Fuck working on a VG anything lol
. And considering you have two of everything, I would surmise that a SR car would be significantly more straight forward to campaign than any VG.
Considering how much heat turbo cars generate, no thanks to the VG.
Source: Tracked the EFR powered SR S14 last year 8-10 times alone, with one session being 100+ degree day with 90% humidity for the entire day. I lost 5-10 lbs that day alone (water weight in the form of sweat) over the course of 4 20 min sessions. No way in hell I would want to campaign a cramped to shit VG that has two of everything........ESPECIALLY two more heat blowers and heat generators (turbines housing are great for this), downpipes, exhaust manifolds, etc. Also, the VG is a cast iron block.......the weight savings alone and balance would be great improved with a SR swap. An easy 2-400 lbs off the nose alone. Yep, you can ceramic coat and wrap everything in fiberglass, but it is still two of everything (two turbo coolant circuits....ugh! Reminds me of the stock RB twin setup)
In my years of track driving, I have yet to see a reliable VG. An ex IMSA car that was powered by a VG (300ZX from the Millen days) actually went to a modern VQ37 as they couldn't keep the VG together for extended periods. I have pictures of the said car on my HD.
I know of one successful guy who tracks his car in PA (a red Z). I think he had a wreck last year and has since fixed and returned to the track.
Also, I have watched the guys build. He went from a VG, to SR. He attempted a 2JZ, but the front sump situation would not have been ideal
300ZX SR Build