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| super six revs. https://slantsix.org/forum/viewtopic.php?t=19278 |
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| Author: | moxie5 [ Mon Aug 21, 2006 9:03 am ] |
| Post subject: | super six revs. |
I know this has been covered many times before, but i can't find it so...What is the maximum rpm for a super-six 225? Mine is in a lobster boat, and i need to do the math for the right prop. Thanks Gray |
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| Author: | Sam Powell [ Mon Aug 21, 2006 9:28 am ] |
| Post subject: | |
Would you run it right at the red line, or some percentage below that? I figured 5K to be about tops with my car when it had a stock slant with a super six set up. If I were putting it in a boat, I would probably feel most comfortable running it at a steady 4500. What cam do you have in it? Marine cams are usually fround for higher RPM. Sam |
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| Author: | moxie5 [ Mon Aug 21, 2006 11:57 am ] |
| Post subject: | slant six revs |
Sam, Thanks for your reply, No, I don't plan to run it a constant maximum, i just needed to hear what the recommended max was. I probably will prop it so that my max cruise will be about 3500 or so. I just didn't want to load the engine too much. I don't know about the cam, I assumed that it is a standard cam, nothing special. Gray |
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| Author: | Dart270 [ Mon Aug 21, 2006 12:34 pm ] |
| Post subject: | |
3500 steady will be absolutely no problem, and will be near what the motor's max HP is at. Lou |
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| Author: | moxie5 [ Wed Aug 23, 2006 12:14 pm ] |
| Post subject: | slant six revs |
Lou, Thanks, that's what i was looking for. 3500 sounds good to me too. What HP @ 3500 do you figure? Someone told me about 150, but i'll bet it's closer to 110. Gray |
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| Author: | Dart270 [ Wed Aug 23, 2006 2:35 pm ] |
| Post subject: | |
110HP is a good realistic guess, unless it is really tuned up (optimized cam timing, ignition timing, carb), or on the other hand, it runs poorly. Lou |
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