Sweet Spot

MrZ

I have a question. I have a 2009 CY 7AT. I have had the car since September and overall I love my Z and I am %110 satisfied with my choice vehicle and everything. But I have a question about the gas peddle. I have owned quite a few cars in my 26 years on this earth. This car being the first with a floor mounted gas peddle though. Anywho most days my Z is a blast to drive and some days more of a hassle. I have a certain pair of shoes i wear more because i have too because if I dont wear these shoes when i drive the car doesn't feel as responsive. When I take off the car is slow and the transmission shifts kinda jerky like. When I have on my driving shoes as I like to call them and my foot and is on the peddle a certain way it is all good i take off the transmisson shifts smooth and feels peppy. I give it gas and it responds no matter how fast or slow I am going. And if I dont have the driving shoes on then it is the exact opposite. Does anyone else have this problem and if so has anyone found a solution. And before anyone post about my car being an automatic or anything smart or rude like that I am seriously looking for an answer to a problem that is making it difficult to enjoy my Z everytime I drive it.

nmjaxx9

I have an 7AT, and I don't know about a certain kind of sneaker being more responsive than the other, but i do feel a delay in the time i press the pedal to when the car takes off. Now if im wearing boots (which I think I have only once or twice in the Z) I noticed no delayed reaction, I think because the larger sole of the boot fully covering the pedal and depressing it rather than the tip of my sneaker usually depressing the pedal.

semtex

*Pedal

I haven't experienced this problem per se, but certainly I've found it easier to drive with proper shoes. Like if I'm wearing shoes with a thick sole, pedal feel is reduced. I haven't that reduced feel translate into a less responsive throttle like you have, but I could see how that might happen. My guess is that the reduced pedal feel is causing you to depress the accelerator either less, or slower, or both. That in turn causes the perception of reduced engine responsiveness. Now, I'm speculating, obviously. There's no way to know for sure without actually having some instrumented readings on your throttle positions when you're wearing different shoes.

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316.8whp & 248 ft/lbs (Dyno Dynamics) | 319whp & 256 ft/lbs (DynoJet) (04/23/10)
Stillen G3 CAI, CBE, Pulley / F.I. LTH / GTSpec Ladder Brace / Setrab Oil Cooler / UpRev-tuned by Forged Perf.

MrZ

Spelling has never been my strong point. But that makes sense thanks

MrZ

I wasn't saying the sneaker makes the car more responsive. When I wear those sneakers my foots peddle placement makes the car more responsive.

kenchan

Damn, if you can't drive AT smoothly....

LakeShow

I kind of get what your saying. If I'm wearing thin and light sneakers like my Kobe's I can feel the pedal better. The pedal doesn't change, the lighter thinner the sneaker the better overall feel and control you have over the pedal. This goes for a Manual also, just a better feel of the pedal. It's logic, heavier thicker the shoe, more pressure needed. Lighter and thinner the shoe, less pressure needed and more responsive on pedal. Think about racecar drivers, they have super thin and light shoes.

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|2013 Audi S4|Ibis White/Black|S-Tronic P+|
|2013 370z|PearlWhite/Persimmon|Touring/Sport/Nav|F.I. CBE 18" CF|
|Sold|2011 370z|Gun Metallic|Touring/Sport/Nav|

Glokwork

If you want to take care of that delay and make the car much responsive and alive feeling......UPREV!!!!!!!!!!!!!

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DrEvil

I was going to say the same thing

MrZ

How much would an uprev tune cost? I have a few more parts I want to add, but when it is all finished, I want to get it tuned so they all work together properly.

DrEvil

About $500.00, but I don't think it's worth doing unless you've done other mods ( cai,cbe etc)

Guard Dad

Almost all of the cars that I've owned have had a top pivot gas pedal. I found the bottom pivot pedal of the Z a bit of a problem at first. With a bottom pivot pedal you may need to reposition your foot a bit (compared to a top pivot pedal) to allow smoother operation of the pedal. Try putting the bottom of your heel on the floor at the pedal pivot point and position the ball of your foot on the center line of the pedal (the ball of your foot should now be centered somewhere on the upper half of the pedal) and operate the pedal with with a rocking motion pivoting on your heel. Only after I made this minor change did I realize that I had been operating the pedal by sort of laying my foot on the floor and placing my toe at the very bottom of the pedal (this allowed me to easily swing my foot between the brake and the gas without lifting my foot from the floor which is kind of nice in heavy traffic), which works fine on a top pivot pedal but sucks for a bottom pivot pedal and makes it difficult to smoothly modulate the pedal.

Just a thought.

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2010 Brilliant Silver, Base w/Sport Package, AT7, Katzkin leather, upgraded audio and lots of Dynamat and a bunch of small stuff.

RCK

Guard Dad has it absolutely right. The unusual bottom pivot on the accelerator does pose problems unless you reposition your foot just like he says, so the ball of the foot is at or near the top. That way, take off is much, much smoother, no jumpy delays.

I have an '07 Infiniti G that poses exactly the same problem. Bought my son a 370Z; lucky for him he learned to drive, a stick no less, on my G.

MrZ

Thanks Gaurd Dad tried out your method this morning on a short trip to the grocery store. And to make sure it actually worked i used a thicker sole shoe and it worked like a charm. I tip my hat to you sir

Guard Dad

Glad it helped, as I said it worked for me and it became second nature in a very short time.

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2010 Brilliant Silver, Base w/Sport Package, AT7, Katzkin leather, upgraded audio and lots of Dynamat and a bunch of small stuff.