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Sure Start Bashing

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Old 08-20-2006, 05:24 PM
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skaliwag
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Default Sure Start Bashing

What to do on a Sunday afternoon.... ?
Put a TD N/V and Venturi on the back of a Sure Start.
Was it worth it? No really.. 13.7K on the 6 X 3.. 15.4K on a 5 X 3. 27% nitro.
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Old 08-20-2006, 08:52 PM
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combatpigg
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Default RE: Sure Start Bashing

what did it baseline at stock?
Old 08-20-2006, 09:09 PM
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skaliwag
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Default RE: Sure Start Bashing

It was a Virgin I pulled out of the box, took the back of and started 'a-Dremelin'. PM your Snail Mail and I will send the back end for evaluation.
Old 08-20-2006, 09:22 PM
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Default RE: Sure Start Bashing

I did the same thing to a 290 some years back for a contest free flight engine. Didn't get a chance to test it each way but it sure LOOKS strong...

It would be easy enough to test this one. Just need a stock backplate and a tach.
Old 08-20-2006, 09:39 PM
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combatpigg
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Default RE: Sure Start Bashing

Skaliwag, If you were able to maintain a smooth, continuous run, all the way to the reed, then I would just hang onto it until you get a better matched piston and liner. If the passageway isn't clean, then the idea would never work, it would be too turbulent. I can think of no reason why this idea would not work with the right combination of parts. I'm not "deep" enough with COX parts to do much with it. Thanks for the offer, though!

Old 08-20-2006, 11:38 PM
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burtcs
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Default RE: Sure Start Bashing

skaliwag:

I got four Sure Starts and all four of them do 18,500 RPM with a Galbreath head and Nelson glow plug. They had no taper to the cylinders and were running 6-2 APC props on 35% nitro. Last week I lost a Reed Valve at 20+k. It broke the crank journal after many free flight runs. I was kind of proud of it.

HTH - Steve B.

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