Estimate of RWHP per additional lbs. of boost

[falcon50]

My Terminator with a 2.6H Kenny Bell made 590 rwhp at 18 psi. Unless my boost gauge is wrong I make 22 psi. If that is right, how much more rwhp might I be making?

 

[04cobra88]

My tuner told me to expect about 30 per 2 ilbs of boost , I have no proof of this though .

He's a pretty well known svt member and great remote tuner !

 

[NastyNate420]

TAKEN FROM LEN SCHIMDT on Corral

Good question. Here is how I see it 14.7 is air pressure around you all the time and your engine NA makes "X" hp, so if you add say 10 psi you add (lets use a 200 hp na engine to make this easy), so in total your engine is getting 24.7 or 1.68 time the amount it would see na so:
200 X 1.68 = 336 hp
or another way is na plus the percent extra:
200 + (200 * (10/14.7)) = 336 hp
bump it up a 1 psi
200 + (200 * (11/14.7)) = 350 hp
So one psi on a 200 hp na car is worth 14 hp
This is all at sea level of course in a perfect world.
Should get you close anyway.
Len

 

[GodStang]

We typically see 10-15 rwhp per lb of boost on our cars UNLESS we start passing the efficientecy of the blower then you create heat and pull timing and numbers dive.

 

[falcon50]

We typically see 10-15 rwhp per lb of boost on our cars UNLESS we start passing the efficientecy of the blower then you create heat and pull timing and numbers dive.

Thanks so much for the quick replies.