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Author Subject: Diy turbo manifold
v6saloon

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Location: Ilkeston

Registered: 24 Sep 2010

Posts: 619

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Post #1
Right I'm going to attempt to make one of these
Can anybody advise me what gauge to use? found a decent supplier in the states but unsure what gauge to useDunno

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205 mi16
405 Mi16x4 restoration project
406 v6 saloon track car project/daily driver
508 Hdi
Posted 23rd May 2015 at 13:50
midlife

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Location: Colne, Lancashire

Registered: 13 Mar 2006

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Post #2
Good luck with thatDoh

Cool

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Posted 23rd May 2015 at 14:38
v6saloon

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Location: Ilkeston

Registered: 24 Sep 2010

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Post #3
midlife wrote:
Good luck with thatDoh

Cool

What do you mean? couple hrs work and it will be good to go LOL

________________________________________

205 mi16
405 Mi16x4 restoration project
406 v6 saloon track car project/daily driver
508 Hdi
Posted 23rd May 2015 at 17:28
6waysforward

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Location: Benfleet essex

Registered: 30 Oct 2005

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Post #4
Mate I've got 16 years fabrication/ welding behind me. I have welded everything from tin foil to Ocean going tanker hulls. I am very confident I could do it but I am also aware that it's not a job taken lightly unless you have access to a workshop with the right tools.

But fair play to you if your going to give it a go. Hope your a patient man.

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***Breaking*** Ph3 Silver GTI 6 High Boost Superman




Posted 23rd May 2015 at 23:00
RallyeP6

Regular

Location: West Byfleet

Registered: 11 Jul 2013

Posts: 451

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Post #5
I totaled up 56 hours of hacksawing, grinding, filing and tacking, to get my manifold done, plus the time it took a friend of mine to weld it all together.
It can be done, be patient!.
Posted 23rd May 2015 at 23:41
Cjwatson27

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Location: Oxford

Registered: 17 Sep 2013

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Post #6
Weekends work tops

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Old pugs don't die they just get faster
Posted 24th May 2015 at 00:23
v6saloon

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Location: Ilkeston

Registered: 24 Sep 2010

Posts: 619

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Post #7
Thanks guys, just need to get the flanges cut and wait for the pipe to come from the states and I can get started, will try and keep updated on here of my progress Smile

________________________________________

205 mi16
405 Mi16x4 restoration project
406 v6 saloon track car project/daily driver
508 Hdi
Posted 24th May 2015 at 09:17
Cjwatson27

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Location: Oxford

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Post #8
Can you get Pistons for the v6 or would you be able to use decompression plates. Have you though about maybe buthchering a orginal manifold it might help you with some of the parts and bends

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Old pugs don't die they just get faster
Posted 24th May 2015 at 10:13
v6saloon

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Location: Ilkeston

Registered: 24 Sep 2010

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Post #9
Cjwatson27 wrote:
Can you get Pistons for the v6 or would you be able to use decompression plates. Have you though about maybe buthchering a orginal manifold it might help you with some of the parts and bends

No pistons available so it's going to be decompression plates, the original manifolds are cast, not sure if the rest is mild steel or stainless but would rather just to the whole thing from scratch tbh

________________________________________

205 mi16
405 Mi16x4 restoration project
406 v6 saloon track car project/daily driver
508 Hdi
Posted 24th May 2015 at 10:19
welshpug!

Capt Pedantic

Location: Bigend, Wales.

Registered: 27 Mar 2007

Posts: 25,817

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Post #10
original manifolds are cast, so a no go there.

anything is possible regarding the pistons, just supply a drawing to a company that makes pistons!

DP engineering made 317 bhp on stock engine for 6 years now.

you introduce many complications if you use decompression plates, your inlet manifold wont fit for a start!

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need a part number? get on here - http://public.servicebox.peugeot.com

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Posted 24th May 2015 at 10:27
Cjwatson27

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Location: Oxford

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Post #11
Ever see a turbo v6 in a 306 or 205 mei ? Just out of interest my pockets are no way deeper enough for a build like that.

________________________________________

Old pugs don't die they just get faster
Posted 24th May 2015 at 10:31
welshpug!

Capt Pedantic

Location: Bigend, Wales.

Registered: 27 Mar 2007

Posts: 25,817

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Post #12
never seen one up close but DP-Engineering have that manifold pictured in a 406.

main costs are the time to make the manifold and the turbo itself, and an ecu to run it, specifically converting to a V6 doesn't cost that much if you diy it.

