Am looking to get a supercharger which one do you all recommend? I am looking at the roush or the whipple. What is the biggest difference?

 

You will love either. I prefer the Whipple. It's parastatic losses are less and it runs cooler. This gives you about 20 more rwhp at 8psi. This number only increases with boost. Here is a quick example with some numbers from Troyer to help show work performed by the motor.

A Roush blower set up at 10-11psi with headers, 2.5" duals, 80mm throttle body, x-pipe, ported blower and intake, and efans will land you in the 420-440 rwhp range. 420rwhp with 35-37" tires. Closer to 440rwhp with smaller wheels n tires. This setup burns 6.1 lbs of fuel per minute at WOT. By comparision my Whipple not ported, no efans, stock throttle body, but otherwise setup the same as above made the same power with 8.2psi of boost and but only burned 5.2lbs of fuel. (Fun fact: a naturally aspirated 5.4 burns 2.8 lbs of fuel per minute to produce around 202rwhp.)

A year later I returned to Troyer this time with efans and 12.45psi, efans, and an 80mm throttle body. This time she laid down 475rwhp and burned 6.1lbs of fuel per minute at WOT. Same fuel burn as the Roush at 10-11psi and lots more power.

A common thought is that the Roush will be safer as it is not producing as high a hp. This is incorrect. Fuel burn is a direct indication of the work and stress your crank, rods, and pistons are enduring. As you can see above both engines are under the same stress but making different power at the wheels. The increased fuel burn on the Roush shows the higher paristatic losses. It takes more energy to turn and produces more heat. This is energy that could be going to the rear wheels.

All of this aside though you will be thrilled with either. They both produce amazing torque off idle through the midrange. The Whipple continues pull all the way the redline (see the link in my sig). Depending on money you may want to hunt for a used kit. They pop up now and then and can save you $1500. Hope this helps. Now get boosted!!

 

Are they hard to install? Do I have to tap into my oil pan?

 

No fairly easy to install. Oil pan tapping is long gone. The units have their own oil and it gets changed every 100,000 miles.

 

I prefer kenne bell, I love them and personally run one in my car and they are the most efficient blower you can buy, I would stay away from the eaton based blowers(like the roush) they aren't that efficient and result in high intake air temps which cause detonation

 

So when I order the kit it comes with everything I need or will I need to purchase other items?

 

Kenne Bell and Whipple are both twinscrew blowers. Kenne Bell does not make a blower for our trucks. There is nothing like the twinscrews!!

 

Kits come with everything. I suggest adding 39lb injectors to the Whipple kit though. They use the stock injectors and increase fuel pressure to make the injectors behave like larger ones. While this is approved by Ford I strongly disagree with it. Also get a custom tune with any of the kits. The tunes that come with them are weak and unrefined.

 

Roger that!

 

Cool! Another supetcharged truck.