Baseline MPG. Charger RT.

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Originally Posted By: MrQuackers
My bad.


No problem. I'm hoping dermapaint will let me email it to him. I think I've seen him post pics before,although I may be mistaken
 
Another fill up. Miles are 2/3 highway 1/3 city roughly.
Miles driven 375
Fuel re-filled to full 16.35 gallons
22.9 mpg

I've gained at the minimum 3 mpg per tank since adding mos2 to the oil.
With a tailwind today the mpg meter went as high as 30mpg after filling up,on the drive home. Once I turned and it became a side wind it dropped to 26 and stayed there.
I'll keep tracking. It will pain me to cut open this filter at 3000 miles. Maybe I'll stretch it to 5000 which would be more indicative of an average drivers oil change interval and typical filter loading.
 
Clevy, what I seem to notice about my fuel economy gains are that they are most noticeable in steady state driving, like continuous freeway. In stop and go traffic, I think any frictional reduction gets lost in the noise of all that acceleration and deceleration and the vagaries of traffic flow. Whereas on the freeway, it really does become a matter of how efficiently the engine is running.

Is that your experience also?
 
Originally Posted By: Injured_Again
Clevy, what I seem to notice about my fuel economy gains are that they are most noticeable in steady state driving, like continuous freeway. In stop and go traffic, I think any frictional reduction gets lost in the noise of all that acceleration and deceleration and the vagaries of traffic flow. Whereas on the freeway, it really does become a matter of how efficiently the engine is running.

Is that your experience also?


City mileage really hasn't changed. The stop and go and wait and go and stop really isn't even trackable to be honest. Depending on road construction and whatnot there are just too many variables.
I drive mostly on the freeway to get to whatever neighbourhood,and I'm never in rush hour traffic. I'll work the extra hour for traffic to dissipate or go for a drink til the traffic is mostly gone.
I always drive this way though,and my first 3000 miles were tracked driving the same routes at the same times as now.
To answer I find the most noticeable improvements are on the highway,and my improving highway MPG's are very likely is what is bringing up the total average.
City MPG's are likely the same as before but my highway MPG's have improved so much that its bringing up the total average.
Is that making sense?
My idle has gone up to 720RPM whereas even yesterday it went from 600-630RPM. It has increased slightly. I'll see if anything changes tonight.
I can say my idle increased for a short time on all my prior vehicles but being obd-2 the idle eventually returned to stock within a few drive cycles.
 
Clevy, you're seeing what I'm seeing - that the gains are most easily seen when the engine is running in a steady state mode. The idle speed in my Miata hasn't changed at all so the engine management must be taking care of it. The much slower drop from blipping the throttle though, is very noticeable, so much so that I am consciously blipping the throttle less when downshifting, both because the engine revs up faster and then slows more slowly. It really helps to have the drivetrain act like it has a lot of inertia at these times, yet because it is a really tiny motor and has little inertia, also can change speeds quickly too.
 
I believe that while maintaining speed is when an engine will realize and the friction reduction will be most noticeable.
City miles and the constant state of no load/high load a person is more concerned with traffic then fuel efficiency,so just safe operation is in the minds forefront.
On the highway the pedal barely moves,so the reduction in friction will be more noticeable because there are less distractions. Basically its less resistance in turning the engine and any time resistance can be lessened less fuel is burned.

I'd love to have some form of scanner that monitors fuel delivery accurately to the millimetre.
Then just monitor the fuel consumption at idle,no load when hot. Add mos2 and after 1000 miles to insure adequate plating check fuel consumption at idle again. That would be evidence that the engine is less resistant in turning itself.
Went to the city and hot idle is 650-675 now. So the engine ecu is compensating trying to get idle back to original programming.
The fact that the idle rpm jumped basically overnight indicates to me significant friction reduction happened in the past few days. There was quite a few stop starts in the past few days and a few highway runs too that those conditions may have contributed to the plating effect and its now got enough layers to be effective. Just spitballing.
 
