Archive

Posts Tagged ‘vr38’

Breaking: GT-RR Tease Upcoming VR38 Crate Motor from Guess Who… ?

August 16th, 2010

What does an Aston Martin One-77 have in common with a Nissan GT-R? Not much frankly, until now if the latest teaser from GT-RR is to be believed – and I’m told it certainly is. I’m under strict instructions not to say any more than what’s in this one page teaser but I’ve heard about this website called Google that is good at searching for information about things these days…

That said, this motor is also built in partnership with the same company that builds motors for the likes of these GT-Rs below so I may as well use this excuse to spam my favorite wallpaper sized photo from my collection…

More Info: See GT-RR.com Website for Contact Information

13 comments

GT-RR / Bulletproof Automotive, Parts / Manufacturers, Tuner News , , , , , ,

HKS Forged Pistons and Connecting Rods for Nissan GT-R

August 6th, 2010

HKS have released their awaited forged pistons and conrod package for the VR38 engine recently as a compliment to their GT800 turbine upgrades. Designed to offer high durability, the HKS pistons are also designed to cope with much more power than standard.

Before getting too steeped in the technical specs, let’s run over the highlights of the HKS forged piston product. These pistons offer the same bore x stroke of the OEM pistons meaning the same displacement volume and that they’re a direct fit. What does change is the crown volume (concave) which increases from 4.49cc per cylinder to 8.01cc. This has the effect of decreasing the compression ratio from the standard 9.0 down to 8.7. Thanks to the forged hollow channel construction, the HKS pistons also weigh in at 25 grams less than the OEM items (420g vs 445g).

For full specs for the pistons and the conrods see the data below from HKS. For pricing, contact your HKS distributor for local pricing but expect to pay around 367,500 yen if you’re in Japan for the full set.

  HKS Product OEM
Bore x Stroke 95.5 X 88.4mm 95.5 X 88.4mm
Compression Ratio 8.7 9.0
  Gasket Thickness HKS t 0.8 t 0.80
Total Displacement (cc) 3799 3799
Piston Bore 95.5 same
Compression Height 34.30 mm same
Concave Crown Volume 8.01 cc 4.49 cc
Material Forged (hollow channel) Cast (hollow channel)
Reference Weight 420 g 445 g
Pin Dimensions 23 X 60mm 23 X 62.5mm
Rings Dimensions TOP B 1.2 mm same
Dimensions SEC B 1.2 mm same
Dimenstions OIL B 2.0 mm (3 pieces) same
Conrod Small End Dimensions 23mm same
Big End Dimensions 59mm same
Length 165.1mm same
Material SCM treated Cast Steel
Reference Weight ~722 g ~724.6 g
Weight Variation less than 1.0 g
Bolt M9 X P1.0 / 14.9T same

Link: HKS Forged Pistons and Connecting Rod Release

Comments Off on HKS Forged Pistons and Connecting Rods for Nissan GT-R

HKS, Parts / Manufacturers, Tuner News , , , , , , , , ,

Jotech Gives us a Peek at a Darton Sleeved VR38 Block

April 27th, 2010

Always good to get a look at the finished product, after first hearing about Darton having sleeves for the VR38DETT some time back now, here’s the first photos I’ve personally seen of them actually fitted up.

These photos are courtesy of Jotech Motorsports based in Texas who are now offering the sleeving service for $1,100 in labour plus $1,325 for the sleeves themselves provided you deliver them your OEM block. If you want them to provide a block it’s another $3,231 on top.

Hit up their website for their contact details linked below…

Link: Jotech Motorsports Website

Comments Off on Jotech Gives us a Peek at a Darton Sleeved VR38 Block

Parts / Manufacturers, Tuner News , , , , , , , , , ,

Forged Performance Announce the VR38 FP1 Short Block for Nissan GT-R

April 21st, 2010

It keeps getting more interesting in the built VR38 world with another newly announced complete, built, short block hitting the market in a big way. This time hailing from much closer to home for many of you, Marietta GA, comes the Forged Performance VR38 FP1 short block for Nissan GT-R.

