Gauging intrest in a VH45 ITB intake manifold.

[Olderthanme]

Hey guys...I'm at the part of my build where I am having an ITB manifold CNC'd. I am using the early dual port heads so this set is engineered toward that. I'm also building it to use the Extrudabody individual throttle bodies or possibly a weber bolt pattern.http://www.extrudabody.com

If there is some intrest I'll be able to get them cut out. Otherwise I'll just cut my own.I think about 8 sets would get me going on production....

I can redo it for the oval port heads if someone can lend me a head to take measurements from.

No word on price just yet.

Oh yeah....The pic of my unfinished solidworks prototype sketch:

The 45mm throttle body will mount to a flange right above the round opening.

OTM

BTW... This should fit under the hood of just about anything. LOL! Ditch that stock spider!

[Mettler]

Ah good old photoworks! Love its raytracing ability!

Those extrudabody throttles are the business... but oh SO expensive!!

[tmorgan4]

Nice work so far! ITBs are probably a little much for my Pathfinder since it doesn't even run correctly with a stock engine, but I like your drawings of the intake ports. I might have to see if I can talk you out a set of flanges later so I can get rid of this damn plenum. I've had it off at least 8 times already and I'm sick of it!

[SuperHatch]

I'm very interested. I'd prefer it for the oval port heads, but since I have both sets of heads sitting here, either will work for me.

[Olderthanme]

The reasoning for using it on the dual port VVT heads is so that I'll be able to retune the VVT to my advantage with the EMS (wolf) and be able to tune it. It seems that more people have the dual port heads anyway.

Tmorgan, These can be used for a conventional single or dual throttle body design. Just make a plenum to attach to the throttle body bolt pattern and mount your throttle body at the front of the plenum(s).

Mettler, they are expensive but they are great quality! I have spoken to Kevin at Extrudabody many times on the subject of his throttle bodies.Photoworks is very cool!

OTM

[Quixoticjoe]

I'm very interested .

[maxnix]

I guess you are manufacturing a plenum?

[Carl H]

a bolt on plenum would be great for those who wish to retain a maf setup...

[Olderthanme]

Extrudabody is currently developing an ITB kit for a forced induction VK56(in a Z33) so since it has the same bore spacing their entire kit (when it comes out) would be able to bolt on to these lower runners. I believe they will be offering a plenum for it since it is going to be a forced induction setup.

Here is a picture of one bank of the VK56 ITBs which would be able to bolt on to my lower manifolding. (without the base adapter below the ITBs.)

[Carl H]

out of curiousity why mount the injectors inside of the plenum and not use bosses that appear to be located on the ITBs?

[Coolwhip]

craftsmenship looks sex

[SuperHatch]

out of curiousity why mount the injectors inside of the plenum and not use bosses that appear to be located on the ITBs?

Better fuel atomization and less fuel on the walls of the intake runner/port.

[Olderthanme]

Exactly. You lose a little low end power when using stand of injectors but you gain on the top end. You can use staged injectors with some small stock-ish injectors on the sides and have your EMS let the standoff injectorss take over partially or completely your fuel input. You can see where they blocked off the normal injector mounting holes on the above manifold.

Look around at Formula 1 intake manifolds and you will see mostly standoff injectors...

[Marquinho]

Exactly. You lose a little low end power when using stand of injectors but you gain on the top end. You can use staged injectors with some small stock-ish injectors on the sides and have your EMS let the standoff injectorss take over partially or completely your fuel input. You can see where they blocked off the normal injector mounting holes on the above manifold.

Look around at Formula 1 intake manifolds and you will see mostly standoff injectors...

I really like this! One thing to note though on top mounted injectors is that it is great for racing, but makes for a tricky proposition when you want to put filters on you ram tubes (venturis) or use a plenum and attach a cold air setup.

[hannibal]

Do you have a price on that VK setup? Just curious...

OTM, seems like the oval ports would be easier to to make piping for. I'd wanna see flanges for those heads...

[SuperHatch]

Do you have a price on that VK setup? Just curious...

OTM, seems like the oval ports would be easier to to make piping for. I'd wanna see flanges for those heads...

The VK setup is listed on their site for $1900

I agree, and I'm willing to be the VK setup can be adapted to the oval VH pretty easily since the bore spacing is the same... If the ports are close in size we're just talking about an adaptor plate.

[accurate inject]

Guys:

If we had a Couple step forward Extrudabody could Easily Build a set of Plates for the VH45 Motors!

[Magnezium]

Anyone actually do this yet? I'm trying to figure out what motor to swap in, and the ITBs on a VH45 would be VERY awesome. I'm not planning on doing a lot of fabrication on my own so purchasing a turn-key intake would be choice.

[ZenkiFactor]

We'll I would totally be for this except I'm poor ATM. Once I join the Air Force and finish my basic I'll be all over these things.

Bolt on FTW!

[Carl H]

how many to buy in?

[unknown007]

Are these what they are?

http://www.youtube.com/watch?v=ripuVvmsA7M

http://www.youtube.com/watch?v...lated
Modified by unknown007 at 12:11 AM 3/18/2009

[Orphan]

Nope. Yes ITB but not the same injection, the ones in the video use the standard style injection mounting at the base of the intake runners.

[gs14racer]

how many to buy in?

Guys i just got off the phone with extrudabody, i need a measurment of the port size, only the later versions (single port ) are an option right now. I dont have a motor handy right now but someone measure the port for me accuratly please across top to bottom and side to side. In MM also. Hes waiting on my call with this info.

Also the port spacing is 112 mm correct.

[gs14racer]

Hey spoke to them, they can make them off of the vk56 kit no problem. The only issue would be port match the head to match the slightly larger flange ports of the vk56. All they need on the first run is an intake manifold gasket to drill the plates and to make sure there are no clearance issues with the flange. But they said its simple enough and easy to do.

price is 2k with linkage, whos gonna bite??

[SuperHatch]

Hey spoke to them, they can make them off of the vk56 kit no problem. The only issue would be port match the head to match the slightly larger flange ports of the vk56. All they need on the first run is an intake manifold gasket to drill the plates and to make sure there are no clearance issues with the flange. But they said its simple enough and easy to do.

price is 2k with linkage, whos gonna bite??

I have a PDF Drawing of the intake ports/bolt holes of the later heads.

I would love to throw this setup on my S14... just need to fabricate a pair of plenums so I can use two Z32 Mafs...

[gs14racer]

They also have the plenum plates specificly for this setup as well

[dsagers]

I would be interested to know the cost of a pair of plates that bolt to the head so I can make my own blower intake manifold?

[PanzerAce]

I'd be in for a complete setup for 2k if I had a VH already. Did you happen to ask about a VK45 setup?

[DJ Raijin]

I too would be down for an ITB set up if I already had my VH45