i know what a "BAR" is, but why do turbo people use that to measure boost, while supercharger people use psi?
just seems more precise to use PSI!
-Homer
just seems more precise to use PSI!
-Homer
why do imports measure boost with "BAR" and we measure boost with "PSI?"?
- Thread starter IUP99snake
- Start date
oh, i forgot.... every other country is wrong and doesnt use inches.
-Homer
-Homer
The answer lies in the immortal words of Vincent Vega:
Vincent Vega: And you know what they call a... a... a Quarter Pounder with Cheese in Paris?
Jules: They don't call it a Quarter Pounder with cheese?
Vincent Vega: No man, they got the metric system. They wouldn't know what the f**k a Quarter Pounder is.
Vincent Vega: And you know what they call a... a... a Quarter Pounder with Cheese in Paris?
Jules: They don't call it a Quarter Pounder with cheese?
Vincent Vega: No man, they got the metric system. They wouldn't know what the f**k a Quarter Pounder is.
I think you mean import people. They think it sounds more knowledgeable. Quite frankly, it's a pain in the a$$.
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umm...actually it's cause all of our parts come from Japan...and guess what they use. It took me awile to get use to myself. But Once you figure out the conversion you get use to it.
and FYI...Did you know that GM makes their mafs as a 3bar and 5 bar? Gotta love those turbo buicks.
and FYI...Did you know that GM makes their mafs as a 3bar and 5 bar? Gotta love those turbo buicks.
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I wasn't serious. I just slapped a K&N on my beast. I hope to find you again, in high boost of course.
Dan
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Maybe yours, not mine though. ;-)
I think they measure in BAR's so you don't know they are running 29.4 PSI . It's easier to keep your highly elevated boost levels hidden from people this way.
FWIW 1 bar of atmosphere is = to 14.7 PSI.
In theory to double your cars HP, provided the intake and exhaust flow enough, you need to add 14.7 PSI
Take this one step further. If your stock $30,000 + Evo VIII makes 276 bhp on 19PSI, you'd have to run 33.7+ PSI to make 552 bhp:lol:
1997 Cobra FRPP shorties,Bassani X with cats, Vortech @ 8 PSI everything else was stock! 423 RWHP! Figuring 15% driveline loss that is 500+ bhp All this and still well under $30,000
Pounds and inches are English measurement units. All other cars are produced by countries using the metric system. Bar is the metric unit of pressure. If they used the equivalent of pounds per square inch it would be kilograms per square centimeter or something.
it all depends on the efficiency of the power adder, too...
youll probably get more power from a turbo running 14.7PSI versus a supercharger running 14.7 PSI
-Homer
youll probably get more power from a turbo running 14.7PSI versus a supercharger running 14.7 PSI
-Homer
Sort of, but, there isn't a linear gain. You would be way out of the stock turbo's efficiency range. Getting a larger turbo on that car would be the only option for serious power gains. That would enable you to run less boost, and get the same or more power.
Dan
Never said the stock turbo, just that in theory to double the power produced requires the addition of 14.7 PSI. Also a larger turbo will not necessarily mean larger power. Larger turbos need higher PSi to be efficient. It all comes down to volumetric efficiency and impeller design. Most of the time the larger turbos lend the impeller design to higher RPM's
I got stock turbo from what you said. The stock turbo, being a 16g, on a 2.0l would be spinning like 200k rpms to do 34psi. Which wouldn't be a good idea.
If we are talking about a lancer w/ another turbo, there is no point; given the infinite possibilities.
Dan
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Don't read too deeply. This was just a theoretical situation. Although I must admit I find it amusing that 19 PSI is needed to make 276 bhp.
I can assure you, from an engineer's experience (me). Experience works, theory rarley does.
nice tech info on this post. Too bad I am all about building the motor instead of forced induction. I am starting to lean towards a S/C possibly. HMMMMMMMMMM
Glad to hear that.
I agree that in theory all circumstances are almost always perfect. Which, as we all know, circumstances in real life are almost never perfect. However, theories are how we prototype things to an extent. Ideas arise about performance, which is the theory that "this part" will do this for me. So, we install said part or modify same and test our theories about it's benefit to our vehicle. I know that a theory is only as good as it's originator. That being said, this isn't my theory. It has been used by NMRA contenders and tuners for years. I was just passing it along.
So, from a moderators experience. Don't take this thread or post so literal. It is not something said to irritate or offend you. :beer:
None taken, just good conversation. :beer:
Dan
Werd. ;-) :burnout: :-D
Because they are bunch of squinty-eyed bastards
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