Adding ethanol to v-power

[Cerano]

Im currently sourcing for a couple of litres of pure ethanol. any bro has any idea ?

 

 

[Kusje]

Secondary school chem lab.

[Cerano]

Secondary school chem lab.

 

apparently so but they wont give you for no reason

[Aimnfire]

Im currently sourcing for a couple of litres of pure ethanol. any bro has any idea ?

 

malaysia got

i use to buy 500ml for 20 rm(that was back in 2006)

overthere they call it air tapai.

[Cerano]

malaysia got

i use to buy 500ml for 20 rm(that was back in 2006)

overthere they call it air tapai.

 

isnt that quite expensive considering ethanol is essentially alchohol?

[Hermitage]

Im currently sourcing for a couple of litres of pure ethanol. any bro has any idea ?

 

But why??

 

Ethanol in pure form would be hard to come by I think. 'Cos it's the only form of alcohol that's potable, and most people would sell it "cut" to about 40%abv. It would take the form of Vodka, Rum, Eau-de-vie and other types of spirits/liqueurs.

 

Perhaps if you're looking for pure methanol instead, which is an industrial alcohol (poisonous) made through the fermentation of wood sugars (pectin substances in fruit), your search would be far easier.

 

Again, why would you have a need to add alcohol into your petrol??

[Cerano]

But why??

 

Ethanol in pure form would be hard to come by I think. 'Cos it's the only form of alcohol that's potable, and most people would sell it "cut" to about 40%abv. It would take the form of Vodka, Rum, Eau-de-vie and other types of spirits/liqueurs.

 

Perhaps if you're looking for pure methanol instead, which is an industrial alcohol (poisonous) made through the fermentation of wood sugars (pectin substances in fruit), your search would be far easier.

 

Again, why would you have a need to add alcohol into your petrol??

 

you can google it bro.

 

it increases the octane level. if your engine has a high enough compression ratio it can make use of this.

[Hermitage]

you can google it bro.

 

it increases the octane level. if your engine has a high enough compression ratio it can make use of this.

 

OIC. But does it have to be ethanol? Would methanol not work just as well?

[1fast1]

You would have better luck with toluene which is more commonly used as an octane booster. Toluene has a RON of 114. You can also use xylene. Can't remember the RON of xylene off the top of my head, but it should be close since it's chemically just got another methyl group added on to the benzene ring.

 

Alcohols are known to be corrosive to the fuel system. Also, even though the RON of ethanol is higher than toluene (ethanol RON is 129), it has a greater "sensitivity" (RON-MON), which makes it perform worse under load. Also, ethanol contains less specific energy per unit volume than toluene, which again makes it a worse choice in a combustion engine.

 

So, short answer: use toluene.

 

Then again, you shouldn't be doing ANY of this stuff unless you really know what you're doing and your car is tuned to handle the higher octane fuel.

Edited April 4, 2010 by Turboflat4

[Zangetsu77]

Why don't just settle for conventional octane booster or drag gasoline like the HKS ones, which already has a 110 octane rating? They may cost more but it's a lot more hassle free and you can buy it from shops.

[Acieed]

Drive your car to Thailand, and you will have E-10 premixed :-)

[1fast1]

Why don't just settle for conventional octane booster or drag gasoline like the HKS ones, which already has a 110 octane rating? They may cost more but it's a lot more hassle free and you can buy it from shops.

 

Because conventional octane boosters (the sort you can buy from Autobacs) simply don't work. Full-stop. They probably add 0.something RON to your full tank. If that.

 

Honestly don't know anything about drag fuel available in Singapore. If they've been properly rated, then, sure they should work.

[Smhomie]

No point unless you are always dragging at max advanced timing or burning extra lean.

 

Stock ecu will advance ign timing until knock detected then retards, high RON retards early burn but till a certain point. Anything beyond goes to waste.

 

You will also need to know the ratio for dilution which makes me tired of doing it. Your tank is usually 55-70 liters, so what is the % of dilution?

 

Toulene was used since the surface tension of fuel droplet would propagate and intensify the burn and hence more powerful power stroke.

