OS Giken clutch - anyone running one on a 6-speed NA2?

[DAYTA]

I have a 1997 NA2 6-speed and I've been toying with the idea of going turbo, which in turn has necessitated research into clutch upgrades.

I plan to stick with the stock block so my power goals are modest (400whp, 325wtq). The car will also be street driven - no hard launches, mostly backroads driving with a little stop-n-go around town. I would prefer a lighter pedal feel.

I have heard really good things about the OS Giken clutch/flywheel combos, specifically the STR series. However, I see a number of NA1 guys running them but no mention of any NA2 applications thus far. In part, I think this could be down to the fact that the OS Giken clutches are designed to fit the 5-speed transmission, not the 6-speed.

I spoke to OS Giken directly and the tech there said that in order for their clutches to fit the 6-speed, I would have to replace the input shaft due to the different spline design. The OS Giken kit is already expensive as it is, replacing the input shaft would add substantial cost (parts + at least 3-5 hours labor). That said, if the clutch is worth it I would still consider it as an option.

Any other street-friendly NA2-compatible clutches I should research?

 

[Larry Bastanza]

Have you investigated the SoS sport family of clutches? I am sure you will find a performance fit, also you will get a reasonable pedal feel , and they are designed for both the 5/6 speed trans, without any update to the trans.

Give them a look. I have installed many and have had very good luck with reliability and fitment over the years. Not to mention reasonable cost.

My $.02......

HTH,
LarryB

 

[Honcho]

I'm taking a hard look at the Street Master (Grand Touring) for my next clutch, but I have NA1. Billy (stuntman) and Regan (Ryu) both run the OSG and like it. However, I think the requirement for the NA2 NSX-R input shaft would make the OSG cost-prohibitive.

 

[DAYTA]

Have you investigated the SoS sport family of clutches? I am sure you will find a performance fit, also you will get a reasonable pedal feel , and they are designed for both the 5/6 speed trans, without any update to the trans.

Give them a look. I have installed many and have had very good luck with reliability and fitment over the years. Not to mention reasonable cost.

My $.02......

HTH,
LarryB

I was considering them in the past, but recent stories regarding their reliability have made me apprehensive. I am on a relatively tight budget so I can't afford to keep switching out clutches in case they fail.

Other than RYU, does anyone have any experience with Clutch Masters clutches for the NSX? I had an FX300 on my last boosted car and I loved it - light pedal feel, easy to modulate, no slipping.