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Another 5.3 turbo dyno results

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Old 06-17-2012, 10:33 AM
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Smile Another 5.3 turbo dyno results
Well the car has been together for a few months now so I figured it would be time to have Justune put it on the wheels! Its a 99 SS with a junkyard 5.3, 4l80e and circle d converter. The motor has arp head studs ls9 gaskets, arp rod bolts, a 224/224 cam, afr 205s, a victor jr with 6061 elbow and a nick willams 102. Im running e85 and a masterpower 76mm. On around 10#s put down 603hp! And on 23#s it made 790hp and 792ftlbs! I was very happy with the numbers!
Attached Thumbnails Another 5.3 turbo dyno results-dyno.jpg  
Last edited by lsx3151; 06-26-2012 at 07:33 AM.
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Old 06-17-2012, 10:39 AM
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Pics or lies.
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Old 06-17-2012, 10:45 AM
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Nice numbers!!! I want a junkyard 5.3!!!


Let's see some pics!!!
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Old 06-17-2012, 10:46 AM
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friggen crazy how well these 5.3s hold up the boost! a buddy of mine running a vic, with a 4150 style throttle body, ls7 cam hit 500rwhp and 700rwtq!!!
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Old 06-17-2012, 10:53 AM
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I will post up the dyno sheet when I get it.
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Old 06-17-2012, 10:54 AM
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thats awesome
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Old 06-17-2012, 10:56 AM
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Test with 10 psi = nice numbers. Test with more than twice that boost = crazy numbers from a JY 5.3 with let alone an auto. Congrats bro. Makes me wonder why I even bought a forged 370 to put in my car lol
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Old 06-17-2012, 11:23 AM
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Awesome results! Shows what a few good parts (good heads and cam) can do for a jy short block!
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Old 06-17-2012, 11:50 AM
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Nice results! I hope I get something similar with a 02 ls6 cam and bwS475 83mm terbine wheel and 1.10 A/R. T56
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Old 06-17-2012, 01:32 PM
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I will vouch for the numbers. Car runs its *** off, it is the old setup out of the "Red Dragon"
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Old 06-17-2012, 01:35 PM
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Originally Posted by 99Z28LS1
Test with 10 psi = nice numbers. Test with more than twice that boost = crazy numbers from a JY 5.3 with let alone an auto. Congrats bro. Makes me wonder why I even bought a forged 370 to put in my car lol
+1 to that. Amazing what people are doing with $500 junkyard motors.. my machine work cost more than that
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Old 06-17-2012, 01:39 PM
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It really is pointless to have a built motor if you plan on running under 900rwhp now days.
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Old 06-17-2012, 01:47 PM
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Damn thats impressive!
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Old 06-17-2012, 01:52 PM
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I agree so many people are hitting anywhere from 550 to 800 these days pretty easy, those 5.3s are tough lil sobs
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Old 06-17-2012, 01:53 PM
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Can we gets some pics/vids
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Old 06-17-2012, 02:52 PM
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Originally Posted by Stangkilr
It really is pointless to have a built motor if you plan on running under 900rwhp now days.
Thats signature worthy right there. Lol
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Old 06-17-2012, 03:21 PM
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makes me excited to see what i can do with the stock 5.3 and nitrous in a fox body
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Old 06-17-2012, 05:04 PM
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Man thats impressive! Congrats out of the numbers man and hope you enjoy the crap out of it!! that's awesome!
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Old 06-17-2012, 05:17 PM
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whats the spec on your cam?
good numbers btw
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Old 06-17-2012, 05:53 PM
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Nice numbers. What's your setup for your fuel system? Dual pumps? What kind? Stock fuel lines? etc..
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