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Old 10-06-2003, 08:41 AM   #46
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What's the power threshold for the OS giken Crossmission sets? I know they still have the 3rd gear mismatch but how much power can they take.
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Old 10-06-2003, 11:01 AM   #47
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Re: 2.8 HKS Stroker kit

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What's the power threshold for the OS giken Crossmission sets? I know they still have the 3rd gear mismatch but how much power can they take.
The OS Giken sets are approximetely 1/3 larger in size (thickness) and are also double syncro rings. Reece MeGreggor ran a full season with the "B" set in his R33 GTR at the strip and never had a failure. That car at the time dynoed on a hub dyno, at 843hp. I am not exactly sure what the threash hold for the set is or what they claim it to be.

The Veilside R32 Drag/Street combat car uses or used a OS Giken set and at the time were supposedly 1,200hp, but I've never gotten confirmation on that.
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Old 10-06-2003, 11:23 AM   #48
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How good or bad is the HKS tranny?
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Old 10-07-2003, 12:41 PM   #49
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Re: Re: 2.8 HKS Stroker kit

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The OS Giken sets are approximetely 1/3 larger in size (thickness) and are also double syncro rings. Reece MeGreggor ran a full season with the "B" set in his R33 GTR at the strip and never had a failure. That car at the time dynoed on a hub dyno, at 843hp. I am not exactly sure what the threash hold for the set is or what they claim it to be.

The Veilside R32 Drag/Street combat car uses or used a OS Giken set and at the time were supposedly 1,200hp, but I've never gotten confirmation on that.

Thanks for the info, if the Heat Treatments GTR ran them for a full season then that bodes well since 843hp is more then I'd ever think of making.


Real, dont quote me on this but from what I've read HKS just sells the Holinger with their name on it.
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Old 10-08-2003, 02:32 PM   #50
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The hks is just a rebadged holinger. The os gearset is rated at 750hp. As with all things it could last with more power than that or blow up with less power.
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Old 10-08-2003, 10:43 PM   #51
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Re: 2.8 HKS Stroker kit

I've seen an HKS box and it looks like a quaif box not a hollinger box. It is still an H pattern box with straight cut gears in other words a dog or crash box. The would lend me to believe that it is no different than the "Trust" box which again is a quiaf dog box. Most are 6 speed with the odd one being a 5speed. They are good for about 750hp before they just don't hold up well. Croydon Wholesalers GTR destroyed their Trust box 11 times before they gave up and went to the hollinger.

I would like to get confirmation on that also as others have mentioned it as a hollinger. It very well could be an H patterned hollinger box instead of the sequential style they are known for.
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Old 10-23-2003, 10:33 PM   #52
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I was just wondering would I have to change the intake manifold and what does everyone thin about APEX internals? I haven't seen to many people use them and I was wonder why?
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Old 10-24-2003, 01:39 AM   #53
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Intake tech for the RB26, is no where near as advanced as the American V8s, aftermarket wise. There is an intake for sale on ebay right now, but they want almost 2k for it. Price does not meet the gain, if there is an gain at all.

I have heard very good things about Apexi, its just that HKS is the one everyone hears about, because a lot of their stuff is a straight bolt on.
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Old 11-01-2003, 02:36 AM   #54
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I want to thank everone for there help and insight.

So far I've gotten a RX6B twin turbo kit and I've ordered 270/11.4 cams and a 1.5mm head gasket.

Does anyone have any thoughts on the L.S.D. do I have to change it or can I just leave that alone?
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Old 11-01-2003, 03:46 AM   #55
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From my undersatnding, you cannot change your gear ratio in the rear, unless you match the change to the front diff. The factory unit is solid, I would leave it alone.

Cams are way too big, at least in my eyes.
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Old 11-01-2003, 03:58 AM   #56
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Also you do know with that big of a cam, thats is going to be alot more $, and downtime, because the head is going to need to be machined, not sure but you might have an issue with valve clearance, even with the bigger head gasket.

There might not be an issue at all, but I just wanted to bring that to your attention, if had not looked into it.
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Old 11-01-2003, 11:42 AM   #57
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I know that there will be some issues when it comes to machining I plan on have the whole thing machined. I won't be pulling the motor tell this time next year when I repaint the car again so I have pleanty of time.

I'm still up in the air on a machine shop thought. I was told I could send it to XS, Morris suggested a shop that I'll have to call and check out. I was even told I could send it to a shop in Japan I don't know about that one though.
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Old 11-01-2003, 11:49 AM   #58
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Sean, of course has been around GTRs alongtime. If suggest XS, I would not hesitate to go with them.

Good Luck with the build.
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Old 11-01-2003, 12:14 PM   #59
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Sean said I should use King Motorsports in Sullivan Wisconsin but I know XS can do the work too.
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Old 11-21-2003, 07:10 AM   #60
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Re: 2.8 HKS Stroker kit

OS Giken has 6 speed sequential transmission which can handle 1500ps
http://www.osgiken.co.jp/pro_spec/rb26sq-tm.html
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