I've been driving our new MCS around town for about 5 weeks now. But I've yet to autocross it (won't be until next season). I've noticed that it's kind of difficult to accelerate smoothly out of a turn. When/how the supercharger kicks in is kind of abrupt. (on/off switch)

Is this a problem that can be fixed? Or do I just need to learn to drive around it?

I'm sure glad we got the LSD, that's got to help!

 

It's not the SC, sounds like you may have DSC turned on?
Try turning it off and accelerate out of the same turn.

Joe

 

No, it's the opposite problem. The power comes ON abruptly. Besides, we don't have DSC on our car. (we do have ASC though.....and I quickly learned to turn that off)

But that's for the suggestion!

 

The supercharger is always "on."

 

The power curve of the supercharger is very linear, my suggestion would be to work on smoothing out yr right foot

 

Try being smoother with your throttle application.

The SC is not going to work at lowest RPM and really starts to do more after 3000-3500 RPM.

You might be noticing not much happening in the 1000-2500 RPMs then a big surge once rpms climb.

Stay in the lower gears longer and keep up RPM level.

Go for a ride in an MCS owned from someone who has done track and autocross alot and see how it feels. Any different or the same?

Here is an autocross video with an MCS and 17% pulley.
http://media.putfile.com/Run3DKMini
Do you notice the same ON or OFF SC?

 

I think that's the "problem". Driving around town, I don't run the car in the high rpm's like I would on an autocross track (been autocrossing 17 years). But I've never owned a superchanged or turbo car. I'm guessing the "surge" you're talking about is just something I need to get used to.

I don't notice it in the video. That's a pretty tight track, and what I notice is the driver jumping on the throttle exiting the tight turns.

 

When you say accelerating out of a turn, are you talking about from a dead stop or are you already moving? I've noticed a surge in power from a dead stop when accelerating, but at speed, it's not noticeble. I'm guessing it has to do with the ECU program, being that the throttle pedal is elctronic and not cable driven. I'm curious to know is an aftermarket ECU flash helps with this hesitation?

Joe

 

If you think the Supercharger has a power surge lag, wait till you drive a turbo. The 07's will have more lag, but it'll be interesting to see how much.

 

It's not the problem I was talking about originally, but yes, I've noticed the same hesitation. It's almost like the engine floods for a second. I just have to remember to rev it up a bit more than normal before I let the clutch out.

 

I have to agree with what the others have said. You really have to concentrate on squeezing in the gas coming out of turns. If you stomp the gas it will be wheelspin city!! It is even more important when you mount lightweight wheels and shorter R-compound tires.

 

It might not be related to the SC, but more to the bypass valve. Even when smooth on the accelerator, there is a surge when the valve slams shut.

 

I was extremely consious of this my first few laps at the track (HPDE), consequently I paid attention to it more and more as I racked up some laps by the end of the first session I was acceptably smooth, and by the end of the day I had the feel of it so down pat I haven't noticed it since just focus on easing in the pedal, with the elctronic vs. direct linkage gas pedal it takes some adapting to not be going from 'nil to full out all the time, but once you switch life gets much more controlable. As as you go around town and get on and off highways, just focus on being smooth, smooth, smooth (something I keep saying in my head) and ti will become second nature soon enough.

 

This is the same conclusion I've finally come to. I'm continually refining my technique to minimize this effect. I try to think of my initial throttle input in terms of credit card thicknesses. This seems to help, but when the bypass valve closes, there is a power surge.

 

Bingo! This is what I was talking about. It wasn't a complaint, just an observation. I'm glad to hear that other people are dealing with it by adjusting their technique.

I think it's worse for me because I'm coming from a '99 Miata where you can pretty much floor it anywhere.