theimpaler
10+ year member
Member
Off topic (as if thats something new) acura/honda is supposed to be coming out with a v8 for the nsx in '05. Should be interesting to see what kind of output that has.
Okay, if this is how it IS. Explain to me why a MCLaren Mercedes, a car developed on the autobahn has a twin SMALL turbo rather than a single BIG turbo. Or perhaps any of the Italian sports cars with twin turbos. The fact is that the size of the turbo does matter how much overall boost it can put out, but the fact is that the size doesnt matter when it comes to how fast boost is accumulated. If the path the air travels from the impeller to the intake manifold is shorter on a large turbo the boost will be created at an earlier RPM than a small turbo with the longer path. It all depends on the legnth the air has to travel from the turbo to the combustion chamber, period. For instance, a air to air intercooler is known to not have as much lag as a air to water simply due to the legnth of piping ect. Think about it? Is the air going to get to the motor faster on a WRX(right under the scoop) or a Lancer (front mount). The WRX's because the air doesnt do a lap around the front end. The air to air wont make as much power b/c its less dense compared to the air to water. Now that I mention it a Lancer has a Big 16 which is the same turbo eclipses have except for a larger housing and impeller, and it produces more power earlier than the eclipse.Ok, I don't know whether this has been established yet or not, but this is how it IS!A big turbo takes higher RPM's to create boost but creates WAY more boost than a small one ever will, but a small turbo takes less rpms to have boost output. This is why people replace the two smaller turbos on Supras with one big one because at a certian rpm, the smaller turbos become inneffective. They replace it because the stock turbos are designed to give the car more power at lower/midrange rpms for street driving. (so you don't have to wind it out like a weed eater) Big RACING turbos on a car such as a Supra or a Honda provide almost exponential power figues a 6000 plus rpm, because the boost provided at those rpms is huge. Provided with that information, one could come to the conclusion that...
Big turbo needs alot of rpm to go around, when it does... WOO HOO!
Little turbo, doens't need much rpm, Woo hoo kina sorta all the time.
i just wanted to add, why do most top fuel cars now run turbos instead of superchargers? so before u diss the turbo and say supercharging is better, u dont know ****, i know a kid with a supercharged del sol and its slow as hellNo no no no. Do you have any idea how much power top fuel cars make? Why the hell would they turbocharge it? Do you know how large a turbo would have to be to make the same kind of power a top fuel car makes? That turbo would be the size of a watermelon and crank out more heat than the sun. And turbos are not always the best for everything. Ever heard of a thing called turbo lag? Your just trying to knock everything that you don't like.
EDIT: And another thing, top fuel cars don't have transmissions.....ass.
You just couldnt let this thread die could you.i just wanted to add, why do most top fuel cars now run turbos instead of superchargers? so before u diss the turbo and say supercharging is better, u dont know ****, i know a kid with a supercharged del sol and its slow as hell
Once again show me some proof. I don't need to do research because i know it's not happening. I'm not gonna waste my time to support your claim.why dont u do some research and see that most are using 4 turbos instead of a supercharger. But i will say u are right that it depends on the motor, but superchargers are goin out
I'll read it, but i still want to see a turbo top fuel car.
It's all relative, of course, and those are good points. I'm not personally familiar with many cars, but have studied some of the basics of turbos, and no one had actually come out and said anything difinitive, just beat around the bush and bragged about how stupid everyone else was. For example, the Mercedes probably uses twin small turbos because it needs help in the low end. Just think about it a bit. A smaller impeller needs less force to get to speed, and yes as you mentioned it depends also on where the air is getting drawn through etc, and it will put out its max psi sooner, but wont be as high as a bigger turbo. That's all i have to say, so if you want to quote me and try to argue you need seriousOkay, if this is how it IS. Explain to me why a MCLaren Mercedes, a car developed on the autobahn has a twin SMALL turbo rather than a single BIG turbo. Or perhaps any of the Italian sports cars with twin turbos. The fact is that the size of the turbo does matter how much overall boost it can put out, but the fact is that the size doesnt matter when it comes to how fast boost is accumulated. If the path the air travels from the impeller to the intake manifold is shorter on a large turbo the boost will be created at an earlier RPM than a small turbo with the longer path. It all depends on the legnth the air has to travel from the turbo to the combustion chamber, period. For instance, a air to air intercooler is known to not have as much lag as a air to water simply due to the legnth of piping ect. Think about it? Is the air going to get to the motor faster on a WRX(right under the scoop) or a Lancer (front mount). The WRX's because the air doesnt do a lap around the front end. The air to air wont make as much power b/c its less dense compared to the air to water. Now that I mention it a Lancer has a Big 16 which is the same turbo eclipses have except for a larger housing and impeller, and it produces more power earlier than the eclipse.