December 2, 2010
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WHAT IS IT? The Bazzaz fuel-injection tuning equipment uses an oxygen sensor in the head pipe and lets you make custom fuel maps for your track and riding style.

WHAT’S IT COST? $324.95 (MX Fuel Controller), $349.95 (Z-AFM kit)
or (909) 597-8300.

WHAT STANDS OUT? Here’s a list of things that stand out with the Bazzaz MX Fuel Controller and Z-AFM kit.

(1) History. Ammar Bazzaz was a race engineer at Yoshimura’s AMA Superbike program for six years. Ammar started his own electronic fuel-injection company in 2003 (for street bikes). His plan was to develop his tuners with race teams first, and then bring the product down to the consumer level for the local rider. Now that fuel injection has moved to the dirt market, Bazzaz has expanded its focus. Bazzaz didn’t sell products under their name originally, but instead they made the PIM and Data Box for Yoshimura. The Yosh PIM2 and Data Box are identical to the Bazzaz hardware, but the Bazzaz software has extra features.

(2) Prerequisites. You will need an IBM-compatible computer to run the Bazzaz software. A laptop is preferable so you can take it to the track, but the controller can be removed and taken inside to your desktop computer if necessary. A bung-equipped head pipe is required for the oxygen sensor.

(3) Hardware. The Bazzaz FI MX Fuel Controller is similar to other fuel-injection tuners in that it allows the user to adjust fuel delivery in one percent increments at specified throttle openings and rpm. It can be switched between two maps without a computer. Where the Bazzaz equipment separates itself from its competitors is with the Z-AFM (Air Fuel Mapping) kit. The Z-AFM allows the user to choose multiple air/fuel ratios at different throttle/rpm ranges. To achieve this, it uses a head pipe-mounted air/fuel sensor that collects data as the rider does laps. The unit records the data and ultimately recommends the necessary changes to reach the target mixture. In essence, it is self-mapping.

(4) Performance. The self-mapping feature is neat, but it doesn’t take all the guesswork out of the process. The air/fuel ratios still have to be determined. On the track, testers can definitely feel changes. The more heavily modified the bike, the better this equipment works. With a stock bike, you can tune the feel, but you won’t see huge performance gains. Bikes with any number of internal engine mods better appreciate the fuel-injection massage. Again, the Bazzaz tuner does not make more horsepower?it just repositions it based on fuel input.

WHAT’S THE SQUAWK? There are three downsides. (1) Head pipe bung. Yoshimura sells a ready-to-go head pipe, but modifying other headpipes for the oxygen sensor is a chore and can be costly on titanium pipes. (2) Ignition. Bazzaz is working on a version that can change the ignition timing as well as fuel timing. It isn’t ready yet, though, and the MX Fuel Controller and Z-AFM are limited to fuel map changes only. (3) Difficulty. The MXA test crew has vast experience with aftermarket mapping programs, so the Bazzaz stuff was a snap for us. But for the inexperienced backyard tuner, there will be some serious head-scratching.

Bazzaz may be unknown right now, but as more fuel-injected bikes hit the market, their EFI tuning equipment will become more acceptable to the masses. It’s a little too soon at the moment.


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