Visconti Tuning Stage 1 Tester #3 (I think)

[bimmerboy]

just curious as to why people are so obsessed with increasing their gas mileage from a tune?? These cars already get pretty good gas mileage stock... I thought this was a sports car, we need more reviews on the increase in power!

I feel like i'm on a toyota prius forum or something.

[lopro25]

^agreed. Car gets great mpg stock and if tune increases that then that's a great bi-product. However I'm spending the money on the power not the mileage.

Sent from HTC Thunderbolt using Tapatalk

[brichard0625]

Originally Posted by ruskymx

My GoPoint BT1 came in and got it set up. Accidentally caused a CEL by plugging the adapter improperly. Code U0073. Ooops! Out for a drive and some data logging.

EDIT: I guess I should've read the directions first. I didn't get the data logging right and it didn't save anything. Going to go out for a drive now to see if I got it right.

Thats crazy you say that..cuz that same code came up for me today too. I think the plug sticks out too much and everytime my leg hits it and comes out just a little. Looking forward to seeing your results. Tell me how that app works out curious to how it is

[ruskymx]

Originally Posted by bimmerboy

just curious as to why people are so obsessed with increasing their gas mileage from a tune?? These cars already get pretty good gas mileage stock... I thought this was a sports car, we need more reviews on the increase in power!

I feel like i'm on a toyota prius forum or something.

Originally Posted by lopro25

^agreed. Car gets great mpg stock and if tune increases that then that's a great bi-product. However I'm spending the money on the power not the mileage.

Sent from HTC Thunderbolt using Tapatalk

The power gains are documented here. From the dynos on that post, it looks like 17.33 peak hp. There is also a gain of around 10lb-ft in the torque dip. The last chart shows the "free" power from the extra 400rpm of redline. The reason for my thread here and brichard0625's thread is to log and track fuel mileage. The dyno proves the power gain, the only way to prove the MPG gain is to log miles and data. Hence, these threads.

My Fuelly account (link in sig) has my prior 3 tanks to the tune. The 4th tank has 117 miles of no tune and the other 225 miles with the tune. It does have about 100-150 miles more of highway miles than I would normally drive. FWIW, my trip computer showed 34.3 when I got back from the tune. I may have "tested" () the new redline a few times before I needed to fill up. The trip computer dropped to 30.5 and my actual mileage from the math was 30.78 which is the number that is important. This number represents and increase of about 4mpg compared to my last tank and 2.9mpg compared to my previous best as I tracked on Fuelly. NOTE: I didn't start tracking on Fuelly until recently. My first few tanks were random gas stations. All of the tanks tracked on Fuelly are from Shell V-power 93 Octane.

Originally Posted by brichard0625

Thats crazy you say that..cuz that same code came up for me today too. I think the plug sticks out too much and everytime my leg hits it and comes out just a little. Looking forward to seeing your results. Tell me how that app works out curious to how it is

This program can collect sooooo much data that my head is spinning....lol I'm going to message John and see what info he wants me to log, because if I log everything possible, the file would be HUGE! An 8:08 drive creates a 3MB file and about 5400 lines in an Excel spreadsheet and that is only 9 of the parameters of which there are hundreds!



I haven't necessarily been putzing around either... I have about 364rpm more and 2mph before the rev limiter

Ruskymx

[Coheed]

I love how there is someone who actually cares about MPG. With the gas money you save, you can use it for mods

[Hawaiian]

Originally Posted by Coheed

I love how there is someone who actually cares about MPG. With the gas money you save, you can use it for mods

No kidding. I drive 70m each day on my work commute (not counting errands). Just a quick bit of math.

70*5 (work days)*52(weeks per year)/29 (current mixed mpg) = 628 gallons a year

vs

70*5*52/34(reported mixed driving) = 535 gallons a year

At the pump it was $4.30 for a fillup. That saves me about $400 a year. It looks like the tune pays its self off after 2 years of work commutes.

[ruskymx]

Ok, looking for some feedback as to what data to log. There is so much info that Dash Command can log that it makes ridiculously large files that are really not needed. There's a feature that's called persitent PID's and I'm turning that off so I can select the items to log. It should help reduce the size of the file. I think the rest of this tank will be used to get a feel for how the app works and by the next tank, I hope to have it down so I can log accurate info.

