Turbo Manifolds

[weejimmy 1]

i would think 2mm is too thin.

[Cameron 16]

2mm is probably the largest you're ever likely to need unless your manifold is really very very short. 1.6mm would have been just fine for a manifold of that size, specially as its ceramic coated on both sides.

[jonnyturbo 3]

does nowhere else do manifolds for the XU10J2TE engine other then dp engineering? anyone if you could make a custom one using the XU10J2TE flange and a 200sx welded together or something like that?

[Issam 0]

does nowhere else do manifolds for the XU10J2TE engine other then dp engineering? anyone if you could make a custom one using the XU10J2TE flange and a 200sx welded together or something like that?

 

Ive done some tubular manifolds in the past but to be quite frank the material some of these manifolds are being made from is not ideal for manifold construction.

[weejimmy 1]

2mm is probably the largest you're ever likely to need unless your manifold is really very very short. 1.6mm would have been just fine for a manifold of that size, specially as its ceramic coated on both sides.

 

 

im just going on what i was told buy a guy who builds turbo engines,

he has built 700bhp evos and stuff i think he builds about 1 engine a week with manifolds he makes himself and he says 2mm wont last long using the car day to day.

needs to be 3mm realy to cope and not crack later down the line. mayby thats just for realy high power engines. althoe he uses 3mm on all his manifolds, even for low compresion turbos.

[ALEX 98 1 Cars]

Anything is possible! Thought whether you'd want to is another question, cost would be ridiculous, it would have to be made in several parts and bolted together, probably be heavier than a welded item...the list goes on!

 

I mean, you could CNC a paperclip, but what would the point be?

 

It wouldn't cost anything if you had access to a CNC milling machine, either through work or for a nice project at tech!

I imagine it would be expensive if you bought one off the shelf though!

Heat might be an issue, but you could run coolant through it I suppose.

 

It makes you wonder why they don't design the turbo manifold as part of the head casting!

There's probably an obvious reason why not... anyone?

[paulvancraen 0]

How is this coming along wracing?

Any progress?

 

Let us know!

Edited September 29, 2009 by paulvancraen

[[L'e$kro] 2]

Bump!

 

Nicolas

[jonnyturbo 3]

told me other week (i think) he has had a few problems irl and hes still carrying on just give it time, but i will ask again is there anywhere else to buy a decent manifold for the 2.0 8v turbo engine other then paying the prices of dp ?

[wracing 19]

to answer the head casting question, i guess its because you would end up with core plugs in the exhaust manifold i guess?!

 

sorry guys progress is slow extenuating circumstances sorry to keep you hanging guys thanks for you patience

 

james

[Cameron 16]

told me other week (i think) he has had a few problems irl and hes still carrying on just give it time, but i will ask again is there anywhere else to buy a decent manifold for the 2.0 8v turbo engine other then paying the prices of dp ?

 

No, frankly.

 

You won't get a quality product for less than the DP manifold, they cost that much for a very good reason. Try getting a quote for one of those custom made from the likes of Primary Designs or BTB and you'll probably think DP's prices are extremely generous! Best to just not be a pikey and fork out the necessary notes for a decent product.

[jonnyturbo 3]

No, frankly.

 

You won't get a quality product for less than the DP manifold, they cost that much for a very good reason. Try getting a quote for one of those custom made from the likes of Primary Designs or BTB and you'll probably think DP's prices are extremely generous! Best to just not be a pikey and fork out the necessary notes for a decent product.

 

 

how does the tt manifold match up against the standard 8v manifold? is it better flow ? im not really that rich or make alot of money with the job im in so im looking for an alternative to the dp evan if its only a bit better then the standard.

im a pikey

[wracing 19]

make a log manifold using 2 X stainless tees.

 

http://www.lamberts.co.uk/profile/webpic/p...ne/sftw1tee.jpg

 

and 2 x stainless bends.

 

http://www.lamberts.co.uk/profile/webpic/p...ne/sftw1elb.jpg

 

all you will need is a 100mm length of 1.1/2" stainless pipe.

 

stainless turbo flange and head flange.

 

if you know someone with the ability to weld stainless you can easly build such a manifold for less that 150 pounds and will flow very well indeed.

 

you can do this manifold in mild for even cheaper!!

 

james

[wracing 19]

http://forum.205gtidrivers.com/style_image.../attach_add.png

 

log style manifold sketch very effective and low cost. flange would fit on the back top or side depending on turbo, divided flange solutions possible, although not optimal due to the firing cylinder pairs.

 

james

[Cameron 16]

how does the tt manifold match up against the standard 8v manifold? is it better flow ? im not really that rich or make alot of money with the job im in so im looking for an alternative to the dp evan if its only a bit better then the standard.

im a pikey

 

Not sure, never seen one! I think in terms of value for money, it'd be false economy to fork out for something that is only slightly better (or potentially worse) than the standard manifold. If you only get say a 1% gain for a £150 manifold, then you're getting 0.6% gain per £100 spent and an improvement that's barely noticeable! You may get a 10% gain with a properly designed (eg DP) one, and costing £550 you're getting 1.8% per £100 spent, which it 3 x the performance gain per pound spent. Hope that makes sense!

 

Basically, it may seem like a good deal to get a manifold for next to nothing, but when you properly sit down and compare you'll realise that the gains are piss poor! You'd be better off just saving for a bit longer and getting something worth it.

[wracing 19]

over std the tubular log manifolds can have huge gains in reliability, flow and thermal properties. also larger turbos can be easily fitted, with out having to rearrange your engine bay.

 

that said the std manifold will outflow the std tb25 turbo, with porting it can support slightly larger frame and a/r size turbos.

 

james

Edited November 29, 2009 by wracing

[wracing 19]

i use my cars as a learning curve, what do you get more from....bolting on a shiny part, or researching, designing and fabricating something that will fit your horsepower target, packaging solutions and budget?

 

james

[nunoserrano 0]

Hi and how about the 16v manifolds ???

 

 

thanks

[wracing 19]

currently the 16v manifolds are finished on the cad side of things, i havent been able to build one myself due to my projects heading in a different direction, but stu baker highlighted his interest in test fabrication, and im looking to get back in contact with him.

 

i have been developing a equal length manifold where by the turbo is mounted behind/above the engine, geared toward people like Cybernck, myself and other rear engine extremists.

 

has anyone looked and using a bulkhead box like the mini uses to fit carbs, chargers in ?

 

 

james

[nunoserrano 0]

him interessed on the 16v manifold hope to hear some news from you on this

 

thanks

[Matt180 31]

I think these are a good idea!. When you put time and effort into it, there is no reason why you cant produce a quality part yourself. If anyone looking at these is put off by the fact they cant weld, i can offer my services.

[jonnyturbo 3]

matt180 how much would you charge if someone sent you the pipes for you to weld up?

[wracing 19]

right i've been making some progress currently building a 4-2-1 design 16v manifold and a 4-1. cfd shows there are no performance gains in the extra pipe work, although 4-2-1 may give a better spool!

 

thus back to back testing time:

 

 

 

 

more photos to come i should have this built tomorrow!

 

thanks

 

 

james

[wracing 19]

it clears the gear linkage master cylinder and the bulk head very compact and easy to fabricate manifold!!

 

james

[B1ack_Mi16 67]

it clears the gear linkage master cylinder and the bulk head very compact and easy to fabricate manifold!!

 

james

 

What is the internal diameter of those pipes?

 

They look immense.... won't you loose spool-up due to relatively "slow" gas speed?