Some of us have been complaining about this since day 1. A few owners sold the 370Z because of it.

http://www.the370z.com/engine-drivet...dal-delay.html
http://www.the370z.com/engine-drivet...-response.html

It is possible to modify the throttle tables to improve response. In fact, turning off ETC in the ECU does wonders for throttle response, but you lose all the safety features.
http://www.the370z.com/tuning/43384-...tle-uprev.html

It's a strange feeling as if the ECU is holding back power because 1st gear starts are a bit rough at times when there is a noticeable transition from 1-3k RPM. There are times it really holds back power. With the foot on the ground, it feels like I'm in the wrong gear. Even the turbos take longer to spool up. It feels like it is aggressively cutting power or opening the throttle sooner.

I only get a "bogging" in first when the VDC kicks in. Happened once trying to merge onto a highway from a stop, had the guy behind me pissed, honking, because I made him brake because it too long to get going again.

It seems to get better w/ VDC off and the car warmed up (220*). Idk if it's an oil pressure thing or what, but pulling out of my subdivision in the morning is bog city. I drive 100% w/ VDC off now, since the car doesn't see the wet.

I get this too and launching at 3K RPMs helps a lot. Anything less and a Civic can take you off the line. Very embarrasing.
I did notice that this starts to happen when the oil temps get to 180+.... Hmmm

The above was very helpful, I know my tuner did some adjments to the plate % from a dig, Is that the same thing, I may have him take a look at you file. Thanx man

I always drive with the VDC off, Still SSLLLOOWW on the line ,LOL Till I ramp up I had a DAMN Mazda SUV stay door to door with me:shakes head:

The power (HP) on this engine at 2k is about 75hp. and at 3k about 125hp. If someone in a mini van just floors it at a light they will easily be putting out the same or more power if you just go with a nice smooth start in the hi 1ks low 2ks rpm.

:shakes head:

depending on your launch rpm's and your light timing ;)

The 350Z definitely has better response down low. It is whiplash inducing. With the 370Z I had issues blipping the throttle on downshifts because it wasn't as eager to rev when I tapped the pedal. On the 350Z, it was easy to blip the throttle and get it revving past 3k RPM. It's all in the software from how I see it.

The symptoms posted in the "Gas Pedal Delay" thread are EXACTLY what I am experiencing. Reading through that thread, tells me that this isNOT fixable, especially since I live in AZ...where nighttime temps are in the 90's. It didn't appear any of the top tuners had come up with a 100% solution?

PedZ...did you ask specifically if there was any additional tuning they could do to 100% eliminate this issue?

I did not. I main goal from the tune was to just get the car running as best as possible.

Im curious if its just related to oil temp...do you have an oil cooler installed? I notice this happens to me when oil temp reaches 220 and above (doesnt take long 5 minutes driving in town). it lags when in first, and the revs 'hang' a bit after coming off the throttle. this year I switched to red line oil and installed my gen3 intakes , I dont remember it being as bad last year but it could have been...Im hoping to install an oil cooler this summer, and maybe insulate/heat wrap my intakes. I've noticed slight lag in the past and considered getting that sprint booster, but now its seems much worse especially when the oil gets to 220 so I dont think that would solve this issue.

phaddi_inc

No oil cooler installed, but yes, I believe it may help. Being here in AZ, I hit 220 within 10 min of driving in the afternoon. I notice in the morning, the car is less likely to have the delay when the oil is cool and the temps are lower.

This is just truly frustrating...can't believe that Nissan, nor any tuners have developed a 100% solution...

I think I noticed it more when I installed my Typhoon air intakes. But it definaltely happens when oil temps get hot. 180+ I hope to get a tune soon and I hope this helps fix this issue.

wow, well im in northern Ontario Canada and my temps still get up fast under normal driving. there maybe something else going on, but Im gonna start with the oil temp, then maybe a tune (uprev now has rad fan speed control mod) hoping these will resolve it. I was saving for springs/spacers, but it seems that fund is now going towards the oil cooler ...

phaddi_inc

it's got to be related to engine temps and intake temps combined. I had this problem until I got my oil cooler, and tune with the radiator fan control. with the oil cooler alone the problem was still present. now that a tune and fan control has been done, I have had no issues with the throttle lag. oil temps never get above 200 even with aggressive driving.

Which cooler do you have?

Does anyone get this BOGGING with stock airbox or CAI like Stillen G3?

I am thinking it might be heatsoak that causes this.

I have the stock airboxes. Only mod is the F! 18" Stainless CBE.

in my sig, Stillen 19 row.

Are you taking off at 500rpm? Thats the only time mine bogs....

Yeah, really. Or maybe these guys that are bogging are taking off in 3rd? I find my car burns more gas when I rev it. Is that an issue?

If you don't have anything productive to add to the thread, don't post asinine comments. How about you read through the thread before posting and maybe you'll see this is a documented issue with the 370's...

I and others added productive comments in earlier posts. You have yet to report back. So, did you try launching your car at 3000 rpm with VDC off as was suggested to you? And how'd that work out? Have you gone to your dealer about this bogging? What did they say?

