Delicious Tuning Q & A - FlexFuel BlueTooth Kits for EcuTeK ProECU RaceROM

[DeliciousTuning]

Originally Posted by enivid

Is it possible to get a custom tune where it stops advancing timing at a certain ethanol content? So E85 would produce the same whp as E40 if the timing stopped at E40?

Sure thing! I'm curious what the reasoning is, if you wouldn't mind sharing.

Sincerely,

Zach
Delicious Tuning

[enivid]

Originally Posted by sales@delicioustuning.com

Sure thing! I'm curious what the reasoning is, if you wouldn't mind sharing.

Sincerely,

Zach
Delicious Tuning

Maximizing power/weight ratio for given race class. Full E85 would put me over, straight regular gas would put me under but a mix could get me to where I need to be. But then you could accidentally mix too much ethanol and cheat but the tune would protect you from that. Does that sound legit or a dumb thing to do?

[CSG Mike]

Originally Posted by enivid

Maximizing power/weight ratio for given race class. Full E85 would put me over, straight regular gas would put me under but a mix could get me to where I need to be. But then you could accidentally mix too much ethanol and cheat but the tune would protect you from that. Does that sound legit or a dumb thing to do?

If they test fuel, you're in trouble either way

[DeliciousTuning]

Originally Posted by enivid

Maximizing power/weight ratio for given race class. Full E85 would put me over, straight regular gas would put me under but a mix could get me to where I need to be. But then you could accidentally mix too much ethanol and cheat but the tune would protect you from that. Does that sound legit or a dumb thing to do?

I suppose you could do that. Fueling would still compensate completely up to 100%, but timing addition would be capped at 40% like you requested. I guess what matters most is the power you're aiming for, and at what ethanol content you achieve that.

Sincerely,

Zach
Delicious Tuning

[DeliciousTuning]

Originally Posted by CSG Mike

If they test fuel, you're in trouble either way

Most race classes allow at least 10%, if not 15% ethanol. Gotta be able to allow the guys that are rolling in off the streets with their ethanol enriched pump gas

Sincerely,

Zach
Delicious Tuning

[enivid]

Originally Posted by CSG Mike

If they test fuel, you're in trouble either way

Well its just nasa tt so I can run whatever.

[enivid]

Originally Posted by sales@delicioustuning.com

I suppose you could do that. Fueling would still compensate completely up to 100%, but timing addition would be capped at 40% like you requested. I guess what matters most is the power you're aiming for, and at what ethanol content you achieve that.

Sincerely,

Zach
Delicious Tuning

Yeah just a thought. Maybe running the C38 with the HBP and blow off everything above 12 psi would increase the whp a bit.

[DeliciousTuning]

Originally Posted by enivid

Yeah just a thought. Maybe running the C38 with the HBP and blow off everything above 12 psi would increase the whp a bit.

That's certainly one way to do it.

-Zach

[2broke4turbo]

if i get the flex fuel kit and down the road I decide to go FI, would I be able to retain the kit?

[DeliciousTuning]

Originally Posted by 2broke4turbo

if i get the flex fuel kit and down the road I decide to go FI, would I be able to retain the kit?

Absolutely; the Flex Fuel kit is cross compatible with both NA and FI platforms.

Sincerely,

Zach
Delicious Tuning

[brzaapi]

Well, i went out and picked up a cheapy Android device. Its nice to have actually, since i can use it as an MFD. I dont have any gauges yet, so the tablet works well and i can monitor all pertinent information from the OBDII.

But, I also decided to check out my ethanol content. Surprise Surpirse, the E85 from the new station by my house shows about E50 on the analyzer app. Damn. Hopefully the station by my work has higher E content. I wasnt exactly worried about the content, but now that i can check...I am on the hunt for quality fuel. So thank you Delicious for adding that feature. Its nice to have as much information as possible. The Station i went to is reputable, which goes to show you never know about your fuel.

Anyways, love the kit. Simple install. I will be adding my ACE header/Op/FP next month, and finally get rid of that damn torque dip.

[brzaapi]

Zach,

Just curious, is there any concerns at all with running E100 with the flex fuel kit on the BRZ that you all have seen. Since I am finding it hard to find ethanol content higher than E60 right now, I thought i would blend some E100 in (from the same station) to raise my content. But then of course I couldnt help but think....well if E85 is good then surely E100 is better.

However, i would rather hear your thoughts. Or anyone who has something to add.

Originally Posted by sales@delicioustuning.com

Absolutely; the Flex Fuel kit is cross compatible with both NA and FI platforms.

Sincerely,

Zach
Delicious Tuning

[churchx]

Since most available fuel is petrol, most internal combustion engines (leaving aside diesels for argument sake) are designed first and foremost to be able to run on it. I guess that running on pure alcohol (E100) may bring a bit more issues in daily usage then compromise-ish E85. For example, if there are problems with winter cold start with E85, most probably they will be way more multiplied with E100 and so on. +As there is not much difference for our engines tune/power gains wise with having more ethanol content/even higher octane number then what E60-70 has, it might be another reason not to seek for E100. Salt makes some food taste better .. but no-one tries to put tenfold doze of it in food "because surely it will be better if less of it was good". Yes, even higher octane number allows one to run advance timings further, run at even higher compression with no knock .. but not on our engines, that are not designed to run with that high of compression.

[DeliciousTuning]

Originally Posted by brzaapi

Zach,

Just curious, is there any concerns at all with running E100 with the flex fuel kit on the BRZ that you all have seen. Since I am finding it hard to find ethanol content higher than E60 right now, I thought i would blend some E100 in (from the same station) to raise my content. But then of course I couldnt help but think....well if E85 is good then surely E100 is better.

However, i would rather hear your thoughts. Or anyone who has something to add.

Church there nailed it pretty well. In our tunes we actually leave a large safety cushion and don't advance timing further past 60-65% ethanol content on NA tunes. That being said, you're right about at max advance right now. You won't find any benefit to mixing in more ethanol, and may in fact find more difficulties with startup in cold weather or proper lubrication of the DI pump. The DI pump relies heavily on the lubricants in petrol based fuels for proper functioning. This lubricating additive is also present in the "other" 15% in E85. In E100, there are virtually no lubricating agents and this can cause some problems.

TL;DR: No real benefit to going about 65% ethanol with our NA tune, or 75% ethanol with our FI tunes.

Sincerely,

Zach
Delicious Tuning