[BM3Rrrr]

Originally Posted by TheMidnightNarwhal

I'll try the E85. I'm not looking something to daily tbh more for drag run and a one time thing.

Originally Posted by TheMidnightNarwhal

Oh yeah for sure, I wasn't meaning to test it at the drag. It's mainly why I wanted to start with a smaller quantity of E30 mix.

My performance mods are 7" FMIC HD VRSF, VRSF catless DPs, BMS DCI, second cat delete.

Let's say the pump can't handle it, is it ok to revert back to stage2+ and I can run the remaining of the fuel or it won't be good either?

Ok thanks I'll reset lambda when I switch..

Your posts confuse me...… shanker604 is right though you are way over complicating things here.

[TheMidnightNarwhal]

Originally Posted by BM3Rrrr

Your posts confuse me...… shanker604 is right though you are way over complicating things here.

Sorry, I meant that I do want E85 just for dragging.

But I will test it on the street before going to the drag.

[JM98]

The MHD V5 E40 tune has literally been the most powerful and least problematic tune I've run on my car. I've gone 11.8 on it and daily driven for 2+ yrs without issue.

[TheMidnightNarwhal]

Originally Posted by JM98

The MHD V5 E40 tune has literally been the most powerful and least problematic tune I've run on my car. I've gone 11.8 on it and daily driven for 2+ yrs without issue.

11.8! Holy shit. Were you AWD?

[TheMidnightNarwhal]

Originally Posted by type-dRew

My car hasn't complained aside from one coil with up to E50 mapping on new stock OE bosch plugs.

Going to try RSLs idea of new S55 plugs eventually.

Hey another quick question. I've been asked this question but TBH I wasn't sure what to asnwer.

People are asking me don't I have to change like fuel lines and all that to run ethanol since it's more corrosive? I suppose our cars stock are ok to handle ethanol stock?

[hellokitty]

Originally Posted by TheMidnightNarwhal

Hey another quick question. I've been asked this question but TBH I wasn't sure what to asnwer.

People are asking me don't I have to change like fuel lines and all that to run ethanol since it's more corrosive? I suppose our cars stock are ok to handle ethanol stock?

Depends on Ethanol percentage. MHD recommends at least an in-line pump for E30 if I recall correctly.

[IllSic_Design]

The stock fuel line is a type of plastic, not sure whether it can withstand regular Ethanol use or not. Fuel-it recommends upgrading to an E85 approved fuel line which is what I run in conjunction with an ethanol sensor.

[hellokitty]

Originally Posted by IllSic_Design

The stock fuel line is a type of plastic, not sure whether it can withstand regular Ethanol use or not. Fuel-it recommends upgrading to an E85 approved fuel line which is what I run in conjunction with an ethanol sensor.

The stock fuel line is a joke compared to E85 approved solutions haha... it looks and feels like a drinking straw.

[TheMidnightNarwhal]

Originally Posted by hellokitty

Depends on Ethanol percentage. MHD recommends at least an in-line pump for E30 if I recall correctly.

MHD only states a upgraded pump for E50 map.

Originally Posted by IllSic_Design

The stock fuel line is a type of plastic, not sure whether it can withstand regular Ethanol use or not. Fuel-it recommends upgrading to an E85 approved fuel line which is what I run in conjunction with an ethanol sensor.

Yeah I suppose a few times a year won't do that much harm.

Originally Posted by TheMidnightNarwhal

Also how well will fuel mix in the tank if you put ethanol not first or first?

Is that something to worry about?

No; please don't pay attention to bozos who tell you otherwise.

Originally Posted by TheMidnightNarwhal

So any way to know for sure how much gas in the tank?

Might have been an option on your model year, but on my car I have a fuel gauge in the lower left corner of the gauge cluster. Using elementary school math lets you know that each hash mark within said gauge = 0.8 gallons.

Originally Posted by TheMidnightNarwhal

People are asking me don't I have to change like fuel lines and all that to run ethanol since it's more corrosive? I suppose our cars stock are ok to handle ethanol stock?

If you're gonna listen to "car people" at least make sure they have some knowledge of what the N54 is and what it's capable of, etc. You can also just search it out yourself.

[Sgop335]

About time w the bs questions and spoon feeding

[TheMidnightNarwhal]

Originally Posted by Sgop335

About time w the bs questions and spoon feeding

What do you mean?

[TheMidnightNarwhal]

Originally Posted by FCobra94

If you're gonna listen to "car people" at least make sure they have some knowledge of what the N54 is and what it's capable of, etc. You can also just search it out yourself.

I agree but it's still a good point. And from searching I honestly can't find conclusive info. No one mentioned me iin this thead to upgrade components apart from LPFP here so I believe I'm good to go. But searching says otherwise, but taht is considering that the info is coming from the seller/manufacture of upgrade products lol. So clearly a bias.

For the fuel gauge technically that might not be right... when the tank is full the needle stays above the top mark for longer than other levels.