 

It was also used to cut back on knock when casting flashes within combustion chambers caused pre-ignition due to hardware + software tuning.

[Cerano]

No point unless you are always dragging at max advanced timing or burning extra lean.

 

Stock ecu will advance ign timing until knock detected then retards, high RON retards early burn but till a certain point. Anything beyond goes to waste.

 

You will also need to know the ratio for dilution which makes me tired of doing it. Your tank is usually 55-70 liters, so what is the % of dilution?

 

Toulene was used since the surface tension of fuel droplet would propagate and intensify the burn and hence more powerful power stroke.

 

It was also used to cut back on knock when casting flashes within combustion chambers caused pre-ignition due to hardware + software tuning.

 

im aiming at 8-10% Ethanol bro. my tank is 66L.

 

i have a piggyback ECU on

[Cerano]

Why don't just settle for conventional octane booster or drag gasoline like the HKS ones, which already has a 110 octane rating? They may cost more but it's a lot more hassle free and you can buy it from shops.

 

how much is the HKS race fuel going at?

 

im unaware that they sold race fuel. i was actually going to import fuel of octane 120 from the US but i found the legality bit of shipping fuel in to be too much.

[Zangetsu77]

Because conventional octane boosters (the sort you can buy from Autobacs) simply don't work. Full-stop. They probably add 0.something RON to your full tank. If that.

 

Honestly don't know anything about drag fuel available in Singapore. If they've been properly rated, then, sure they should work.

 

Octane boosters does work on tuned cars. I tried HKS octane booster on a stock V6 3.5L mercs engine once and couldn't feel anything appreciable. On a modified JDM car like an Evo, the difference is marked. Surely got some way to get high octane drag fuel, given the increasing popularity of motorsport and the number of races we are organizing. Lemme check on this...

[1fast1]

Octane boosters does work on tuned cars. I tried HKS octane booster on a stock V6 3.5L mercs engine once and couldn't feel anything appreciable. On a modified JDM car like an Evo, the difference is marked. Surely got some way to get high octane drag fuel, given the increasing popularity of motorsport and the number of races we are organizing. Lemme check on this...

 

I've used STP octane booster on my old modded Hydra-tuned (for SPC 98) WRX (about 350hp) when pumping Petronas 97 in Malaysia en route to Sepang for a track day. Didn't help one bit. Was audibly knocking on load until I put it on the low-boost setting of my AVCR. I was forced to run low-boost on the track, but at least my car remained healthy.

 

Subjective anecdotal experiences don't count for much (whether they're yours or mine). So far, there have been no convincing objective tests that bear out the claimed benefits of off-the-shelf fuel additives.

 

I'm not saying they won't boost RON *at all*. But their effect may be negligible. And the blurb may be misleading - when the bottle says it'll increase octane by "5 points" does that mean a 5 RON increase (which would be huge), or a 0.5 RON increase (which would be negligible, but far more believable)?

 

Enthusiasts have had good objective gains with toluene, and I'm inclined to think it would work because many formulations of real race gas have increased toluene fraction. Besides, the math involved in knowing how much toluene to add to your tank is elementary - just add the RONs in volumetric ratio. It's something that any serious enthusiast can do, once he gets his hands on some.

Edited April 4, 2010 by Turboflat4

[Smhomie]

10 pts is 1.0 RON, apparently not many users realise this. TurboFlat4 has brought up a valid point here.

 

More interesting is whether if such additives do work for us in singapore where we have 92, 95 and 98 RON.

 

Even at worst case scenario, MON would be 91, 94 and 97 which is same as JB PON (Pump Octane Number).

 

Our cars especially contis require us to use premium or super unleaded depending.

 

USA only has 87, 89 or 91 RON. Obviously they need aftermarket assistance in the fueling department if their cars are modified, even more so since they are at high altitude elevation. Prevents knock.

 

I am not convinced singapore cars need octane boosters or additives, they are here to relief you of further cash unnecessarily

 

VP racing supplies racing fuel by the drum loads, consistent 112 RON but what for? Do you drive a funny car?