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-   -   Building a pair of new 555's (https://www.offshoreonly.com/forums/do-yourself-boating-budget/343884-building-pair-new-555s.html)

253 03-30-2017 07:53 AM

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.

snapmorgan 04-14-2017 09:21 AM

Going to the dyno this afternoon with the first one. The one with the 420 on it.

snapmorgan 04-14-2017 09:46 PM

1 Attachment(s)
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]

MILD THUNDER 04-14-2017 10:01 PM

How much boost was she making? Carbs out of the box ?

snapmorgan 04-15-2017 08:49 AM

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

MILD THUNDER 04-15-2017 08:52 AM


Originally Posted by snapmorgan (Post 4546471)
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?

mike tkach 04-15-2017 09:17 AM

first pull at 32 deg timing,i think 34 or 35 will show 40 to 50 more hp.

mike tkach 04-15-2017 09:19 AM

joe,did you install the cam straight up or advance or retard them?

MILD THUNDER 04-15-2017 09:49 AM


Originally Posted by mike tkach (Post 4546478)
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.

snapmorgan 04-15-2017 10:23 AM

Degreed it straight up. Warming her up now with 36 deg


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