Gas Pedal Delay

DIGItonium · 10-05-2012, 03:25 PM

Torque Management... that's what I think I'm feeling. It was discussed before, but it's very annoying. Must get rid of this TM so I can induce whiplash. So far it's probably the throttle table mods wstar defined.

OMGiGOTaZ · 10-05-2012, 04:46 PM

Has anyone tried the Apexi throttle controller?

mikeyandnetti · 12-05-2012, 11:55 AM

Quote:

Originally Posted by oro

Same thing on my 08 G37 Coupe 6MT, put your foot down. Car starts, pauses, then accelerates.

This is getting stranger and stranger. My 08 G Coupe has no delay, up or down, aside from mass of moving parts which I can live with. The crunchy new Z I tested was lagging uprev in third (say) at 3500 and badly lagging downrev all across the spectrum. A tragic flaw. It's up to Nissan to straighten this out.

IcedZ · 12-06-2012, 07:49 AM

Lagging downrev???
TECHNICAL: Nissan 370Z SynchroRev Match Transmission - Accel Times

Quote:

Originally Posted by mikeyandnetti

This is getting stranger and stranger. My 08 G Coupe has no delay, up or down, aside from mass of moving parts which I can live with. The crunchy new Z I tested was lagging uprev in third (say) at 3500 and badly lagging downrev all across the spectrum. A tragic flaw. It's up to Nissan to straighten this out.

wstar · 12-06-2012, 10:08 AM

As stated earlier, the easy fix is: don't go below 3K, or really more like 3500. If you're racing just keep the car in the right gear and there's no need to be that low. If you're just making a pass on the highway or something, surely you can see it coming and downshift earlier. This whole issue is really about drag racers (and even then you can avoid this at the strip with proper launch and shifts, so it's really just about street drag racers from a roll or whatever).

Zed-Hed · 12-06-2012, 05:47 PM

I totally agree with Mikey this is Nissans problem to fix!! Start a poll an see just how many people are having this issue. This is a serious flaw.

cheshirecat · 12-07-2012, 09:32 AM

Quote:

Originally Posted by wstar

As stated earlier, the easy fix is: don't go below 3K, or really more like 3500. If you're racing just keep the car in the right gear and there's no need to be that low. If you're just making a pass on the highway or something, surely you can see it coming and downshift earlier. This whole issue is really about drag racers (and even then you can avoid this at the strip with proper launch and shifts, so it's really just about street drag racers from a roll or whatever).

This issue goes beyond drag racers. I almost got tboned because the engine decided to bog when turning across a few lanes of traffic.

Most of the time it isn't that bad, but it is a serious problem.

DIGItonium · 12-07-2012, 01:06 PM

Quote:

Originally Posted by cheshirecat

This issue goes beyond drag racers. I almost got tboned because the engine decided to bog when turning across a few lanes of traffic.

Most of the time it isn't that bad, but it is a serious problem.

Almost happened to me a year ago. I pulled out to make a left as this car was approaching. It's just a big blind spot with cars parked on the side. I floored it in the middle of a turn and the car just slowly hovered at low revs in 1st.

kenchan · 12-07-2012, 01:18 PM

ive not encountered this..?

wstar · 12-07-2012, 09:36 PM

"when turning" - sure that wasn't VDC? But either way... If you think you're gonna need power, don't be down at 1,200 RPM to start.

DIGItonium · 12-07-2012, 10:16 PM

Quote:

Originally Posted by wstar

"when turning" - sure that wasn't VDC? But either way... If you think you're gonna need power, don't be down at 1,200 RPM to start.

Haha... nah, just getting the car to scoot as usual in 1st. It just doesn't budge down there. But you're right, if I get the revs up a bit higher in 1st the car gets moving. It's pretty much linear from there. I did that one time (even while the A/C was running) and spun the tires throughout the turn with barely half throttle.

LennyZCSD · 12-08-2012, 12:00 AM

Quote:

Originally Posted by cfleming2226

I guess as long as its not a problem with the car I will adjust ... i just really get a kick when it tosses me back in my seat, and with I can make "racers" look silly!

Thanks for the responce!

