Is the extra coolant tank advisable if engine upgraded?

Is the extra coolant tank advisable if engine upgraded?

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Discussion

sidpinup

998 posts

256 months

Friday 3rd October 2014
quotequote all
Hi Chris, no issues with standard cooling setup in the 4.3. I have a alloy rad but that's it. I had an issue once with the fans not kicking in due to corrosion on the sensor but easily sorted.

Cheers,

Ed

Sevenman

742 posts

193 months

Friday 3rd October 2014
quotequote all
chris watton said:
Someone did say that ceramic coating the cats wasn't a good idea - is that right?

Have to be careful, have £12k to play with, not £20k - I know I was charged a small fortune just to have the TB gaskets changed, while the TB's were off, so have to be very careful with the labour charges...
12k should cover at least 1/2 of it.

I have heard the same thing regarding cats but am not convinved. Either they cope with the exhaust gas temparatures, or they don't. It isn't going to get any hotter than the gas flowing through it, which most of the matrix will be at. I can't imagine the cooling effect from outside is significant other that at the edges.

Rather than get new cats as default, have the old ones inspected at the start of the work and then you can decide. If they are good, no reason to change.

It is still perfectly possible to melt cats on a stock engine as my Tamora has shown.

http://www.sevenman.co.uk/?p=543

chris watton

Original Poster:

22,477 posts

261 months

Friday 3rd October 2014
quotequote all
Hmm, I think I had better stick to the 4.3 upgrade, new silicon hoses and rad,, and engine mounts....

m4tti

5,427 posts

156 months

Friday 3rd October 2014
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Why don't you get power to do you an estimate with everything you could possibly want, then if it goes over prioritise the list and knock of the items with the lowest priority.

At the moment all your doing is guessing. You may find certain bits are just the part cost with the engine out.

Edited by m4tti on Friday 3rd October 15:33

Sevenman

742 posts

193 months

Friday 3rd October 2014
quotequote all
chris watton said:
Hmm, I think I had better stick to the 6.7 upgrade, new silicone hoses and rad, engine mounts, and polished everything....
and ECU with wideband Lamba and knock detection?

I had the rad and hoses done by Power. Seems to work well and wasn't too expensive (compared to property prices in Kensington).

glow worm

5,861 posts

228 months

Friday 3rd October 2014
quotequote all
Just got a simple solution to your problems.....

Sell yours and buy this

http://www.pistonheads.com/classifieds/used-cars/t...

I guess the colour is a bit boring jester

m4tti

5,427 posts

156 months

Friday 3rd October 2014
quotequote all
glow worm said:
Just got a simple solution to your problems.....

Sell yours and buy this

http://www.pistonheads.com/classifieds/used-cars/t...

I guess the colour is a bit boring jester
Wow 460bhp laugh

chris watton

Original Poster:

22,477 posts

261 months

Friday 3rd October 2014
quotequote all
hehe

As much as I love the look and the handling of the Sag, I would never own one - roof needs to come off - that's a big part of the fun for me...smile

Basil Brush

5,084 posts

264 months

Friday 3rd October 2014
quotequote all
m4tti said:
Basil when you say tune the sound are you talking in terms of the volume or pitch. I'd love to find someone who knew what they did to achieve this sound....

http://m.youtube.com/watch?v=75LyzP_PFjI

It's side exit, but they're must be more going on with the exhaust pulse.
Both really. I messed about with can size and amount of open perforations as I hate the raspy sound from decat and fully sleeved cans.

PetrolHeadPete

743 posts

190 months

Monday 6th October 2014
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chris watton said:
Are they as good as OEM though? I worry when buying stuff from EBay, especially something that could bork the engine if it fails...
Can't imagine there are many companies making them to fit Tuscan...so could well be identical to the so called OEM ones (guessing). Unless of course they were donored from another car but I didn't find any x-ref so I suspect they are bespoke for TVR ? To my eye, they are every bit as good the originals that came off. They were covered with the usual "EU" type paper stickers you get on new exhaust pipes, with approvals ratings, part codes etc. Looked pretty pukka to me. And they work fine (passed emissions no prob). Honeycomb mesh looks good and solid and interestingly is deliberately spaced away from the steel side-walls so suspect they run a little cooler on the outside...maybe

Or as John says, just take-em out smile

glow worm

5,861 posts

228 months

Monday 6th October 2014
quotequote all
chris watton said:
Someone did say that ceramic coating the cats wasn't a good idea - is that right?

Have to be careful, have £12k to play with, not £20k - I know I was charged a small fortune just to have the TB gaskets changed, while the TB's were off, so have to be very careful with the labour charges...
Dom will only warranty his rebuild with his approved Cats or none.

chris watton

Original Poster:

22,477 posts

261 months

Monday 6th October 2014
quotequote all
glow worm said:
chris watton said:
Someone did say that ceramic coating the cats wasn't a good idea - is that right?

Have to be careful, have £12k to play with, not £20k - I know I was charged a small fortune just to have the TB gaskets changed, while the TB's were off, so have to be very careful with the labour charges...
Dom will only warranty his rebuild with his approved Cats or none.
Cheers - I didn't know that.

