Evaluating the Daytona Twin Tec TC88A Igntion Module

It seems like I've constantly been tweaking my Sportster since I bought it.  When I purchased it new, it was a bone stock, baseline 2006 Sportster 883.  Over the years, I've put on aftermarket exhaust and intake (paid the Harley tax), done the 1200 conversion, added cams, and had the heads ported and planed.  Each change made a noticeable improvement in performance.  My most recent addition was installing the TC88A Ignition Module.  It was definitely money well spent.

Installation was a breeze.  I had the old module out, and the new module installed in less than 30 minutes.  I should state that this ignition module is really designed for Twin Cam engines.  What this means to Sportster owners is that you won't get the maximum benefit unless you purchase the USB cable as well, which means an extra $75 to $100 on top of the ignition module, because it's a separate purchase.  With the USB cable, you can connect your computer to the ignition module and modify the module with a surprising degree of detail.  You can also save these modifications and even download mods that others have made from the Internet and upload them to your ignition module.

Learning all of this during the research phase saved me a lot of work.  I downloaded a couple of very popular maps before my ignition module even arrived, and made a couple of small modifications to them.

Some of the modifications you can make...
-Control the RPM of the rev limiter

-Control the timing advance, based on Manifold Air Pressure, RPM, etc.

-Offset the timing of the rear cylinder.  This supposedly keeps the rear cylinder cooler and prevents pre-detonation (pinging).  You do this by retarding the timing on the rear cylinder.  I set mine back 2 degrees.

-Recalibrate your speedometer/odometer

I'm still doing some minor fine-tuning, but overall here's what I've noticed:  The adjustable rev limiter is awesome.  I set mine at 6500 per my mechanic's recommendation, and I can hit 40 MPH in first gear!  I have noticeably more power in the low and mid range.  All of this comes with no noticeable decrease in fuel economy.

I can, without a doubt, wholeheartedly recommend this ignition module for anyone considering it.  It was easy to install, it's easy to configure, and the increase in performance is noticeable.