SynchroRev Match Feature on 370z
 

Has anyone driven the 6 speed Manual ? I have been driving Manual Transmissions for more years that I want to admit.......and If I have this feature figured out correctly, I will not be able to "Back Off" or "Gear Down" the way that I am accustomed to doing.......I do know that it has a button so you can turn off this feature......and I can and do rev match myself.

Well I don't own one yet but I test drove it this morning and yes the rev match feature did throw me off as far as how I normally drive like I engine brake and blip the throttle on my 350z currently. You can turn this feature on/off but I wasn't behind the wheel long enough to test it out thoroughly. Its interesting though and I can see myself driving with it on all the time, I always get aggressive drivers cutting me off in traffic causing me to abruptly downshift and I think this would help in that respect, plus it sounds really cool trust me!

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But could you Back off .....as in slow down as fast with this feature on....? That is what I mean.....it I want to gear down and slow down fast......and I revmatch....then this seems like to me it would take longer..........make sense ?
I might not be thinking this tru correctly....lol

The computer seems to anticipate your next move and match the revs perfectly. I tried back off as you put it but the car seemed to remain in the power band ready for me to mash the gas again. I get what your saying and I think you can drive it how you are describing by just turning the button off than it acts like a normal MT. But yes I think with the feature turned on it would be a little tricky to gear down and slowdown fast cuz that mode is meant for sprinted driving or curvy roads so it can power you out of a turn quicker and similar situations.

i own a 370z 6MT w/ synchro rev and i noticed the revs dont drop as quickly when i put it in gear... say im going from 80 at ~3k rpm and drop it to 3rd at ~6k rpm... the speed wont slow as dramatically as you would expect on regular MTs. IMO i think its because on standards no matter how good you are blipping your own throttle, it jerks the car (whether you feel it or not) causing it to slow down(faster). Where with this new feature.. you might feel a little skeptical w/o trying it.. it does it perfectly. doesnt jerk the car AT ALL.

You can just turn off SR if you want to engine brake with tranny while down shifting.

At first I didn't like the SR because I have been use to heel/toe shifting for many years, it was a learned skill that I wasn't ready to give up. :icon17:

After driving the car for over 1000 miles now, I have succumbed to it, I can say that once you get use to it, it just makes sense. Just mash the brakes and downshift and it hits the engine revs perfectly every time, there are very few drivers that can do that every single time. SR is something I feel that a lot of other MT cars will have on them in the future. It works good!, and if you don't want it, turn it off. :tup:

Braden

That is due to the 30 lb. flywheel. The synchrorev feature is essentially a perfect heel-n-toe downshift.

Just to make sure no one gets the wrong impression, I want to point out that you do not have to hit the brakes for the automatic blipping to take place. The engine blips as soon as it detects that you've shifted to a lower gear, regardless of whether or not you're on the brakes.

yea that.
and the engine revs automatically even though you dont go into a gear.
for example.. like when you move the lever left towards gear 1-2 when you were cruising at 45 at 4th.. it will automatically start revving up.

Guess I am missing something....
 

I never hit the break first before downshifting .........but I have been doing this for over 35 years and in sports cars....I also never hit the break before entering a turn.....but instead step on the gas.........maybe I just drive too aggressively ......lol.........but then again that is why I loooove sports cars.......

Just an FYI, the only time you should ever engine brake is when you're foot brake is malfunctioning. (Don't flame me for this!)

Brake pads are cheaper to replace than a transmission! Engine braking is only OK for a transmission if the gears in the trans are straight cut. But that's not the case in this transmission.

Actually, this is kinda depends. I actually experimented with this the other day. If you move the shifter from 3rd over to the 1-2 side, you are right that it will blip even before you actually slide into 2nd. But try moving it out of 4th -- it won't blip until you actually move into 3rd. And that makes sense, because there's no way for the computer to know if you're moving from 4th into 3rd, or 4th into 5th (in which case it'd not make sense to blip). Whereas if you're moving the shifter to the left 1-2 slot, then it's obvious that you're downshifting even before you actually slide into 2nd. It's a very slick system!

I say again......I have never had to replace a transmission or a clutch or for that matter, break pads, and have driven hundreds of thousands of miles on curvy mountains going as fast as I can in turns. That is why I drive a sports car........and I might add I have never had any engine or transmission problems.......anyone that breaks before a turn instead of accelerating ... or at least just letting off the gas instead of braking.........brakes are dangerous in curves......I must drive differently .......lol...........

^ Dude, it's "brake", not "break." ;) You keep making me think of this guy -> :ughdance:

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:

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

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

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

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 ?

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).

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

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

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........