The gas pedal delay specifically happens when I launch normally, then "Punch it". One shouldn't have to launch at 3000rpm for the car to run correctly. A perfect example is if you are accelerating normally and have to floor it in case of an emergency.

I have tried this with the VDC off and it still occurs...but have not taken it into the dealer yet, primarily based on the 48 page thread posted above where others have taken it in and the dealer was no help.

Anyway...my apologies if my response was short, I definitely know how to drive the car, and am not taking off in 3rd gear. This is primarily a 1st gear problem.

I have noticed this does not occur in the mornings when the air temp and the car is cool...but as soon as it heats up...Bog city.

do you have an uprev tune? I know that the new fan control helps this alot. I had the same issue as well but since the fan control was "tuned" on my car the lag has all but gone away. this, coupled with an oil cooler has worked wonders.

This seems to be the only solution that I have read that (nearly) 100% solves the problem, so I'll add the 34 Row Z1 Oil cooler...then do the UpRev with the Fan control tune...

cool man, it will be money well spent. why nissan chose not to implement these two things in stock form is a mystery. hopefully it will resolve your issues. report back on the thread to let us know how it went when all is done.

It's even worse with the A/C running. There are times I'm literally flooring it and it's barely achieving warp speed with the turbos haha.

lol, thats gotta be irritating! someone has got to figure this out. whoever does is going to make some money!!!!

its normal, it has to due with the throttle response and the amount of fuel being dumped into the engine. Its no different than trying to floor it at 50mph in 6th gear. There is a certain timeframe (speed to gear or rpm's to launch) that your car will respond best at. I launch my car at almost 2k and it takes off fine. What people are also failing to realize is IT'S NOT A V8! Dont expect to get your head shot back upon take off, unless you rebuild the bottom end of the car and force induct the car.

and like the gentleman stated in this thread, a lot of us have put 2cents of good info in but you hvae yet to report back.

I have reported back. And the thread has NOTHING to do with "getting your head shot back". It has EVERYTHING to do with the car falling on its face, due to the SHITTY Nissan ECU tuning for a period of 1-2 seconds before the engine catches up. God forbid I ever need to punch it to avoid an accident or something. This car is BLATANTLY unsafe the way it is running now. PERIOD.

I am willing to add an aftermarket oil cooler, or an aftermarket tune, or both, as necessary, to correct something that NISSAN should have addressed LONG AGO. This has been an issue since the 09's came out...

Yes i agree, Nissan should have added an oil cooler from the factory...having said that, Im done stressing over it. Im getting my oil cooler next week, and in July im getting the uprev tune with the fan control mod. I believe its all related to oil temp and heat soak. Hopefully that will solve 90% of the problem, and i will be happy. :icon17:

To those who disregard the problem as 'normal' or bad driving habits, clearly you have not experienced this issue. If it was a normal characteristic of the car it would happen all the time and not sometimes, and I certainly hope anyone who has purchased a 370Z knows its a V6 (not a V8). :tiphat:

phaddi_inc

Yes. And to say this is "normal", or is due to the drive by wire, or some other reason other that NISSAN's SHITTY ECU programming is patently FALSE. My Twin Turbo Porsche has drive by wire, and does not suffer from any gas pedal delay due to heat soak or otherwise. My Chevy Silverado does not have drive by wire, and it does not does not suffer from gas pedal delay.

You nailed it Phaddi...its up to the private owner to fix a problem that NISSAN should have addressed 3 years ago. That's what I will do, as I do love the car otherwise...its just a shame Nissan continues to offer a car that is 95% done (as witnessed when Car & Driver stuffed a NISMO into the wall during a track day shootout due to inadequate brake pads...that is inexcusable for a performance car).

Agreed. Couple this with people stating it gets worse with oil temp and I think you've got an ECU that overcompensates when it comes to percieving damage to the powertrain due to high oil temps.

well it is what it is I suppose...I knew about the lack of oil cooler before purchasing the vehicle (still went ahead and purchased it), and figured if needed i'll install one. Most reviews I watched mentioned it, and Nissan even included coolers on some Zs they had leant for review. At some point I was in denial because I dont track my car, but after a couple mods and a bit of spirited driving (or 5-10min of trafic), I realized its a must. There may be other issues with the ecu/drive by wire/stock tune, but im just gonna keep it simple and get this cooler asap. Once its installed and the uprev tune is on i'll report back.

phaddi_inc

You clearly have not experienced this issue on your car. You either have an AT or are blessed to not have it on your MT. No need to have a V8 to overcome this. Lots of cars that are not V8's don't do this and do not bog off the line. I have a V6 Isuzu Rodeo and it comes off the line great 100% of the time. Not so much on my 370Z. I have Civics and mini vans that come off stronger off the line when this issue happens on my Z. They make me look like an idiot when it happens too. Like others said, when the car is cold, it's fine. It's when it gets "HOT" it does it bad. And yes launching at 3,000 RPMs helps a lot. But we shouldn't have to do that to overcome this issue.

I recently had this happen to me in some stop and go traffic on a warm day. BOG CITY. It is definately due to overheating of the engine.

To the OP:

You've got a 2012 Z with no factory oil cooler? I thought all of them got it installed as of 2012 production year...

I'm about to get my 2012 Z in the next couple of weeks... eeeek