Interesting Dyno Data

First-Hand Experience With HP Gains From Additive

Posted January 23 2009 02:30 PM by Mike McGlothlin
Filed under: Reviews, Diesel Observations

While we’ve been told this only works in “lower” horsepower trucks, I witnessed a horsepower and torque gain on a dyno last month by doing it with an older Dodge…

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The product we saw in action was Stanadyne’s Performance formula diesel additive.

I didn’t think it would make a difference, but once added to the truck’s fuel tank in between dyno runs, and allowed to sit and idle for 5-10 minutes, which apparently gave it enough time to stir, we made 7 more hp and 15 more lb-ft. Then, subsequent pulls on the dyno backed up our new numbers.

So, if you’re in the beginning stages of the “diesel performance bug,” and want to see if you can squeeze a few more ponies out of your 250-350 hp rig, try some additive. And, of course, let us know which additive you used, as well as if it does anything for you.

According to this PDF, Stanadyne is spot-on with their claimed hp gains:
http://www.stanadyne.com/docs/puba/Perform%20Brochure.pdf
(page 3 of PDF)

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Reader Comments:

1. sweet

scuba387 - Posted January 29 2009 12:02 PM

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