2.8KB with a 2.75" upper? Have questions!

[Mr.Venom]

Evening everyone,

Who's running a 2.8 KB with a 2.75" upper and stock lower? Need your experience and advice with this setup, belt slip, what boost, power, etc. Just bought the pulley and can't find much info out there.

Thanks!

 

[Quick Strike]

KB pulley chart says about 27# with that pulley on a 2.8L.

 

[Mr.Venom]

KB pulley chart says about 27# with that pulley on a 2.8L.

Not sure where you're seeing that. I'm looking at the chart right now and its 25.5 lbs on a stock crank pulley/2.75" upper.

 

[Quick Strike]

2.8KB with a 2.75" upper? Have questions!

Here: http://kennebell.net/KBWebsite/Common/pdfs/BigBore_Pulley_Boost_Ratio.pdf 26.5# or "about 27#".

 

[lucheski]

I wouldn't run a pulley smaller than 3" because of belt slip. It would be better to run a larger lower pulley