HP/TQ increase from 1psi/0.069bar increase in boost pressure on stock turbo
Apr 30, 2005, 10:00 PM
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HP/TQ increase from 1psi/0.069bar increase in boost pressure on stock turbo
Does anyone know how much power/torque gain from an increase in 1psi in boost pressure on stock turbo? Is the hp/tq increase linear....e.g.....1psi = 5 hp, 3 psi = 15 hp......similar for torque? 
Apr 30, 2005, 10:09 PM
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there is no exact number.... but if 1 atmosphere (aproximately 14.7 psi) doubles your horse power over N/A I/m sure that the is an equsion some where that you could figure out what the difference would be...
If what I just said sounds like rambles, sorry, I've been drinking, PM me...
If what I just said sounds like rambles, sorry, I've been drinking, PM me...
Apr 30, 2005, 10:27 PM
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What Iceman said is 150% correct... at least, on my car playing with the boost on a dyno it was, from 12-16 psi it was about 7hp and as it got higher it went down, but even at 20-21 it was gaining ~5whp.... I dunno about torque though...
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