Gas Pedal Delay

L8N8 · 05-20-2011, 09:34 AM

Quote:

Originally Posted by IcedZ

No, the car FALLS ON IT's FACE. It's terrible. Civic, Prius, you name it will take you for at least 2 car lengths before you can catch up.

Completely agree. I have a stock 2010 Z in which I've only used Mobil 1 5w30 synthetic oil. I've had the issue since last summer and have experienced the delay in almost all 6 gears at one point or another. Sometimes the delay has been brief and barely noticeable; other times it's very prominent and gets me stuck in the middle of an intersection.

DIGItonium · 05-20-2011, 09:37 AM

Davey, these situations do not require full throttle. Let's say you're making a left turn, going across the street, or get the car moving through an intersection from the light. You get in 1st to get the car going as usual and give it the usual moderate throttle. The the car revs to 2k RPM and hangs for about 1-2 seconds before ramping up. Normally the car would simply rev up in a linear fashion. At this point you realize you have to give it slightly more gas than usual or it will bog 1st gear. It simply feels heavy, and it goes from slightly lacking power to having no power. It feels like starting out in 2nd gear. Better yet, it is a similar feeling to VDC/TCS kicking in. No difference with it disabled.

Your instinct tells you to give it more gas, right? So you'll go from 30% to 100% throttle the split second the car is hanging at 2k RPM, and it makes no difference. While holding down the pedal, the car will hang and start to rev up. It does not feel like 100% throttle. The exhaust sounds loud, but it does not scream and the car does not appear to move as fast as it sounds. Passenger would describe it as me lifting my foot and putting it back down. I'll even demonstrate with the foot down to the floor for a few seconds in 2nd to show them I'm really trying to floor it to their disbelief.

Normally the car is eager to rev, and it screams in 1st. Plus, it's easy to peel out from a roll in 1st past 3k RPM. When this power loss kicks in, there's no chance of breaking loose the tires from a roll.

There are cases where I'd like to get the car moving fast as traffic approaches, but it is scary to see it lag for a couple of seconds with the pedal to the floor. Even when it starts moving, it doesn't go crazy with the pedal to the floor. It feels like 50-60% throttle.

I've yet to hear anything from the tech at Baker Nissan.

IcedZ · 05-20-2011, 10:53 AM

Quote:

Originally Posted by DIGItonium

Davey, these situations do not require full throttle. Let's say you're making a left turn, going across the street, or get the car moving through an intersection from the light. You get in 1st to get the car going as usual and give it the usual moderate throttle. The the car revs to 2k RPM and hangs for about 1-2 seconds before ramping up. Normally the car would simply rev up in a linear fashion. At this point you realize you have to give it slightly more gas than usual or it will bog 1st gear. It simply feels heavy, and it goes from slightly lacking power to having no power. It feels like starting out in 2nd gear. Better yet, it is a similar feeling to VDC/TCS kicking in. No difference with it disabled.

Your instinct tells you to give it more gas, right? So you'll go from 30% to 100% throttle the split second the car is hanging at 2k RPM, and it makes no difference. While holding down the pedal, the car will hang and start to rev up. It does not feel like 100% throttle. The exhaust sounds loud, but it does not scream and the car does not appear to move as fast as it sounds. Passenger would describe it as me lifting my foot and putting it back down. I'll even demonstrate with the foot down to the floor for a few seconds in 2nd to show them I'm really trying to floor it to their disbelief.

Normally the car is eager to rev, and it screams in 1st. Plus, it's easy to peel out from a roll in 1st past 3k RPM. When this power loss kicks in, there's no chance of breaking loose the tires from a roll.

There are cases where I'd like to get the car moving fast as traffic approaches, but it is scary to see it lag for a couple of seconds with the pedal to the floor. Even when it starts moving, it doesn't go crazy with the pedal to the floor. It feels like 50-60% throttle.

I've yet to hear anything from the tech at Baker Nissan.

GREAT description. Thank you, sir.

Pelican170 · 05-20-2011, 11:53 AM

How is the installation on the Sprintbooster? haha im not very mechanical... I looked on the website and they make it look super easy. Is it really that easy?

Pelican170 · 05-20-2011, 12:20 PM

Just talked to someone at Sprint Booster and gave me these instructions. Im assuming they are the same for the 370z. Seems simple enough...

http://www.sprintboosterusa.com/download/sbni0012s.pdf

Davey · 05-21-2011, 10:00 AM

Quote:

Originally Posted by IcedZ

No, the car FALLS ON IT's FACE. It's terrible. Civic, Prius, you name it will take you for at least 2 car lengths before you can catch up.

Quote:

Originally Posted by DIGItonium

Davey, these situations do not require full throttle. Let's say you're making a left turn, going across the street, or get the car moving through an intersection from the light. You get in 1st to get the car going as usual and give it the usual moderate throttle. The the car revs to 2k RPM and hangs for about 1-2 seconds before ramping up. Normally the car would simply rev up in a linear fashion. At this point you realize you have to give it slightly more gas than usual or it will bog 1st gear. It simply feels heavy, and it goes from slightly lacking power to having no power. It feels like starting out in 2nd gear. Better yet, it is a similar feeling to VDC/TCS kicking in. No difference with it disabled.

