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Old 07-14-2016, 04:44 PM   #70 (permalink)
RustyLugNut
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Lean burn is where HHO can be most effective for the DIY guy.

Quote:
Originally Posted by Xist View Post
If HHO would not make a difference without an ECU tune, how would you know the tune itself would not be responsible for the entire difference?
I mentioned in another thread that I had a 1990 Daihatsu CB90 engine ( 1 L ) running at 28:1 AFR ( limits of the Innovate wide-band we used ). It could not run smoothly at 22:1 AFR. It was not designed for lean-burn like some Hondas. Also, we could not dial in enough ignition lead to produce usable torque at that AFR. Misfires and bogging occurred. The addition off HHO allowed smooth running with reduced ignition lead and minimal throttle use all the way up to 28:1 AFR. At that AFR, if you turn off the HHO, the engine dies.