Throttle response ?

pearlwhite1 · 11-26-2013, 09:50 AM

When i try to blip the throttle. the engine RPM doesn't respond very quick. it takes a couple of seconds for the engine to return to idle. Are you guys seeing the same thing? i have heard other Nismo owners complain about it and it seems to only be the Nismos. is there any fix for this?

DEpointfive0 · 11-26-2013, 09:53 AM

Get a tune

Chuck33079 · 11-26-2013, 09:55 AM

Quote:

Originally Posted by pearlwhite1

it seems to only be the Nismos.

Not true at all. The throttle is laggy on all Zs. A tune helps assuming they spend some time on the throttle tables. There's a long thread about it. You could bring the latest map from that thread to your tuner.

pearlwhite1 · 11-26-2013, 10:30 AM

Yeah i get the laggy part too, but what i'm wondering about is the amout of time it takes to return to idle when... say your at a stop light and just rev the motor a bit. it's not quick and crisp it's more of a long and drug out for several seconds thing.

DEpointfive0 · 11-26-2013, 10:31 AM

Lightweight flywheel

Chuck33079 · 11-26-2013, 10:35 AM

Quote:

Originally Posted by DEpointfive0

Lightweight flywheel

This will help, at the expense of noise. Possibly lots of noise. There's a 50-50 chance you would really regret a lightweight flywheel.

TreeSemdyZee · 11-26-2013, 10:56 AM

Welcome to "drive-by-wire".

Chuck33079 · 11-26-2013, 10:58 AM

Quote:

Originally Posted by TreeSemdyZee

Welcome to "drive-by-wire".

Yep. It slows the closing of the throttle plate when you lift to help with emissions. God forbid there be some unburnt fuel in the atmosphere.

DEpointfive0 · 11-26-2013, 11:10 AM

Quote:

Originally Posted by Chuck33079

Yep. It slows the closing of the throttle plate when you lift to help with emissions. God forbid there be some unburnt fuel in the atmosphere.

Lol, especially when 1/4 of us are decatted or have HFCs

pearlwhite1 · 11-26-2013, 11:10 AM

ok so it sounds like there is no cure for the lack of a cable and return spring.
Thanks for the input

Apollo8642 · 11-26-2013, 11:41 AM

I believe the slow return to idle is to make the car easier to drive, and shift, as well it's easier on the drivetrian. I'm just annoyed with the lag in the 2000rmp to 3000rmps, I really want that to go away.

I'm running the South Bend 19lb steel flywheel, with their 3rd stage clutch and pressure plate. There was a little bit of improvement on the return to idle lag, though I do get some of the trans gear rattle while under load low rpms, and a slight rattle just off idle when reving the engine. They say it's completely normal with single mass flywheel, but I don't think it's loud or annoying, and it goes away durning normal driving rpms. I've also heard something about it's important which trans oil you use, and that there are a couple that help with that noise, also I'm sure aluminum flywheels would make a fair bit more noise though.

Apollo8642 · 11-26-2013, 12:08 PM

Quote:

Originally Posted by pearlwhite1

ok so it sounds like there is no cure for the lack of a cable and return spring.
Thanks for the input

There has been a few threads about this, but I think the cure is something along these lines.

Nissan 370Z SprintBooster
and
https://thesource-usa.com/store/inde...-z34-370z.html

Chuck33079 · 11-26-2013, 12:10 PM

Quote:

Originally Posted by Apollo8642

There has been a few threads about this, but I think the cure is something along these lines.

Nissan 370Z SprintBooster
and
https://thesource-usa.com/store/inde...-z34-370z.html

Those are band-aids.

Smooth Throttle for UpRev

The solution is in there.

11-26-2013, 09:50 AM	#1 (permalink)
pearlwhite1 Base Member Join Date: Aug 2012 Location: Nor California Posts: 26 Drives: 2012 Nismo Rep Power: 13	Throttle response ? When i try to blip the throttle. the engine RPM doesn't respond very quick. it takes a couple of seconds for the engine to return to idle. Are you guys seeing the same thing? i have heard other Nismo owners complain about it and it seems to only be the Nismos. is there any fix for this?

11-26-2013, 09:53 AM	#2 (permalink)
DEpointfive0 A True Z Fanatic Join Date: Jan 2012 Location: SoCal Posts: 14,824 Drives: a lot Rep Power: 17152	Get a tune Chuck33079 likes this. __________________ Do YOU want to know what/where I got my username from? ( Click to show/hide ) NSFW due to language:

11-26-2013, 10:31 AM	#5 (permalink)
DEpointfive0 A True Z Fanatic Join Date: Jan 2012 Location: SoCal Posts: 14,824 Drives: a lot Rep Power: 17152	Lightweight flywheel Txernyuk likes this. __________________ Do YOU want to know what/where I got my username from? ( Click to show/hide ) NSFW due to language:

11-26-2013, 10:56 AM	#7 (permalink)
TreeSemdyZee Premium Member Join Date: Dec 2009 Location: Kentuck-IANA Age: 60 Posts: 4,886 Drives: '09 370 & ‘14 Juke Rep Power: 27409	Welcome to "drive-by-wire". nismo09, Chuck33079 and Punisher00 like this.

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11-26-2013, 10:30 AM	#4 (permalink)
pearlwhite1 Base Member Join Date: Aug 2012 Location: Nor California Posts: 26 Drives: 2012 Nismo Rep Power: 13	Yeah i get the laggy part too, but what i'm wondering about is the amout of time it takes to return to idle when... say your at a stop light and just rev the motor a bit. it's not quick and crisp it's more of a long and drug out for several seconds thing.

11-26-2013, 11:10 AM	#10 (permalink)
pearlwhite1 Base Member Join Date: Aug 2012 Location: Nor California Posts: 26 Drives: 2012 Nismo Rep Power: 13	ok so it sounds like there is no cure for the lack of a cable and return spring. Thanks for the input

11-26-2013, 11:41 AM	#11 (permalink)
Apollo8642 Base Member Join Date: Feb 2012 Location: Oregon Posts: 187 Drives: 09 370Z Nismo #280 Rep Power: 14	I believe the slow return to idle is to make the car easier to drive, and shift, as well it's easier on the drivetrian. I'm just annoyed with the lag in the 2000rmp to 3000rmps, I really want that to go away. I'm running the South Bend 19lb steel flywheel, with their 3rd stage clutch and pressure plate. There was a little bit of improvement on the return to idle lag, though I do get some of the trans gear rattle while under load low rpms, and a slight rattle just off idle when reving the engine. They say it's completely normal with single mass flywheel, but I don't think it's loud or annoying, and it goes away durning normal driving rpms. I've also heard something about it's important which trans oil you use, and that there are a couple that help with that noise, also I'm sure aluminum flywheels would make a fair bit more noise though.