[halfbreed]

whats the difference between the 4bt 4b 4bta anything major sorry for the newbie question just wondering

 

[BobS]

4=number of cylinders
B=Cummins engine series
T=turbocharger
A=aftercooler

 

[halfbreed]

4=number of cylinders
B=Cummins engine series
T=turbocharger
A=aftercooler

thanks sums it up perfect

 

[tndonor]

Turbo will add forced induction to the motor

An aftercooler will drop the temperature of the air charge to the intake thus increasing the power potential. Cooler air is denser and has more oxygen than hot air.