Question about V4 mode

[Grumpy Bear]

1 hour ago, KARNUT said:

I can see that. My question is how do you get away with 55 in a 70? ……………….  If try that on interstate 10 from Texas to the east coast they’d play bumper cars with me.

There are absolutely areas of this country where doing so is an invitation to disaster. Anywhere inside the Chicago area is much like I-10 or the Atlanta area. But I would expect that I-10 in the more rural areas is no different than I-80 up here. It has two lanes. In fact I noticed just the other day going down I-39 one of those over the Interstate electric signs that says in alternating fashion: 

 

PASS IN THE LEFT LANE...….DRIVE IN THE RIGHT LANE...…...IT'S THE LAW

 

Yet when I look down the road they are two abreast and one hundred and fifty deep. There is another sign on another section of state divided four lane than says: 

 

DRIVING IS FRUSTRATING ENOUGH...….LET THEM IN

 

The point of law is to make order from chaos. A speed limit is the posted maximum but doing it isn't not the law (required). Some roads in some states will have a posted minimum and some states like Illinois don't have a minimum. Those two signs above if followed would make it work for everyone no matter what their speed smooth as silk but.....

 

How I handle it? I hate the hornets nest so bad I will drive 50 miles around Chicago to avoid going through it. Nashville and Atlanta I do in the middle of the night. In the rural sections of this country I get right and drive somewhere between the min and max and let others decide what laws they wish to break and what risk they are willing to take. My 15 under is no more dangerous than their 15 over. If it gets totally stupid I find a parallel state or county road or simply take a break until the rats have finished their race. There's an APP for that...WAZE.

 

People will ignore laws that are intended to provide fluid flow of traffic for all disciplines of speed to the point that traffic comes to a complete stop. I pushed my Harley through Nashville for two hours once hitting RUSH hour on a 100 degree day. That was fast and my education to the drive around. Driving around cities will often get you there hours ahead of the rats nest grid locked ignorance of humans. Out in the open......I feel no compunction to joint the lawless and dangerous.

 

 

 

 

[Grumpy Bear]

40 minutes ago, diyer2 said:

As far as the AFM, it doesn't get used. There are 2 roads where it will engage if I let it. One going down hill for maybe a mile and the other road about a mile of flat area.

The gear change would raise the RPM's but I don't know if it would keep it in the power band more. Mileage may suffer some due to more RPM's at a given speed.

I did my playing with motors, transmissions in the 70's racing quarter mile. Now reliability and getting high mileage out of my vehicles is a priority.

 

I'll add this. 

To the best of my knowledge my 1970 Nova SS, 350 C.I., 4 bolt mains, high compression pistons, fuely heads, 411 gears, 4 speed tranny set up by B&M lived in the 5- 6 K rpm range at the track. Street driving 2-4 K rpm's. It got terrible gas mileage.

My truck lives in the 1500 to 3 K rpm range now. I like that, less wear.

 

I had a 65 Ford like your Nova. 8 mpg was as good as it got and she was screaming at 60 mph. 

 

So last night I went for a drive of about 85 miles. After a warm up I head down the Interstate (off hours) over hill and dale, mostly 3% or less but rolling Illinois typical. Down and back three times all at 55 mph and taking info from my Scan Gauge. 8 mph crosswind. 

 

1.) 55 M6 cruise control set over the twenty mile loop (3.23 gear). 30.4 mpg

2.) Same speed in M5 simulating a 4.10 on the open road.  26.6 mpg This disables the AFM. 

3.) Get up to 55 in M5, Engage the tow mode then shift up to M6. This hold the box in 5th gear but allows the AFM normal operation. 29.2 mpg. (still it was only spinning a bit over 1700 rpm...loafing) 

 

Even if a 3% grade was a half mile long the AFM stayed engaged UNLESS a truck passed me. That wall of air would disengage it and then reacquire at the hills crest. I was kind of surprise how tenaciously it hangs on during accents. 

