Boost is simply a measure of restriction
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I'm moving someplace WAY below sealevel... that way i can make more boost than everyone else... and I'll set up a dyno and not correct any numbers... that way i'm sure i'll hit 1000 rwhp on #2 with the 7.3!!! :ford:
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:redspotdance:Hell boy, if your gonna go to all that trouble just put a hose from the outlet on the spider to the inlet. You go putting marbles in the IC your truck will weigh more and counter act the added horsepower you gained by not running the thing.
Dan
Dan
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620 Posts
Isn't that how Danny does it?
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So if you install a set of B codes and the boost goes up, no power is gained? Boost allows you to cram more fuel and air into the cylinder.
Is that not true?
Is that not true?
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i believe greg is talking about when all other things are equal. more boost does not always equal more power.
Higher boost does not always mean that more air is being moved. If the compressor is out of it's higher efficiency islands then the compressor discharge temperatures are extremely high boost pressure will go up, but the same or less air is being moved.
To some degree pressure is a measure of restriction, but in the case of turbocharging it isn't that simple or static.
The engine presents a relatively fixed level of restriction based on some things like engine RPM (there are others, but we'll keep it simple for the sake of discussion). So if at 2500 RPM you have 25 psi of boost at 500 CFM and you put different turbo on that can move 850 CFM of air at the same engine RPM but do so with less compressor temperature and you are making 20 psi of boost you are still better off since you are getting more air in the engine at 20psi than you were at 25psi.
How many people here know how boost is created? No, this is not a trick question.
To some degree pressure is a measure of restriction, but in the case of turbocharging it isn't that simple or static.
The engine presents a relatively fixed level of restriction based on some things like engine RPM (there are others, but we'll keep it simple for the sake of discussion). So if at 2500 RPM you have 25 psi of boost at 500 CFM and you put different turbo on that can move 850 CFM of air at the same engine RPM but do so with less compressor temperature and you are making 20 psi of boost you are still better off since you are getting more air in the engine at 20psi than you were at 25psi.
How many people here know how boost is created? No, this is not a trick question.
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Please explain. It has been a long time since schooling. If nothing else it will be good for the archives.
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Wouldn't an intercooler that weighs twice as much than an equally efficient intercooler that weighs half as much be the same as adding the marbles??
One other thing is it possible to add so much boost that you lean the engine out and split it in half
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That would be too much preasure, would'nt it? Boost is made by the cyn trifical force generated by spinging a fan at high speed. The inlet is at the center, air moving outward pulls air in creating vacume. When was the last time you were on a merry go round ? I remember trying to hang on but allwas ended up getting spit off the damn thing when someone would sping it faster than hell. And David, I have seen tractor pullers blow everything from the crank case up off due to over preasure, someone told me those guys will build something like 200# preasure. Of corse we're talking 4 turbos.
Dan
Dan
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Yes, I have seen those pics, but the question is why??
Surely a mere 200psi of boost is not going to split a block is it??
Surely a mere 200psi of boost is not going to split a block is it??
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Gravety!! It could be more that 200#, those guys are nuts. Ive looked at the set ups they run pretty damn cool I must say, The fair is comming. Now i'm all excited, friday night NTPA Fullton county Fair, gotta love the smell of horse power! LOL:redspotdance::swordfight:
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