Your instinct tells you to give it more gas, right? So you'll go from 30% to 100% throttle the split second the car is hanging at 2k RPM, and it makes no difference. While holding down the pedal, the car will hang and start to rev up. It does not feel like 100% throttle. The exhaust sounds loud, but it does not scream and the car does not appear to move as fast as it sounds. Passenger would describe it as me lifting my foot and putting it back down. I'll even demonstrate with the foot down to the floor for a few seconds in 2nd to show them I'm really trying to floor it to their disbelief.

Normally the car is eager to rev, and it screams in 1st. Plus, it's easy to peel out from a roll in 1st past 3k RPM. When this power loss kicks in, there's no chance of breaking loose the tires from a roll.

There are cases where I'd like to get the car moving fast as traffic approaches, but it is scary to see it lag for a couple of seconds with the pedal to the floor. Even when it starts moving, it doesn't go crazy with the pedal to the floor. It feels like 50-60% throttle.

I've yet to hear anything from the tech at Baker Nissan.

I drove mine around for about an hour and a half after driving it home from work yesterday, maybe 15 minutes of cooling in between. Oil temps were up near or slightly over 220 the whole time (77 degrees out) and I was on and off the throttle in every gear and I could not say I felt ANYTHING like what you describe.

Every car will get heat-soaked and lose a little power and feel kind of laggy in heavy traffic but a little cruising at speed should clear it up, and it shouldn't be as bad as what you describe! That is crazy!

The only thing I can think is, I tend to roll into the throttle rather than tromp it. I ran mine to redline 3 - 4 times in 1st with the tires warm and I am not feeling it break loose or the VDC come on, but it's definitely going to redline in a big hurry, feels about the same as my old '08 350Z, which is what I'd expect, it's not like an extra 25 hp and 65 lbs less weight makes much difference especially with a passenger in the car.

I also got into it from 2500 RPM in 4th and 5th several times, for short periods, and obviously it wasn't really "fast" even once it got up past 3500 RPM or so but it definitely was pulling harder than the "average" car.

Do you have this stuff happen when you aggressively roll onto the throttle or is it mostly when you stomp it to the floor?

6spd · 05-21-2011, 06:14 PM

yeah i was driving last night in a very secluded area practicing some fishtailing and th car was HOT, but no problems at all like you guys.

DIGItonium · 05-21-2011, 07:08 PM

No there is no need to step on it. It's just casual driving. All of my tests are done while the car is rolling, and it does not involve aggressive driving. If you watch the Youtube video posted, then you can see it's more than just lag. I'll do some more testing sometime once I get the headlights back on.

6spd · 05-21-2011, 08:43 PM

Quote:

Originally Posted by DIGItonium

No there is no need to step on it. It's just casual driving. All of my tests are done while the car is rolling, and it does not involve aggressive driving. If you watch the Youtube video posted, then you can see it's more than just lag. I'll do some more testing sometime once I get the headlights back on.

im gonna do some tests too. ive got time off from work coming up, so maybe ill bring our scanner home and make some observations.

L8N8 · 05-28-2011, 01:18 PM

Found a gun metallic NISMO and will be trading in for it this weekend. I'll be back on this thread if I encounter the same issue with that model. Good luck guys.

DIGItonium · 05-28-2011, 09:50 PM

Quote:

Originally Posted by L8N8

Found a gun metallic NISMO and will be trading in for it this weekend. I'll be back on this thread if I encounter the same issue with that model. Good luck guys.

Oh snaps! Congrats! I've put in too much work in my car to trade up, so I'm quite content hehe.

I've not dealt with anything major, but I notice I can barely keep up with an Accord sedan O_o... well not without letting the exhaust roar making it sound like I'm trying really hard.

KingZee · 05-28-2011, 11:15 PM

Quote:

Originally Posted by DIGItonium

Oh snaps! Congrats! I've put in too much work in my car to trade up, so I'm quite content hehe.

I've not dealt with anything major, but I notice I can barely keep up with an Accord sedan O_o... well not without letting the exhaust roar making it sound like I'm trying really hard.

Wtf kinda accord sedans are you trying to keep up with? Turboed ones? Lol

DIGItonium · 05-31-2011, 12:34 AM

Quote:

Originally Posted by KingZee

Wtf kinda accord sedans are you trying to keep up with? Turboed ones? Lol

LOL, maybe I was being too conservative with the throttle and not letting it rev past 3k RPM.

I went house searching over the weekend and drove the car quite a bit with ambient temps hitting 92F. The oil temps hovered around 210F max, and I even had the A/C running. To be honest, the car didn't feel very sluggish. It was the typical slight power drop with the A/C running, but it was able to pull hard in 2nd and 3rd with virtually no lag. It was a relatively good day to drive around and not bog gears so much.

All I've done so far was remove the fang vent covers a week ago when reinstalling the headlights.

Anyhow, the car is down again to get one headlight shipped out for repairs.

