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***midiwall*** · 04-09-2007, 10:14 AM

MI = Methanol Injection.

You spray a mix of water/methanol into the intake in order to reduce the intake temperature. This allows you to run a denser fuel mixture at high RPM which lets you WAY advance the timing which nets you horsepower.

I have tuning to do, but the early results are pretty impressive. I used to only be able to run about 1+ (relative) degrees of advance at WOT, this morning I was +15 without ping. Flooring it from 30mph will toss you back into the seat.

This is the last mechanical step I want to take on my quest to pass 400hp at the crank. The rest now is tuning.

04-09-2007, 10:14 AM	#5 (permalink)
*midiwall* Sponsoring Member Join Date: Dec 2002 Location: Seattleish, WA Posts: 9,078	MI = Methanol Injection. You spray a mix of water/methanol into the intake in order to reduce the intake temperature. This allows you to run a denser fuel mixture at high RPM which lets you WAY advance the timing which nets you horsepower. I have tuning to do, but the early results are pretty impressive. I used to only be able to run about 1+ (relative) degrees of advance at WOT, this morning I was +15 without ping. Flooring it from 30mph will toss you back into the seat. This is the last mechanical step I want to take on my quest to pass 400hp at the crank. The rest now is tuning. __________________ ~ Mark '96 4Runner Limited S/C MI - 370cc injectors, Air! horns, Airaid MIT, ATS A-arms, 285/75/R16 BFG MTs, Bored TB, Brembo slotted, Cobra 75 WXST, Deckplate, Downey headers, Hayden cooler, IPT valve body, Level 10 torque convertor, Meanstreak exhaust, OME/OME rears, On-board PC (XM, Nav, WiFi, etc), Port 'n Polish, Remote Start, SAW fronts, Hilux console, SMT-5, Stubb's sliders, Supra MAF, TJM-17, 2.0" pulley, Viair 450c, Walbro 190, Weasy2k cams