handmade manifolds

Post by **S4_BY_U** » Tue Oct 09, 2007 12:24 am

What an interesting topic, I'll be keeping my eye on this one!!!

P

Post by **AdamS4** » Fri Oct 12, 2007 12:42 pm

Just received my manifolds and i must say... 1st impression are very good. They look really good.... so good i might keep em for my shelve !! LOL

I'm going to give them to my uncle who's a welder and see what he says but for £53.... i can't complain !!!

Post by **JonnyX** » Fri Oct 12, 2007 1:34 pm

Keep us posted.

Post by **okkim** » Fri Oct 12, 2007 1:51 pm

BTW, the flanges are not stainless, but I guess it doesn't matter.

Post by **Siena** » Fri Oct 12, 2007 3:36 pm

Nice one, Mark. Let's know how it goes.

Post by **confusionhunter** » Fri Oct 12, 2007 4:18 pm

actually, Ive seen some evidence to suggest they may be stainless. I scrathed some of the coating off and theyve been sitting a while and no rust at all....

Just because they are magnetic doesnt neccesarily mean the arent stainless. My Wedling lecturer said" Thats good tig welding". and also commented that it could be a Martensitic stainless, at which point. Even if it is mild steel, thats no problem in my book.

So I I have no doubt they are well made tbh, but as I said on page 3 whether they are up to the job of supportin a turbo and downpipes weight is a nother story altogether....

Post by **lemond** » Sat Oct 13, 2007 12:35 am

Austenitic st/st is non mag, but with a lot of heat or work it can take a magnet... not so strongly though...somtimes round the weld zone it can have a 'pull'.

Martensitic is magnetic and can be hardened.

Ferritic is also magnetc. Ferritic is normally the choice for sch things unless they are Really good and then you want a high Ni Inco type alloy.

Normal austenitic st/st has a high coef of expansion is not so good in some applications.... Also the reason why a Milltek gets a 1" woody out of the back of the car after being thrashed!

I've been told that some aftermarket manifolds can expand distort so much they can cause all sorts of problems...cracking and even pulling threads out, but thread pulling is really hard to believe.

I hope the manifolds work (by this I mean don't crack or distort and leak)

Post by **Bosun20** » Tue Oct 23, 2007 10:47 am

Wish i had read this before i brought and fitted mine.
Had a bit of a problem with the right side manifold,it pulled the turbo right in near the starter and there was no brackets for the heat shield.
I also heat wrapped before fitting.
I`ve only done a few hundred miles with them on so far,so not really tested them yet.
I couldn`t really comment on power gains as i also fitted new turbos and a alloy flywheel at the same time,so a bit hard to tell.
It was mentioned the cracking may due to movement of the engine.
Would a DTS been fitted help this?

Post by **AdamS4** » Tue Nov 20, 2007 9:53 pm

Post by **MarkB** » Wed Nov 21, 2007 9:27 am

Why the pictures Adam? Have you bought some?

Post by **AdamS4** » Wed Nov 21, 2007 1:19 pm

Yeah, i bought some back in Oct (See post further up) but the pictures weren't working so reposted

Post by **MarkB** » Wed Nov 21, 2007 1:22 pm

AdamS4 wrote:Yeah, i bought some back in Oct (See post further up) but the pictures weren't working so reposted

Oh yes, my failing memory

Are you coming to the Windsor meet next week? I'd like to see them.

Post by **AdamS4** » Wed Nov 21, 2007 1:43 pm

I'm working nights that day

Soz

I will bring them to a meet tho... just need to find the next one i can make

Post by **MarkB** » Wed Nov 21, 2007 1:45 pm

No problemo

Post by **MarkB** » Wed Nov 28, 2007 5:44 pm

Anyone got these fitted and running on an engine yet???

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