Pedal stomp downshift (6MT only)
 

I noticed recently that if I give the gas pedal a firm stomp (like pumping the clutch) all the way to the floor and release it while shifting it pretty much always sets me up for a smooth shift down one gear. If I hold the stomp barely a second longer it gives me a good segue down two gears. I haven't done any serious experimentation with it like turning the VDC on and off or anything, it's just something I've picked up under normal driving conditions. I also think it works best if you constantly drive aggressively (around 3k RPM) so the car actually revs when you stomp your foot. This lets me downshift without having to look at my RPM gauge to see what I'd have to do to match.

Like I said, haven't really experimented with it but it's happened often enough when I try it for me to think it's worth mentioning.

are you saying that you finally figured out wat blip throttle is (considering your sig pict you seem to race cars???) :confused:

He was in the Bull Run all you need is money to get in the race... and yes thats called rev matching! thats what the Synchro rev match does for you so you dont have too. not only is it faster than you in doing it but it also allows you to focus on more important things like your braking points! lol I dont brake until I see Jesus!

Yeah sounds like rev matching to me...

How often do you see Jesus?

First vote to close this thread...

i second that motion

Geez. Tough crowd.

Either my past experience with manual cars is different than I remember OR none of you bothered to really read what I was saying. Of course it's rev matching and throttle blipping - DUH. That's not what I'm asking about.

What I'm saying is that in my past 350 and Tiburon GT (both manuals) I always had to modulate the throttle differently depending on my RPMs to match revs properly for a good downshift. With my 370, I've found that the pedal stomp, no matter where I am on the tach, gives me a great match. I didn't opt for the SynchroMatch but I'm wondering if the ECU still plays a hand, because I've never had the pedal pushed to the floor like that without the revs jumping way too high for a smooth downshift

ok now i see what you are saying. don't close the thread

Hmm...interesting. So you're saying that it's impossible to over-rev when blipping for a downshift?

IMO....feels like that because its a heavy flywheel...the stomp gets the revs up and then the weight of the flywheel lessens the shock of being in the wrong RPM. What you are doing is just blipping the throttle...nothing more to it. Its just a heavy flywheel..

I agree, it is quite possible to still over-rev the downshift. I know I did it once by accident. But still, it's much easier to take your time since the revs come back down due to the heavier flywheel if you over rev it. Just take your time and it'll become easier and easier. I was actually quite shocked how hard I had to blip in order for it to match properly.

Ah! Flywheel. That's certainly a more plausible explanation. I really like the effect, it's made driving manual a lot more fun compared to my previous cars, where rev matching on the downshift required a lot more attention to the throttle

:drama:

lol you should keep doing that with out knowing nearly exactly how much to match the engine to tranny rpms. I always wondered how much the syncros, gears, and even a new tranny in the 370z would cost. :tup: guinea piggy

I can tell you how much the syncos and gears cost in an rsx s... twice :shakes head: lol

My recommendation for those of you that happen upon this thread

1. turn on SRM and don't worry about any of this... SRM will rev-match perfectly which does a lot of things... faster / more efficient shifts, can downshift safely in corners, less likely to damage or wear parts

2. or leave it off and learn to properly rev match... that may indeed mean that you have to floor it for a certain amount of time to get the revs up... but... be sure to return the throttle to the appropriate position as you re-engage the drivetrain... do not simply 'release the throttle' unless you really know what you're doing - that can be dangerous if you are downshifting in a turn

For those of you that don't like the slow responsiveness of the motor due to heavy flywheel, suggest you look into the JWT or other aftermarket flywheels which weigh ~half as much

It's much better for the tranny to try and rev-match and be close to the rpm rather than not doing it at all and downshifting IMO. If it feels totally smooth as if SRM was on than as far as I'm concerned it was applied correctly. Am I wrong by assuming that?

Really? I think the heavy flywheel makes it harder, at least when it comes to heel and toe, because you have to depress the throttle more to get the revs up, which can be challenging when half your foot is on the brake pedal. I much prefer being able to get the revs up with a less pressure. That's just my personal preference tho.

You have the perfect forum handle then....:shakes head:

Anyone tell me if I'm safe to assume the bolded statement?

If you didnt feel your drivetrain cry out for help then yes you shifted acceptably...

I don't heel toe when I drive on the street, and I don't race this car so for me at least it's nice.