Integrated Engineering Stage 1 MPGs

[imthecleanup]

Can anybody with the IE Stage 1 inform me on what the gas mileage is looking like before and after the tune? Was hoping this would get me a few mpg's so it would pay for itself. thanks

[flowhigh]

It's misleading that a tune is going to give you better mpg, that's mkting hype. It's going to be a feeble attempt if you try.

Side note and serious question, is that you in the picture. Are you one of those people that dress in animal cartoon costumes and roam around the malls and what not?

[imthecleanup]

When I got a tune for my Pontiac G6 I gained about 3 MPGs and that’s not me but yes.

[flowhigh]

Oh okay, cool rock on. I definitely feel like I'm going to the pump more since 1 and 2

[Wizard0fTheH00D]

Mpg depends totally on you. It will give you better gas mileage as long as you drive it like a nice daily driver. Not a lot maybe 3-4 added mpg. I've now gone on to stage 2. Even with me doing some extra spirited driving I haven't lost any mpg. Last trip I took with all highway driving I was averaging 31 mpg. That's based off of miles driving and how much I put in the tank. On a regular schedule I average between 24-26 mpg. But I hazard to guess you will lose mpg your first week or so as your right foot will be happy and enjoying the tune.

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[f1torrents]

If you can ADD power and DECREASE MPG, the engineers at Audi would have done this from the factory.
Millions are spent on calibrating these ECU's from the factory level.
A small tuning company in comparison to VAG is not finding some magic sauce.

[Nano909]

Another boring mpg tune thread *yawn*

[Spawne32]

Have you ever owned a car with a turbocharger before?

[imthecleanup]

No, the A4 is my second car and my previous was a 2006 Pontiac G6 3.5L v6

[Spawne32]

No, the A4 is my second car and my previous was a 2006 Pontiac G6 3.5L v6

Any time you turn the boost up on a turbocharged car, it uses more fuel to run. MPG gets progressively worse as you increase boost, IE stage 1, stage 2, and stage 3 (K04 turbo upgrade). Boost comes on sooner with the tunes, ignition timing is increased, and additional modifications allow the car to take in more air, subsequently needing more fuel. The only thing that may improve MPG is if you don't push as hard on the pedal to get up to speed, and most tunes, good ones at least, will run slightly leaner in boost compared to a stock tune to utilize more power, but all of this is usually over shadowed by boost increases.

[imthecleanup]

Thanks for explaining

[flowhigh]

[QUOTE=Spawne32;14498839, and most tunes, good ones at least, will run slightly leaner in boost compared to a stock tune to utilize more power.[/QUOTE]
This would have negative consequences during higher rpms and on a consistent basis, no?

[Spawne32]

This would have negative consequences during higher rpms and on a consistent basis, no?

On mpg yes, on power output, no.

[Theiceman]

I don't think any tune pays for itself... The performance gains are addictive and have you heavy on the throttle.
Mpg drops significantly as you get heavy on the throttle

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[flowhigh]

I don't think any tune pays for itself... The performance gains are addictive and have you heavy on the throttle.
Mpg drops significantly as you get heavy on the throttle

Sent from my SM-G973W using Audizine Forum mobile app

you don't get tuned for mpg

[Wizard0fTheH00D]

you don't get tuned for mpg

This is accurate. If your really worried about your mpg don't tune

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[flowhigh]

On mpg yes, on power output, no.

I thought stochiometric ratio was 14.7:1 was the desired on any properly running car even one tuned regardless of where the engine is revving. Not to get too technical.

[wilmar13]

I thought stochiometric ratio was 14.7:1 was the desired on any properly running car even one tuned regardless of where the engine is revving. Not to get too technical.

That is one variable, out of many. How much power do you want to make? Do you want to keep the piston from melting? How about preventing detonation? What about emissions? Oh you want fuel efficiency too?

If fuel efficiency was all that mattered, we would run super lean compression ignition (no spark plugs) engines on gasoline and toxic emissions would sky rocket (CO2 is not a pollutant, it is a control scheme). 14.7 is a nice balance point. You go richer than that to make more power... the richer mixture is not making more power, but its more that adding fuel allows you to have a safety buffer for the things that do (higher compression, advance ignition timing, greater boost, valve timing/duration, etc). The richer AFR prevents detonation and keeps things running cooler. You are using the fuel as a coolant really.

[flowhigh]

That is one variable, out of many. How much power do you want to make? Do you want to keep the piston from melting? How about preventing detonation? What about emissions? Oh you want fuel efficiency too?

