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B-1 PSO Dyno Test - Updated Pictures
#468841
09/15/09 12:11 PM
09/15/09 12:11 PM
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Joined: Nov 2003
Posts: 399
SouthEast Michigan
PETE@BESTMACHINE
OP
enthusiast
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OP
enthusiast
Joined: Nov 2003
Posts: 399
SouthEast Michigan
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I finally finished my 588 (4.500X4.625) with the PSO Heads. It has a Custom 55mm camshaft 285/300 at .050 with .954 lift and 15 to 1 compression. I used an old Mega block I have had for a while. I used the new Quick Fuel QFX 1050 carbs. John Marcella built the tunnel ram manifold. The Heads are the first ones I did a long time ago and are a little different than the improved ones we have now. I used a Peterson 5 stage dry oiling system with a Charlie’s pan. The oil pressure was too high for the RPM of the engine and we started moving the cam with positive results. The first pull from 6-7 thousand RPM it made 1099 HP. The Dyno starter failed and ended our day early; it was still making more power on every pull. I know there’s still 20HP there.
Last edited by PETE@BESTMACHINE; 10/12/09 07:12 PM.
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Re: B-1 PSO Dyno Test
[Re: Hemiroid]
#468851
09/15/09 01:29 PM
09/15/09 01:29 PM
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Joined: Jan 2003
Posts: 2,915
A shed in England
Tig
master
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master
Joined: Jan 2003
Posts: 2,915
A shed in England
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Fantastic!!  Maybe I don't need to buy that procharger after all 
'74 Challenger..9.46 @ 145.9 1/4, 6.001 @ 118 1/8 so far. 4023lb !!! # N/A, Marsh performance 655ci, Indy Maxx, T/R, Indy 600-13 X's, Street legal, pump gas, full interior, Cal-Tracs, mufflers, 3:73's and real 10.5 radials.
9.51 @ 142.4 1/4, 6.003 @ 114 1/8 with our old mule KB, 572-13, 580 wedge.
RHD '68 Barracuda Fastback 323ci street/strip. Best ET 13.88 @ 99.03
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Re: B-1 PSO Dyno Test
[Re: Big B]
#468856
09/15/09 03:05 PM
09/15/09 03:05 PM
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Joined: Apr 2007
Posts: 2,026
Trumbull,CT.
jim sciortino
top fuel
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top fuel
Joined: Apr 2007
Posts: 2,026
Trumbull,CT.
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Pick up 20 and you'll be right around 1200. Awesome power for a straight head. I wonder what it would do with one of your new castings in a full max N/A effort??? Are you going to fix the dyno and run it again up to 8500 or so??? And is the A/F lean or is it just me??? 
Last edited by jim sciortino; 09/15/09 03:11 PM.
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Re: B-1 PSO Dyno Test
[Re: Bob_Coomer]
#468859
09/15/09 03:59 PM
09/15/09 03:59 PM
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Joined: Apr 2007
Posts: 2,026
Trumbull,CT.
jim sciortino
top fuel
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top fuel
Joined: Apr 2007
Posts: 2,026
Trumbull,CT.
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Quote:
Quote:
Pick up 20 and you'll be right around 1200.
Awesome power for a straight head. I wonder what it would do with one of your new castings in a full max N/A effort???
Are you going to fix the dyno and run it again up to 8500 or so??? And is the A/F lean or is it just me???
You wouldnt call this a max effort N/A effort?
Good numbers, nice going Pete..
Bob Coomer from Ky
I've seen engines with 17+ compression, well over an inch lift and ring stacks from hell, insanely light cranks and bob weights, among other "tricks". I don't know whats in this engine other than whats listed and whats listed in not on kill. Plus he said the newer PSO head is a better deal....so no, I wouldn't call this max effort.
Killer, but not an "on the edge" deal.
Would youc call it a max build??? 
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