Nissan 370Z Touring: Brakes and Blips and Revs, Oh My!

ChrisSlicks · 05-26-2009, 04:16 PM

One more annoying thing I experimented with a little is the reluctance of the rpms to drop when up shifting, for this test I had SRM disabled.

I found that the rpms will only drop quickly if you are 100% off the throttle before you touch the clutch, during normal driving you wouldn't do that as it makes for more jerky behavior. This could be attributed partially to the electronic throttle not sensing the load change quickly enough, compounded by the heavy flywheel.

Modshack · 05-26-2009, 04:38 PM

Quote:

Originally Posted by ChrisSlicks

One more annoying thing I experimented with a little is the reluctance of the rpms to drop when up shifting, for this test I had SRM disabled.

I found that the rpms will only drop quickly if you are 100% off the throttle before you touch the clutch, during normal driving you wouldn't do that as it makes for more jerky behavior. This could be attributed partially to the electronic throttle not sensing the load change quickly enough, compounded by the heavy flywheel.

There may be an additional factor at work here...If you read the VVEL expose over on the other forum (Posted today) it states that the throttle plate kind of plays second fiddle to the Cam actuation in determining some engine speed settings...

http://www.the370z.com/nissan-370z-g...potantial.html

ChrisSlicks · 05-26-2009, 04:42 PM

Quote:

Originally Posted by Modshack

There may be an additional factor at work here...If you read the VVEL expose over on the other forum (Posted today) it states that the throttle plate kind of plays second fiddle to the Cam actuation in determining some engine speed settings...

Yes I read that one. It doesn't really matter what the throttle is controlling as long as whatever it is controlling reacts quickly. Given that the VVEL and throttle plate are both computer controlled this is potentially something that can be addressed by a software update (if Nissan determines it is a problem).

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
370Z Brakes?	RCZ	Brakes & Suspension	48	05-23-2013 08:00 PM
Endless Z34 Brakes for Nissan 370Z announced!!!	AK370Z	Brakes & Suspension	12	12-12-2011 06:33 PM
Left Lane News Quick Spin: 2009 Nissan 370Z Touring Automatic	SoCal 370Z	Nissan 370Z Photos / Spyshots / Video / Media Gallery	5	05-16-2009 08:11 AM
R35 GT-R Brakes on the 370Z?	Slidefox	Brakes & Suspension	8	01-10-2009 09:53 PM
Nissan 370z Touring sport package pricing	shizzawha	Nissan 370Z Pricing / Ordering Discussions	21	12-08-2008 10:59 AM

05-26-2009, 04:16 PM	#1 (permalink)
ChrisSlicks A True Z Fanatic Join Date: Mar 2009 Location: North East Posts: 6,203 Drives: 09 370Z Sport M6 Rep Power: 654	One more annoying thing I experimented with a little is the reluctance of the rpms to drop when up shifting, for this test I had SRM disabled. I found that the rpms will only drop quickly if you are 100% off the throttle before you touch the clutch, during normal driving you wouldn't do that as it makes for more jerky behavior. This could be attributed partially to the electronic throttle not sensing the load change quickly enough, compounded by the heavy flywheel.