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Old 01-18-2011, 09:11 PM
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Default Manifolds to CMI

Had the opportunity to pick up a CMI set up for a pretty sweet deal. Currently have manifolds wondering what difference if any that I'll notice switching to the CMI's.
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Old 01-18-2011, 09:56 PM
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built in water injection!
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Old 01-19-2011, 12:52 AM
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Thta would depend on what manifolds you have, what CMI's you got and how much power you are running. On a 500hp engine, I doubt you'll see a difference.
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Old 01-19-2011, 07:14 AM
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Originally Posted by vette131
built in water injection!
No doubt. With all the problems CMI has had with grenading engines due to their leaky tin cans, there's no way I would go out and buy a set to put on my boat! If I were buying a replacement set, I'd go with SM.
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Old 01-19-2011, 08:33 AM
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CMI... too many problems being reported.
What do you have now, Imco powerflow?
If you were to upgrade to anything w/ your 650+hp, it'd be to a Stainless Marine Gen III.
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Old 01-19-2011, 11:40 AM
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I believe they're Etops and I was able to get rid of an item worth about half the price of the CMI's I traded for. If they're not worth putting on, I'll sell them.
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Old 01-19-2011, 11:41 AM
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Originally Posted by Griff
Thta would depend on what manifolds you have, what CMI's you got and how much power you are running. On a 500hp engine, I doubt you'll see a difference.
546ci 650hp(ish).
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Old 01-19-2011, 11:46 AM
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From the vid in your signature, it looks like you have Gils. You should gain a little bit with the E Tops and your HP. If I had to guess, I'd say maybe 20hp.
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Old 01-19-2011, 12:15 PM
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If I see CMI's on a boat, I look at them as a liability.

They look great and make some power, but they're pretty expensive and ticking time-bombs!
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Old 01-19-2011, 04:07 PM
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I've had Gil manifolds crack, but my CMI's have never had problems.
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