Tag Archives: N1

Evasive Motorsports’ Latest Race Car Project

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We are proud to once again work with Evasive Motorsports and their latest project car, an E46 BMW M3. This vehicle will be a dedicated Time Attack vehicle.

Mike Chang of Evasive Motorsports previously used this car as a daily driver. But I imagine, especially after putting in a lot of seat time in their Limited AWD Class CT9A Evolution and Street FR Class AP1 S2000 (of which they both clocked the fastest times in their class at last year’s Super Lap Battle), the E46 certainly found itself a new job in life.

Fortunately for us, we’ve had some experience with the E46 M3, developing a one-off damper kit for use in the Super Taikyu series. In fact, we obtained a set directly from TEIN R&D for Evasive to work with while they dial in their car for track duty. These 3-way adjustable dampers are a far cry from anything street compliant as they are designed for 30+kg/mm springs front and rear. *We are now developing a Super Racing type damper kit for this chassis with rates much more suitable for track conditions we see Stateside. Our in-house engineer Shuichiro will be working side by side with them during this development.

Front dampers installed

Front and rear damper w/ spring assembly

Stay tuned with us and Evasive Motorsports as this vehicle continues to develop throughout the year!

I-spy TEIN

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While make my daily rounds through car industry blogs, I came across this sexy beast. Spoon Sports NSX-R featured on Speedhunters blog.

Photo from www.speedhunters.com
Coming from mainly a Honda background, of course anything Spoon catches my attention. This high revving, naturally aspirated and track ready NA2 looks like a blast to drive.

Photo from www.speedhunters.com
Whats this?! Yep this vehicle is running our Aluminum N1 Coilovers. This full length, mono tube suspension offers separate 20 x 20 way compression and rebound adjustment (available in either aluminum or steel construction). The stroke and valving have been specifically designed for circuit racing conditions to provide maximum grip. *For Race Use Only

Photo from www.speedhunters.com
For this full feature and many more, please follow the Speed Hunters Blog

Not your normal RSX

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Congratulations goes to Doug Macmillan of Hondata for setting 5 new class records at the 2010 Bonneville Speedweek. He and his wife broken 9 class records between their two cars.

This particular RSX is powered by a 1.5L K20, supercharger and plenty of nitrous. Doug’s record setting Acura sits on a set of customized N1 dampers. Usually used for road racing TEIN engineers revalved and resprung the dampers per Doug’s requests. The result is a car that Doug says, “The RSX has never handled so well. Perfectly straight and no drama.”

N1 dampers were chosen because they can obtain a very low ride height, Mono Tube construction is less prone to viscosity breakdown in extreme heat and because the construction is very light weight.

Go to Hondata’s website for a full recap HERE.

All images provided by Hondata.

N1 Racing parts on a street driven Civic Si Sedan

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Mike of Evasive Motorsports has successfully been using our Mono FLEX coilovers on his street/ track Civic Si Sedan. The car has finished well in the last few events (class win at Super Lap Battle Finals 2009 and class win at Redline TA 2010 Rd.1) and Mike wants to keep it that way. Mike already added a larger diameter sway bar and a revalve but still wanted more vehicle rotation. So Mike and our engineer agreed the next step was to try some parts from our N1 race kit.

The parts arrived last Friday and Mike brought the car in a few days ago for us to install the parts and perform the needed revalve to make it all work.

The N1 kit is used on many cars competing in Japan’s Civic One-Make race series. Normally these cars use spring rates of 20kg front and 26kg rear. Modifications are very limited to keep the racing tight.

We ONLY used a few of the parts from an N1 kit:

N1 pillowball rear spring seat, Special 20kg rears springs, N1 HAS (Height Adjustment System)

The N1 pillowball rear spring seats are NICE (you can see that the top section can pivot). The spring can now better match the travel radius of the lower control arm and allows the use of a straight spring which are readily available in various sizes and rates. Normally a barrel shaped spring is used for more spring stroke but alternate spring rates are not available.

To make this all work we needed to change the stroke and damping force of the rears dampers. Then in order to balance the car front to rear we increased the front spring rate to 16kg, shortened the stroke, and increased the damping force.

The end result is very aggressive spring rates, short suspension travel and race car like handling. When we took the car out for a test drive on local roads and highways the ride was surprisingly smooth. A passenger would never guess that the car has such high spring rates. The car is firm but not bouncy. It absorbs the bumps well and settles quickly for optimal grip.

A few more pics of the Civic Type-Rs TEIN sponsors in Japan. These cars look so good with just livery and being slammed.