Gas Pedal Delay

m4a1mustang · 03-11-2011, 03:10 PM

Quote:

Originally Posted by haggomyeggo

mustang-
did you ever try DIGIs shim idea.

i havent noticed the problem in the last couple days but i was going to check it out this weekend. just wondered if you ever tried

I did not try it.

Honestly, if you don't really experience it or have found a way to drive around it I'd just do that. Or just boost the thing and forget about it forever.

haggomyeggo · 03-11-2011, 03:26 PM

i just notice it doesnt drop the revs very quickly sometimes. like it revs up quick then holds and drops kinda slow. (in neutral) it could just the the flywheel but i thought the drive shaft is a carbon composite of some type so thats should let it rev pretty freely.

most of this could also be my head after reading topics like this.........
just gotta make it till 4 and go drive and enjoy it

m4a1mustang · 03-11-2011, 03:30 PM

Quote:

Originally Posted by haggomyeggo

i just notice it doesnt drop the revs very quickly sometimes. like it revs up quick then holds and drops kinda slow. (in neutral) it could just the the flywheel but i thought the drive shaft is a carbon composite of some type so thats should let it rev pretty freely.

most of this could also be my head after reading topics like this.........
just gotta make it till 4 and go drive and enjoy it

You'll notice with regular driving that with SRM on, the engine revs hold for a moment while you are shifting gears. With SRM off, the revs drop much more quickly.

The mass of the flywheel does have some effect, but there is a very noticable difference with SRM on and SRM off.

haggomyeggo · 03-15-2011, 09:32 AM

Quote:

Originally Posted by m4a1mustang

You'll notice with regular driving that with SRM on, the engine revs hold for a moment while you are shifting gears. With SRM off, the revs drop much more quickly.

The mass of the flywheel does have some effect, but there is a very noticable difference with SRM on and SRM off.

so i tried driving with the SRM off and yeah there is a difference with the SRM off. The engine responds when shifting up much quicker. However at the same time you miss those perfect blipped downshifts. I am ok at doing it but not as good as SRM.

its a hard decision to make sometimes but the car is simply great either way.

im saddened by the problems some of you are having with yours

IcedZ · 03-16-2011, 07:19 AM

Quote:

Originally Posted by haggomyeggo

so i tried driving with the SRM off and yeah there is a difference with the SRM off. The engine responds when shifting up much quicker. However at the same time you miss those perfect blipped downshifts. I am ok at doing it but not as good as SRM.

its a hard decision to make sometimes but the car is simply great either way.

im saddened by the problems some of you are having with yours

I'm even more sad

On another note, the tech that I worked with several months ago said he was going to call me about the 3rd week of march. Hopefully he can quantify the problem.
Again, I am encouraging those of us with the problems to go to Nissan about this. It needs to be heard.

haggomyeggo · 03-11-2011, 03:42 PM

hmm. interesting never considered that. SRM is fun to play with with you are hustling around a corner and the novelty will wear off im sure

but i will have to try driving with it off.

m4a1mustang · 03-11-2011, 03:44 PM

Quote:

Originally Posted by haggomyeggo

hmm. interesting never considered that. SRM is fun to play with with you are hustling around a corner and the novelty will wear off im sure

but i will have to try driving with it off.

For me, my shifts were always smoother with SRM off. But you're right, it's fun blasting around some curvy roads. It makes you look like a pro... and helps you focus on the corners ahead instead of matching your revs perfectly, but that's half the fun.

haggomyeggo · 03-11-2011, 03:55 PM

slightly off topic but 4 minutes till im off work and have the whole weekend to enjoy my car!!

6spd · 03-11-2011, 04:00 PM

Quote:

Originally Posted by haggomyeggo

slightly off topic but 4 minutes till im off work and have the whole weekend to enjoy my car!!

nice to hear someone say they are going to enjoy their Z, the current trend seems to be to bitch and moan and whine about every small thing...

to you sir, im going to do the same!

m4a1mustang · 03-11-2011, 04:00 PM

Quote:

Originally Posted by 6spd

nice to hear someone say they are going to enjoy their Z, the current trend seems to be to bitch and moan and whine about every small thing...

to you sir, im going to do the same!

LOVE your signature... I swear his character is one of my heros.

6spd · 03-11-2011, 04:01 PM

Quote:

Originally Posted by m4a1mustang

love your signature... I swear his character is one of my heros.

awesome!

DIGItonium · 03-12-2011, 02:55 PM

The weather is very nice with temps in the low 60s. Oil temps barely touch 200F from a whole day of driving. I was leaving from volleyball practice, started the car, and the it felt very good. Acceleration is smooth and quick without requiring much throttle input. After driving for awhile I started to bog the car more than usual as if I'm not giving enough gas when engaging 1st. I even killed it going in reverse. I made a left turn and tried to give it more gas and let it rev past 4k, but the car felt like it was struggling to move. The car felt like it had the power of a 4cy sedan going up a slope, and the acceleration was pitifully slow. Throttle response is fine. I can inch back and forth on it, and it responds immediately. It just has no power to move.

Therefore, I believe the engine is losing power after awhile regardless of oil temps. It idles fine, revs fine, but it literally has no power. The car felt heavier than usual. Turn the car off, let it cool for a bit, and the power comes back on tap for several minutes of driving before losing power again.

