RPM Blip on Upshift?

NCSUPACK09 · 03-02-2010, 05:15 PM

I was thinking about it last night, and I think you are right Steve. It's not really a blip, but more of a gradual increase in RPMs. I also noticed that it was directly related to pushing in the clutch, so it sounds like it may just be the flywheel momentum.

m4a1mustang · 03-02-2010, 06:27 PM

Yeah, I'm sure that's it. There's also a very slight delay with the electronic throttle (some people notice it, some don't) that could be contributing to that feeling. All in all its normal, and can be solved with a lightweight flywheel.

Pharmacist · 03-03-2010, 06:22 AM

happens to me all the time. easiest way to see it is start from a stop, rev a little and slip the clutch for a couple of seconds, then lift off throttle and simultaneously push the clutch back in. you should notice a slight rpm increase for a moment. like others said, it's probably due to a mix of a heavy flywheel and also a slight lag time in the response of the electronic throttle

TheSnakeJake · 03-03-2010, 05:59 PM

i was out driving my car today (just got it last night) and it definitely blipped the throttle between my 3-4 shifts. it happened a few times, but only during the 3-4 shift. this wasn't the throttle "lag" that you guys keep mentioning (i noticed that as well), this was an obvious blip of the throttle...

anybody else experience this?

kfscoll · 04-04-2010, 02:00 AM

Quote:

Originally Posted by TheSnakeJake

i was out driving my car today (just got it last night) and it definitely blipped the throttle between my 3-4 shifts. it happened a few times, but only during the 3-4 shift. this wasn't the throttle "lag" that you guys keep mentioning (i noticed that as well), this was an obvious blip of the throttle...

anybody else experience this?

Yep, noticed the same thing a few times today during upshifts while driving relatively aggressively.

JvKintheUSA · 04-04-2010, 08:59 AM

Quote:

Originally Posted by TheSnakeJake

i was out driving my car today (just got it last night) and it definitely blipped the throttle between my 3-4 shifts. it happened a few times, but only during the 3-4 shift. this wasn't the throttle "lag" that you guys keep mentioning (i noticed that as well), this was an obvious blip of the throttle...

anybody else experience this?

I have the AT and a small throttle blip between 3-4 (or was it 2-3?) as well, but only when the engine is cold.

PapoZalsa · 04-04-2010, 09:25 AM

That blip happened to me but with the SRM on.

03-02-2010, 05:15 PM	#1 (permalink)
NCSUPACK09 Enthusiast Member Join Date: Jan 2010 Location: Somewhere Posts: 407 Drives: '10 370Z MB 6MT SP Rep Power: 16	I was thinking about it last night, and I think you are right Steve. It's not really a blip, but more of a gradual increase in RPMs. I also noticed that it was directly related to pushing in the clutch, so it sounds like it may just be the flywheel momentum. __________________ 2010 Base 370z Magnetic Black 6MT SP Mods: Bone Stock

03-02-2010, 06:27 PM	#2 (permalink)
m4a1mustang A True Z Fanatic Join Date: Feb 2009 Location: Northern VA Posts: 55,385 Drives: on two wheels Rep Power: 6963	Yeah, I'm sure that's it. There's also a very slight delay with the electronic throttle (some people notice it, some don't) that could be contributing to that feeling. All in all its normal, and can be solved with a lightweight flywheel. __________________ - Steve Zs & Coffee - Saturdays at 10AM in Fairfax, VA and Columbia, MD (Click the banner!) LIKE us on Facebook!

04-04-2010, 09:25 AM	#7 (permalink)
PapoZalsa A True Z Fanatic Join Date: Nov 2009 Location: Not in Sunny Florida Posts: 6,358 Drives: 16 Nismo w/Tech Pack Rep Power: 4500	That blip happened to me but with the SRM on. __________________ 2009 370Z MB Base w/Sport Package 6MT Modshack's Custom Air Intakes /3M Clear Bra/ Illuminated Kick Plates / F. I CBE w/12" resonators / EVO-R Front Lip / Rear Hatch Wing / Tein S-Tech Springs /Ilegal Tint in the Rep. of VA/4x20mm Z1 Spacers/ Vinyl Roof/Liquid Carbon Designs

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03-03-2010, 06:22 AM	#3 (permalink)
Pharmacist A True Z Fanatic Join Date: May 2009 Location: Toronto, Ontario Posts: 1,249 Drives: 09 370z Sport 6MT Rep Power: 19	happens to me all the time. easiest way to see it is start from a stop, rev a little and slip the clutch for a couple of seconds, then lift off throttle and simultaneously push the clutch back in. you should notice a slight rpm increase for a moment. like others said, it's probably due to a mix of a heavy flywheel and also a slight lag time in the response of the electronic throttle

03-03-2010, 05:59 PM	#4 (permalink)
TheSnakeJake Base Member Join Date: Feb 2010 Location: Cincinnati Posts: 84 Drives: none Rep Power: 16	i was out driving my car today (just got it last night) and it definitely blipped the throttle between my 3-4 shifts. it happened a few times, but only during the 3-4 shift. this wasn't the throttle "lag" that you guys keep mentioning (i noticed that as well), this was an obvious blip of the throttle... anybody else experience this?