carrera1984
09-26-2016, 02:29 PM
We don't seem to have a definitive thread out there. I thought I'd share my experience and maybe a few other members can share theirs if they have used it. I have questions, and I'd bet other may have questions, as we're all still searching for cooler intake temps, more power, and less engine boom on our mid engine turbocharged challenged builds.
What Is Methanol/Alcohol/Water Injection?
Methanol Injection is used to cool intake temperatures and suppress detonation. A fine mist of Methanol, Alcohol or Water(or a mix) is injected into the air stream mixing in the combustion chamber with gasoline. For the WRX platform, the best injection point is intercooler output area. The most popular fluid is around a 50/50 mix of a Methanol/denatured alcohol or slightly less on the water content. The result is higher octane due to the meth/alky and lower charge temps due to the evaporate cooling effect the water has. Higher octane allows you to run more boost safley and advance timing which can significantly raise horsepower. A tune is almost always needed at the fuel stoichometry(best air/fuel burn ratio) will change slightly, oh and we want to tune for extra power :). Fluid can be sourced almost anywhere. -20 to -35 windshield washing fluid has a great amount of methanol in it. I used to run this plus 1 bottle heet(gas line deicer). I believe this mix was around 50/50. The best washer fluid is the cheapest one that has the lowest freeze temperature. The cheaper stuff tends to have less trace amounts of perfumes/dyes and ethylene glycol, which people have suggested, may adhere to engine parts. Mainly methanol injection is used by the boost community as compressors heat up incoming air to high temperatures.
Whats Needed?
-Pump
-tank or bulk head window washer tank fitting
-application specific nozzle
-boost sensing switch, usually adjustible
-alcohol tolerant lines & hardware
Methanol Injection instructions for a WRX STI-
http://share.subiefiles.com/subiefiles/aftermarket%20and%20diy/SnowPerformance%20WRX%20Meth%20Injection%20Install .pdf
My Experience-
I had a Vortech V5 supercharger installed on a 2004 Hyundai Tiburon GT V6. At the time this was the biggest hp "kit" out there. A couple companies had roots style chargers that were safer on stock internals however the v5 really moved air. I turned to Snow Performance. The price was decent and the kit had a progressive boost sensing switch. I was one of the few that after my own draw-through MAF setup, was able to not blow there motor. Tuning was horrible for that car, mainly piggybacks or you had to splice wires for an aftermarket ECU, which meant no legality in emissions controlled states. For Illinois, it was a no no.
Unfortunately I don't have logged evidence how much it helped, what temps looked like before and after. All I know was what i had researched and that it kept me safe when others were popping left and right. Has anyone used this on an 818 before and had good results. Logged info on air intake temps would be amazing! Right now I'm looking into being one of the guinea pigs, because well it's sitting around catching dust and sounds promising. While I'm only a week or 2 away from startup, I'm most likely a month or 2 from go kart stage, where I would be able to get some real answers. If I'm able to get intake temps down in our challenged setup and provide some logs, this just might be a good alternative to the proven AWIC setup for people that don't feel like installing and shelling out the money on the system. Advantages or AWIC could potentially be higher octane, lighter weight, cost savings and easier install. Disadvantages could be running out of fluid(there are fail-safes available for this) and pretty much mandatory tune... as far as I can think of.
I'm curious to hear everyone's opinions and knowledge on this subject. Maybe a few people that have used it before, even if its not a 818 or WRX.
What Is Methanol/Alcohol/Water Injection?
Methanol Injection is used to cool intake temperatures and suppress detonation. A fine mist of Methanol, Alcohol or Water(or a mix) is injected into the air stream mixing in the combustion chamber with gasoline. For the WRX platform, the best injection point is intercooler output area. The most popular fluid is around a 50/50 mix of a Methanol/denatured alcohol or slightly less on the water content. The result is higher octane due to the meth/alky and lower charge temps due to the evaporate cooling effect the water has. Higher octane allows you to run more boost safley and advance timing which can significantly raise horsepower. A tune is almost always needed at the fuel stoichometry(best air/fuel burn ratio) will change slightly, oh and we want to tune for extra power :). Fluid can be sourced almost anywhere. -20 to -35 windshield washing fluid has a great amount of methanol in it. I used to run this plus 1 bottle heet(gas line deicer). I believe this mix was around 50/50. The best washer fluid is the cheapest one that has the lowest freeze temperature. The cheaper stuff tends to have less trace amounts of perfumes/dyes and ethylene glycol, which people have suggested, may adhere to engine parts. Mainly methanol injection is used by the boost community as compressors heat up incoming air to high temperatures.
Whats Needed?
-Pump
-tank or bulk head window washer tank fitting
-application specific nozzle
-boost sensing switch, usually adjustible
-alcohol tolerant lines & hardware
Methanol Injection instructions for a WRX STI-
http://share.subiefiles.com/subiefiles/aftermarket%20and%20diy/SnowPerformance%20WRX%20Meth%20Injection%20Install .pdf
My Experience-
I had a Vortech V5 supercharger installed on a 2004 Hyundai Tiburon GT V6. At the time this was the biggest hp "kit" out there. A couple companies had roots style chargers that were safer on stock internals however the v5 really moved air. I turned to Snow Performance. The price was decent and the kit had a progressive boost sensing switch. I was one of the few that after my own draw-through MAF setup, was able to not blow there motor. Tuning was horrible for that car, mainly piggybacks or you had to splice wires for an aftermarket ECU, which meant no legality in emissions controlled states. For Illinois, it was a no no.
Unfortunately I don't have logged evidence how much it helped, what temps looked like before and after. All I know was what i had researched and that it kept me safe when others were popping left and right. Has anyone used this on an 818 before and had good results. Logged info on air intake temps would be amazing! Right now I'm looking into being one of the guinea pigs, because well it's sitting around catching dust and sounds promising. While I'm only a week or 2 away from startup, I'm most likely a month or 2 from go kart stage, where I would be able to get some real answers. If I'm able to get intake temps down in our challenged setup and provide some logs, this just might be a good alternative to the proven AWIC setup for people that don't feel like installing and shelling out the money on the system. Advantages or AWIC could potentially be higher octane, lighter weight, cost savings and easier install. Disadvantages could be running out of fluid(there are fail-safes available for this) and pretty much mandatory tune... as far as I can think of.
I'm curious to hear everyone's opinions and knowledge on this subject. Maybe a few people that have used it before, even if its not a 818 or WRX.