Try disabling the VCD control...

oro · 12-08-2012, 12:22 AM

As an update since I switched to the Southbend SS with 14lb flywheel, the issue is still there but far less noticeable. I have a feeling it has to do with torque management + our clunky trans design with the lightened flywheel the car jumps off the line cuts throttle very quickly then ramps up like hell if you push it quickly around 1- 1.5k rpm, it didn't fix the problem but it shortened the "return time" in a big way when the car ramps its power back up.

cheshirecat · 12-12-2012, 09:25 PM

Quote:

Originally Posted by LennyZCSD

Try disabling the VCD control...

Eh, I shouldn't have to disable VDC to make a somewhat rushed left turn.

Just to elaborate, there was no traction loss and the clutch was fully disengaged. The car just kind of fell on its *** for a few seconds, then surged forward.

It was without a doubt an engine management issue. The management and engine (other than intake/exhaust) is stock. I agree that some sort of torque management is to blame.

It's a lot like what other people have described here.

Definitely an eye-opener.

ZForce · 12-12-2012, 10:08 PM

Drive by wire

10-05-2012, 03:25 PM	#886 (permalink)
DIGItonium A True Z Fanatic Join Date: Jan 2009 Location: Kansas Posts: 3,800 Drives: 09 Z34-TT 6MT Rep Power: 42	Torque Management... that's what I think I'm feeling. It was discussed before, but it's very annoying. Must get rid of this TM so I can induce whiplash. So far it's probably the throttle table mods wstar defined. __________________

10-05-2012, 04:46 PM	#887 (permalink)
OMGiGOTaZ Enthusiast Member Join Date: Jul 2012 Location: Florida Posts: 316 Drives: 12 370Z Auto Sport Rep Power: 12	Has anyone tried the Apexi throttle controller? __________________ all you gotta do is...

12-06-2012, 10:08 AM	#890 (permalink)
wstar A True Z Fanatic Join Date: Mar 2009 Location: Houston, TX Posts: 4,024 Drives: too slow Rep Power: 3594	As stated earlier, the easy fix is: don't go below 3K, or really more like 3500. If you're racing just keep the car in the right gear and there's no need to be that low. If you're just making a pass on the highway or something, surely you can see it coming and downshift earlier. This whole issue is really about drag racers (and even then you can avoid this at the strip with proper launch and shifts, so it's really just about street drag racers from a roll or whatever). B&W_Evader likes this. __________________ 7AT Track Car! Journal thread / Car setup details

12-07-2012, 09:36 PM	#895 (permalink)
wstar A True Z Fanatic Join Date: Mar 2009 Location: Houston, TX Posts: 4,024 Drives: too slow Rep Power: 3594	"when turning" - sure that wasn't VDC? But either way... If you think you're gonna need power, don't be down at 1,200 RPM to start. __________________ 7AT Track Car! Journal thread / Car setup details

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12-06-2012, 05:47 PM	#891 (permalink)
Zed-Hed Base Member Join Date: Jan 2009 Location: Raleigh,NC Posts: 94 Drives: 2010 Z/2015 Z Rep Power: 20	I totally agree with Mikey this is Nissans problem to fix!! Start a poll an see just how many people are having this issue. This is a serious flaw.

12-07-2012, 01:18 PM	#894 (permalink)
kenchan A True Z Fanatic Join Date: Aug 2009 Location: N/A Posts: 76,801 Drives: N/A Rep Power: 141520	ive not encountered this..?

12-08-2012, 12:22 AM	#898 (permalink)
oro Base Member Join Date: Dec 2009 Location: Arizona Posts: 192 Drives: G37S Rep Power: 15	As an update since I switched to the Southbend SS with 14lb flywheel, the issue is still there but far less noticeable. I have a feeling it has to do with torque management + our clunky trans design with the lightened flywheel the car jumps off the line cuts throttle very quickly then ramps up like hell if you push it quickly around 1- 1.5k rpm, it didn't fix the problem but it shortened the "return time" in a big way when the car ramps its power back up.

12-12-2012, 10:08 PM	#900 (permalink)
ZForce A True Z Fanatic Join Date: Jul 2009 Location: Roseville, CA Posts: 2,359 Drives: 09 370Z Tour + Sport Rep Power: 20	Drive by wire