Roots or Centrifugal?

[86BLACKT]

A friend of mine is going to supercharge his Cadilac CTS-V. What are the pros and cons of roots vs. centrifugal chargers.

Thanks
Rich

 

[TRYMY231S]

Roots is instant response. Think lots of added torque and some horsepower.

Centrifigal's boost is RPM specific so it takes a little longer to build boost. Less torque and more horspower.

Twin screw is also instant response. Think of it as a compromise between the previous two.

What does he want the car for? That's what it all comes down to.

I say go turbo.

EDIT: I just saw that it was for a CTS-V. Don't they have a lot of compression stock? You might want to consider a wet shot (a bunch of my buddies have LS1's and nitrous is what they swear by).

 

[86BLACKT]

He has a Lingenfelter 383 in his vette that puts 500 to the ground. He wants a smooth torque curve with a lot of power and money doesn't appear to be an issue.....must be nice!!!!
I mentioned nos, he wasn't interested. The car burns the tires at will now off the line.

Thanks

Rich

 

[TRYMY231S]

Originally posted by 86BLACKT
He wants a smooth torque curve with a lot of power

Sounds like he's asking for a turbo.