2ndChance · 05-31-2011, 01:29 AM

Just drove the car and experienced this lag for the first time.. I was about 20mph then suddenly floored it, and then a good 1.5 seconds passed before the car started to move.. It happened many times and specially when I'm going slow in a curve or something.

I think it has to do with the VDC... will try again tomorrow in manual mode vdc off.

m4a1mustang · 05-31-2011, 07:47 AM

Quote:

Originally Posted by 2ndChance

Just drove the car and experienced this lag for the first time.. I was about 20mph then suddenly floored it, and then a good 1.5 seconds passed before the car started to move.. It happened many times and specially when I'm going slow in a curve or something.

I think it has to do with the VDC... will try again tomorrow in manual mode vdc off.

We've already determined that VDC is not the culprit, at least in the lag that we are all experiencing. VDC intervention is usually very easy to detect -- not only do you see the light flashing, but you can feel the car cutting power, applying brake, etc.

05-20-2011, 09:37 AM	#677 (permalink)
DIGItonium A True Z Fanatic Join Date: Jan 2009 Location: Kansas Posts: 3,800 Drives: 09 Z34-TT 6MT Rep Power: 42	Davey, these situations do not require full throttle. Let's say you're making a left turn, going across the street, or get the car moving through an intersection from the light. You get in 1st to get the car going as usual and give it the usual moderate throttle. The the car revs to 2k RPM and hangs for about 1-2 seconds before ramping up. Normally the car would simply rev up in a linear fashion. At this point you realize you have to give it slightly more gas than usual or it will bog 1st gear. It simply feels heavy, and it goes from slightly lacking power to having no power. It feels like starting out in 2nd gear. Better yet, it is a similar feeling to VDC/TCS kicking in. No difference with it disabled. Your instinct tells you to give it more gas, right? So you'll go from 30% to 100% throttle the split second the car is hanging at 2k RPM, and it makes no difference. While holding down the pedal, the car will hang and start to rev up. It does not feel like 100% throttle. The exhaust sounds loud, but it does not scream and the car does not appear to move as fast as it sounds. Passenger would describe it as me lifting my foot and putting it back down. I'll even demonstrate with the foot down to the floor for a few seconds in 2nd to show them I'm really trying to floor it to their disbelief. Normally the car is eager to rev, and it screams in 1st. Plus, it's easy to peel out from a roll in 1st past 3k RPM. When this power loss kicks in, there's no chance of breaking loose the tires from a roll. There are cases where I'd like to get the car moving fast as traffic approaches, but it is scary to see it lag for a couple of seconds with the pedal to the floor. Even when it starts moving, it doesn't go crazy with the pedal to the floor. It feels like 50-60% throttle. I've yet to hear anything from the tech at Baker Nissan. __________________

05-21-2011, 06:14 PM	#682 (permalink)
6spd A True Z Fanatic Join Date: Aug 2009 Location: South Florida Posts: 3,001 Drives: Q50RS Rep Power: 25	yeah i was driving last night in a very secluded area practicing some fishtailing and th car was HOT, but no problems at all like you guys. __________________ -Jay- jonathanjamesphotographer.com

05-21-2011, 07:08 PM	#683 (permalink)
DIGItonium A True Z Fanatic Join Date: Jan 2009 Location: Kansas Posts: 3,800 Drives: 09 Z34-TT 6MT Rep Power: 42	No there is no need to step on it. It's just casual driving. All of my tests are done while the car is rolling, and it does not involve aggressive driving. If you watch the Youtube video posted, then you can see it's more than just lag. I'll do some more testing sometime once I get the headlights back on. __________________

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05-20-2011, 11:53 AM	#679 (permalink)
Pelican170 Track Member Join Date: Jul 2010 Location: Sandy Hook, CT Posts: 972 Drives: Nissan 370z Nismo Rep Power: 16	How is the installation on the Sprintbooster? haha im not very mechanical... I looked on the website and they make it look super easy. Is it really that easy?

05-20-2011, 12:20 PM	#680 (permalink)
Pelican170 Track Member Join Date: Jul 2010 Location: Sandy Hook, CT Posts: 972 Drives: Nissan 370z Nismo Rep Power: 16	Just talked to someone at Sprint Booster and gave me these instructions. Im assuming they are the same for the 370z. Seems simple enough... http://www.sprintboosterusa.com/download/sbni0012s.pdf

05-28-2011, 01:18 PM	#685 (permalink)
L8N8 Base Member Join Date: Feb 2010 Location: VA Posts: 36 Drives: fast, takes chances Rep Power: 15	Found a gun metallic NISMO and will be trading in for it this weekend. I'll be back on this thread if I encounter the same issue with that model. Good luck guys.

05-31-2011, 01:29 AM	#689 (permalink)
2ndChance Base Member Join Date: Feb 2011 Location: Panama Posts: 240 Drives: like he stole it Rep Power: 199	Just drove the car and experienced this lag for the first time.. I was about 20mph then suddenly floored it, and then a good 1.5 seconds passed before the car started to move.. It happened many times and specially when I'm going slow in a curve or something. I think it has to do with the VDC... will try again tomorrow in manual mode vdc off.