Gas Pedal Delay

DIGItonium · 10-25-2010, 04:22 PM

Quote:

Originally Posted by 6spd

i still think they secretly put varying levels of "engine protection" in without telling us. Like small steps in power reduction as oil temps creep past 210-220. its a possibility?!

Yea, 220F is the norm that I see when daily driving in 75F+ ambient (after 30min of freeway and stop-go city traffic). You would think they would start cutting power beyond that. My butt feels a difference in 2nd and 3rd around 200F. But yea, that pretty much explains why I can't light up the tires rolling in 1st when the oil temps are close to 220F.

At 23.5 MPG, you can sorta see what my driving habits are. It's just casual everyday driving. Even in that scenario the ECM is cutting power which can take my by surprise while making a turn or merging and having minor trouble keeping up with traffic (i.e., not as fast as anticipated).

christian370z · 10-25-2010, 04:42 PM

Quote:

Originally Posted by DIGItonium

At 23.5 MPG, you can sorta see what my driving habits are. It's just casual everyday driving. Even in that scenario the ECM is cutting power which can take my by surprise while making a turn or merging and having minor trouble keeping up with traffic (i.e., not as fast as anticipated).

It definately takes a few WOT pulls for the car to really give full power as the ECU adjusts to different driving styles. As the temperature went up, I could feel power going down without a doubt not to mention slower throttle response but I never got hang ups while revving nor the type of power cut you have.

Getting an oil cooler made all the difference for me, keeping the oil temperature down around 180 makes the car feel like an animal with noticeably more aggressive power delivery and throttle response; have you considered getting one?

atx370z · 10-26-2010, 11:40 PM

Quote:

Originally Posted by christian370z

It definately takes a few WOT pulls for the car to really give full power as the ECU adjusts to different driving styles. As the temperature went up, I could feel power going down without a doubt not to mention slower throttle response but I never got hang ups while revving nor the type of power cut you have.

Getting an oil cooler made all the difference for me, keeping the oil temperature down around 180 makes the car feel like an animal with noticeably more aggressive power delivery and throttle response; have you considered getting one?

Your temps stay around 180? I have an oil cooler and i hit 200 regular driving... sometimes around 210. Keep in mind.. it used to be 220 regular driving and would get near 230.

christian370z · 10-27-2010, 12:03 AM

Quote:

Originally Posted by atx370z

Your temps stay around 180? I have an oil cooler and i hit 200 regular driving... sometimes around 210. Keep in mind.. it used to be 220 regular driving and would get near 230.

What size cooler do you have? I have seen maybe 200 while sitting in traffic for 30 minutes but as soon as I start moving, it drops down to 180-190 in city speeds and below 180 cruising on the highway. Maybe your ambient temperatures are higher too being in TX.

ChrisSlicks · 10-25-2010, 05:01 PM

Quote:

Originally Posted by DIGItonium

Yea, 220F is the norm that I see when daily driving in 75F+ ambient (after 30min of freeway and stop-go city traffic). You would think they would start cutting power beyond that. My butt feels a difference in 2nd and 3rd around 200F. But yea, that pretty much explains why I can't light up the tires rolling in 1st when the oil temps are close to 220F.

At 23.5 MPG, you can sorta see what my driving habits are. It's just casual everyday driving. Even in that scenario the ECM is cutting power which can take my by surprise while making a turn or merging and having minor trouble keeping up with traffic (i.e., not as fast as anticipated).

I'm not sure I'm buying into that story from the tech whole heartedly. Yes the engine is going to cut back power indirectly by pulling timing as the intake temperatures rise, but not as severely as your car seemed to be experiencing. I mean I can beat on the car at auto-x or at a race track and have never really encountered the problems you are experiencing, and that was with the oil temp hovering between 240 and 260.

DIGItonium · 10-25-2010, 07:06 PM

Quote:

Originally Posted by 6spd

That is still weird though how I dont feel what you are describing... are you gonna try an oil cooler?

You're right. It is a very noticeable problem, and it is pretty bad during the summer. When I give it more gas, the exhaust gets loud, but the car doesn't budge (i.e., feels like accelerating in too high of a gear).

Quote:

Originally Posted by christian370z

Getting an oil cooler made all the difference for me... have you considered getting one?

As weird as it sounds for ambient temps averaging upper 60s to lower 70s this time of year for daily driving, I may get one. Either way, I'll be getting one once I pull the trigger on the F.I. project early next year. I've been a bit hesitant to go F.I. because of these issues. Based on your experience, if the oil cooler keeps me under 200F in daily driving conditions and resolves these power cut issues I'll be happy!

Quote:

Originally Posted by ChrisSlicks

I'm not sure I'm buying into that story from the tech whole heartedly...

That's the weird thing. Some people get it and some people don't. Have you seen my YouTube video demonstrating the cut in power? It doesn't take hard driving to notice power being cut. However, as others may have jokingly mentioned, simply drive above 3k RPM and it'll be fine.

dlmartin81 · 10-25-2010, 07:36 PM

Quote:

Originally Posted by DIGItonium

You're right. It is a very noticeable problem, and it is pretty bad during the summer. When I give it more gas, the exhaust gets loud, but the car doesn't budge (i.e., feels like accelerating in too high of a gear).

Yup, same here. And it's usually under 3.5K, correct? Oh, and it's really bad if you're stopped on a serious incline and try to get going.

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
7AT rev delay?	Vegitto-kun	Engine & Drivetrain	16	05-04-2010 05:17 PM
2 things delay in a shift and a sound 7at	jtown82	Engine & Drivetrain	19	04-03-2010 01:30 AM
Headlight delay	Jack370Z	Nissan 370Z General Discussions	7	10-30-2009 03:02 PM
A7 Upshift Delay?	hey32g	Nissan 370Z General Discussions	15	10-12-2009 11:20 AM
Automatic Downshift Delay	drdre8424	Nissan 370Z General Discussions	2	07-25-2009 10:56 PM