Will running 10psi on the Drag kit create more stress on the internals of my ls engine then running 10 psi on a greddy kit??

 

no

 

thanx..here's a bump

 

it will make more power.

 

why?? isn't the t3/t4 almost the same turbo from garrett when compared to an 18g from mitsu?

 

depends on trim and size....
some t3/t4 would probably put out the same power...but most will push more power. not to say the 18 g cant make power,,cause it can

 

sweet, i thought i was right

 

There are three important variables when it comes to a turbo: the pressure ,flowrate, and temperature of the air charge. With regard to the first two factors...

People ask why those stupid electric fans on ebay won't work to boost because they are rated at whatever, say 50 psi. The reason is that it may be able to provide 50 psi of pressure when you blow it into a pipe that's closed at the other end. But try putting a hard working high revving engine on the other end that is sucking air like there is no tomorrow. It can't supply the flow at that pressure. Your pressure when you hook it up to a screaming honda engine will be like 0.1 psi.

It's like a battery, you can go to the store and hook up 9 D cell batteries in series and get 12 volts. But you can't start a car with that because it can't supply the current and once you hook it up to a starter motor, the voltage is going to drop way down.

So when you say both turbos can boost to 10 psi you have to be more specific. Can both of them boost to 10 psi throughout the usable RPM range of the engine, that is to say can they supply the flow of air at that pressure to satisfy the engine's need.

Most likely one will be able to reach 10 psi sooner than the other but won't be able to flow the air to supply the engine at higher RPM without heating the air charge up more.

 

filetofit is right on the money. The third component that wasn't expanded on (thermal management) is at least as critical as the other two. The reason? A smaller compressor will likely heat the charge more than a larger compressor... so even if both wheels can produce 10 psi throughout the desired rev range, one will be less efficient at it--this wheel will make less power and put more thermal stress on the engine, and (gulp!) be more likely to detonate.

To sum it up: 10 psi does not always equal 10 psi. It's ALL about thermal management.

 

Thanks guys, i really appreciate it!!!