 

I know this is a small data set but I wasn't looking of precision of result but rather tendency of the AFM to stay active to which it seems a roaring success. Although I would guess that it might do as well or better with a 3.73 gear and get back that last MPG. If nothing else it showed that the AFM when operated within it's load boundaries can add a significant contribution to fuel efficiency. 

[KARNUT]

There are absolutely areas of this country where doing so is an invitation to disaster. Anywhere inside the Chicago area is much like I-10 or the Atlanta area. But I would expect that I-10 in the more rural areas is no different than I-80 up here. It has two lanes. In fact I noticed just the other day going down I-39 one of those over the Interstate electric signs that says in alternating fashion: 
 

PASS IN THE LEFT LANE...….DRIVE IN THE RIGHT LANE...…...IT'S THE LAW

 

Yet when I look down the road they are two abreast and one hundred and fifty deep. There is another sign on another section of state divided four lane than says: 
 

DRIVING IS FRUSTRATING ENOUGH...….LET THEM IN

 
The point of law is to make order from chaos. A speed limit is the posted maximum but doing it isn't not the law (required). Some roads in some states will have a posted minimum and some states like Illinois don't have a minimum. Those two signs above if followed would make it work for everyone no matter what their speed smooth as silk but.....
 
How I handle it? I hate the hornets nest so bad I will drive 50 miles around Chicago to avoid going through it. Nashville and Atlanta I do in the middle of the night. In the rural sections of this country I get right and drive somewhere between the min and max and let others decide what laws they wish to break and what risk they are willing to take. My 15 under is no more dangerous than their 15 over. If it gets totally stupid I find a parallel state or county road or simply take a break until the rats have finished their race. There's an APP for that...WAZE.
 
People will ignore laws that are intended to provide fluid flow of traffic for all disciplines of speed to the point that traffic comes to a complete stop. I pushed my Harley through Nashville for two hours once hitting RUSH hour on a 100 degree day. That was fast and my education to the drive around. Driving around cities will often get you there hours ahead of the rats nest grid locked ignorance of humans. Out in the open......I feel no compunction to joint the lawless and dangerous.
 
 
 
 

I’ve seen the keep to the right law starting to get in forced a few places . Mainly to prevent road rage. Minimum speed is 40 still on I-10. Unfortunately my trips east are usually 3, 7 hr days of driving. My average speed is low cause of the wife’s usually 1 hour stops. The keeps me a about 72 MPH. At 7 hours now days my concentration starts to wane.


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[Sierra Dan]

3 hours ago, Grumpy Bear said:

1.) 55 M6 cruise control set over the twenty mile loop (3.23 gear). 30.4 mpg

2.) Same speed in M5 simulating a 4.10 on the open road.  26.6 mpg This disables the AFM. 

3.) Get up to 55 in M5, Engage the tow mode then shift up to M6. This hold the box in 5th gear but allows the AFM normal operation. 29.2 mpg. (still it was only spinning a bit over 1700 rpm...loafing) 

I would be curious to see the same test with a 3.42 rear.

[Grumpy Bear]

If your willing by buy me a 3.42 gear set I'll test it for you!   

 

9 hours ago, Sierra Dan said:

I would be curious to see the same test with a 3.42 rear.

 

[Sierra Dan]

3 minutes ago, Grumpy Bear said:

If your willing by buy me a 3.42 gear set I'll test it for you!   

 

 

Aahhh, not so fast grasshopper! Lol

I have a 3.42

 

[Grumpy Bear]

8 minutes ago, Sierra Dan said:

Aahhh, not so fast grasshopper! Lol

I have a 3.42

 

Rats!!!!!!!!!!!!!!!!!!!!! 

[Sierra Dan]

You cheated Marty!

The numbers you posted are from a V6

I wonder what numbers would show with the 5.3 and 3.42 

Let me guess.....if i buy you a 5.3 also youmwill gladly test? 

[Grumpy Bear]

10 hours ago, Sierra Dan said:

You cheated Marty!

The numbers you posted are from a V6

I wonder what numbers would show with the 5.3 and 3.42 

Let me guess.....if i buy you a 5.3 also youmwill gladly test? 

