It's been a long time coming. I kind of neglected the GTR for awhile and started to get into road racing and messing around with Porsches. The parts had been all ready and sitting here for over half a year, but I finally flew out Zack - a technician who built my stuff at English Racing but now part owner at PRE Racing - to come install everything. I'm glad I flew him out because the plumbing was ridiculous with an A2W and a dry sump. It only took 5 days from zero work done until the car fired up. Now I'm really surprised now how shops can keep cars for over a year.
This build consists of:
ETS / English Racing "Little Sidekick" turbo kit (6466 Vband with cast manifolds)
ER built 4.1 with Mahle pistons and RR alum rods
3.5" Intakes, VTA dump tubes, Wastegated Y-Pipe
English Racing mechanical fuel pump setup. Keeps OEM in-tank pumps for priming and start up. Flex fuel sensor on fuel return line.
AT/AJ air to water IC with heat exchanger.
"Regular" routing of the IC pipe from the turbo outlet (doesn't go through the frame). If I had a great fab guy I would have elected to go thru the frame.
Magnus dry sump
* Keeps AC, PS, Radio
Shep stage 5 but with 11/11 clutches not 12/12
Motec M1, 6 EGT's, 2 backpressure sensors.
All other ancillary supporting mods like axles, blah blah
Goal is 1600whp at 40-42 psi. I'm hoping to hit high 2's 60-130mph and 100-150mph.
Why use aluminum rods? Honestly I debated this for a long time and still don't have a clear answer. It's like a trade off - do I try to protect the bearings or the rods? In the end I'm just gambling that I need the bearing protection more, and that other things will fail at 1600whp before the aluminum rods heat cycle out.
I think I'm going to love the A2W IC in this tropical heat. I've seen logs of it and it's pretty damn awesome even without putting in ice.
The dry sump means the oil cooler is relocated in front of trans cooler. Not ideal for trans cooling but better than no trans cooler at all. I'd have to watch trans temps more carefully.
Next up will be tuning, which I'm still trying to figure out.