"Bogging" in first gear

ANMVQ · 06-08-2012, 11:13 AM

Quote:

Originally Posted by sfearl1

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 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

2011 Nismo#91 · 06-08-2012, 12:16 PM

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.

sfearl1 · 06-08-2012, 12:19 PM

roy'sz · 06-08-2012, 01:09 PM

depending on your launch rpm's and your light timing

DIGItonium · 06-08-2012, 02:59 PM

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.

bushman66 · 06-09-2012, 03:18 PM

Quote:

Originally Posted by DIGItonium

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

Gas Pedal Delay
Loss in acceleration + throttle response ??

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.
Smooth Throttle for UpRev

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.

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?

bushman66 · 06-09-2012, 03:31 PM

Quote:

Originally Posted by pedZ

Hey Bushman, I have some feedback from the UpRev tune. The tune definitely helped the issue. There still does seem to be a lag in the lower RPMs but it's not nearly as noticeable. I guess the best way I can explain it is that it has been smoothed out so that you don't notice it. In fact, the car is much smoother throughout the entire RPM range.

My car was running rich before the tune (in the 11s) and is now between 12.5 and 13. This helped out the car a lot and I gained 12hp overall from the tune.

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

pedZ · 06-09-2012, 05:24 PM

Quote:

Originally Posted by bushman66

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.

Phaddi_inc · 06-11-2012, 12:31 AM

Quote:

Originally Posted by bushman66

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

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

bushman66 · 06-11-2012, 10:08 AM

Quote:

Originally Posted by Phaddi_inc

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...

tjlazer · 06-11-2012, 01:29 PM

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.

Phaddi_inc · 06-11-2012, 03:26 PM

Quote:

Originally Posted by bushman66

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...

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

henry0844 · 06-11-2012, 03:58 PM

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.

bushman66 · 06-11-2012, 05:13 PM

Which cooler do you have?

tjlazer · 06-12-2012, 02:27 PM

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

I am thinking it might be heatsoak that causes this.

06-08-2012, 12:19 PM	#48 (permalink)
sfearl1 A True Z Fanatic Join Date: Oct 2011 Location: St. Louis Posts: 2,300 Drives: 2013 FBO E85 GTR Rep Power: 18	__________________ Scott

06-08-2012, 02:59 PM	#50 (permalink)
DIGItonium A True Z Fanatic Join Date: Jan 2009 Location: Kansas Posts: 3,800 Drives: 09 Z34-TT 6MT Rep Power: 43	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. __________________

06-11-2012, 01:29 PM	#56 (permalink)
tjlazer A True Z Fanatic Join Date: Dec 2009 Location: Tacoma Age: 53 Posts: 2,496 Drives: Z34, R35 Rep Power: 20	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. __________________ 2009 370Z Monterey Blue,Nismo Conversion,RE-11's, K&N Typhoon intakes,Blue Kickplates,Homelink,FI 18" CBE,ERZ HFCs,Hotchkis sways, Swift Spec-R, EVO-R Highwing, UPREV

06-11-2012, 03:58 PM	#58 (permalink)
henry0844 Base Member Join Date: Oct 2010 Location: ventura Posts: 167 Drives: 10 370 base sprt pkg Rep Power: 15	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. __________________ 2010 PW 370 base+sport 6mt Stillen g3's/ Berk CBE / Stillen 19 row/ uprev: 308whp 255wtq dyno jet @ specialty z.

06-12-2012, 02:27 PM	#60 (permalink)
tjlazer A True Z Fanatic Join Date: Dec 2009 Location: Tacoma Age: 53 Posts: 2,496 Drives: Z34, R35 Rep Power: 20	Does anyone get this BOGGING with stock airbox or CAI like Stillen G3? I am thinking it might be heatsoak that causes this. __________________ 2009 370Z Monterey Blue,Nismo Conversion,RE-11's, K&N Typhoon intakes,Blue Kickplates,Homelink,FI 18" CBE,ERZ HFCs,Hotchkis sways, Swift Spec-R, EVO-R Highwing, UPREV

06-08-2012, 12:16 PM	#47 (permalink)
2011 Nismo#91 A True Z Fanatic Join Date: Mar 2011 Location: NJ Posts: 2,407 Drives: slowly Rep Power: 40569	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.

06-08-2012, 01:09 PM	#49 (permalink)
roy'sz A True Z Fanatic Join Date: Aug 2011 Location: palmdale, ca Posts: 1,299 Drives: 2010 nissan 370z Rep Power: 16	depending on your launch rpm's and your light timing

06-11-2012, 05:13 PM	#59 (permalink)
bushman66 Base Member Join Date: May 2010 Location: AZ Posts: 112 Drives: 2012 370Z Red Sp Pkg Rep Power: 15	Which cooler do you have?

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