HHO Updates 5/18/2009

Updated: 09/11/2010
Here's the latest on my Hydroxy assisted 71 VW Bug. So far the results have been impressive, to say the least. I got documented proof of at least 43.9 mpg just a few days ago, and I'm getting nowhere near the efficiency that the cell is actually capable of, since my electrolyte is fairly weak at 4 tablespoons of Sodium Bicarbonate per gallon of water and I also have no PWM to effectively control the current draw of the cell (yet). I ordered a bare PC board from ZeroFossilFuel (thanks guy!) and have some of the stuff to assemble it, but I still need some key components to finish it up. Pretty soon, pretty soon...

Update: Changed electrolyte to Sodium Hydroxide (much cleaner and more efficient). Installed a pre-built 75 amp PWM that works just great, along with a console mounted shunt-type ammeter and an easy to reach potentiometer to adjust the amps on the fly. Changed out alternator for a 55 amp unit. Got rid of the mechanical fuel pump and installed an electric one to alleviate my vapor-locking issue. Switched to Castrol Syntec oil for better engine protection. Just turned 25,000 miles yesterday since the overhaul. ;-) Still running like a champ!

A little info on the engine for the benefit of Ehnriko and any other VW enthusiasts :-)

Stock case with a counterbalanced stock stroke crank, reduced size power pulley, 87 mm. jugs with teflon coated slipper pistons, shot peened high strength rods with high tension rod bolts, Engle W-100 street cam 420 lift 276 duration 108 degree lobe centers. Straight cut steel cam gears, Custom heads with stainless steel valves (40mm intake, 35.5mm exh.) and small chambers, swivel-foot valve lash adjusters, 13.5 lb. flywheel, dual 40mm Kadron carbs with 125 mains, mild porting work on heads and intake manifolds, high volume oil pump with filter, Bosch 009 distributor with Pertronix electronic ignition and Bosch blue coil. Makes about 105 - 110 hp. in the current configuration. Redline's around 5800 rpm. Best rpm for best mileage is around 3000-3200 = abt. 60-65 mph. ;-) The car is *very* snappy for just a little larger than stock bore, and surprisingly stays pretty cool with the stock oil cooler and the power pulley.

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Science & Technology

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