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Old 11-11-2009, 09:35 PM   #204 (permalink)
tangomar
EcoModding Lurker
 
Join Date: Jul 2008
Location: US
Posts: 76

sukisuki - '00 Suzuki Grand Vitara 4wd
90 day: 21.88 mpg (US)
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aerohead, remember that if you have an fuel injected car with ECM/ECU you have to trick it if you change the combustion in any way.
In fact transferring more heat will require less fuel -> more oxygen at the cat.
Then the ECU will react adding fuel until it gets to stoichiometric again. It is a continuous war that doesn't see many winners.

Even adding EFI (analog or digital) might not work for you.
I am going to try the volo chip (FS2). I will see if I can get 5% more with just acetone/xylene/oil. If it works I'll put again more performing spark plugs (the halo worked well). If it will work well I'll add HHO.

But contrary to all the other mods, combustion mods are very difficult to obtain (even if they would be the most effective in term of results) due to the computer feedback system and continuous learning it has.

Good luck (and be safe in the first place: flame arrester, double bubbler, relay switch...)
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