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Boost Logic Release VR38 Stroker Kit for Nissan GT-R
Boost Logic heats up the GT-R tuning scene a little more this week when they launch their stroker kit for the GT-R’s high tech VR38 engine. The focus of the stoker kit is the 4340 billet steel crankshaft machined to provide either a 92mm or 94mm stroke which offer displacement uplifts to 4.0 and 4.1 liters respectively. Note that block milling will be required for the 4.1 liter kit though. The kit also comes with the following:
- Custom Cylinder Liners
- CP Forged Aluminum Pistons
- Piston Pins
- Snap Rings
- Piston Ring Set
- Carillo H-Beam Connecting Rods
- Billet Crank Shaft
Pricing is set at the $10,999 point but you’ll most definitely wanna get in touch with the guys at Boost Logic to find out more. You can do so via their website linked below…
Link: Boost Logic Website
Gruppe-S VR38 Stroker Crank Officially a Work In Progress
When the Hankook Dynamic AutoSport Gruppe-S Nissan GT-R drift car debuted at SEMA in 2009 we were fortunate enough to get an advanced preview from Dynamic Autosport’s Eddie Kim on what we could look for in terms of GT-R development. He mentioned that on top of the drift car’s chassis development they’d also be putting some focus on the VR38 development itself.
While they aren’t set on using the VR38 in the drift car just yet, (they’ll most likely be opting for a worked VQ engine), they’re very much going to be developing parts for it including a 4.0 – 4.3 liter stroker kit.
First up in the development of such a kit is to build a crank. That’s what’s happening right now and is expected to be completed in around a week. Pistons and rods up next we suppose and it should all slide nicely into their sleeved block. Should be an interesting competitor to the existing JUN 4.0 liter stroker kit which is quite a pricey item…
Link: Gruppe-S Blog
SEMA 2009: JUN 4.0 Litre Stroker Kit for Nissan GT-R, JUN Camshafts Soon
While not news, the JUN Auto Custom Kit EX 4.0 was a little mythical in nature until SEMA this year. JUN were able to field a booth with various engine internal kits and among them, the kit for the Nissan GT-R which we first heard about back in March this year.
As promised the kit comprises pistons, rods and crank. ARP rod bolts are specially selected by JUN for the kit. The price is set at a nice round 1,880,000 yen or around the $20,000 USD mark in Japan.
As for results and expected power output, as yet there is very little public data. When asked for test data we were informed that we can expect some once the upcoming JUN camshafts for VR38 become available and the whole engine is reassembled in the JUN GT-R.
While the real test data is not public, it’s known that JUN are shooting to be the first 1000hp R35 GT-R on the block using this setup with a custom exhaust manifolds sporting a pair of TD06H-25g turbos, the biggest yet to grace the VR38.
Details on the JUN camshafts should be available within the next two months so stay tuned for that.
Link: JUN Website
Images: Copyright (C) GTRBlog.com
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