As many of you know, new model cars are being released that have drive-by-wire throttle. I believe the Acura TSX was the first Acura/Honda vehicle to sport the technology. I am just curious, has the drive by wire throttle system been put into the MY04+ s2k? I did a search and couldnt come up with anything.

Also, what are the benefits of the drive by wire throttle system? I understand the basic principle that the throttle is controlled electronically rather than mechanically but how does that translate in terms of driving and performance? Is throttle response really that much faster?

Thanks for the input.

 

The advantage is that the signal can be modified between the driver's foot and the engine. A computer can decide to give more or less throttle than the driver actually asks for.

Another possible advantage is just a packaging issue -- the wire can be routed in more possible paths than a throttle cable.

 

No, the '04+ S2000 does not have drive by wire throttle. It's still a cable.

 

it's useful for traction control but it's really aweful from my experience for rev match. stab throttle and no response. eek err

 

There is no real performance benefit. My Accord has it and I really wish that it didn't. It isn't as bad as some other cars I've driven with electronic throttle (read Toyota). It does automatic rev matching on upshifts which is pretty nifty though. I don't really have any response problems with my Accord, it's just a little fruity in first gear (sometimes things are a little, shall we say unsmooth, if I'm not paying attention).

 

Only advantage is the EMS can now have control over everything to do with your motor should something go south. It can now control timing, spark, fuel, and your TP if it wants.

 

So why do you think honda didn't decide to put it on the new model s2000? from what I am hearing, it sounds like drive by wire throttle does not have any performance benefits, only traction control benfits.

Does this mean that most "sports cars" will still use the cable throttle if it is in fact still better suited for performance? Do other sportscars use this technology (other than the 350z)?

 

There are a few advantages to throttle by wire, the biggest reason is reduced components.

With a standard throttle cable system these compenents are also needed:
Cruise control unit
cable
actuator
and all the wiring in between
traction control throttle body (if equipped)

By using throttle by wire, the PCM can do all the funtions of a cruise control unit and traction control with less wiring and weight.

NSX has had throttle by wire for years, I believe 95 was the 1st year for it.

 

My truck has drive-by-wire and is almost as fast as the S2000 (14.6s quarter mile). Maybe that's why?

It's also present on Porsche Boxsters beginning in the 2000 model year. I drove a 1999 and 2000 back to back and preferred the throttle response on the 20000. I don't know if the electronic throttle had anything to do with it, but I was able to rev-match and drive both cars smoothly. So at least in the Porsche it doesn't seem to interfere with sporty driving.

 

[QUOTE=Slows2k,Nov 5 2004, 02:52 PM] With a standard throttle cable system