Subject	GTR - 300ZX plenum comparison
Posted by	vorpalZ on February 01, 2016 at 10:33 AM
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Message	Helped another Amateur Z member work on his 2012 GTR this weekend. We changed out injectors, and while we had the plenum off, I had another 300ZX plenum laying around. We took a few comparison shots: Half the weight, about a third smaller, integrated balance tube bolted to the rear: Removal and replacement were a piece of cake. No PCV ports or water lines at all, just vacuum lines and some ground lugs. Took 1/2 hour to pull. Much bigger throttle bodies, smaller side chambers with shorter cross flow runners: runner ports smaller than the Z, runners thicker:
Follow Ups	GTR - 300ZX plenum comparison - vorpalZ 10:33:29 02/01/16 Nice! If only the VG had heads like the VR... - The Hawk 10:39:43 02/01/16 Yep. I looked in the lower plenum at the cylinder heads of - MixManMash 11:02:24 02/01/16 how much more massive, proportionally speaking? - LJZTT 19:38:23 02/01/16 I didn't measure exactly. But port sizes on modern engines - MixManMash 20:51:23 02/01/16 Also has to do with variable valve timing (n/m) - ztunerz 20:51:48 02/02/16 For sure. VVT sure has changed from the days of VTC. (n/m) - MixManMash 10:10:04 02/03/16 I don't have specific #'s but...... - The Hawk 12:39:57 02/03/16 Isn't that kind of what I said? (n/m) - MixManMash 15:10:39 02/03/16 Yes and I was just elaborating.... - The Hawk 18:00:08 02/03/16 Thanks for posting...always curious about that (n/m) - Madhatter10-6 10:44:14 02/01/16 Very cool to see! - Polish 11:07:22 02/01/16 Are the holes the top/end of each runner for idle air? - cherry 12:12:50 02/01/16 good question.. or egr...pcv... (n/m) - LivinTheDream 15:04:05 02/03/16 Thanks for posting!! (n/m) - OverZealous (CT) 19:02:58 02/01/16 Re: GTR - 300ZX plenum comparison - induetime 10:04:14 02/02/16 Z32 plenum was designed for the NA and works fine for - not4resaleZ 14:02:39 02/02/16 Re: GTR - 300ZX plenum comparison - Bigwill837 14:11:35 02/02/16 The phone in your pocket has more computational power now - Dallas DamonZ 15:11:49 02/02/16 Correct. - MixManMash 16:14:23 02/02/16 GTR was designed with the latest supercomputer... - vorpalZ 16:21:52 02/02/16 Yes, but the Z32 was on a Cray-2, which reads Cray-Z. Lol. (n/m) - MixManMash 18:34:36 02/02/16 didnt GTM build and cast a lower intake manifold to run the - Dane (Houston) 19:38:53 02/02/16 That's pretty cool. - Dallas DamonZ 23:51:14 02/02/16 We would just need a mad scientist to make those throttle - Polish 00:19:26 02/03/16 Haltech Elite 2500 + OZMO dual TB controller = done. - 96300NAZ 12:32:30 02/03/16 ^While I will be following that path as well - -Grimm- 14:05:51 02/03/16 Go on... How would this work? - Polish 00:07:56 02/04/16 All you would need is a microcontroller and... - -Grimm- 10:18:56 02/04/16 What about some crazy rigging to use stock or modified - Polish 15:38:27 02/04/16 Everything is possible - -Grimm- 17:01:38 02/04/16 ^exactly. Main one being the tuning benefits. But... - 96300NAZ 21:37:55 02/04/16 On the SZ blog there is a turbo 370z with the GTR plenum (n/m) - puchy 07:17:12 02/03/16 quite cool (n/m) - Adam (NoVA) 07:42:06 02/03/16 They did. GTM is no longer in business though... - MixManMash 10:12:40 02/03/16 I'd stay well away from GTM/ Gamma... - vorpalZ 11:33:44 02/03/16 I'd like to see a comparison between the intake piping - not4resaleZ 09:31:34 02/03/16 Someone did a pretty thorough teardown last winter - BlackholeZ 23:04:10 02/03/16 found it: - BlackholeZ 23:09:36 02/03/16
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