KDD ICON Heads - 80HP Gain w/ KC Turbos

At UCC 2023 Charlie Fish from KC Turbos stopped by the KDD booth to chat about our cylinder head product line, and how our ICON heads have handled the torture test in the KC turbos UCC race truck, but also helped to improve power, spool up, and decrease smoke!
Check them out on our website here:
killdevildiese...

[@johnnycortez46]

I have his iron heads 18mm. Bought from the garage sale KDD has. Can't wait to put them on. Wish i could have gotten those Icon heads. But maybe later. Still saving for my engine build. Can't wait. Love KDD products. The best..🤙🤙 👌

[@windstarpro]

My biggest question is about MPG. For a truck that sometimes sees occasional 1/4 mile track time, the street port heads. Is there a increase in MPG? With the increase in flow, does that mean swirl and tumble arent as good at cruise and therefore a decrease in MPG? Usually what happens with gas heads. And, I hear thats a bigger deal with diesel due to the poor atomization characteristic of diesel fuel vs gasoline.

[@Kill_Devil_Diesel]

To answer your question, the injectors in modern diesels inject the amount of fuel they’re told to inject. Due to the high injection pressure of modern diesels atomization is quite good, and the swirl is improved throughout the rpm range, so there’s no downside, these aren’t exclusively a high RPM product, they work very well, in fact they were designed for street used vehicles, it’s just a bonus that they’re tough enough to handle the 1800hp KC turbo’s drag truck. So, while it is possible to see some added mpg because the fuel is being burned more efficiently, under the same conditions etc etc, we don’t specifically market them as a fuel mileage improver just because there are so many other variables. Cylinder filling is way better across the board, meaning more oxygen content and delivered in a more efficient way, so you’ll be burning more of the fuel you’re injecting instead of leaving black smoke behind.

[@windstarpro]

@@Kill_Devil_Diesel Thank you for your very well thought out answer. I think that answered my question fully. I was initially of the opinion that the more air, the better, and it would be. Just wasnt sure if it was at the expense of swirl. I cant see any downsides to getting a set of these heads. And, if there is a improvement in swirl, and flow, then there has to be a improvement in MPG. After I get these next couple trucks done, if I can get the money together Ill test that.