Product Review - HQ 500 vs SE255

THE FOLLOWING WAS TESTED AND SENT IN BY ONE OF OUR DEALERS

Build Info
• 2007 FLHTPI (Police Model Touring)
• 103 cubic inch
• Stock unmodified top end
• HQ-TC500-HC Cams vs SE255 Cams
• Rinehart True Dual exhaust
• Tuned by "Dusty" with a Race Tuner

The Story
One of our dealers (who is a Harley-Davidson Dealer) decided to put the Head Quarters HQ-TC500-HC cam to the test against a Screamin Eagle 255 cam as a bolt in on an otherwise unmodified motor with Rinehart True Duals and Screamin Eagle Air Cleaner.

To serve as a control, the pipes and air cleaner were installed and the bike was properly tuned before the cam swap. The results were 76.65hp and 92.06tq. The first test was to install the SE255 cam and retune. The results were 81.00hp and 96.07tq. The final test was to install the Head Quarters HQ-TC500-HC cams. The results were 86.51hp and 103.35tq.

It's important to point out that the test was unsolicited, unbiased and the tune performed by the exact same technician, in the exact same environment, on the exact same dyno, with the exact same motorcycle.

Cam	Horsepower	Torque
Stock	76.65	92.06
Screamin Eagle 255	81.00	96.07
Head Quarters HQ-TC500-HC	86.51	103.35

With the Head Quarters cam, there was an increase of 10 horsepower and 11 torque compared to the stock motor with a good tune. When comparing the Head Quarters cam to the SE255, one of the higher performing SE cams, there was an increase of 5.5 hp and almost 7.5 tq.

For those considering a cam, where will you get the best bang for your hard earned buck?

Great job Dusty...we greatly appreciate the feedback and your objective point of view.