The Forged Performance FP1 Shortblock strengthens the GT-R engine for maximum reliable power! We start with a BRAND NEW VR38 block casting, and all new OEM parts. The OEM rods and pistons are replaced with Pauter forged rods, and our own spec Arias Extreme Duty pistons. The block is precision CNC machined to accept a new cast iron cylinder liner. The cast iron liner allows for the long term reliability and exceptional strength when running forged pistons at very high power levels. The is the same proven strategy used in numerous 1500whp+ builds in the exotic car world. After the liners are fitted the cylinder walls are bored and honed to .0001 tolerance and the block is decked flat. The liners are purposely left .001 above the deck for headgasket seating and block expansion purposes. This block is engineered to handle 1000whp+ easily.

Specifications

  • Brand New VR38 OEM Block and Crankshaft
  • Pauter 4340 Billet Connecting Rods w/ ARP Rod Bolts
  • Forged Performance Spec Arias Extreme Duty 2618 Alloy Pistons (9:1 CR)
  • Forged Performance Spec Cylinder Liners
  • New Nissan Main, Rod and Thrust Bearings
  • Polished Crankshaft
  • Balanced Rotating Assembly
  • Assembled In-house by our Professional and Experienced Engine Builders

Way to go guys, another great and home grown product. If you’re interested in one of these you can expect to pay $12,090 plus freight including a brand new block.

If you’re supplying your own block, expect to pay less, around $8,590.

Hit up the Forged Performance website or contact them directly if you have any more questions, the guys are only too happy to help!

Link: Forged Performance Website

Comments Off on Forged Performance Announce the VR38 FP1 Short Block for Nissan GT-R

Forged Performance, Parts / Manufacturers, Tuner News , , , , , , , , , , , , , ,

Tomei Poncam Camshafts for Nissan GT-R Now Available

March 24th, 2010

Prior to Tokyo AutoSalon 2010 we had seen that Tomei were on the brink of releasing these camshafts for the Nissan GT-R’s VR38. We’re happy to announce that Tomei has released them and they’re now available.

The Poncams are designed specifically as a drop in upgrade to run with the completely standard valve train. They’re said to give VVT enhancements across the entire rev range. Exciting stuff, the feature list reads as follows:

  • Made from special materials specifically for the VR38DETT
  • Precision grinds
  • Valve timing has been pre-set
  • Compatible with the stock valve springs
  • Best turbine response
  • Variable Valve Timing compatible
  • Stable idling
  • Best overall balance

As we suspected earlier on in the year, the Poncams are quite a big step up for a drop in upgrade. The specs are:

  • Intake; 256 Duration x 10.20mm Cam Lift
  • Exhaust; 264 Duration x 10.50mm Cam Lift

You can pickup your set at your local Tomei dealer listed over on their website. MSRP is set at the $1600 USD mark.

Link: Tomei Dealers Worldwide

Comments Off on Tomei Poncam Camshafts for Nissan GT-R Now Available

Parts / Manufacturers, Tuner News , , , , , , , , ,

Gruppe-S VR38 Stroker Crank Officially a Work In Progress

February 18th, 2010

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

Comments Off on Gruppe-S VR38 Stroker Crank Officially a Work In Progress

Parts / Manufacturers, Tuner News , , , , , , , , , , , ,

MCR Head Gasket Coming Soon for Nissan GT-R

February 17th, 2010

MCR have got their first trial head gaskets in for test fitting. They’re bolting up their own VR38 which they’ll then pressure test. If all goes well the guys are looking at releasing this pretty quickly.

When it’s released it’ll be just the second head gasket on the market behind the Cosworth item which was first seen at SEMA last year.

We’ll give you guys a heads up when we know pricing but it might be one to add to your shopping list if you’re doing engine work in the near future…

Link: MCR Website

Comments Off on MCR Head Gasket Coming Soon for Nissan GT-R

Matchless Crowd Racing (MCR), Parts / Manufacturers, Tuner News , , , , , , , , ,

Mine’s Complete Engine for Nissan GT-R: First Impressions

January 30th, 2010

Regular readers will remember that we were fortunate enough to be able to pay a visit to Mine’s headquarters in Yokosuka, Japan recently. It was the Mine’s Meeting Event that we were invited along to to get the scoop on their latest parts including their amazing new dry carbon front bumper.

