Procharger Hemi 5.7

[Kraftei]

I had a 3.5 pulley & belt installed and a 400 lph fuel pump. Redyno'd with 94 octane and the lift kit. They could only go 4th gear because of the tire size. There was a hot start issue that they were able to resolve as well. 450 rwhp with a safe tune.

 

[Wild one]

I had a 3.5 pulley & belt installed and a 400 lph fuel pump. Redyno'd with 94 octane and the lift kit. They could only go 4th gear because of the tire size. There was a hot start issue that they were able to resolve as well. 450 rwhp with a safe tune.

View attachment 230396

Those are pretty good numbers for a soft tune-up.The little truck is a bit of a sleeper,lol.

 

[James OBrien]

Not bad! How much boost were you running?

 

[Kraftei]

Not bad! How much boost were you running?

You can see the boost charted at the bottom rh of the graph, about 7 psi. Previous to the pulley change it was around 5 psi. The ProCharger kit was supposed to produce 7 psi hence why I changed the pulley to get me there. I guess the lesson with superchargers is you still need to tune and possibly change the pulley... after install.

 

[James OBrien]

Thanks for that, on my setup I’m hitting about 7-8 PSI at 6K RPM but have the stock pulley on a torqstorm.

 

[Kraftei]

Thanks for that, on my setup I’m hitting about 7-8 PSI at 6K RPM but have the stock pulley on a torqstorm.

What are you running for hp ? What mods do you have ?

 

[James OBrien]

What are you running for hp ? What mods do you have ?

I was running about 500 WHP dyno'd, on a pretty conservative 91 octane tune before I really got things dialed in. I'm running ARH 1 7/8" catless headers with a true dual exhaust, the torqstorm, and lots of other supporting mods. Also running Jay's .5HL cam and upgraded valve train. Right now the motor is at a local engine shop waiting to be bored out get and a forged rotating assembly, stroked to 392.