Where can we get a computer to adjust timing/fuel mixture

[triffid]

ok it works now.hope this will be helpful.triffid

[aethernut]

Check this Wikipedia page--http://en.wikipedia.org/wiki/Engine_Control_Unit#Programmable_ECUs

There are several manufacturers and OS systems listed at the bottom of the page.

[yamalaris]

hello,
I use the megasquirt system , low cost and will run any motor. hope this helps,
Tim

[buzneg]

the halo plug instructions say for computer managed motor's to diconnect the battery then reconnect it after the new plugs are on, this resets the computer. It may take 10 miles of driving for the computer to "learn" the new system. This should work. A mechanic said it takes 20mins with the battery disconnected to make the comp reset. It says if the car doesn't have on board motor managment the timing needs to be changed manually. Bad timing can cause misfires and damage the engine.

[Chaoticside]

Hi - I noticed quite a few people running HHO systems on older hondas.  I used to do performance tuning a while back and there are a few ways you can accomplish tuning on OBD0 and OBD1 Hondas.  This will allow you to completely remap the fuel curve and ignition timing if you choose to do so.  The process requires you to "burn" bin data onto chips which you insert into a ZIF socket that is soldered into the ECU board.  These were meant to be used on high performance engines but since you basically have complete control over the fuel and ignition curves you can pretty much use it for whatever tuning you need.

NOTE: This involves opening and soldering to your current ECU so make sure you're comfortable with that.

http://www.superhonda.com/tech/honda_ecu_programming.html - This link gives some information on the socket you'll be soldering in and also mentions one of the few tuning softwares out there to accomplish this.

Software:
Turboedit - OBD0 honda ecus - http://www.turboedit.org/
Crome - OBD1 honda ecus - http://www.tunewithcrome.com/
Uberdata - OBD1 honda ecus - http://uberdata.pgmfi.org/ (seems to be down at the moment)
Hondata - http://www.hondata.com/
I believe they also allow datalogging to help with the tuning process.

As someone else mentioned, Megasquirt is also a good alternative if you're not comfortable with physically modifying your ECU.
SDS is another one which allows generic tuning (not honda specific) http://sdsefi.com/ - I personally have not used SDS but have seen it run some very high performance motors (500hp+) so I'd guess it might work in an HHO tuned atmosphere.

http://www.xenocron.com/catalog/index.php is a link to a place I used to use for chips and the actual rom burner also has a bin library for basemaps although most of them enrichen the mixture due to the fact that most people use these programs for turbocharged applications.
http://www.pgmfi.org/ - also a great source for information about doing tuning and fuel maps yourself and also a decent forum. (Link seems to be down at the moment but perhaps it'll work later on.)

Again, if you choose to look into the above products PLEASE do your research before jumping in to make sure it'll work with your application!  This is only meant to be suggestions! Tuning is critical to engine performance and if you screw something up it could seriously damage your motor.

I hope this is of some help to someone!
Chaotic