Another member has requested to have a flange manufactured to make a manifold which will allow him to run quad throttle bodies. He has agreed for me to mention this to see if anyone else was interested in a set. I’ve had this waiting for over a month now so I really need to get the ball rolling.

There are two flanges to be made up, A-series and 4AGE TB flanges. This will allow you to build your manifold on a budget and you could basically do it bit by bit. You can also design your own manifold from approach angle to runner length and so on.

You may also have the opportunity to design a long runner setup with staged injectors but that’s up to you to investigate.

I think any experienced fabricator can assist you with fabricating the runners. He can get achieve this fairly easily, there are many ways to skin a cat so to speak. You could use straight CHS and slice and split the tube then tig some patches into place, or get a hold of some tapered tube and go from there.

Here are some pictures to help you decide (the last manifold is at 22 degrees, around about the same angle as the roof of the GX and other oval port variants). Let me know if you are interested, the more the merrier. I can give a price once we have solid numbers.

Material: Alloy
Thickness: 10mm
Precision Cut

What else will you need?
- 4AGE 20v Throttle Bodies.
- Aluminium hollow section or tapered pipe for runners.
- A decent fabricator (some money to pay the fabricator).
- Tap/thread the holes that the throttle bodies screw into.

Send me a PM or voice interest here.

I am also keen to help anyone else fitting quad throttle bodies to their A-series, send me a PM. I may have what you need right here

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  A series + 20v 4AGE Flanges.png (27.59 KB)


  Long runner 5degree angle.jpg (169.15 KB)


  Short Runner 22degree Angle.jpg (198.78 KB)


  7952_4e02c2789e606.jpg (82.25 KB)

do you have a wiring lume?

Very nice!!

I am actually in the process of making my own 20valve quads fit my Sr20ve head. (I have been borrowing a manifold up till now)

I have been a bit lazy in working out the flange for the quads, I am still going to use the standard head flange and injector bosses, Just run pipes from there to the quads.

SO... Im am keen in one of the flanges for the quad's side, or I will pay you for the drawing and get it cut myself here in Sydney.

Flanges will need to be milled after welding so thats $60 to $75 ontop of getting a fabricator to weld it up just if anyone was trying to price a setup like this up.

Ziggy, not to sure about the loom, the throttle bodies belong to someone else. I did not receive a loom with them.

Chooie, sorry I don't release drawings. Been burnt a couple times before doing that with engine parts as well as in the architecture industry. No offense I am sure you are genuine but I just can't let them go.

As for a flange you are very welcome to buy one, do you need one as well for the SR20 primary manifold so it is a bolt-on bolt off fitting or are you welding directly to the SR20 manifold?

Flanges are in alloy, I hope this suits.

diymark, is this the case with alloy flanges as well? I wouldn't have thought so in this instance. I have found keeping the flanges bolted down and or tacked to some heavy plate reduces alot of the movement.

Thats fine, I would be willing to pay for the drawing...
I am a Sheetmetal worker by trade, I'll be doing all the fab myself.

Can you confirm a price for the quad flange only.

Ziggy, the only wiring is the TPS, easy.

i'd be interested in an alloy flange for a oval port a series head

Good to see I am not alone with this wee challenge.

Been working on building a 4AGE ITB setup for my A15 motor for my 1200 coupe restore for the last 18 months or so on and off.
Think I have got pretty much all my bits sorted out, just some wiring, fuel lines & fab work on the manifold to sort out.
First Photo shows a mock up of the assembled ITB setup (will be abut 5° steeper inlet angle than shown).
Second photo shows all my bits; 1) 10mm Laser cut inlet manifold (ex Ebay AU), 2) Custom machined inlet tubes (yet to be match ported), 3) Bosch “shorty” injectors, and Custom fabricated injector pocket tubes (ex Ebay USA), 4) 6mm Laser cut ITB mounting plate, I had made locally (yell out if anyone wants the DXF file), 5) blasted & cleaned up 43mm Silver top 4AGE quad bodies, 6) Techno Toy tuning T3 red anodized trumpys (yummy).

Get my car back in a few weeks from the panel beaters all going well, so will trial fit up motor, wire up the Megasquirt, and hook up some juice etc, and do final fab work on the manifold.

http://img121.imageshack.us/img121/3053/dscf2251x.jpg

http://img715.imageshack.us/img715/3492/itbbits.jpg

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heres the photo of the motor with the ITB's mocked up

Note I am running enough angle on my inlet, so I can flip the whole assembly, thus getting TPS away from firewall, and discretely hiding the throttle linkages underneath, to give clearer room above for fuel rail etc.

my original setup pushed the fuel rail hard up against the throttle linkages, as I didnt want injectors too close to inlet, to give chance to atomise the inlet charge, but didnt want too long as I wanted to keep trumpets aay from strut tower, and also optimise the inlet length (I calculated I think 290mm to be about optimum, from valve and trumpet inlet)

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  efi setup assy.JPG (30.89 KB)

Hello Kitch,

Great setup you have there. You bought those flanges from me off eBay, good to see you're a member.

Engine looks grand, are you saying the runners are swept forward toward the radiator?

What MS are you using? I have the MS3 (overkill) going with factory EFI and M45 supercharger. Nice work, you should start a build thread with all that A-series goodness.

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