Time to let the cat out of the bag. DCOE manifold.

Hey guys, so I have to admit, I've been holding out on you guys.

After nearly 10 years of my searching, e-mailing, calling, visiting shops, etc, and many other peoples hard work and persistence, there is finally a production DCOE manifold made specifically for the A20, and at the correct angle for the orientation in our cars.

Here's some pics of the first and only one in existence at the moment. I wanted to wait and let everyone know once I had the chance to install this and test it for real, but it's not entirely fair because I have no idea how long it'll take me to get mine running.

The manifold is a sand-cast 6061 Aluminum manny that used a base stock of a B18, but the flanges have been milled down on both sides to achieve the proper angle without having the full angle cut on only one side (which would have caused too much air disturbance).

The brand: Rowland Manifolds. http://www.manifolds.co.za/
You can get them from Extrudabody here in the US, or order direct from Rowland (they are located in South Africa). I would suggest ordering direct as Extrudabody tacks on a margin for profit, which I can't blame them for. Rowlands prices are extremely fair (almost too low to believe), and the quality of the casting is second to none for a sand-cast. It's not light, but weight on a manifold that's got to be strong enough to hang a set of $1200 carbs without fear of breaking is something I'm willing to sacrifice.

I worked with Rowland (the owner) over the course of months to get this done, and it's finally got a done stamp on it.

http://i296.photobucket.com/albums/m...y/RXS_2245.jpg

http://i296.photobucket.com/albums/m...y/RXS_2244.jpg

http://i296.photobucket.com/albums/m...y/RXS_2243.jpg

Nice these are sexy!

Sweet man! If you wanna loan me those Webers, I'll be more than happy to test it out on my B20A!!! :) That's MUCH nicer looking than my DCOE manifold. Is it for 40's or 45's? How much are we looking at here?

40's or 45's will work just fine. If i'm not mistake, this will also work with 48's.

No idea on current pricing. He use to list it on his site, and at that time (last Sept ish) he didn't have any US dealers, so I purchased direct from him. We also had worked out a different price due to all of the R&D he put into it, and because it was the first of a new offering.

Man his website is total intake pr0n.

Dual 38 intake for a V6 with ramhorns!!!
http://www.manifolds.co.za/images-gallery/DSC02702.gif

And he's got a good listing of interesting manifolds as well! Twin sidedraft manifolds and Toyota throttle body adapters for looks like B16 and B18s. Not that this DCOE manifold can't be used for Weber and Weber-style throttle bodies! Very cool!

yeah, he'll also do a custom cut on the carb flange of our manifold in order to adapt early Toyota ITB's if someone wanted to do that. I was going to have him do another one, but to fit those 'yota itb's, but funding fell short, and whatever I had, I wanted to put toward something I was actually going to use.

damn man...that is some cool stuff.


Cant wait to see it installed :thumbup:

thats just sick....

much less bullshit than the stock carbs haha

this looks interesting, the air horns and dual linkage

nice efforts Mark!
John beat me to it, but since I am closer I would be glad to test this :bandit:

Sucks, I sold my DCOEs to buy my current 3gee.

That is sooooo nice and clean, DAMN! Props again mark on the hard work to get these beauty's, hell if I wasn't efi I would surely get one...

Yeah, those things look killer. I may go with some DCOE throttle bodies in the future.

Quote:

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Originally Posted by 87roach

That is sooooo nice and clean, DAMN! Props again mark on the hard work to get these beauty's, hell if I wasn't efi I would surely get one...

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*cough* throttle bodies *cough*

My god yes, that would be amazing.. but alas there are no injector porties :(

Quote:

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Originally Posted by roodoo2

this looks interesting, the air horns and dual linkage

nice efforts Mark!
John beat me to it, but since I am closer I would be glad to test this :bandit:

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nah johns cars manual so it will actually be cooler lol

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Originally Posted by 87roach

My god yes, that would be amazing.. but alas there are no injector porties :(

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http://www.tweakit.net/shop/images/e...d_throttle.gif

They're right there. :)

yes that is a good price, you have no idea how much work it is to build something like that until you've done it. now you are going to post up a bunch of pictures of how he adapted the ports over to the round ports correct? and what do you mean by air disturbance? i just milled off the manifold at the correct angle and tig welded on the heavy plate the other manifold bolts too,i don't see an air disturbance problem.

fucking titays

Quote:

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Originally Posted by lostforawhile

yes that is a good price, you have no idea how much work it is to build something like that until you've done it. now you are going to post up a bunch of pictures of how he adapted the ports over to the round ports correct? and what do you mean by air disturbance? i just milled off the manifold at the correct angle and tig welded on the heavy plate the other manifold bolts too,i don't see an air disturbance problem.

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Sure I'll post up pics of that too. Just give me a day or so and it'll be done.

as for the angles...

When talking to a few old skool shops up here that have done custom manifolds, and bringing them my twm manifold (fits perfect, but no angle) all three shops that used to do carbs, and still do, all said that they would prefer not to cut the angle just on one side of the runners and just reweld the flange at the correct angle as it would be too much of an angle on just one side, and instead to correct the angle by milling the runners on both sides and rewelding the flanges back on. So if trying to accomplish a 12* cut, they would take 6* off each side rather than the full 12* from one side. Not saying anyone is right or wrong, but just saying what a number of shops (unrelated to each other) and Rowland suggested be done to accomplish the proper angle.

In this case, the runners were not cut, because he was able to get the manifold cast with a very thick flange so he had enough material to mill each flange down the 6* (ish) degrees in order to get the carbs to sit at the proper tilt when installed on the motor. Same idea though.

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Originally Posted by AccordB20A

nah johns cars manual so it will actually be cooler lol

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matter of opinion, but I do have a five speed DX remember I have two modded 3 gens

looks good now slap it on that ported and polished head

Aye, thanks for shovin' me foot in me' mouth.

Hmm.. I will have to consider this as another option.

ohhhh!!! Carotman told me to come here to check this out!! Can't wait to know the price. You can bet that I am a buyer!

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Originally Posted by 2ndGenGuy

http://www.tweakit.net/shop/images/e...d_throttle.gif

They're right there. :)

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what website can i get those from?? i'd like to convert to individual throttle bodies, but i'm worried about computer management and MAP sensor nonsense