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Building a pair of new 555's

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Old 03-30-2017, 07:53 AM
  #31  
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That baby is lookin good, let me know when going to the Dyno, I want to go watch
I can bring the Carb's , I left Ken a message but haven't head back from him.,you may want to call him.
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Old 04-14-2017, 09:21 AM
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Going to the dyno this afternoon with the first one. The one with the 420 on it.
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Old 04-14-2017, 09:46 PM
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Got on the dyno late this afternoon. After getting a few bugs worked out, we got to make 1 pull before calling it quits for tonight. Will start back in the morning and see where we end up. Here is the sheet from the one and only pull today[ATTACH=CONFIG]566358[/ATTACH]
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File Type: pdf
dyno sheet first pull.pdf (335.4 KB, 127 views)
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Old 04-14-2017, 10:01 PM
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How much boost was she making? Carbs out of the box ?
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Old 04-15-2017, 08:49 AM
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Carbs work done by Ken Jones performance here in Walnut Hill Illinois. Making 9 pounds of boost. I am probably going to need more carb
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Old 04-15-2017, 08:52 AM
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Originally Posted by snapmorgan
Carbs work done by Ken Jones performance here in Walnut Hill Illinois. Making 9 pounds of boost. I am probably going to need more carb
Dam, 9lbs and not even at 800hp? Something seems amiss big time. Your combo should be making more than that, quite a bit more than that.

What pulley ratio are you at?
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Old 04-15-2017, 09:17 AM
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first pull at 32 deg timing,i think 34 or 35 will show 40 to 50 more hp.
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Old 04-15-2017, 09:19 AM
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joe,did you install the cam straight up or advance or retard them?
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Old 04-15-2017, 09:49 AM
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Originally Posted by mike tkach
joe,did you install the cam straight up or advance or retard them?
Does seem like shes running out of steam early for that combo.
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Old 04-15-2017, 10:23 AM
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Degreed it straight up. Warming her up now with 36 deg
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