GT-R R35 Plenum Test Fitment on my VQ37HR

indyn

will the stock throttle bodies still work with the GTR intake manifold?

roplusbee

I am very curious as well. I turned down the Motordyne manifold because it was not really necessary for my Greddy build, but this one is a want item!

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SPOHN

It's nice to see so much progress.

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wstar

Yes

+1

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The Dimer

No kidding. It's so nice to see a project go from an idea to reality in such a short period of time.

Skeeterbop

Seriously, the time from concept to actually holding the prototype in hand is moving remarkably fast. Looking forward to your results/finished product.

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ChrisUR

thank you for all the warm words again - currently I discover it being real hard to find a company who is willing to make an affordable offer to make the prototype flanges. They simply do not understand that I can and/or will only order quantities after the prototype has been tested and slightly modified for perfect fit and function and that it doesn't make any sense to pay thousands for the first try which may end in the basket for either not being 100% accurate out of the drawing or doesn't bring performance gains in the real world.

But I have dozens of requests still unanswered so I'm hoping to have a good offer soon. I even think about buying my own 5-axis CNC machine

will keep you posted !

Chris

PS: as my car currently has no intake manifold and I'm not willing to install the stock plenum again I definitely WILL find a way to at least built the prototype for myself

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KevinB

Any news? Very interesting thread

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N8GTOL

Good progress! I'm in for results.

Not trying to be negative, but it's going to be tough to find a shop that will make this prototype for you on a small budget. It's a large business risk for them not knowing if they will get the follow-on orders. The NRE cost for a one off part is mostly what is driving the cost up...that and 5 axis time is never cheap (don't think you actually need 5-axis capability to make this part as a one off). You would be better off if you could find a friend (or someone here on the forum) with access to a machine shop that will do the labor for free/cheap for this prototype. Even better if you have access to MastercamX (or equivalent) and can do the NC programming yourself. For a cheap fit check, you could always invest a few hundred bucks to get a plastic rapid prototype made.

Good luck and hope you are able to get your test part fabbed up soon!

The Dimer

Any luck finding someone to fab up the prototype?

370Z JT

Is this project dead?

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wstar

I doubt it, but it has probably run into some practical snags on the CNC work from the sound of it.

Chris: have you considered doing initial fitment with something cheaper? e.g. someone may be willing to cut (or 3D-Print) your specs out of plastic for test-fitting and design revision. You might not be able to dyno-test that version, but you could at least get everything lined up so that the first metal version fits correctly and just needs the dyno testing.

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Paskii

Thanks for the updates and glad to hear that your persevering even though no one is responding to you. The 5-axis CNC machine are quite pricy so I could understand why they charge an arm and a leg for any jobs involving it, where I'm from not too many places actually have a 5 axis, wish I could help.

erkthejerk73

use superglue and duct tape!


kidding this is cool props to you!

menzzer37

Yeah... a 5-axis Mikron is around 500K... would make more sense to buy a few GTR's than a 5 axis for the manifold. What about doing an investment cast? Have a wax RP'd and slurried. This would most likely be more affordable. There has to be tons of foundries over there for manifolds. Keep up the good work and good luck!