Maybe 

 

As I noted early on Dan the exactness of number was not the goal for that experiment. I wanted to know IF the AFM were active how much of the gearing increase in rpm disadvantage could be offset. As it turned out not enough  but it did take a big bite out of the taller gear. Maybe break even is 3.42 or even 3.73? 

 

As far as my itty bitty motor.....Yea.....I'll keep her. Did you guys (in general) ever consider that when in the V4 mode those with a 4.3 have a larger motor displacement?  

 

That said and as you have the equipment already...have at and share brother!! 

[Sierra Dan]

All good Marty.

Everyone should enjoy what they drive no matter what it is!

[Grumpy Bear]

1 hour ago, Sierra Dan said:

All good Marty.

Everyone should enjoy what they drive no matter what it is!

No-no-no Dan. I mean I'm am genuinely interested in that experiment and want to know.....

 

Didn't mean to sound flippant. Apologies if you took it that way. 

[Sierra Dan]

No apologies needed! 

When I first read your results I assumed you had the 5.3 and did not put 2 and 2 together.

I was wondering how in the heck you were getting in the neighborhood of 26mpg on your tests.

On a great day I may average 18 or so with my combo.

I have never seen any better than 22 on the highway and about 18.5 around town if I barely get into it and try keeping in V4.

So far my average lifetime is about 16.8mpg

 

[Brummie99]

Last week I had to make the same 500 mile round trip twice. The first time was with the Range AFM disabler installed, the second without. I was hoping to get a direct comparison but differing traffic conditions hampered that.

 

Nevertheless on the first trip, according to the DIC (400 mile average) I made 22.0 mpg. On the second trip (Friday) there was a LOT more holiday traffic plus ran into a few rain storms which both resulted in a lower average speed than the prior trip. Trip 2 averaged 22.9mpg.

 

For most of the time on the interstate I would try to keep it between 70 & 75mph. According to OnStar the first trip averaged 63mph the second 61mph.

 

5.3 with 3.42

[CadillacLuke24]

On 9/4/2018 at 6:18 AM, KARNUT said:

My question is how do you get away with 55 in a 70? My Camry shines at 72 MPH with 33-35 MPG and drops pretty good higher. My truck would go as high as 24MPG at 60 MPH with out cylinder deactivation going up HWY 17 at the speed limit. If try that on interstate 10 from Texas to the east coast they’d play bumper cars with me.


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It is Wyoming . Seriously, a traffic jam is being second at the light. On days like Wednesday, where I'm covering state highways WELL off the beaten path, I'm the only one around for hours on end. Lots of times I can stop at the stop sign, check my phone, respond to texts, pop a CD out of the center console and into the CD player, and still be alone when I go to leave. 

 

Most people just fly by me, even when I'm going the speed limit. 

[Grumpy Bear]

7 hours ago, CadillacLuke24 said:

It is Wyoming . Seriously, a traffic jam is being second at the light. On days like Wednesday, where I'm covering state highways WELL off the beaten path, I'm the only one around for hours on end. Lots of times I can stop at the stop sign, check my phone, respond to texts, pop a CD out of the center console and into the CD player, and still be alone when I go to leave. 

 

Most people just fly by me, even when I'm going the speed limit. 

People that speed use to say speed limits were only suggestions. Now they have advanced in thought and they're just flat ignored.

 

Truth is when people as a rule, ran three to five over I went along with the crowd. But when you can be doing twenty over and are still the slowest thing on the road, what's the point?  The safety argument the speeders themselves tossed under the buss. 

 

Any wonder that the AFM doesn't engage? That locking it out has no effect on mileage? 

 

I crossed Eastern Wyoming a few decades ago on a bike and got hit by a freakish hail storm. Talk about no place to run, no place to hide and it just won't stop!! Tuck in tight and run fast enough to let the bike take the stones was my only defense. Ouch!!! Leaned to appreciate the 'batwing' style faring. Not a tree, not an overpass and not a building in site.