Peugeot 406 Coupe - 3.0L V6. Complete refurb... very slowly

Peugeot 406 Coupe - 3.0L V6. Complete refurb... very slowly

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Discussion

happygoron

424 posts

190 months

Tuesday 21st February 2023
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Nothing to add, just wanted to say how much I've enjoyed following your projects over the years from the buggy to this, think I first saw your handiwork on 205gridrivers??

Sorry to hear about the eye injury, hope you've made a full recovery. Looking forward to many more updates on various French beauties.

PhillipM

Original Poster:

6,524 posts

190 months

Tuesday 21st February 2023
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TGCOTF-dewey said:
I saw you'd had issues with your eye in the buggy thread... Hadn't realised it was so bad. Glad it's sorted.

Your previous job does explain how you're able to build stuff like the buggy. Good luck with the job hunting!
I mean even then I was self employed, most of my stuff is self taught to be fair. Explains why I can't get a new bloody job biggrin

PhillipM

Original Poster:

6,524 posts

190 months

Tuesday 21st February 2023
quotequote all
happygoron said:
Nothing to add, just wanted to say how much I've enjoyed following your projects over the years from the buggy to this, think I first saw your handiwork on 205gridrivers??

Sorry to hear about the eye injury, hope you've made a full recovery. Looking forward to many more updates on various French beauties.
Yes, and the old PSOOC. I think the next thread will probably be on some Japanese tin though. I inherited an MX-5 that's having some welding and a complete suspension refresh shortly.
Although I do still have my old mans 405 Mi16x4 to rebuild but it's been rotting under a sheet and not even started. That ones a long time and a lot of money away.

shalmaneser

5,936 posts

196 months

Tuesday 21st February 2023
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happygoron said:
Nothing to add, just wanted to say how much I've enjoyed following your projects over the years from the buggy to this, think I first saw your handiwork on 205gridrivers??

Sorry to hear about the eye injury, hope you've made a full recovery. Looking forward to many more updates on various French beauties.
Plenty of 205gtidrivers alumni on PH!

PhillipM

Original Poster:

6,524 posts

190 months

Saturday 19th August 2023
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Okay I know I haven't updated this thread any, been a bit busy biggrin

However, just because I have a shiny new part today I needed to share...




carinaman

21,326 posts

173 months

Sunday 20th August 2023
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Shiny indeed. Losing that middle box coudl lead to an interior droning?

PhillipM

Original Poster:

6,524 posts

190 months

Sunday 20th August 2023
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It's actually fine, but then the cat right in front of that box is *massive*

carinaman

21,326 posts

173 months

Sunday 20th August 2023
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That's good it's not spoilt the interior noise levels.

Edited by carinaman on Sunday 20th August 14:46

PhillipM

Original Poster:

6,524 posts

190 months

Sunday 20th August 2023
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Yes, I was happily surprised, I did leave a nice long straight section with room above it out of the cat just in case I needed to add a midbox later on, but I think it might be okay.

Still have to fit a pair of nice rolled exhaust tips but I'm letting it settle in first.

Cambs_Stuart

2,880 posts

85 months

Sunday 20th August 2023
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Shiny bits always help. How has the coupe been going?

PhillipM

Original Poster:

6,524 posts

190 months

Sunday 20th August 2023
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Chasing down the usual electric gremlins from a german electrical system in a french car put together by italians, but mechanically she's been rock solid.

Debating making some tubular wishbones right now as the poly bushes are getting ready for a rebuild anyway...

Edited by PhillipM on Sunday 20th August 14:20

nismo48

3,722 posts

208 months

Sunday 20th August 2023
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Lovely car and design. Will always in my opinion look elegant and just perfect.
A V6 manual in my garage one day wink

PhillipM

Original Poster:

6,524 posts

190 months

Monday 21st August 2023
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I may put a small expansion chamber in the middle yet just to quieten it a little further, although it's pretty much silent when cruising so I'll see how it goes first.
I don't think it's too bad for being made on the floor/road around the UK rainstorms this week biggrin

Mr Tidy

22,408 posts

128 months

Monday 21st August 2023
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That sounds great. thumbup

Enough volume so you know it is a V6 and if it doesn't drone at a cruise I think I'd leave it as it is!

PhillipM

Original Poster:

6,524 posts

190 months

Monday 21st August 2023
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It's quiet compared to what a lot of aftermarkets sound like I guess - I just like induction noise more than exhaust so I don't want it much more than a bit of background interest hehe

PhillipM

Original Poster:

6,524 posts

190 months

Monday 21st August 2023
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Actually speaking of induction noise... I also gave her a nice cold air feed instead of the terrible OEM knitted sock that falls apart and strangles the things... we'll not mention it being from a Volvo. Performance upgrades from a Volvo feels wrong, somehow...


carinaman

21,326 posts

173 months

Monday 21st August 2023
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Sounds good and not obnoxiously loud from that video.

PhillipM

Original Poster:

6,524 posts

190 months

Thursday 21st September 2023
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Was up near the dyno guy the other day so felt it'd be rude not to slap the car on quickly while he cleaned me some injectors biggrin

Last time it was at that dyno it made 212bhp (with the backbox knocked straight through, cam timing advanced, bit of porting work to the inlet manifold/throttle and a foam cone filter on it).
This time around with the new air intake, new 2.5" exhaust system, the lightweight flywheel and a little tickle on the crank sensor to get a tiny bit more ignition advance it made 232bhp, so pretty happy with that.
It definately feels like it could take more timing though, gonna have to work out how to make something to adjust it better....

It made most of the gains up top in the last 1000rpm so it's not really much of a difference on the road, but it's basically gained a bit everywhere, filled in half of the torque dip these have at 3k and the car feels so much faster to rev when you blip down through the gearbox.

That's kinda surprising as there's not much flow just blipping the throttle for a heel and toe - but I think there was a resonance issue where the old system cranked down to 2" for the midbox, probably why it has that dip at 3.5k too, the later cars don't suffer from it but they have VVT and they also have a much longer 2-1 downpipe system that merges right where the cat-midbox joint is on the early engines - so that points at something similar as there's a tuned length there to cancel the dip out I would think.

Either way, pretty happy, 20bhp up on an old N/A car without any serious work is nice.

Edited by PhillipM on Thursday 21st September 13:54

John-9xggh

1 posts

4 months

Monday 1st January
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Great read. I'm in the process of restoring my v6. But where did you get the cooling bleed tank from? I just can't source one.

Cheers,

John

PhillipM

Original Poster:

6,524 posts

190 months

Monday 1st January
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Whoops forgot to update this thread biggrin

The coolant tank is the old one - it did the usual trick and split on the poor factory welds - so I printed the clamp/stress relief pieces you see either side there in nylon, made the jubilee-clip clamp, then applied a bead of silicone after cleaning the plastic welds out, flame treated the surfaces and clamped the two halves together with the jubilee.

However, because they're so hard to get hold of, I am currently making replacements in stainless steel - I've got a prototype mocked up already but I need to find time to weld it together.

Edited by PhillipM on Sunday 11th February 15:44