Quote:
Originally Posted by jackal2000
turbo. neither are cheap though and you cant really slap on a power adder and be good to go. probably have to upgrade internals and your transmission.
|
I agree with everything except the underlined section. You can run a power adder on a stock engine and tranny. Just have to add more fuel under boost. Tell your friends that a turbo is better for power but a supercharger is easier to install.
Turbo: Uses waste (exhaust) to spool turbo to make boost. Is a more efficient air pump than a roots supercharger and will make more power at the same boost level. Can be easily intercooled. Using a boost controller, you can easily turn up the boost as long as the fuel system can provide the extra fuel. Properly sized turbo has little to no lag and reaches peak boost early in rpm range. Requires a new exhaust manifold and downpipe, making installation a bit harder and more time consuming.
Roots Supercharger: Run off drive belts and pulleys, so it takes power to make power. Instant power, but doesn't reach peak boost until redline. To raise boost, you need to change the pulley size, which can be time consuming. Also raising boost creates hotter air, so you can only go so high before any more is ineffective. Can be intercooled using Air/Water unit, or alcohol injection, but is difficult to install. Allows for stock exhaust and manifolds to be retained, making installation quicker and easier.
So basically, a supercharger is easier to install, will give you more power and will make the car feel like it has a larger N/A engine (because it's belt driven so boost level depends on rpm). A turbo will make more power at the same boost level and sooner in the rpm range, but is a little more difficult to install.