

Have people had good experience with Nitron? These seem to be another option.

StewB_v6

77 posts

99 months

Thursday 18th April 2019
quotequote all
I think it is fair to say that Nitron stuff is in a different price category to the general AVO / GAZ offerings (I know they do offer higher spec options so there maybe some overlap within the respective ranges). I have a few friends who have used Nitron to very good effect. I've never had anything good enough to justify the expenditure!

Build looks very good by the way.

Stew.

the other tim

136 posts

146 months

Monday 22nd April 2019
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https://protechshocks.co.uk/ well worth a look.

Tim

TiM3

Original Poster:

89 posts

223 months

Tuesday 23rd April 2019
quotequote all
Thanks for that, they look well worth investigating, I notice Racetech list sets for M cars at pretty reasonable money.

Have you got or had cars with Protech stuff on?

the other tim

136 posts

146 months

Tuesday 23rd April 2019
quotequote all
I have a new sitting here for my car which is hatching slowly !!!!!!!, however have used them on a Gtm which is why I went for them again, I think Neil Russell has experience of them on a Tvr, hopefully he will chime in.

Tim

the other tim

136 posts

146 months

Wednesday 24th April 2019
quotequote all
the other tim said:
I have a new set sitting here for my car which is hatching slowly !!!!!!!, however have used them on a Gtm which is why I went for them again, I think Neil Russell has experience of them on a Tvr, hopefully he will chime in.

Tim

Dollyman1850

6,316 posts

249 months

Wednesday 24th April 2019
quotequote all
the other tim said:
I have a new sitting here for my car which is hatching slowly !!!!!!!, however have used them on a Gtm which is why I went for them again, I think Neil Russell has experience of them on a Tvr, hopefully he will chime in.

Tim
I like them. For a budget buy I have found them to be a good shock. I like the way the company listens to what you want and supplies what you need at a realistic price.... There are a few who will say they aren't as good as a ( insert name of posh shock here) but I think they are a good UK product at a good price smile You might also like to have a look at Quantums. smile

N.

TiM3

Original Poster:

89 posts

223 months

Wednesday 1st January 2020
quotequote all
I've not done an update in ages, proabably because things have been plodding along pretty slowly...

Anyway a few pics of the chassis build up, I bought some Protec shocks in the end and Fosseway four pot calipers for the front, the rest was just a simple case of refurbishing or replacing what was already there.











I've then spent some time getting the engine and transmission ready and finally fitting it over the last few days, I'll post some pictures shortly...

TiM3

Original Poster:

89 posts

223 months

Wednesday 1st January 2020
quotequote all
Getting my T5 box ready was a lot more hassle than I imagined. It came from a modern Tuscan and these have a different input shaft and bearing retainer to an American T5. This meant my bellhousing wasn't the right fit and clutch choice was more problematic. I decided to replace the lot with Mustang compatible parts so it opens up the choice of clutches etc.

This is the bits being fitted, I have all the part numbers if anyone is ever looking at doing anything similar.



Whilst trying to do a proper job, I also decided to check the bellhousing was centred so I could correct with offset pins, it was within tolerance on the Ford Performance bellhousing.



And finally all back together, I opted for a Ford Performance clutch kit, which is mildly uprated so should suit my slightly tuned motor.


TiM3

Original Poster:

89 posts

223 months

Wednesday 1st January 2020
quotequote all
Tight fit but it's in!