General information and benefits of methanol injection.
Manifold temperature data with various intercoolers, nozzle sizes and methanol/water mixtures.
Recommended kits & part numbers.
Yes, meth injection can be run with the stock intercooler.
3rd gear pull - Intake manifold temps drop 10-15 degrees below the intake temps every pull.
3rd gear pull - Intake manifold temps drop 10-15 degrees below the intake temps every pull.
M1 = 100% Pure Methanol
M5 = 95% Meth + 5% Nitro Methane
You can clearly see M5 destroys M1
This is a JDM STi 12L water tank I converted to work with my Aquamist Meth Kit on my 2006 STi.
If you're worried about forgetting to fill up your meth.....there's always bigger tanks.
- wiring harness with controller and 35 psi onboard (Manifold Pressure) MAP sensor
- 250 cc, 500 cc and 1,000 cc nozzles
- 200 psi pump
- 1.15-gallon tank with integrated fluid level sensor
- all required lines
- wiring harness with controller and 40 psi onboard (Manifold Pressure) MAP sensor
- 250 cc, 500 cc and 1,000 cc nozzles
- 200 psi pump
- 5-gallon tank with integrated fluid level sensor
- all required lines
- Prevents water/meth flow into the engine when the kit is not activated.
- If you park on a hill w/o the solenoid, nothing will stop meth from draining into the engine
- Should be installed as close to the nozzle as possible
- high flow capability (3,600cc/min)
- low current draw of only 0.75A that does not require the use of an additional relay
- protects the pump, solenoid, nozzle and engine from debris in the water/meth mixture
- helps prevent pump, solenoid & nozzle from getting clogged & preventing meth flow
- can filter particulates as small as 40 microns
- should be installed in-line BEFORE the water/methanol pump
- includes 250cc, 500cc and 1,000cc nozzles
- this does NOT need to be purchased, the kits come with these 3 nozzles
- I simply listed listed it here for reference if anyone ever needs to replace a nozzle
Before doing the logs start the car and put AF Correction1 and AF Learning1 on the AP gauge screen. Press and hold the test button on the AEM controller for 5 seconds then let off, watch the Correction and Learning....if the meth is spraying one or both should go to -20 to -30%. If this doesn't happen, stop here and don't do the logs. It means the meth is spraying and you need to troubleshoot. If the meth sprayed, then continue. Set the start spray to 10 psi, full spray to 14 psi. I don't recommend using boost juice. It can have extremely low methanol content and basically be water. You can search it YouTube and watch customers test it themselves and get like 10% methanol reading. I recommend buying a 5-gallon jug of VP M1 methanol and mixing it yourself.
These are the 3 main options to add fuel to the car:
1 - Motec + port injection: basically $13,000 - $15,000 and is the only proper solution to the fueling issues. The Motec can control the direct and port injectors correctly. Even though this is very expensive and out of most people's budget, it is the only proper way to add extra fuel to the car. Anything else is a lesser solution and has multiple downfalls.
2 - Port injection + Split Second Controller: $6000 this option is also very expensive and has multiple downfalls. The split second controller is an auxilliary device and does not talk to the ECU. One of the main issues with this solution is that you are paying a premium to install expensive fuel injectors on the car to atomize the fuel. But the split second controller only batch fires the injectors. This means that all 4 injectors are spraying all the time in a "batch". So even when cylinders are on the wrong stroke those injectors are still spraying on top of the closed intake valve. So all that money you just paid to atomize the fuel is going to waste puddling fuel on top of the valve. Another downside to the split second controller is that it requires it's own software and logging cable, which means for e-tuning the customer would need to have a laptop to be able log the port injection data. The split second software also does not allow you to modify the data for a car unless you are hooked to the car, which would require lots of time and coordination to log into each customers computer to make changes for each pull. And overall it's simply better to have large setups like this done in person due to all the money involved. Due to all of these issues I will not e-tune port injection cars.
3 - Meth injection (pre-throttle): $500 - $1500 this is the cheapest solution. There are many different brands and variations of methanol injection kits with all different levels of failsafes and functionality. I will not be going into those here.
Meth injection has multiple downfalls
