Centrifugal Issue While Cruising

[Mattstang04]

Every once in a while, while cruising at highway speeds, the car will buck as if fuel or spark went out for just and instant. The problem only occurs after cruising for 15 to 20 minutes and doesnt happen all the time. There is no real stumble and difficulty recovering, just a single buck and she's right back to normal. I don't get it. Not that its a huge problem but it never did this before being supercharged. I'd like to correct it before or if it becomes a real problem. Anyone else experienced this?

 

[3ponyshow]

I used to run 91 octane for long drives and that would happen on occasion with my old tune. It was a fuel issue and I could actually see it on the DBC.

 

[Mattstang04]

Im already running 93 octane fuel. Did you have to get a new tune?

 

[3ponyshow]

I had to get a new tune because it turned out my pumps were running at 100% duty cycle. My point being I think it's a fuel issue as that sounds very similar to what was happening to me if I ran on a substandard gas. Regardless of your tune, it may have to do with a particular brand gas if it's that inconsistent.