[WhiteSnow]

The Title Perty much Says it all on one hand we have the SuperCharger that Blows boost streigt in to our Motor and Forces our Eng Compression Up but Creats so much Hp But you allso have to Up grade your Fuel System and Burn More Fuel at over 3.00$ a gal (but boy dose it sound good )
Than on the other hand we have Nitrous Kits like Zex one i am going to use for example its computer controled perty good price and it only lets you work it at Foot to the Floor and Balls to the Walls footing. I dont know if Nitrous Rase the Commpersion on your motor but i know it adds more O2 to your Fuel and makes it burn better and allso lowers the Temp in the mortor and your get more Hp form that also this kit is like 75-125hp

Now Rember Fellows this is Street App and Daily Driveing. Like a lot of us we like to dive our Cars with a "Cute lill Hottie" or a Loveing wife Maybe even both if your realy lucky on the side of ya.

What is better off on the Motor and for the Life of the car Like most people Dont want to Trash something thay spend so much time working on and keeping up this is Motors that have Forged Pistions and milded up grades like Cam intakes heads exhaust and sutff like that Post your Op please

Ps. have a happy Rice Burning shoot out this weekend i know i will

[WhiteSnow]

forgive the spelling trying to do this fast before wife wakes up and we go out trying to save some time i want to go out when the kids are ready to play hehe

[Zenmervolt]

A supercharger/turbocharger does not raise the compression in the engine. The compression ratio remains constant. A supercharger/turbocharger increases the manifold pressure.

Both systems generate the same results. Nitrous is oxygen-rich, and at higher manifold pressures, there are more oxygen molecules in a given volume of air. By increasing the amount of oxygen in the combustion chamber, both systems allow more fuel to be used. Make no mistake about it, the added power comes from more fuel being burned. When Nitrous is activated, the engine pours a LOT more fuel into the cylinders in order to maintain a proper ratio of fuel to oxygen.

Done wrong, both systems can destroy an engine quickly. If the injectors cannot keep up with the added fuel demands when nitrous is activated, the mixture spikes very lean and you can melt a piston easily. I've even seen some poorly-done nitrous systems blow the entire manifold off the engine. A poorly-done supercharger/turbocharger setup that runs more PSI than the engine can handle runs the risk of blowing head gaskets or snapping connecting rods, and again if the mixture isn't kept in the proper ratio, it can be very easy to burn a hole through a piston from detonation.

Done right, neither system will pose any longevity problems for the car.

The advantage of nitrous is price, but the disadvantage is that you have to keep re-filling the bottle and that you don't have that huge, fat midrange that a whipple or twin-screw supercharger will have, which can be really nice for everyday driving. The advantage of a whipple or twin-screw supercharger is that the extra power is always there, but the disadvantage is that it's more expensive and requires some modifications to the bottom end of the engine if you want to go for huge power; it also increases fuel consumption. A centrifugal supercharger, or a turbocharger, will not have much boost at low RPM like a whipple or twin-screw supercharger, but this also means that at cruising speed you're probably not in boost (turbochargers' boost tends to scale with throttle position), which means that at cruise you aren't being penalized by extra fuel consumption. The expense and engine modification drawbacks still apply.

What it ultimately comes down to is which set of tradeoffs you want. For drag racing only, nitrous is a great option because it's less expensive. If you're going to be racing the car on a road course, the supercharger or turbocharger is a better choice because it will be continuously providing an increase in power, rather than only at WOT.

[WhiteSnow]

thanks for the Info on my part i have helped people install them but never turned them for my self i am going to do probly a 8lb boots and a a Zex just for Show mostly sence i will be Showing my car but For my car for Street raceing I Can barly Keep traction in 2 and 3 gears if i am to the Floor so i know i am probly around the 300hp rw range would a supercharger just be more traction loss>?

[5twenty]

Originally Posted by Zenmervolt

A supercharger/turbocharger does not raise the compression in the engine. The compression ratio remains constant. A supercharger/turbocharger increases the manifold pressure.

Both systems generate the same results. Nitrous is oxygen-rich, and at higher manifold pressures, there are more oxygen molecules in a given volume of air. By increasing the amount of oxygen in the combustion chamber, both systems allow more fuel to be used. Make no mistake about it, the added power comes from more fuel being burned. When Nitrous is activated, the engine pours a LOT more fuel into the cylinders in order to maintain a proper ratio of fuel to oxygen.

Done wrong, both systems can destroy an engine quickly. If the injectors cannot keep up with the added fuel demands when nitrous is activated, the mixture spikes very lean and you can melt a piston easily. I've even seen some poorly-done nitrous systems blow the entire manifold off the engine. A poorly-done supercharger/turbocharger setup that runs more PSI than the engine can handle runs the risk of blowing head gaskets or snapping connecting rods, and again if the mixture isn't kept in the proper ratio, it can be very easy to burn a hole through a piston from detonation.

Done right, neither system will pose any longevity problems for the car.

The advantage of nitrous is price, but the disadvantage is that you have to keep re-filling the bottle and that you don't have that huge, fat midrange that a whipple or twin-screw supercharger will have, which can be really nice for everyday driving. The advantage of a whipple or twin-screw supercharger is that the extra power is always there, but the disadvantage is that it's more expensive and requires some modifications to the bottom end of the engine if you want to go for huge power; it also increases fuel consumption. A centrifugal supercharger, or a turbocharger, will not have much boost at low RPM like a whipple or twin-screw supercharger, but this also means that at cruising speed you're probably not in boost (turbochargers' boost tends to scale with throttle position), which means that at cruise you aren't being penalized by extra fuel consumption. The expense and engine modification drawbacks still apply.

What it ultimately comes down to is which set of tradeoffs you want. For drag racing only, nitrous is a great option because it's less expensive. If you're going to be racing the car on a road course, the supercharger or turbocharger is a better choice because it will be continuously providing an increase in power, rather than only at WOT.

Very well stated, Zenmervolt. I would like to clarify a point on compression. Using a SC/turbo doesn't change the bore or stroke of your engine, therefore your engine compression ratio doesn't change. However, because the A/F mixture entering your engine is compressed (more dense) compared to a naturally aspirated A/F mixture, your effective compression ratio of the A/F mixture is greatly increased, again, compared to naturally aspirated.

I'm not trying to be nit-picky, I just think people should know that using a SC/turbo or even N2O does induce a more dense A/F mixture, thereby making the compression of the A/F mix much higher than stock (naturally aspirated).

The bottom line is your engine's compression ratio does not change BUT your A/F mixture is much more compressed, which is why you get more power.