costina

iTrader: (1)

£300 ? All depends on volume.

Turbosystems

iTrader: (5)

Karl Norris has made a couple for his engines using a gt40 twin entry

crazycage

That's a lot of money for such a simple part

Turbosystems

iTrader: (5)

Take his money quick

Caddyshack

Proven to be an urban myth and has been tested to prove no benefit.

Mad_Mat

Corrected that for you

Caddyshack

Let's say you already own an engine, a rebuild is £3k before you do much to it, then port the head, chuck some nice Pistons, a cam and some long studs at it, maybe a crank and buy the Borg and the pay for a decent ecu and mapping, what is that £7k to £10k?, maybe more. Why not pay another £1k on the proper manifold? Sell the donor manifold for whatever you can get.

costina

iTrader: (1)

Toby, Give us 10k mate and you can have all my unwanted stuff..

costina

iTrader: (1)

I hear you do that well

costina

iTrader: (1)

Thanks.

Mad_Mat

Hopefully Jay gets something knocked up and will share his results.

Personally I could not justify the 1k on the tubular if the modified 2wd is 90% as good for a minimal comparative cost.

costina

iTrader: (1)

we are not all made of money.

scoooby slayer

iTrader: (4)

My thoughts exactly shouldn't be massively expensive to get 50 made or something like that, it would also be stronger as all these tubular manifolds will never be as tough as a cast one.

ajamesc

I guess that all comes down to the quality of the metal your tubular one is made off.

ajamesc

I wonder at what point the cast one becomes a flow restriction I'm sure I read on here at a certain point it dose

Jay,

iTrader: (4)

So you going to do one for me then mate ? I have a t4 flange coming already


Regards Jay

Turbosystems

iTrader: (5)

Way beyond the size of most members Balls

ajamesc

maybe there balls but what about there spec lol

scoooby slayer

iTrader: (4)

It will never be as strong as a cast manifold imo, I've had plenty of trouble with tubular turbo manifolds cracking and braking, I'd choose cast anyway my gtr is on stock manifolds, I'm sure a 2wd manifold wouldnt be to restrictive unless going for silly power imo

ajamesc

We have plenty of trouble with the cummins ce and be engine cast manifold cracking. Cast is not fail proof

Mark Shead

How many 4wd stock manifolds have cracks in them, Yes there is lots of crap tubular manifold out there.

Mark

Mark Shead

So about £700 diff then to a proper one then.

Mark

jamie956

Mark would swapping between a modded 2wd manifold to a tubular one make a big enough difference to warrant a re map.

Jay,

iTrader: (4)

Have you got a modded one Jamie

Regards Jay

stevieturbo

Is the tubular manifold easier to get at the bolts for bolting to the head ?

I recall the 2wd manifolds being a right cunt !! If the tubular is easier...that's worth a few quid too lol

jamie956

No, been looking at this conversion but as said its a big lump of cash to fork out for turbo and manifold in one go, was just thinking if you could get the turbo going on the car first then swap the manifold at a later date, but if you had to map it twice it would end up costing the same so no gain.

Jay,

iTrader: (4)

Ah same here but I bet i end buying one anyway lol

Regards Jay

scoooby slayer

iTrader: (4)

it only really needs a t4 flange welding on, then if you need to angle it away from the motor abit for clearance why not have a wedge shape thin spacer made to go on the manifold join and angle it away to the needed position, would be easy to mock up with spacers for desired fitment then just have a piece cut to the correct thickness will cost very little that way then, or cut the bottom flange off and reweld it to the desired angle to move the turbo where its needed

Mark Shead

It's much easier to do the bolts.

Mark

Mark Shead

Yes.

Mark

Cosnada

iTrader: (2)

The WRC manifolds are cast and all crack badly - I know I have one (repaired by MK). All 4x4's crack too! If yours isn't cracked then it's new or about to......

turbotrev

Would be really interesting to see what power a middle of the range efr does on a standard 2wd manifold compared to a tubular item....
Someone do it! Ha ha

Cheers Paul

crazycage

Wouldn't want to get in trouble with the mods for trading was just pointing out a simple option not looking for business

Jay,

iTrader: (4)

Ok no worries if any one else can make one let me know please

Regards Jay

Caddyshack

I can vouch for that as I had to take mine off to send it for zircotec coating, very simple job.

Caddyshack

Lol, I will back the car up ready.

BRAM

iTrader: (1)

I saw a escort Cosworth at croft last year with a nms trouser section that was twin scroll for a gt35/40 (can't remember which one) looked a nice piece of work and the car was good power can't remember exactly but somewhere in the region of 700 bhp.

scoooby slayer

iTrader: (4)

If it can manage 350 hp per litre then the 2wd manifold cant be that restrictive, I wonder if nms would sell them ?

ajamesc

lol I take my advice and opinion of the tuner I use and when he talks about the massive improvement in low down torque and response and you see the real results he gets I'm ok with spending a little more. The horse power number is good but the torque number and how low down it builds torque and horse power is the bigger picture

Mad_Mat

I expect Cosworth did plenty of development work on getting the spec of the 2wd manifold right in the first place so I wont be surprised if it performs pretty well in comparison to the tubular.

Great if it does