If fuel efficiency was all that mattered, we would run super lean compression ignition (no spark plugs) engines on gasoline and toxic emissions would sky rocket (CO2 is not a pollutant, it is a control scheme). 14.7 is a nice balance point. You go richer than that to make more power... the richer mixture is not making more power, but its more that adding fuel allows you to have a safety buffer for the things that do (higher compression, advance ignition timing, greater boost, valve timing/duration, etc). The richer AFR prevents detonation and keeps things running cooler. You are using the fuel as a coolant really.

I think you're misunderstanding what I'm asking.

It was a question for spawn inline with going leaner during boost on the better tunes. I wanted to get insight on that since I don't map.

Original poster, sorry for taking things a bit away from your original question.

[wilmar13]

I think you're misunderstanding what I'm asking.

It was a question for spawn inline with going leaner during boost on the better tunes. I wanted to get insight on that since I don't map.

Original poster, sorry for taking things a bit away from your original question.

Oh, sorry... going leaner (when you are rich) makes more power... and part of how the tunes make more power is reducing the safety buffers, not just in advancing timing and increasing boost, but also in leaning AFR...like instead of 12:1 under boost it may be targeting 13:1. Its not going to be leaning it past 14.7:1(intentionally), but that really only occurs when not making positive charge pressure. If you log your O2 sensor, it goes very rich, even just on the highway at 2k rpm every time there is slight hill, or anytime engine intake goes from running vacuum to positive pressure, not just WOT.

[Spawne32]

I thought stochiometric ratio was 14.7:1 was the desired on any properly running car even one tuned regardless of where the engine is revving. Not to get too technical.

No, direct injection cars do not even run 14.7:1 at idle, they actually run something a little leaner, closer to 15:1 and newer cars even higher, although this has more to do with emissions than anything. When you are on the gas your air/fuel ratio changes depending on load, at high loads, a stock car can be as rich as 11.5:1 under boost. Most tunes will lean the car out slightly for better power output. But this numbers are different depending on your individual setup, the reason you don't run stoich throughout the entire power band is to prevent detonation. Too lean under boost, and you can cause severe engine damage. These numbers have changed over the years, direct injection vehicles can run much leaner under boost and WOT compared to a port injection car, because of how the fuel is injected, and the pressures it operates at. In a nutshell though, more boost, more fuel needed to achieve the correct AFR, depending on how you are tuned.

[Spawne32]

I think you're misunderstanding what I'm asking.

It was a question for spawn inline with going leaner during boost on the better tunes. I wanted to get insight on that since I don't map.

Original poster, sorry for taking things a bit away from your original question.

It's about refining the tune to make it safe. Generally speaking from the factory, they run them richer under boost for safety reasons. Variations in fuel quality, environmental conditions, etc. Tuning generally runs cars closer to the edge, so different manufacturers shoot for different results when it comes to AFR and ignition timing.

[flowhigh]

No, direct injection cars do not even run 14.7:1 at idle, they actually run something a little leaner, closer to 15:1 and newer cars even higher, although this has more to do with emissions than anything. When you are on the gas your air/fuel ratio changes depending on load, at high loads, a stock car can be as rich as 11.5:1 under boost. Most tunes will lean the car out slightly for better power output. But this numbers are different depending on your individual setup, the reason you don't run stoich throughout the entire power band is to prevent detonation. Too lean under boost, and you can cause severe engine damage. These numbers have changed over the years, direct injection vehicles can run much leaner under boost and WOT compared to a port injection car, because of how the fuel is injected, and the pressures it operates at. In a nutshell though, more boost, more fuel needed to achieve the correct AFR, depending on how you are tuned.

Okay, good info. I have noticed a bit more elevation in enrichment for my ltft(non-idle)from stage 1 to 2.

[imthecleanup]

(CO2 is not a pollutant, it is a control scheme).

Based.

[Nick27]

Anyone experiencing a lack of power/not as aggressive on stage1 ? On my b8.5 I slam it in manual mode and the power isn’t as aggressive…no codes or errors though…

[flowhigh]

Anyone experiencing a lack of power/not as aggressive on stage1 ? On my b8.5 I slam it in manual mode and the power isn’t as aggressive…no codes or errors though…

Newly tuned? Ie stage 1 everything else stock?

[Nick27]

Newly tuned? Ie stage 1 everything else stock?

correct

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well ive had the tune about a year but everything is stock car isn't driven much maybe 1-2 days a week.