And BTW, the VSA kicks in even without showing you the "!" mark on the dash. If you nudge the maximum allowed slip angle, it'll trim it off gently and not show you on the dash. If you muscle past the limits of grip (like WOT VTEC in the rain) it'll blink at you.

Just FYI to the people who think "they're never invoking their VSA."

They might be without knowing it. That being said, I leave mine on for street driving.

 

Yes sir, the thread is a year old, sorry for bringing it back up but I've been very interested in VSA, TC, DBW, and CDV. All of these features are on my 07' and I was getting regretful that I purchase an 07 vs. an 05. After reading everything on it, I'm 100% satisfied that I have an 07 now. The DBW is very sensitive to throttle pressure and is okay with me. There is no difference vs. cable to me. Even blipping the throttle is very easy to do and match revs.

The only question I have is about the DBW & CDV and how it affects spirited driving. I do notice that when letting off of the gas petal during hard runs still feels like there's a delay. Meaning the revs are still going up even though it "seems" like I've let off the gas. So when I'm shifting at redline, it still goes a little further after letting off the gas. I wonder if I'm just not letting off all the way, or DBW is delayed in this situation. Also, the upshifts do not feel crisp with the DBW and CDV. Could this be that VSA is on and activating even without the "!" blinking as you've mentioned or should I adjust my driving habits?

 

On upshifts, turn off VSA and see if you notice a difference. If you should get wheelspin, it will cut you off a little on upshifts. Otherwise, I don't expect it will change anything, but if you turn it off and try it you'll see for yourself.

I don't know on the off-throttle delay; I've never paid a ton of attention to it. That sounds like a potential DBW thing. Of course, FlashPro could remedy it as it would be tied to an ECU program setting.

 

VSA on = safer, VSA off = faster.

However VSA on is plenty fast enough to have fun on a winding road. It's still fast enough to allow you to drive like a jackass and put others in danger.

No reason to turn it off on the street in my opinion.

I view VSA a lot like this - Everyone that hates it and thinks they don't need it, I wish they had it. Everyone that is cool with it and leaves it enabled, I'd be fine with them turning it off.

 

Based on what you described, it sounds like a DBW and CDV "issue," not VSA. When I say issue, I believe this is how it was designed, so it's not really an error, but merely something you have to live with.

One of the big reasons for DBW is emissions. In a traditional cable system, when you slam on the gas, and immediately let off the gas, the throttle plate slams shut, spark plugs stop firing, so you often end up with an incomplete burn, or a little gas left over in the cylinders that gets unburnt. The eco friendly folks are deeply offended by this, and hence this is why there's the little bit of "delay" when letting up on the throttle and your revs don't quite drop as quickly as you'd like. The computer essentially keeps the spark plugs firing for a split second longer so all the fuel is burnt, which causes the "delay."

The CDV is another issue and it seems to be a subjective sort of thing where it varies solely dependent on the person. That could be adding to the lack of "crispness" that you're feeling as well.

 

We have an AP1 with lightened flywheel and upgraded clutch. We also have a bone stock AP2.

My best guess is that the "revs still climbing" might be the heavy flywheel and the inertia as you're WOT to redline. I don't notice a "hang" in normal driving.

The lack of crispness, I think may be the same issue. My shifts are crisp when I let the flywheel rotational speed come down to match the next gear.

If you want a "bite" that can chirp tires in between shifts... you'll have to do clutch and flywheel. But don't forget to put some money aside for a new differential when the stock one breaks.

 

[media]http://www.youtube.com/watch?v=NiZjeeMExY4 [/media]

 

Jeeps scare me.

 

Heh heh. I like the last paragraph!

I also feel that if you are driving fast enough to trigger VSA on the street, that means you're driving too fast. But I say that in reference to injuring yourself or others. If you don't care about injuring yourself and you're on a road with no others, then do whatever you want.

I sure wish I had it a few years back in my 95 GS-R.

Driving on the freeway (I-57 north just before CSUF) at about 65mph in typical heavy LA traffic...a 8inch diameter chunk of rock bounces out of a dump truck about 20 car lengths ahead. I watch it bounce around, bounces over the old VW Beetle in front of me and comes directly at my face. I swerve to the right when its about 10 feet in front of me. It misses me completely.

I swerve about a foot into the lane to my right, but I don't know if there's any cars in it, so I swerve back to the left into my own lane. Well, even though I had a well modded suspension with great tires, the fun began. Rear end breaks loose, swerve right, left, spin a 360 into the fast lane, then the carpool lane and plant my nose, then the tail, into the center divider. Come to rest facing oncoming traffic in the carpool lane. Couldn't see an f-ing thing for about 10 sec until the airbag smoke cleared.

Unbelievably I didn't hit any other cars while spinning. The only part of me that got hurt was my ankles! I had so much time to think...it was weird. But I braced my feet on the floorboard for impact, and that's why I hurt my ankles.

This is the EXACT type of accident stability control attempts to avoid. If I had it, the accident probably wouldn't have happened.

Also, some people are forever traumatized or sensitized to driving after an accident like this...for me, it was the opposite. That was the last time I was ever "scared" when driving.

 

I had the s2k out last weekend for an autocross. l It has bf goodrich m + s tires on it....stock size. My car is a 06 and stock. I found getting the car off the line was a chore. In m CM I used to bump the car to get it moving then lift the brake and punch the gas and got a slightly smokey take off. Although it had an open diff it would spin both tires.

So how does it work? Should I turn off the vsr? It feels like the vsr is causing it to bog down on take off. I'd love to be able to launch with real authority as I did in the FF.