[Eldi Z]

Originally Posted by Joshinator99

I’d do E20 if you can along with the 93+. Better than none for sure.

Thats what I thought. Not touching the timing anyway.

But now, another question comes to mind.
What if I added a Flex sensor?
What would happen on E20?

[Joshinator99]

Originally Posted by Eldi Z

Thats what I thought. Not touching the timing anyway.

But now, another question comes to mind.
What if I added a Flex sensor?
What would happen on E20?

Flex sensor is best if you’re going to mess with E at all. It will allow the car to tweak the fueling depending on how much E you’re running (since it takes more E than regular gasoline to hit stoichiometric).

[Megahurtz]

Originally Posted by Eldi Z

Thats what I thought. Not touching the timing anyway.

But now, another question comes to mind.
What if I added a Flex sensor?
What would happen on E20?

Yes that was a typo, I meant 93 octane. As for the flex sensor, it can be enabled and tuned to only vary the stoich but not add any timing. You would just need to be clear with your tuner.

Technically speaking though, using VP Racing Octanium would accomplish the same thing as E20. There isn't any chemical cooling effect, but it increases the detonation buffer. You will still lose power as the blower heats up because you have to pull timing at a faster rate than if you had meth injection or E50+.

https://vpracingfuels.com/products/v...8G6Oh68BkYVxlZ

Just a thought in case you were limited on fueling room. To run any sort of E on a boosted LT1, you're likely going to need the LT4 hpfp and injectors.

[Katech_Mike]

99% of ring land damage is NOT caused from ring butting.

Factory LT4's have a .8mm ring that uses a gap in the .017 range. They NEVER get hurt from ring butting.

LT1's hurt the pistons because they're junk cast parts with a high top ring location. The thinnest part of the piston is where the back of the top ring groove gets close to the valve pocket. This measurement is commonly referred to as the B-Dimension. This is where they fail 99% of the time. Typically from detonation.

[Eldi Z]

Originally Posted by Megahurtz

Yes that was a typo, I meant 93 octane. As for the flex sensor, it can be enabled and tuned to only vary the stoich but not add any timing. You would just need to be clear with your tuner.

Technically speaking though, using VP Racing Octanium would accomplish the same thing as E20. There isn't any chemical cooling effect, but it increases the detonation buffer. You will still lose power as the blower heats up because you have to pull timing at a faster rate than if you had meth injection or E50+.

https://vpracingfuels.com/products/v...8G6Oh68BkYVxlZ

Just a thought in case you were limited on fueling room. To run any sort of E on a boosted LT1, you're likely going to need the LT4 hpfp and injectors.

OK. So when adding only E20, there is no real point in a Flex. Just having it in the mix can help mitigate some of the potential detonations.

I already have LT4 fueling End-to-End, so in this respect, I am covered and "ready" for E (even to a high rate of it ~50-60 I believe), however, unfortunately, I do not have E readily available - in high enough accessable quantities. Wish I had an E-Pump in my back yard
My understanding is, that for pure 93 pump gas, LT4 fueling is not helping at all, I.E. in mitigating detonation?
This means, that I basically wasted my money, getting the Injectors and fuel pumps?

[Megahurtz]

Originally Posted by Eldi Z

OK. So when adding only E20, there is no real point in a Flex. Just having it in the mix can help mitigate some of the potential detonations.

I already have LT4 fueling End-to-End, so in this respect, I am covered and "ready" for E (even to a high rate of it ~50-60 I believe), however, unfortunately, I do not have E readily available - in high enough accessable quantities. Wish I had an E-Pump in my back yard
My understanding is, that for pure 93 pump gas, LT4 fueling is not helping at all, I.E. in mitigating detonation?
This means, that I basically wasted my money, getting the Injectors and fuel pumps?

You need the sensor so you can tell what the % of E is in the tank. There is a very fine line between how much E the ECU will compensate for before it starts going too lean and running like crap.

Otherwise, just use boostane or octanium in every tank to minimize the risk of detonation.

[Eldi Z]

Originally Posted by Megahurtz

You need the sensor so you can tell what the % of E is in the tank. There is a very fine line between how much E the ECU will compensate for before it starts going too lean and running like crap.

Otherwise, just use boostane or octanium in every tank to minimize the risk of detonation.

And if I just put in an amount of E that will get the mix to ~ 20% without a Flex, it should help mitigate detoation I would think. I do not have any kind of Octane booster, but I can get hold of Toluene and Xylene as well.