I'm trying to find the right injectors for the 6.0 that I'm building. I've been looking unsuccessfully for 8.1 marine injectors. Do you think I'll need them, or would the regular 8.1 injuectors be sufficient? BTW, I will be shifting at 6K RPMs, and have no plans to go bigger in the future.

 

Check out this calculator. http://www.witchhunter.com/injectorcalc1.php4

 

Thanks for the link. Too bad it uses flywheel HP. I hoping for 400-425 to the wheels, but have no idea what it would be at the flywheel. Also, that calculator uses 43.5 PSI fuel pressure. Isn't ours 58 PSI?

 

I found this one that lets you input the fuel pressure, LINK. Would my '01 1500 be 58 PSI? Any ideas what my crank HP might be?

 

Flywheel hp is usually in the neighborhood of 20% more than rwhp, and there is a fuel pressure calculator about 3" below the injector calculator that will tell you what the flow is at 58psi.