GT-R R35 Plenum Test Fitment on my VQ37HR

370Z JT

Did I hear bullit saying GTM completed the GTR manifold conversion and is ready for completion?

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jezeka777

Please do tell. Just got excited.

leighspped

Yes do tell

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Spikuh

Any updates for this?

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kpjc4eva

updates?

reldas

project was dead before it began.

ChrisUR

sorry for the ultra long delay - we were really busy during last year with customer projects so the parts for the GTR manifold laid around in the shelf and catched some dust but finally I brought my car inside the shop to continue/finalize the work !

please find below the pics of phase 1: "disassembly and test fitment" !

please be aware that this is only a very first teaser I show to the public because of so many people asked for progress during the last months I felt I owed you an update. The real work with customization, fitment adjustments etc. will follow during the next days and weeks and I keep you posted if you like. Next steps are welding the lower manifold adapter together, build a template to be able to reproduce, fabricate the new custom -6AN fuel rails, check and do all the piping/hose connections, check all clearances and finally dyno test, uprev tuning and street/track test driving.

but for now enjoy the pics of the disassembly and a first look of the GTR manifold sitting on the VQ37HR engine


VQ37HR engine with stock intake manifold still in place


removed strut bar


removed upper intake piping and plenum cover


removed upper plenum and throttle bodies


removed fuel rails


removed lower intake manifold


test fitment of the new GTR_370Z lower manifold adapter - not yet welded, just for clearance check


GTR R35 plenum loosely sitting on top of the manifold adapter - final adjustments will be made to clear oil filler cap


the hood closes flawlessly with the plenum in place - not checked strut bar clearance yet.

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KaienZ34

Cool deal, in for pics/updates.

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ANMVQ

holy BIG pics man. Was sllooww scrolling to look at these, But I'm in if it fits and makes power for the price it all would cost, Props man

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370Z JT

Can we use stock TBs and intakes?

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wstar

Don't know whether the TB's are the same diameter, but the location is definitely forward from the stock 370 location (meaning an intake system like Stillen Gen3 would need some length cut out of it, or something - it wouldn't fit unmodified).

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critical

yes, please continue with updates

DIGItonium

Sick! I zoomed out so far I can't even read the text on my screen.

How's the oil cap?

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ChrisUR

sorry for the image size - I linked them directly from facebook and was not aware they display in full resolution

the oil cap will get a bit more clearance when the plenum reaches its final position on the upper flange, I hope its enough to open and close it flawlessly otherwise we will revise the design of the lower plenum adapter to push the upper plenum back just a little bit.

the throttle bodies of the GT-R R35 and the 370Z are exactly same - the bolt pattern and the I.D. is a perfect match. Only difference the plastic plenum of our cars use an O-Ring for sealing towards the TB and the GT-R plenum will require a real gasket (OEM Nissan R35).

its correct that the position of the TB is slightly more forward - we tried to push the plenum back as much as possible but you are limited by the rear end of the engine/head, so that is about the max we can go. If you have an aftermarket intakte like STILLEN etc. you easily cut about 2 inch off the piping. For the stock intake with airboxes you should also be able to shorten the piping but that has to be tested later on. To be honest I cant imagine that somebody who is willing to upgrade his/her intake manifold runs stock air intake but you never know

Chris

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AlexRaymond19

In for results! Do you have an eta when you might have a working test model?

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