G35 Sedan V35 2003-06 Discussion about the 1st Generation V35 G35 Sedan

acceleration lag when flooring pedal

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  #16  
Old 11-09-2008, 05:20 PM
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It's probably the car taking a second to downshift.
+1

Its normal....get the 6spd if you want instant throttle response.
+2
 
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Old 11-09-2008, 05:36 PM
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its an auto... when you floor it the transmission fluid has to shift around and select the appropriate gear and then it takes off.
 
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Old 11-09-2008, 05:50 PM
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you guys are speaking in pretty general terms... not all ATs or sedans by any means... I'm putting down good trq from down low across entire rpm (mean trq on CAT Dynojet is 245, peak is 261 @ 4600)... I have no problem pulling of most MT and coupes in general from the dig (even before recent mods)... with the right attention to tune and correct mods I don’t have the issues mentioned.

If we are referencing bone stock, I don’t remember; my car was stock for about 5 months and that was years ago.
 
  #19  
Old 11-09-2008, 08:32 PM
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well i definetly tried and liked the tip tronic. it helped alot when i was racing the brand new EVO MR but still lost! ha helped me get off the start right away. so anyone else having this problem just use tip tronic and keep it at higher rpms..
and here are some more pic's of my blue eyes:
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and my cool blinker

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Last edited by Black Rain; 11-09-2008 at 10:14 PM.
  #20  
Old 11-09-2008, 10:09 PM
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Heh, this is why I always drive in tip. Best thing I can do without having MT
 
  #21  
Old 11-09-2008, 10:16 PM
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ya im going to start always doing it.. when your cruising through a neighborhood or parking lot what gear do you stay in? is it best to just keep at low rpms for gas mileage?
 
  #22  
Old 11-10-2008, 02:04 PM
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Whether you have auto or 6MT, there isn't going to be a whole lot of power below 3000rpms. These engines have good torque, but when you've got to motivate 3,400lbs and let the cams come online which occurs around 3000-3500rpms. Also, the throttle sensitivity is reduced slightly in the lower rpms so that non-performance drivers don't leap out into traffic. This throttle issue is easily solved with a ECU flash from TS or Uprev.

BTW, if you guys think the throttle-by-wire in the G is bad, try driving most any other late model car. I rent tons of cars for work and I find the Nissan has some of the best throttle programming on the market. Toyotas and Fords are pretty dismal and laggy.
 
  #23  
Old 11-10-2008, 02:08 PM
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Last time my throttle response decreased, it ended up being the piston rings in the engine.
 
  #24  
Old 11-10-2008, 02:22 PM
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You should see the throttle lag on some Volvos and Mercedes...
 
  #25  
Old 11-10-2008, 02:26 PM
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my X has very little to no "drive by wire" lag in auto or manual mode since adding a SBD 10 wire(4 guage) grounding kit. The stillen grounding kit is incomplete and has 8 guage wire... it also dosent ground the ECU, transmission, or AWD control unit.

check this link from g35club.org http://forums.nicoclub.com/zerothread/345479
 
  #26  
Old 11-11-2008, 03:23 AM
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just ordered the add on kit thanks! but the tip definetly works.. lost to the new 2007 or 2008 not sure Evo (automatic)... lost to it starting at a stop and at ~15mph but at ~25mph i won about a car length or less cuz of tip. in normal drive i lost by a LOT
 
  #27  
Old 11-11-2008, 10:25 AM
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Originally Posted by 07SilverG
its an auto... when you floor it the transmission fluid has to shift around and select the appropriate gear and then it takes off.
The lag I have recorded begins at about 12 to 16 mph. The car left the line in 1st gear because I started by pre-loading the drive train against the brakes at about 1500rpm.
 
  #28  
Old 11-11-2008, 11:00 AM
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Originally Posted by Black Rain
just ordered the add on kit thanks! but the tip definetly works.. lost to the new 2007 or 2008 not sure Evo (automatic)... lost to it starting at a stop and at ~15mph but at ~25mph i won about a car length or less cuz of tip. in normal drive i lost by a LOT
I've had a grounding kit on my G 5AT (GG 12 wire kit) and it didn't anything to improve throttle or shift response.

First off, street races don't prove squat because you don't know who's leaving first. Just a mere .3 second jump means a 14.2 car will lead a 14.0 second car in the 1/4 mile. You can't even really see a .5 second jump and that would give you a HUGE advantage.

As for racing from a stop. Are you braking stalling the torque converter? Launching off idle won't do squat. Additionallly, hitting the throttle from a slow roll like 5mph to 15mph doesn't work well either because you're well out of the power band therefore you'll get a bog. Nail the throttle from 15mph in a 6MT car and you'll get the same boggy effect as well. What you guys are feeling is not a throttle lag. Instead, you're simply out of the powerband.
 
  #29  
Old 11-12-2008, 03:04 AM
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Originally Posted by kmckis1029
my X has very little to no "drive by wire" lag in auto or manual mode since adding a SBD 10 wire(4 guage) grounding kit. The stillen grounding kit is incomplete and has 8 guage wire... it also dosent ground the ECU, transmission, or AWD control unit.

check this link from g35club.org http://forums.nicoclub.com/zerothread/345479
+1000000, I recently installed Gordgee's 10wire kit, and I definitely noticed a much smoother and quicker shift. What used to be a burp on a gearshift is now just a hiccup lol. Next thing I might get done is a throttle body upgrade, on my way to Vortech city. Gota do a but moe research
 
  #30  
Old 11-12-2008, 12:38 PM
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Originally Posted by Black Rain
well i definetly tried and liked the tip tronic. it helped alot when i was racing the brand new EVO MR but still lost! ha helped me get off the start right away. so anyone else having this problem just use tip tronic and keep it at higher rpms..
and here are some more pic's of my blue eyes:




and my cool blinker

Interesting setup, are those white LED's behind the grille?

Any issues with cops & the blue rings? I'd think those would scream "pull me over"...didn't think you can have blue lights on a car.

BTW - pretty ballsy of you to race an EVO...I wouldn't even bother wasting my time....did you drive away w/ your tail between your legs?
 


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