So, if I wanted to have the cats changed (or they needed changing after inspection), I would have to buy Dom's stock, rather than the £600 per pair OEM from HHC?

It is increasingly looking like I will have the upgrade, rad and hoses and nothing more - but I will email Dom nearer the time to ask for a complete price breakdown of what I want.

For me, I figured the important upgrades to go with the engine will be coolant system and ensuring cats and lambdas are in tip-top condition.

As my clutch seems perfectly fine, I may even not have that changed, but buy the clutch, flywheel and slave cylinder kit afterwards, along with new speed transducer, and have them fitted at David Geralds, and while the gearbox is out, get Readman Racing to pick it up and upgrade it to CR - about £3-3.5k in all. But I could have this done later.

I am now assuming the extra coolant tank isn't really needed....




Edited by chris watton on Monday 6th October 09:44

PetrolHeadPete

743 posts

190 months

Monday 6th October 2014
quotequote all
glow worm said:
Dom will only warranty his rebuild with his approved Cats or none.
I can see why he'd insist on that...for several reasons wink

m4tti

5,427 posts

156 months

Monday 6th October 2014
quotequote all
PetrolHeadPete said:
I can see why he'd insist on that...for several reasons wink
600 shiny goldish coloured reasons hehe

billynobrakes

2,675 posts

266 months

Monday 6th October 2014
quotequote all
Chris

Why don't you email , Dom now and ask him what he recommends based on your budget, he does know what he is talking about

Don't forget you get a warranty


chris watton

Original Poster:

22,477 posts

261 months

Monday 6th October 2014
quotequote all
billynobrakes said:
Chris

Why don't you email , Dom now and ask him what he recommends based on your budget, he does know what he is talking about

Don't forget you get a warranty
I will - I just wanted to know anyone's experiences and costs of adding the extra expansion tank (initially..).

From what I gather, it's not too necessary.

Will certainly ask Dom's advice regarding cats, though..

billynobrakes

2,675 posts

266 months

Monday 6th October 2014
quotequote all
I would not worry too much about extra expansion tank, Dom has designed his engines too destruction, that's why he offers such a good warranty

The problem posting on here is there will be people with their own ideas, which is fair enough but you need to speak direct to Dom, as I said tell him your budget

Don,t forget the price of the 4.3 does not include large injectors and heavy duty starter motor which is about £1000 so that takes it to about £9500 plus you need to allow for unforeseen things, you might need a new clutch etc so allow another £1000 that takes it up to £10,500, I would put new silicon hoses with fitting is about £350, so your £12,000 budget is getting near, have you factored in the 1000 mile service after it has been run in which is about another £500


chris watton

Original Poster:

22,477 posts

261 months

Monday 6th October 2014
quotequote all
billynobrakes said:
I would not worry too much about extra expansion tank, Dom has designed his engines too destruction, that's why he offers such a good warranty

The problem posting on here is there will be people with their own ideas, which is fair enough but you need to speak direct to Dom, as I said tell him your budget

Don,t forget the price of the 4.3 does not include large injectors and heavy duty starter motor which is about £1000 so that takes it to about £9500 plus you need to allow for unforeseen things, you might need a new clutch etc so allow another £1000 that takes it up to £10,500, I would put new silicon hoses with fitting is about £350, so your £12,000 budget is getting near, have you factored in the 1000 mile service after it has been run in which is about another £500
Cheers, I know the basic upgrade is just over £9.3k (including the starter and injectors). I am not too bothered about the clutch for now, as I plan to have the gearbox refurbed and CR gears added anyway - so it's gonna come out again at some point. I will order the SS pipes, silicon hoses from ACT, and the rad from here:

http://www.aaronradiator.co.uk/catalog/TVR_radiato...

So all I'll need extra from Dom are engine mounts (which I assume will need changing) and perhaps new connectors on the rad fans. That's the plan, anyway.

billynobrakes

2,675 posts

266 months

Monday 6th October 2014
quotequote all
How old is your clutch ?

Chris

Trust me on this, once Dom takes your engine out to upgrade it there will be things that need doing to coup with the extra power and some things that have worn out

No point in getting a big engine put in and spend all that money then a week later something brakes and it's back with Dom

chris watton

Original Poster:

22,477 posts

261 months

Monday 6th October 2014
quotequote all
billynobrakes said:
How old is your clutch ?

Chris

Trust me on this, once Dom takes your engine out to upgrade it there will be things that need doing to coup with the extra power and some things that have worn out

No point in getting a big engine put in and spend all that money then a week later something brakes and it's back with Dom
I don't know how old the current clutch is, to be honest - but I figured that, if I have the 4.3 done in around December time, as I understand it, there is then a 1000 mile run-in period where you can't go above 3k rpm (is that right)?

Over the Winder months, I will not cover that run-in mileage, so am assuming it would be perhaps March before I have the service - and by that time, I'll have more than enough savings to cover remaining upgrades, like gearbox, clutch (if not done before), new tyres (40's on the front) and finally, the icing on the cake, a full geo set-up to help sort my new crappy Nitrons.

That's the plan, anyway - and barring me being out of a job in the meantime, I'll stick to it..