Jono has another idea brewing!!

[Jono FD3]

Guys, has anyone done, or know anyone who has done a custom tubular intake manifold?? I\'m talking a full on UIM & LIM in stainless :mmmm
No heatsoak problems to worry about as stainless doesn\'t absorb the heat like alloy, and because it is made out of tube & not cast, you won\'t get any air trapped under the UIM, as a result allowing the heat to escape between the tubes redusing the time hot air is presant!

I know I\'ll have to get some injector carryers machined up in stainless, but this is good, as I would be able to put bigger injectors in to cope with my other little idea :evillaugh

Jono

[m1tch]

JM Garage has made a custom intake manifold for his 20B FD

[Jono FD3]

oooo any pics floating about?

[davyv]

Jono count me in if you making some.

[karl_tate]

sound good jono, what kind of TB are you thinking of using??

[Jono FD3]

going to be utalising the std FD throttle body, just going to flow it a little so it suits the high flow inlet manifold
but the only thing is it wont be usable with the stock twins (or stock twins positioning anyway!!) so that is going to be the second part of the project!! LOL
would have thought I could pick up a fair few ponies & tourqes at the end of it

Jono

[davyv]

I\'m single sutup, Is this somthing you will make for others or just for youself.

[m1tch]

oooo any pics floating about?

The project is kinda under wraps regarding some of the parts, but its a 20B with a GT45, so it does kinda need BIG air flow lol

[L18M]

this might give you some ideas. jm garage
http://www.mig-welding.co.uk/forum/showthread.php?t=13423&page=3

[BlitzBoy]

Make sure you flow test the new LIM\\UIM versus the old one, you dont want to end up with a poorer flowing setup with pumping losses. Mazda designed the FD LIM\\UIM with a dynamic pressure methodology behind it to limit pumping losses.

[Jono FD3]

yea, I\'ll try to find somwhere that can flow test it for me, the joy of it is I will have a spair engine & manifolds to work on so my car isn\'t going to be off the road for 8 months or how ever long it takes me to get the set up sorted.... but the theory is the tubes will be equal size on all 4 like the cosmo RE manifold but in stainless
What\'s this Dynamic Pressure Methodology & pumping loss you speak of blitzy?? any links or theroy gumff I can take a look at to see what mysteriouse magic I have to work around??

As for the production...... at the moment it will be a single unit for mine, but I shall see how difficult it is to produce, then take it from there!

[RobMatthews]

Good luck with this :-)

but are you not just trying to reinvent the wheel a bit?will look rather sexy though if you pull it off:Thumbs-up

[shaunwil]

I\'d keep an eye on weight too. Although you can go much smaller wall thickness to get the weight down to match the original.

Another plus would be would will be able to get them ceramic coated to protect from heat even further. There is a basic ceramic coating but it can\'t be baked on the same as what they use on stainless.

Shaun

[jackaleks]

going to be utalising the std FD throttle body,

are you going to be doing a seperate tube for each port? you know it makes sense to go individual throttles + stacks and a collector

[leeroy_25]

I was thinking of this when I did my single conversion.. If you do it would be good to see some pics of the fabrication.
Is there no reason why standard cars never have stainless inlets? Always plastic or ally? sure cost would be a factor but on high performance cars that is kind of irrelevant??

Just a thought?!