This explains the phenomenon of why a Hummer, Corolla, and even a G37 can casually out accelerate me through an intersection even if I gave it 50% throttle.

m4a1mustang · 03-12-2011, 03:28 PM

Quote:

Originally Posted by DIGItonium

The weather is very nice with temps in the low 60s. Oil temps barely touch 200F from a whole day of driving. I was leaving from volleyball practice, started the car, and the it felt very good. Acceleration is smooth and quick without requiring much throttle input. After driving for awhile I started to bog the car more than usual as if I'm not giving enough gas when engaging 1st. I even killed it going in reverse. I made a left turn and tried to give it more gas and let it rev past 4k, but the car felt like it was struggling to move. The car felt like it had the power of a 4cy sedan going up a slope, and the acceleration was pitifully slow. Throttle response is fine. I can inch back and forth on it, and it responds immediately. It just has no power to move.

Therefore, I believe the engine is losing power after awhile regardless of oil temps. It idles fine, revs fine, but it literally has no power. The car felt heavier than usual. Turn the car off, let it cool for a bit, and the power comes back on tap for several minutes of driving before losing power again.

This explains the phenomenon of why a Hummer, Corolla, and even a G37 can casually out accelerate me through an intersection even if I gave it 50% throttle.

I never said anything about it because it was pretty embarassing, but I got out-gunned once by a Prius at WOT because the car just wouldn't go without a 5k RPM clutch drop.

DIGItonium · 03-13-2011, 10:52 AM

Quote:

Originally Posted by m4a1mustang

I never said anything about it because it was pretty embarassing, but I got out-gunned once by a Prius at WOT because the car just wouldn't go without a 5k RPM clutch drop.

Haha... I'm not convinced if it's completely oil temperature related. I'm not much of a gear head, but I did some search on lack of acceleration and loss of throttle response. There were a few posts about faulty fuel pump. One member here suggested it as well.

I'm planning to get TT this July at Baker, and I believe the install process involves getting new spark plugs and upgrading the fuel pump. I'll get back with you guys later in July.

IcedZ · 03-13-2011, 01:33 PM

Quote:

Originally Posted by DIGItonium

The weather is very nice with temps in the low 60s. Oil temps barely touch 200F from a whole day of driving. I was leaving from volleyball practice, started the car, and the it felt very good. Acceleration is smooth and quick without requiring much throttle input. After driving for awhile I started to bog the car more than usual as if I'm not giving enough gas when engaging 1st. I even killed it going in reverse. I made a left turn and tried to give it more gas and let it rev past 4k, but the car felt like it was struggling to move. The car felt like it had the power of a 4cy sedan going up a slope, and the acceleration was pitifully slow. Throttle response is fine. I can inch back and forth on it, and it responds immediately. It just has no power to move.

Therefore, I believe the engine is losing power after awhile regardless of oil temps. It idles fine, revs fine, but it literally has no power. The car felt heavier than usual. Turn the car off, let it cool for a bit, and the power comes back on tap for several minutes of driving before losing power again.

This explains the phenomenon of why a Hummer, Corolla, and even a G37 can casually out accelerate me through an intersection even if I gave it 50% throttle.

YES! THIS! It feels VERY heavy. Temp has little to do with it I'm sure now. (I was quite convinced it was before). This happens with in city driving more than highway. I've had my car stall in reverse and first, and nearly stalled it several times since last summer due to complete lack of power. I know your feeling very well.

03-12-2011, 02:55 PM	#12 (permalink)
DIGItonium A True Z Fanatic Join Date: Jan 2009 Location: Kansas Posts: 3,800 Drives: 09 Z34-TT 6MT Rep Power: 43	The weather is very nice with temps in the low 60s. Oil temps barely touch 200F from a whole day of driving. I was leaving from volleyball practice, started the car, and the it felt very good. Acceleration is smooth and quick without requiring much throttle input. After driving for awhile I started to bog the car more than usual as if I'm not giving enough gas when engaging 1st. I even killed it going in reverse. I made a left turn and tried to give it more gas and let it rev past 4k, but the car felt like it was struggling to move. The car felt like it had the power of a 4cy sedan going up a slope, and the acceleration was pitifully slow. Throttle response is fine. I can inch back and forth on it, and it responds immediately. It just has no power to move. Therefore, I believe the engine is losing power after awhile regardless of oil temps. It idles fine, revs fine, but it literally has no power. The car felt heavier than usual. Turn the car off, let it cool for a bit, and the power comes back on tap for several minutes of driving before losing power again. This explains the phenomenon of why a Hummer, Corolla, and even a G37 can casually out accelerate me through an intersection even if I gave it 50% throttle. __________________ Last edited by DIGItonium; 03-12-2011 at 02:57 PM.

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03-11-2011, 03:26 PM	#2 (permalink)
haggomyeggo A True Z Fanatic Join Date: Mar 2011 Location: IL Posts: 1,723 Drives: Steves old cars Rep Power: 18	i just notice it doesnt drop the revs very quickly sometimes. like it revs up quick then holds and drops kinda slow. (in neutral) it could just the the flywheel but i thought the drive shaft is a carbon composite of some type so thats should let it rev pretty freely. most of this could also be my head after reading topics like this......... just gotta make it till 4 and go drive and enjoy it

03-11-2011, 03:42 PM	#6 (permalink)
haggomyeggo A True Z Fanatic Join Date: Mar 2011 Location: IL Posts: 1,723 Drives: Steves old cars Rep Power: 18	hmm. interesting never considered that. SRM is fun to play with with you are hustling around a corner and the novelty will wear off im sure but i will have to try driving with it off.

03-11-2011, 03:55 PM	#8 (permalink)
haggomyeggo A True Z Fanatic Join Date: Mar 2011 Location: IL Posts: 1,723 Drives: Steves old cars Rep Power: 18	slightly off topic but 4 minutes till im off work and have the whole weekend to enjoy my car!!