Some readers with long memories will also recall the brief update Mine’s released back in November 2009 about the first test day after completion of their very first Mine’s Complete Engine. It was great to read their excitement over the finished product which they had been planning, designing and building for quite some time. Moreover, I was intrigued to experience it for myself to see if the end result was as good as a sum of it’s parts. So lets step back to the beginning to talk about the Mine’s Complete Engine and what exactly it is.

To understand the complete engine you should first start with understanding the Mine’s tuning philosophy. Since day one, tuning has been about feeling for Mine’s, and one feeling above most others in particular – response. The ability to get up and go is valued above almost anything at Mine’s, and that includes raw horsepower numbers. So when tuning the VR38, a big displacement engine with small turbochargers attached, that is to say already quite perky, Mine’s have to go to extremes to improve. This is, in a nutshell, what they have done.

The engine is built from the ground up using lightweight components. The VR’s cast pistons are replaced with forged lightweight items sourced from Mahle. These are forged from aluminum silicon alloy and are coated to lower friction. These are also combined with lightweight pins to bring down the total piston assembly weight.

Next, the stock forged conrods are upgraded. For this task, Mine’s chose ultra-lightweight titanium I-beam conrods. Combine these with the lightweight piston assemblies and each cylinder is down 320grams of reciprocating mass, a saving of over 1.92kg (4.232lbs) spread out over the six cylinder VR38DETT engine.

Working our way up to the head now where the Mine’s Super Chamshaft Shore Pro are utilized. An ideal match for the turbos used, they help the engine breath better. You need to move a lot of air quickly to keep an engine like this happy so proper camshaft choice is crucial to the end result.

The Mine’s demo car is also obviously fitted with pretty much the entire Mine’s R35 GT-R catalog. We should touch on these modifications too to ensure everything is detailed properly.

Ensuring air can get to the engine to begin with is another big focus of the Mine’s complete engine. Painstaking attention has been paid at every stage and to get an full picture of what we mean. lets describe the intake airflow. Starting at the beginning; air enters the system at the standard airbox where it’s filtered with a Mine’s VX-Air filter. It moves along to the Mine’s Titanium Suction Pipe into the turbo compressor side where it’s compressed and forced into the Mine’s Titanium Intercooler Hard Pipe kit. Then it’s off to the intercoolers to be cooled and back out towards the engine again. It then travels via the OEM piping and hose setup properly reinforced to keep it from expanding or popping off by the Mine’s Induction Support and Clamp kit.

Finally, before it enters the intake plenum, it passes through the Mine’s High Flow throttle body which has been smoothed and tweaked in just the right ways to provide as little obstruction as possible.

Phew there’s a lot there but just about the only part Mine’s hasn’t improved in there is the turbochargers themselves, and we’ll get back to that later because we’ve some secrets to let you in on there.

Fuel delivery is just as important, so no chances are taken here either but in comparison the modifications seem simple and perhaps that is part of their beauty. The standard fuel pumps are upgraded with the Mine’s variety. They feed a set of twin upgraded Mine’s Fuel rails into six larger than standard 650cc fuel injectors. While these aren’t giant injectors, they are perfectly sized for the desired output.

Driving the whole thing at an electronic level is the Mine’s VX-ROM with Mine’s legendary tuning ability in full force under the hood.

So that’s how it’s put together, but how does it go? Well to say quick is putting it mildly. It’s a fair bit insane actually.

Shortly after our arrival at Mine’s workshop we had a chance to go for a spin in it. With Niikura-san behind the wheel we took off at a brisk pace out on to the freeway for a short thrash. I guess the first impression you really get is surprise, it’s also the look on your face when you’re told that the Mine’s GT-R is making around 650hp. 650hp shouldn’t be so instant, there should be some spool, some lag before the bulk of the power is delivered. Even if it’s imperceptible, surely it should be there? There just isn’t any time to think about that though as we quickly blow through another gear on our way out of town.