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need a part number? get on here - http://public.servicebox.peugeot.com

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Posted 24th May 2015 at 11:16
v6saloon

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Location: Ilkeston

Registered: 24 Sep 2010

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Post #13
Cjwatson27 wrote:
Ever see a turbo v6 in a 306 or 205 mei ? Just out of interest my pockets are no way deeper enough for a build like that.

there is a 306 v6 turbo out there, seen videos of it on YouTube

________________________________________

205 mi16
405 Mi16x4 restoration project
406 v6 saloon track car project/daily driver
508 Hdi
Posted 24th May 2015 at 13:41
v6saloon

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Location: Ilkeston

Registered: 24 Sep 2010

Posts: 619

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Post #14
welshpug! wrote:
original manifolds are cast, so a no go there.

anything is possible regarding the pistons, just supply a drawing to a company that makes pistons!

DP engineering made 317 bhp on stock engine for 6 years now.

you introduce many complications if you use decompression plates, your inlet manifold wont fit for a start!

Maybe that could be a better option then? Is there anywhere you would recommend?

________________________________________

205 mi16
405 Mi16x4 restoration project
406 v6 saloon track car project/daily driver
508 Hdi
Posted 24th May 2015 at 13:43
allanallen

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Location: Buxton

Registered: 01 May 2007

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Post #15
Why are you getting pipe from the states? Is it that much cheaper?

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Posted 24th May 2015 at 13:47
allanallen

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Location: Buxton

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Post #16
I have no experience with v6 engines but could you not use the original manifolds and send the down pipes to a remotely mounted turbo? The one pictured appears to do that or an I missing something?

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Posted 24th May 2015 at 13:50
welshpug!

Capt Pedantic

Location: Bigend, Wales.

Registered: 27 Mar 2007

Posts: 25,817

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Post #17
it could be done very easily yes, I think its just that the standard D8 manifolds are perceived to be a bit restrictive, but they clamp to some easily adaptable V-band style clamps before joining the link pipe then the downpipe itself.



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need a part number? get on here - http://public.servicebox.peugeot.com

Bring on the Trumpets.

Posted 24th May 2015 at 14:03
allanallen

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Location: Buxton

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Post #18
Could be a simple cheap solution for a low pressure setup using standard compression......

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Posted 24th May 2015 at 14:09
Cjwatson27

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Location: Oxford

Registered: 17 Sep 2013

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Post #19
That's what I was wondering wether the engine would be ok with just a sensible amount of boost using its standard internals

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Old pugs don't die they just get faster
Posted 24th May 2015 at 15:20
allanallen

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Location: Buxton

Registered: 01 May 2007

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Post #20
As welshpug has already mentioned DP have been running the 406 that way for a while now. And let's face it, if it did go pop engines are hardly expensive to replace!

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Posted 24th May 2015 at 15:48
welshpug!

Capt Pedantic

Location: Bigend, Wales.

Registered: 27 Mar 2007

Posts: 25,817

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Post #21
not sure how much boost/air they are running through it, but to last that long and make 120 bhp over stock is good going, its about 55% increase, which is just about exactly what the low boost gti6's are over standard.

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need a part number? get on here - http://public.servicebox.peugeot.com

Bring on the Trumpets.

Posted 24th May 2015 at 15:51
v6saloon

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Location: Ilkeston

Registered: 24 Sep 2010

Posts: 619

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Post #22
This was more to see what power I can get at high pressure so the compression needs to be lowered, am aiming for a minimum of 400 hp.....

I'm sure it can be done at low pressure much easier and I did consider doing this but I like to complicate things :-/

________________________________________

205 mi16
405 Mi16x4 restoration project
406 v6 saloon track car project/daily driver
508 Hdi
Posted 24th May 2015 at 15:57
v6saloon

Senior User

Location: Ilkeston

Registered: 24 Sep 2010

Posts: 619

Status: Offline

Post #23
Plus the d8 v6 is lower compression than the d9

________________________________________

205 mi16
405 Mi16x4 restoration project
406 v6 saloon track car project/daily driver
508 Hdi
Posted 24th May 2015 at 16:00
Cjwatson27

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Location: Oxford

Registered: 17 Sep 2013

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Post #24
So that 120bhp is on a stock engine ?

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Old pugs don't die they just get faster
Posted 24th May 2015 at 16:03
welshpug!

Capt Pedantic

Location: Bigend, Wales.

Registered: 27 Mar 2007

Posts: 25,817

Status: Offline

Post #25
its 10.5 to 10.9, not a significant difference.

________________________________________

need a part number? get on here - http://public.servicebox.peugeot.com

Bring on the Trumpets.

Posted 24th May 2015 at 16:12

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