GPW03, GRUNTS2K: The difference in power is (on average between different vehicles) 4 hp. HOWEVER, there really is not much benefit from comparing 2 different PEAK HORSEPOWER numbers, since you are barely in the upper extremes of your RPM band. When people tell you their horsepower numbers, you need to look at the "big" picture and check out their dyno sheets.

The real difference in 60mm and 70mm is driveability and throttle repsonse.

60mm is for the driver that will drive mainly on the street, and is looking for low-rpm throttle response. Torque is already limited in the S2000, and using a large diameter exhaust will cause the vehicle to have even less torque in the lower-rpm band. The exhaust note is also more "civilized"

70mm is for the driver that will be driving the car aggressively and/or be used on the track. The 70mm allows greater torque in the mid-high rpm band. But the best benefit that ASM has experienced is that the VTEC engagement is alot smoother. With this exhaust (and a little bit of tuning), you will be able to clear corners with the throttle on, without having to worry about the VTEC engaging (which normally would cause an increase in torque applied to the wheels and disrupt the balance of the vehicle). ASM Japan recommends this size to most of their customers because of the exhaust note, and they will love pushing/driving their S2000 even more with this exhaust.

So the answer to which is better depends on your driving style. Personally I would go 70mm.

 

The ones that are sold through retail is considered a "street" version. The actual suspension used on the Time Attack vehicles varies from year to year. Spring rates were different between the years, and valving was adjusted.

 

What's your predicted longterm reliability with the 2.4 toda kit? I know you guys can just rebuild your engine whenever, but for us mortals...=)

 

Reliability is relative to how you drive your car. Even though its a 2.4 Toda, we try to "baby" the motor when its not going all out (i.e. Time attack, Dyno, etc). We take every precaution we can to increase the longevity of the motor. Even if it means we have to take it apart. But from what we have seen from the quality of the pieces, the 2.4 Toda kit really looks like a setup that should last a quite a bit of time.

 

Bernard,

What ecu is ASM using with the Toda engine? I know the Tracy Sports 2.4 motor uses a Motec, but I have never read anything about the ASM motor's brains.

-Will

 

ASM also uses the Motec ECU for their TODA setup.

 

ASM Blog translated:

http://www.google.com/translate?u=http%3A%...n&hl=en&ie=UTF8

BTW, where's the best/cheapest place to order the ASM rear FRP bumper (non flared)?

 

J-Ondemand, see Bernard's signature for their contact info.

 

J-OnDemand
www.j-ondemand.com
Phone: (714) 313-1765 cell
Phone714) 963-8888 Ext.12 office
, and E-Mail: hishida@j-ondemand.com or bnguyen@j-ondemand.com
AIM: JondemandHiro, jondemandasm

Ask for Bernard or Hiro

 

The best/cheapest place to buy ASM is through an AUTHORIZED dealer (like us )