[JM98]

Originally Posted by TheMidnightNarwhal

11.8! Holy shit. Were you AWD?

Rwd 135i Auto, FBO and Walbro 450

[hellokitty]

Originally Posted by TheMidnightNarwhal

MHD only states a upgraded pump for E50 map.

Yeah I suppose a few times a year won't do that much harm.

Sounds about right. Just monitor LPFP PSI for any dips below 50.

[type-dRew]

If this is going to be this much trouble, I really think a $300 fuel pump upgrade is worth while.

That way at the track you aren't limiting yourself to E30/E40. Get a fuel pump and run E60 map to really make a difference.

Don't get me wrong, E30 is better than 93. But for all the effort involved, may as well have an ace up your sleeve and make it worth the effort.

I only picked up .4 and 4mph going from 93 to E40 map(not saying thats a bad upgrade, but theres a lot on the table still imo). A low side upgrade will afford me more aggressive maps and make ethanol blending much more worth my time.

And you sound like you don't want to invest anything in it, but a custom tune for both 93 and E60 would really tie this all together. OTS maps can only do so much.

[hellokitty]

Originally Posted by type-dRew

If this is going to be this much trouble, I really think a $300 fuel pump upgrade is worth while.

That way at the track you aren't limiting yourself to E30/E40. Get a fuel pump and run E60 map to really make a difference.

Don't get me wrong, E30 is better than 93. But for all the effort involved, may as well have an ace up your sleeve and make it worth the effort.

I only picked up .4 and 4mph going from 93 to E40 map(not saying thats a bad upgrade, but theres a lot on the table still imo). A low side upgrade will afford me more aggressive maps and make ethanol blending much more worth my time.

And you sound like you don't want to invest anything in it, but a custom tune for both 93 and E60 would really tie this all together. OTS maps can only do so much.

Inlets too, don't forget about inlets

[TheMidnightNarwhal]

I've personally said to myself I was stopping with performance expenses after inter cooler so haha. Will be staying with pre-made maps and run E30 at the drag just for fun and see.

[mweisdorfer]

From the videos and other writings I've seen, you literally take the amount of gas you plan on putting into the tank & x by .25, .40 or .60 to get a number of gallons you put into an empty tank with e85.

So, for example you planned on using .25 at the track and wanted a full tank of gas. If you had a car running on fumes, you'd use 15 gallons and x .25.

So, the first 3.75 gallons would be e85. The rest would be 93 octane.

Most people who track their cars and use e85, probably have an upgrades LPFP.

[type-dRew]

Originally Posted by mweisdorfer

From the videos and other writings I've seen, you literally take the amount of gas you plan on putting into the tank & x by .25, .40 or .60 to get a number of gallons you put into an empty tank with e85.

So, for example you planned on using .25 at the track and wanted a full tank of gas. If you had a car running on fumes, you'd use 15 gallons and x .25.

So, the first 3.75 gallons would be e85. The rest would be 93 octane.

Most people who track their cars and use e85, probably have an upgrades LPFP.

Thats not the worst equation, but if you used that you would only be getting E25ish, assuming the E85 was exactly 85%. Id much rather go over ethanol content than under.

Just use this calculator. no reason to guess;

http://www.georgebelton.com/E85Calculator.php

I always try and overshoot 5% to compensate for E85 quality variables and let fuel trims handle the compensation.

@Fcobra94 was dead on with the .8/gal per hash mark, I just used that last night and only missed by .1

[TheMidnightNarwhal]

Originally Posted by type-dRew

Thats not the worst equation, but if you used that you would only be getting E25ish, assuming the E85 was exactly 85%. Id much rather go over ethanol content than under.

Just use this calculator. no reason to guess;

http://www.georgebelton.com/E85Calculator.php

I always try and overshoot 5% to compensate for E85 quality variables and let fuel trims handle the compensation.

@Fcobra94 was dead on with the .8/gal per hash mark, I just used that last night and only missed by .1

Damn ok, my math might checks out wrong then haha. If it's accurate then I can probably do half tanks of accurate enough E30 mix. I'll just use weight to mesure 10L from the gas can. Would leave me more for next times!

And yeah that calculator is pretty great!

[type-dRew]

Originally Posted by TheMidnightNarwhal

Damn ok, my math might checks out wrong then haha. If it's accurate then I can probably do half tanks of accurate enough E30 mix. I'll just use weight to mesure 10L from the gas can. Would leave me more for next times!

And yeah that calculator is pretty great!

In my experience, I dont get peak performance with my tune until after a few WOT pulls, key cycles and at least some drive time.

Wouldn't be the worst idea to just fill up with the blend completely, burn off some with your commute and let it learn while doing some pulls and then hit the track. I know how much gas I use every day, you could spec it so youd be between 1/2 and 1/4 when you were doing your drag runs and bring a can with you to top off if you use too much(get a lot of runs).

Optional obviously, but makes filling up easy and also gives the DME some learn time