Mixing up GEM - The Best Race Fuel you Haven't Heard of yet.

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Mixing up GEM - The Best Race Fuel you Haven't Heard of yet.

Рет қаралды 2,327

Күн бұрын

This is a technical how-to about GEM, a race fuel that I use in the Talon.
GEM - Short for G(as) E(thanol) M(ethanol) - is a mixture of fuel that act a lot like E85, but contains up to 57% Methanol so it cools better and makes more power. I've been running it since 2015, and my go-to mixture is 45% Methanol.
I published an article years ago, and get questions about how to make GEM all the time. I figured I'd put together this video to answer even more questions about GEM. If you want to know more about GEM, please visit:
ftyracing.com/...

Пікірлер: 29

@bbcnova56 Ай бұрын

Now we need gemn!!

@christart8461 19 күн бұрын

@@bbcnova56 gas ethanol methanol nitro ??

@Colt_10R80 2 ай бұрын

Thanks for doing this, such a clever idea

@shaunwerning4975 10 ай бұрын

Have absolutely bothered you asking questions about GEM in the recent past... very much appreciate this video and probably won't have reason to bother you over it in the future. Ha!

@christart8461 Ай бұрын

I cannot get him to reply to me.. how much more power is this fuel making?

@shaunwerning4975 Ай бұрын

@@christart8461 that's a question without a definite answer. GEM will probably not directly convey additional power like nitro or other oxygenated fuels but it may allow the engine to be tuned differently than when on pump gas or E85 which could then yield more power. More timing, more air density and so on. Just depends...

@Andersljungberg 2 ай бұрын

However, there is a KZfaq video that the US military did a test that showed that Methanol did more damage than ethanol. eg that there were more metal particles in the oil. this test was probably done in the 70s, so a long time ago

@Andersljungberg 2 ай бұрын

In Sweden, there should be no Methanol in regular E85 In addition to ethanol and gasoline, E85 in Sweden also contains the denaturants MTBE/ETBE and isobutanol

@Andersljungberg 2 ай бұрын

Toluene or Xylene Does Raise the octane in MON more than alcohol-based fuels? But the disadvantage is that these are strong solvents. But on the other hand, apparently, for example, ethanol has stronger knock resistance than what the octane level says. Certainly more oxygen too

@trtrevenen 8 ай бұрын

show us the dyno sheets when you get them

@Robertrogers-p2y 21 күн бұрын

How does this react in a e85 tester

@Andersljungberg 2 ай бұрын

Surely there should be equipment that can tell exactly what octane content is in the petrol? .Or that can show ethanol content. There are cars that can show the octane content on a screen

@suprcandy 8 ай бұрын

Nice video Sir. Have you tried pre-mixing fuel and store it for some time? Does it separate or go bad in any way?

@phydiux 8 ай бұрын

The point of adding the Ethanol in GEM is to prevent separation. I've had fuel sit over the winter and used it the next season without any problems.

@Andersljungberg 2 ай бұрын

If you are a regular mischievous driver, it may not matter that much if it is 100 octane or 102 octane ?

@JoeWrenches Жыл бұрын

Uncle Scoooooooooott, what the specific gravity of this GEM mixture?

@phydiux Жыл бұрын

Theoretically? .788. Can I borrow your Hydrometer?

@Jason_Bacon Жыл бұрын

One for that Al Gore rhythm machine.

@christart8461 Ай бұрын

How much more power over pump gas ?

@frankgonzalez9302 7 ай бұрын

Hello there I was just curious once you mix the fuel what is the shelflife?

@christart8461 5 ай бұрын

How much more power are you making off of this stuff compared to pump 93 when your AFR is right?

@christart8461 Ай бұрын

Are you doing this for emissions or more power ??

@user-ki8zf1rp1e Ай бұрын

I'm sure with the presence of meth, it'd probably have a slight edge over race ethanol due to the latent heat of evaporative properties of meth. If anything, this is more for quantity purposes, race gas is 30% more expensive than ethanol and meth is nearly 20% cheaper than ethanol. Undiluted meth is corrosive and lacks the energy density of ethanol and gasoline. It's a fuel that CANNOT sit in the tank and HAS TO be flushed out after every use with gasoline or you'll risk damaging fuel components, especially injectors. Assuming you had one pale of gas, one pale of ethanol, and two meth pales, you'd have nearly enough to make five pales if mixed to stoichiometric like in the video. Anybody jumping through these hoops for emissions has been misled, you'd be better off running gasoline and slightly leaning out the map on low load cruising scenarios.

@gapu263 7 ай бұрын

What lambda do you target on this mixture compared to E85/E98? Did you get a chance to test it on the dyno?

@phydiux 2 ай бұрын

It's the same air:fuel ratio as E85.

@colt2x45 8 ай бұрын

Are you intercooled?

@a_common_weeb Жыл бұрын

Hello people who will be sent to this video

@Jamal-fz7pn 2 ай бұрын

Why not use 100% meth ?

@phydiux 2 ай бұрын

Fuel pump, injector and class requirements. Also, with this fuel I have no change in the tune between street and track tunes, as it is a drop in replacement for e85.