Here are the parameters I was thinking of logging:

Avg Speed, Max Speed
Avg RPM, Min RPM, MAX RPM,
Intake Temp - Min Max Avg
Ambient Temp - Min Max Avg
AFR - Min Max Avg
Elapsed time of drive
Altitude - Min Max Avg

There's a bit of a learning curve with this app. The user manual just covers the very basics.

Here's some screens the default skin.

This is from a very short drive across the highway to grab lunch.


Here's the ambient temo sitting at a red light

Here's the intake air temp at the same redlight just seconds apart.

Here's just a short trip for lunch:



Ruskymx

[brichard0625]

Wow that app def does more than the andriod app. I have some of those parameters but not all.. I like how it shows percentage of what gear u were in thats really nice! Damn now i want this app lmao

[industrial]

Originally Posted by bimmerboy

just curious as to why people are so obsessed with increasing their gas mileage from a tune?? These cars already get pretty good gas mileage stock... I thought this was a sports car, we need more reviews on the increase in power!

I feel like i'm on a toyota prius forum or something.

I had the same thought. I wouldn't mind having a gas mileage map if we can switch out maps but I'd prefer moar powah over mpg.

[SkAsphalt]

42 dollars to fill eh? I did the math..should cost me about 72 dollars to fill the car in canada.. YAY premium. I am paying in the 50's to fill my corolla

[fenton]

Feel your pain. Although not as bad as BC or SK I pay 55 to 60 for 94oct

Sent from my Galaxy Nexus using Tapatalk 2

[bimmerboy]

i feel bad for the fr-s and brz's that are out there trying to maximize fuel efficiency.... for fucks sake drive the car like it was meant to be driven!!!

But to each their own, I can't hate the tune, as it gives more power and better gas mileage. a win-win

[ruskymx]

I think I decided how I am going to track the data. I took screen shots of the app running on the way home from work tonight. I'm driving it like I normally do and I'm not trying to drive more efficiently. I still rips through the gears every now and then like I usually do.









The time and distance in Neutral is from coasting down a hill that I have to and from work. I always costed down in it N before the tune and will continue to do so during the testing as well.



This last pic will show the range of temps and altitude.


I'll reset the stats each time I fill up and track this data per tank full instead of each drive individually. If I would post each drive, there would be a lot of short trips for lunch etc at work that would be very tedious to post this every single time and would clog up the thread.

Ruskymx

[ruskymx]

My gas light came on today and I stopped and filled up. This tank had a good bit of aggressive driving, partly because I may have overslept a few times and had to hustle in the morning, which also made it a more fun drive to work as well. Top speed of 85mph recorded and MAX RPM over 7k so I definitely wasn't babying it this tank.

The trip meter showed 285.5 miles driven and it took 10.659 gallons for an average MPG of 26.78. The tank can be best compared to my 2nd and 3rd tanks recorded in Fuelly which were 25.18 and 25.96 respectively. Those were the two tanks that had more aggressive driving patterns. So it was still an improvement.



I was able to only log the last 124.7 miles of this tank due to the timing of my OBD II adapter coming in as well as the learning curve of the app. I lost about another 80-100 miles of data.



Here you can see the avg RPM and the Max RPM.



Here you can see the distance that I traveled in each gear. Disregard the MPG numbers here because they are not accurate. The number on the dash was 28.3, here shows 28.8 and the actual listed above was 26.78.



Here you can see the amount of time that I spent in each gear as well. A lot of time in neutral shows sitting at red lights or in traffic, etc.



Here you can see the altitude and barometric pressures.



I may be going to an Autocross this weekend so that will mess with the numbers a bit so what I am going to do is track it like normal and just fill up after the AutoX and monitor everything as usual again. I'm sure the tank with the autox will have terrible mileage readings.

The first tank that I tracked with Fuelly was my last tank during the break in period so most of that driving was sub-4k rpms. I actually never changed my RPM warning beep so it's still set at 4k. I'll try driving the next full tank similar to the break in period one and keep it under 4k. I'm sure I'll cheat a little but hopefully not too much.

Ruskymx