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Post by josejuan1012 on Feb 9, 2008 23:31:24 GMT -5
Hey Im thinking of ordering a 22Re supercharger kit from lcengineering any thoughts?? also i was doing some ressearch and i came across this... You can run a turbo or supercharger on a stock motor with a factory EFI unit, but you must limit the boost to 4-6 lbs.i would only be able to get about 60 horse from the supercharger  (son of a bitch) anybody know how to get around this wall  plz Help  thx in advace from peach ;D |
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Post by fourwd1 on Feb 9, 2008 23:53:03 GMT -5
It's really very simple, if you want to run more boost on a stock engine, all you have to do is rebuild it with heavy duty parts that can handle it. Forged pistons, etc., etc.
Or you could run higher boost on the stock engine, wait for it to blow up, then rebuild.
Your choice.
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rsdan
Full Member
Posts: 116
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Post by rsdan on Feb 9, 2008 23:59:03 GMT -5
60 horse from 4-6 lbs of boost? I don't think so...
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Post by josejuan1012 on Feb 14, 2008 23:50:45 GMT -5
its not about 40 to 60 horses from 4-6 pounds of boost?? i read in an article online that 1pound of boost is about 10 horsepower thats what gave my nubers... any body know how much horses in 1 pound of boost??? from peach  |
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Post by fourwd1 on Feb 15, 2008 12:03:39 GMT -5
any body know how much horses in 1 pound of boost??? A rough starting estimate to calculate HP gain is to take boost (say 5psi) and multiply it by 7% (a constant) to get your approximate power gain (in our example 35%). Why 7%? Because 7% is approximately how much more air and fuel gets into the motor with each pound of boost that is added. To get a more exact figure, take 1 psi boost and divide by normal atmospheric pressure (14.7psi at sea level). 1 divided by 14.7 equals 6.802%. Under ideal conditions, you can expect to burn 6.802% more fuel and air per pound of boost. This is the starting point, as boost rises above 5 psi, other inefficiencies kick in, so gains above 5 psi become progessively less effective in making more power. When you need to retard your ignition timing, which is often necessary when running a supercharged engine to avoid detonation, other timing inefficiencies kick in. To offset these losses, you can run a higher octane fuel or an intercooler, both of which increase your detonation threshhold and allow you to run more boost without experiencing detonation. |
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Post by nothingface5384 on Feb 17, 2008 17:41:36 GMT -5
you may also buy an methenal kit, helps with detonation...raises octane and possible powergain..downside is you might have to change your oil more often.
aftermarkert efi would be a wise choice also depending how much hp you plan to make
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