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How much HP from 1 bar spring

Just curious, all things being equal,, with the only upgrade being a 1 bar spring. What would the increase in HP be ??
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"Todd"
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Old 03-09-2010, 07:29 AM
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I've heard approx 20hp?
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Old 03-09-2010, 08:55 AM
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Crotchety Old Bastard
 
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It depends on the mods. If the engine doesn't flow well then less power.
I use 15HP/0.1bar as a conservative rule of thumb.
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Old 03-09-2010, 08:58 AM
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If you have a K27 I wouldn't bother going over .9 bar.
The factory only took the late model 3.3 turbo engine to .9 bar for a reason: 1 bar put the K27 over the choke line, so that really hot air was being fed to the engine.
I know this to be true because with my car the feeling of going between .8 and .9 bar is better than between .9 bar and 1 bar.
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Old 03-09-2010, 11:49 AM
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If you are going from a true .8 bar to 1 bar you can make up to 11% more power based on the math (.2/1.8=11%).

However, as others have noted there are things that will make it less as efficiencies fall off.
Old 03-09-2010, 07:53 PM
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Not enough compare to the $s it might cost you, if that's all you do - just the spring.
Old 03-10-2010, 02:55 PM
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