your thoughts/advice on manifold build por favor

[nc30pete]

original setup

[Grant Monkhouse]

The best way too make the manifold is to just get the turbo where you can:) and take the pipes too it. Don\'t bother with equal length runners Etc because you could end up creating extra length and heat in there that you just don\'t need. Get the gasses out and too the turbo, through the turbo and out into the face of the people behind:D

If you want too run huge boost then WG placement can be critical, so can runner length but I doubt you will want more than 1 bar?

[Grant Monkhouse]

What car is it??

[nc30pete]

If you turn the manifold up 90 degrees and mount the turbo conventionally then you can place the WG ina different position, I put mine there to access it easily and because it looks to great to hide away under the car and get covered in crap off the road:)

prob is is the pipes from the flange stick out too far in that configuration

pardon my poor sketches but i hope this kinda shows what im getting at. Then again i could be totally misinterpreting what you are trying to get across to me :3Confused

[nc30pete]

a suzuki cappuccino , a roller skate on wheels :-)

[shifty biscuits]

Haha brilliant!! that should bean entertaining drive.

[Grant Monkhouse]

Drawn up same as you but a bit clearer. Try and use as little bends as possible to help keep it simple



You will need 2 x 90 bends and 1 x 45 bend and some straight at what ever length you require. You will also need too adapt/squash/make a flange where the 2 go into one the 1 x 90 bend in larger diameter up too you turbo flange

Exactly what you had drawn really, best thing to do is to make it the easiest way possible and what fits. Your WG position will be good too and in a half decent accessible position

[nc30pete]

Thanks grant, that\'s the sort of explanation I was hoping for , I already have x2 90deg bends and x1 45deg funnily enough, they are 2" ( 54mm I/d) and 3 mm thick wall, think I\'m going to have trouble sourcing stainless straight tube in this format..
 Due to the size restriction the runners all be short anyway , I\'m just trying to make it a nice run out from the flange , the old setup was so compromised by the steering dissecting the front rotors path. I\'ll take few pics of the old steel one and show you how awkward straight from the flange it was!

[Grant Monkhouse]

I did find a place that does 3mm thick stuff but they only sold 5 metre lengths!! Haha as it used for gas/oil/fuel piping, but I was going to go to their ore misuses and ask for a cut off from scrap pile;)

[Grant Monkhouse]

2" is a good size, generally people say keep it the same size as the exhaust port outlet. Some people have used smaller size piping too help promote earlier spool but EGT were effected. Bit of a trade off really

[nc30pete]

So you saying if I run this 2inch tubing from manifold up to the turbo I could run 2inch post turbo? That smaller size would definitely help routing past the bulkhead as the 3" I was contemplating on using

[Grant Monkhouse]

No if your turbo has a 3" outlet then use 3" what you can do with that down pipe is squash it in tight area as the internal volume will remain the same :thumbsup! In around those tight areas such as the the steering column.

2" is a good size for the runners out of the engine, you will need something larger for where you join the 2 together unless your wanting to run the 2 runners straight into the turbo flange? Either way will work fine

[nc30pete]

Deleted, poxy phone didn\'t update page properly and I didn\'t think last post posted up

[nc30pete]

Well the turbo is internally waste gated , either was going to do that sealed shut mod or chap at rotary shop in portsmouth said as it\'s a new garret blower to save money you could send off the turbo and ask for a different exhaust housing which doesn\'t have waste gate incorporation ? How compatible are exh housings ? If I could find a dead owner on evilbay for example and use the exh housing that would be a cheap way but I have little knowledge on blowers so I\'m sure I\'d buy lots of lemons before getting it right making it costly!

[nc30pete]

Oh while I\'m here, thankyou one and all for your help and input so far, just in 24hrs you\'ve helped tremendously in terms of enthusiasm & direction ;-)