RPM jump when upshifting
 

Hello guys,

I picked up a 2009 370z touring with Sport Package 6MT 2 weeks ago and am loving it. I came from a G37 sedan with the buggy 7AT so it has been a huge change. I am still pretty new to driving a manual so please bear with me.

Like the title says, when I try to upshift from 3-4, 4-5 or 5-6, when I engage the clutch and about the shift, I notice the engine RPM jumps up about 500-1000 rpm. So it goes like clutch in - shift 3 to neutral position - RPM jump - neutral position to 4 - clutch out - gas. Is this normal? Or am I doing anything wrong?

Thanks a bunch. Great forum by the way.

Sometimes the ECU will rev the engine a bit for emissions control but a 1000 rpm jump when up shifting sounds weird. You're off the gas pedal when shifting right?

Maybe not 1000rpm, more like 500rpm. But yeah I am off the gas pedal when shifting.

It doesn't do it all the time thought. It happens less when I shift faster. So should I shift faster? Or should I go to neutral, then wait a tiny bit, then shift to 4?

It's synchro rev kicking in. It thinks you're about to downshift. Shift faster.

That happens to me when the car hasn't warmed up.

Yeah, that happens to me on 4-5 shift only and it is becuase it thinks I am going down to 3 so the syncro rev match is kicking in. It does not happen a lot but does happen. I think it might have to do with how close you are to the gate of the downshift gear.

im pretty sure thats the normal thing for syncro rev match to do guys cause it work on upshifts too not just downshifts. mine does this same thing also when i go to upshift, completely normal when you have syncro rev match on.

I have had this happen will shifting from 4th to 5th and it is just the rev match. I guess the ECU thinks I'm trying to go to 3rd....

this happens to me sometimes. in my experience its because im very, ever so slightly touching the gas as im clutching in.

try this, completely let off the gas a second before you even engage the clutch and then shift up. i doubt you'll get the RPM uprev. the gas pedal is pretty touchy on our cars

Ok thanks a lot guys. Such a great forum :)

I'll try to let off the gas a sec before engaging the clutch and see if the rpm jumps.

Happens on 5-6 sometimes

I am very pleased with the Rev match... EXCEPT... i put the car into neutral a lot while driving (dont ask)... and every time i go to neutral i get a throttle blip.

I don't apply presure to the stick so it doens't know what gear i want, simply move to N and it blips. Stupid thing. :shakes head:

I have to ask -- why do you go into neutral so often?

Coasting in neutral isn't the safest thing you can do.

push the stick towards 5/6 to avoid the blip