HP per extra pound of Boost?

Jackstand Queen · 09-22-2008, 03:06 PM

Does anyone have any Dyno data, or an auto-engineering calculator program for how many extra HP is gained from each extra pound of boost?

I'm having engine running problems whenever I try to use the ABV cutoff (using a T fitting in the manifold vacuum line going to the VSV then Fuel pressure regulator.

I'm on the verge of adding a separate and new outlet off the Manifold to be dedicated to the ABV.

jazzcornet · 09-22-2008, 03:51 PM

the rule of thumb is 8-10whp per psi. but dont bench race, go out there and find out for yourself

alamoryan · 09-22-2008, 05:28 PM

I have seen anywhere from 8-18 per lb of boost. lower spectrum on smaller engine of course larger end of the spectrum on bigger engines.
my mr2 13.46 per lb of boost 2.18 liter engine
shop supra 40.47 per lb of boost with 1400 wheel hp 3.44 liter engine grated this car also has a 200 shot to help spool the turbo

09-22-2008, 03:06 PM	#1 (permalink)
Jackstand Queen Cage Fighter Join Date: May 2008 Posts: 677 Thanks: 52 Thanked 56 Times in 53 Posts iTrader Rating: (1/100% )	HP per extra pound of Boost? Does anyone have any Dyno data, or an auto-engineering calculator program for how many extra HP is gained from each extra pound of boost? I'm having engine running problems whenever I try to use the ABV cutoff (using a T fitting in the manifold vacuum line going to the VSV then Fuel pressure regulator. I'm on the verge of adding a separate and new outlet off the Manifold to be dedicated to the ABV.

09-22-2008, 05:28 PM	#3 (permalink)
alamoryan will it ever end? Join Date: May 2008 Location: Grapevine, Tx Posts: 75 Thanks: 0 Thanked 5 Times in 5 Posts iTrader Rating: (1/100% )	I have seen anywhere from 8-18 per lb of boost. lower spectrum on smaller engine of course larger end of the spectrum on bigger engines. my mr2 13.46 per lb of boost 2.18 liter engine shop supra 40.47 per lb of boost with 1400 wheel hp 3.44 liter engine grated this car also has a 200 shot to help spool the turbo Attached Thumbnails

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09-22-2008, 03:51 PM	#2 (permalink)
jazzcornet Gi_Shu_Som Powdercoating Join Date: Nov 2006 Location: newport news, va Posts: 1,683 Thanks: 19 Thanked 60 Times in 50 Posts My Google Map iTrader Rating: (15/100% )	the rule of thumb is 8-10whp per psi. but dont bench race, go out there and find out for yourself