Clevy, there are a number of scanners that plug into the odb port and give you real-time readouts of engine operating parameters. Basically, anything that your car's programming allows to be access via the obd port can be displayed. So, injector pulse width, engine timing, all of that can be seen real-time.

They're a couple of hundred bucks, and I've never been interested enough to get one of these. It would be a much more definitive way of collecting actual data.
 
Originally Posted By: SteveSRT8
^^^There's another Diablo plug for ya, Clevy. It does all that!


I'm watching the dodge forums for one. They don't last long for sale though.
Too late to actually test now anyways.
But I sure would like to shut off traction control.
 
Photobucket has a nice iPhone app. That's how I put most of the pictures I link to BITOG up.

Of course they've "improved" it several times and it gets more convoluted instead of actually better... but its still very good.
 
Originally Posted By: Clevy
Originally Posted By: SteveSRT8
^^^There's another Diablo plug for ya, Clevy. It does all that!


I'm watching the dodge forums for one. They don't last long for sale though.
Too late to actually test now anyways.
But I sure would like to shut off traction control.


Actually the latest canned tunes (updates are free!) push the factory 'nannies' so far away you may never feel the nned to push the ESP button again!

In my car you go from an over controlled car that can't turn a tire to a decent rubber roasting takeoff when you want without any button pushing. Then you only push the button at the track. Pushes the threshold for stability control intervention way back, too.

Can you tell I like it?
 
Originally Posted By: SteveSRT8
Add to that many users experience a nice economy bump, too!


Economy bump? I can't imagine a V8 getting the mileage I am getting now. If that went higher I don't think I'd buy anything but an mds hemi ever again.

So I found a trinity last night and a predator for sale. 400 for the trinity and 2something for the predator. Which is the better value,as in does the trinity just add a bunch of options I'll never use.
Gears will be the next mod,after the tuner. 3.90s would make this car launch like a champ,if someone even makes that ratio for a dodge.
 
Read up on the trans. NAG1 has a ridiculously LOW first gear, 3.59 to one. You won't need gearing to launch, you'll need traction. Once you get the tuning right the launch will be monstrous. between torque management, traction control, and timing being pulled you have never even felt what that 5.7 can do from a stop.

Trinity loads the exact same tunes as a predator, just has more toys.
 
Originally Posted By: SteveSRT8
Read up on the trans. NAG1 has a ridiculously LOW first gear, 3.59 to one. You won't need gearing to launch, you'll need traction. Once you get the tuning right the launch will be monstrous. between torque management, traction control, and timing being pulled you have never even felt what that 5.7 can do from a stop.

Trinity loads the exact same tunes as a predator, just has more toys.



Your right. I pulled fuse 17 and drove around for a few days. Once the tires break loose its a smoke show til 3rd.
I might be looking at a challenger for a next car. These hemi's are something else. And the mds is just amazing. The fuel efficiency of a 6er with power of a hemi.
I couldn't be happier with a car.
 
And if anyone is wondering my idle has returned to normal.
Almost 1500 miles in and my average mpg has increased by at least 3 mpg.
I gotta admit I'm just driving normal. No jackrabbit starts or really mashing the pedal and I can't wait for this to be over so I can start mashing the pedal.
The baseline run I was being as easy on the pedal as I could,then after adding mos2 I played a bit in the first couple hundred miles but have been sedate since.
I didn't realize these things are faster than a 3v 4.6 mustang. I handed one his rear on the highway trying to pass. He floors it as I'm going by,so I floor it. It was as if he was standing still. My 4v isn't that slow.
I'm a mustanger but I really gotta say that these hemi's are something else.
They aren't a 5.0 but they are definitely something.
 
you have a very large advantage in CID and are putting out, off the top of my head, what, 130 hp more than him---? what would you expect?

disclaimer: I like neither Fords nor ChryCo prods, but am very interested in your experiment. Please continue to keep us updated
 
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