The real key to the Mine’s setup is the instantaneous usability of the power. That is what is most attractive and what would be addictive. The car seems connected more aggressively than ever before to the driver’s right foot. From low RPM in high gears, the GT-R already shines out as atypical for a turbo car but the Mine’s car redefines what is possible to do with the right selection of parts and know how.

So yes, the Mine’s engine in it’s current packaging in the Mine’s demo car is making about 650hp. It does not seem to stress the car at all and it feels like daily driver material when you’re not stabbing the throttle to experience the rush again. The transmission is mildly tweaked in this car with some one off coolers (two transmission coolers) and and a piston oil seal upgrade, the TCM is also upgraded with the latest code from Nissan but is otherwise quite standard.

So it can be well and truly concluded that Mine’s have reached their goal of a 600ps+ response master Nissan GT-R. We’d like to see it hit the track now to set and break some benchmark times. Mine’s current best lap with the Spec-X 6.0 kit at Fuji Speedway is 1:49.782 with Eiji Tarzan Yamada driving, we need to see what the new record will be and we’re assured that this test is coming soon.

So will that be all we see from Mine’s in terms of power modifications? Hardly! They’re already in serious development of a turbocharger upgrade that is set to easily crack 700hp while still maintaining the ultimate response of the standard setup. We’ll keep you posted there.

The Mine’s Complete Engine should be ready for sale in the early part of this year so look out for the announcement. Until then you can set your desktop to the top photo in this post to remind you to check back every so often…

Link: Mine’s Website (English)

11 comments

Mine's, Parts / Manufacturers, Tuner News , , , , , , , , ,

Tokyo AutoSalon 2010: JUN Camshafts TypeZero and Short Block with Liners

January 21st, 2010

Well the work-in-progress JUN 1000ps build with big cams is a great thing no doubt but not everyone is shooting for that level of ultimate power so they need a camshaft that will operate reliably with a more standard engine build. To fill that need, JUN Auto have produced this High Lift Camshaft TypeZero for the Nissan GT-R’s VR38DETT suitable for use with the standard ECU.

These camshafts feature identical duration and lift on both intake and exhaust sides which is 256 degrees duration and 10.3mm of lift. Not the 264 degrees and 10.5mm lift we heard for their big power build.

The price for these is set at a interesting 84,000 yen in Japan and about the $1,200 USD mark over in the states.

Update: You can now pick up a set for lower than our estimate, just $1150, online @ GT-RR

On the short block front, JUN Auto were also showing off their VR38 bare blocks with liners fitted. This is the kind of thing useful when you’ve spent the cash on the JUN Auto 4.0l stroker kit.

No pricing on the short blocks with liners just yet.

Link: JUN Camshafts, buy online @ GT-RR.com
Link: JUN Auto TypeZero Camshafts Website
Images: (C) Copyright GTRBlog.com

1 comment

JUN Auto, Motor Shows, Parts / Manufacturers, Tokyo Auto Salon, Tuner News , , , , , , , , , , , ,

Gruppe-S / Dynamic AutoSports Sleeve VR38 for Monster GT-R Engine Build

December 12th, 2009

gtrblog-sema-hankook-111

Planning to be in the running for one of the toughest GT-R engine builds to date, Gruppe-S has been working with Darton on a set of sleeves that should see them to 1000hp without trouble.

You may recall that we mentioned their stroked VR38 ideas after we first heard about them at SEMA this year. Well with any luck, this block right here will be the first VR43DETT sleeved and ready to go. Yep that’s 4.3 litres of displacement if all goes as planned.

There’s a lot more too it than just a block of course and they guys at Gruppe-S have also teamed up with JE Pistons to create a fully billet piston for the VR38. We’ll keep you updated as more details come to hand.

Link: Gruppe-S Engineering Blog / Gruppe-S Website

gruppe-s-vr38-003

3 comments

GTR News, Parts / Manufacturers, Tuner News , , , , , , ,