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-   -   SynchroRev Match Feature on 370z (http://www.the370z.com/nissan-370z-general-discussions/1543-synchrorev-match-feature-370z.html)

semtex 01-24-2009 05:26 PM

Quote:

Originally Posted by speedworks (Post 23664)
Funny story on this feature; when I drove my car last night, I purposely slowed a little so that I could see how the feature worked, and when I did it, I intuitively blipped the throttle, so I missed my opportunity to hear/see it work. I need to retrain my brain a little before I use it appropriately.

Yep, I did the same thing at first. But I've had mine for two weeks now and I'm STILL adjusting. My big thing now is that I'm not letting the clutch back in quickly enough. You see, I think subconsciously, my brain is sensing that I didn't blip the throttle, hence I'm instinctively letting the clutch back in gently. Because what happens normally if you downshift w/o blipping the throttle? You get that big initial jerk, right? And the only way to mitigate against that jerking if you're downshifting w/o matching revs is to let the clutch back in gently. So here's the thing. If you let it back in too slowly after the engine has blipped (via the SynchroRev Match), it defeats the whole purpose of the rev-matching because by the time you let the clutch back in, the revs have already dropped back down, and you end up with a jerkier downshift! So now I have to consciously remind myself to just drop the clutch back in. I have to override my instinct to not just drop the clutch back in when I'm not manually blipping the throttle. And guess what? When I just drop the clutch back in, it's all nice and smooth. Yeah, it's going to take some getting used to! :rolleyes:

FERRARI 01-24-2009 05:51 PM

Gee Thanks SEMTEX.....I had no idea that is how you speed Brake.........I can't believe that I spelled it that way.......Probably because I ALMOST NEVER use the Damn things.....lol

speedworks 01-24-2009 07:00 PM

Ferrari, if you aren't using them, then you aren't going fast enough;)

Joker57676 01-24-2009 07:18 PM

Wait, am I understanding you correctly....you accelerate into a turn??? What kind of pussy footing around are you doing as you approach?

FERRARI 01-24-2009 07:32 PM

Sure I do........good God ! do you know how dangerous it is to brake in turns ????? lol of course, you have to have a sports car suspension ...a very stiff and good suspension to do it going fast........hasnt anyone here ever been to driving school ?

speedworks 01-24-2009 07:37 PM

Actually I have been road racing (SCCA) for 9 years now. Trail braking? You are almost always slightly on the brakes as you enter a turn, it usually helps the car rotate initially through the turn. If not, you probably didn't carry enough speed into the turn, so you are probably going too slow anyway. The only other time, is if you are in a momentum class, and sometimes it is better to brake early so you can attempt to put the foot on the gas earlier. Also depends on the situation (trying to outbrake a competitor).

Joker57676 01-24-2009 09:11 PM

Quote:

Originally Posted by FERRARI (Post 23716)
Sure I do........good God ! do you know how dangerous it is to brake in turns ????? lol of course, you have to have a sports car suspension ...a very stiff and good suspension to do it going fast........hasnt anyone here ever been to driving school ?

Driving school or RACING school....there is quite a difference.

The idea with braking into the turn is you put the maximum weight on the front tires thereby giving them the most grip (much more than if the car is accelerating which places more weight on the back tires). The outside front tire, that would be the front left if you are turning right, will have the most grip of all four tires if you are braking and turning at the same time. This allows you to turn a little faster than you normally would.

Amature drivers, or drivers new to the track, are typically instructed to get their braking done before turning. As you noted, this is a safety issue. However, braking as you are turning is the far superior techinique if you are shooting for the lowest lap time (under normal conditions, ie not passing anyone, or driving in a Miata).

Mark

Crash 01-24-2009 10:34 PM

I brake before the turn, then accelerate through the turn. To each their own.

FERRARI 01-24-2009 11:13 PM

It makes a big difference if you are driving a mid or rear engine car.........oversteer has a lot to do with it.....also just how stiff your suspension is.......I just know that I do much better and have much more control over my car if I get my breaking done before I get to the turn........


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