Reflections on GTM over the years

phunk

We made a set of manifolds for our 350z, to put GTX3076R's on the side. They arent exactly available for order, although we could make more. These were about fitting really large turbos... probably larger than anyone else has put on the side of the VQ (rather than down below like most the big turbo VQs). These manifolds would be a pain in the *** for anyone wanting to install them to their GTM kit. Nothing would fit up correctly, and you would have to redo everything and buy new turbine housings.

If someone sent us the GTM manifolds, we could make bolt up replacements for them. Depending on how many people wanted them, and depending on what style, we could probably make a batch of them.

Things to consider:

More people (possible GB), brings costs down

Fabricated has less upfront investment and less initial time involved than cast, but has higher individual costs unless the volume is REALLY high, which it wouldnt be. Fabricated ones stay just as hard to make forever, where castings are easy as pie once the expensive tooling is built and refined.

Fabricated can be easily repaired by any welder if it ever cracked. Cast *can* be repaired, but nobody wants to do it or trusts it.

Cast is able to produce nicer smoother runners in tighter spaces than fabricated reasonably can. Fabricated can make very nice smooth runners and collectors but takes more space to do so.

We could also do a hybrid billet SS and fabricated manifold that would be SICK, but we would be looking at $$$.

If someone sends me the GTM manifolds, I can put the flange relationships into CAD and then we could consider options if you guys wanted.

Attached Images

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G37sHKS

I have extra set of gtm manifold you want them.

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phunk

Well... I dont want them! LOL... But if you want to strategically throw them away by sending them to me, I can put the flange orientation and coordinates into CAD and quote you guys fabricated replacement/upgrades.

But I cannot make any promises until they are in my hands. I know they are very compact and it MIGHT be unreasonably difficult to attempt a fabricated replacement.

All I would do is the CAD work, and machining the flanges. I have close friends that are fabricators that do that part for me. I only tell you this because I know you guys know how long it can take me to get start-to-finish on complicated products that I have to do all myself. If a fabricated manifold replacement is a realistic option, it wouldnt take too terribly long.

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