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Originally Posted by scribb
I'm starting to look into meth injection now that I've got most of the build issues sorted out. Got word today that the cams and springs are going to ship on time. Got my tuner connected with my builder, and they're stoked to see this project come together. Got a plan for parallel wiring a standalone ECU. So, now I'm starting to figure out all the peripherals, and methanol is top of the list--particularly as I decided to go forward with 10.1:1 compression.
For anyone not familiar with meth injection, I'll give you my rudimentary understanding of it. Methanol is mixed with water and injected into the air intake. The mixture cools the air and lowers air intake temperature, which lowers the risk of detonation during combustion, particularly when you advance timing. Since I'm adding street cams, increasing compression and advancing timing with an ECU, the chances of detonation are increased. Methanol will both increase the safety of pushing performance, and have the added benefit of allowing me to use normal gas, since the methanol also increases the octane in the air fuel mixture. Oh, and it can get me anywhere from 15 to 40 added hp, depending on how the motor is tuned.
My original goal was to build a reliable motor and get around 350hp naturally aspirated. It's looking like 400hp is definitely in range, more if I really want to push the envelope, which I'm probably not. Wherever the capacity of the motor winds up after we get it fully built, I'll dial it back to a max of 80%, and dial it back further for daily use. We'll see where that lands.
One of the items further down my list to research is either an android or PC ECU interface I can display on the stereo screen, to show gauges and change ecu settings. I've seen a few things in that realm, just need to zero in on a solution that will work.
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I missed this post!
I run water/meth. Although cooling the intake charge is a nice bonus, you won't see much a benefit being N/A like us boosted folks will, especially since I can't install an intercooler so my intake charge is hot hot hot. Meth in itself makes no power, let me put that out there. Where you do make power is the ability to advance timing due to detonation suppression. More timing = more power, roughly 1% for each degree of timing you can advance.
I have not heard of anyone successfully wiring it a full standalone along with the stock ECU still connected. Replacing the stock ECU with a standalone will not pass smog but if you keep the stock ECU in and try and jump it with a standalone the stock ECU is going to try and de-tune everything you do, and quite successfully I might add. Most tuners won't touch Toyotas with a stock ECU for that reason. That's why I run a piggyback ECU, the AEM F/IC 6, which does not have the ability to advance timing, which is why water/meth makes no power for me.
However, if your tuner does find a way to get the standalone to work in series with the stock ECU and not de-tune it I would be very interested in working with them as well.
