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boat lost spped after chiller installed 575Sci's

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Old 05-03-2010 | 12:20 AM
  #11  
tunertech
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Default extra fuel
cooler air density has changed in the intake resulting in richer charge as well as mild restriction
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Old 05-03-2010 | 01:40 AM
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Originally Posted by 29Fever575sci
Did he change anything else? 5100 before and 5100 after should equal the same speed with the rest of the boat being the same.
The ECU does need to be changed.
Agreed......... assuming he did not change props.

The problem may be the location of the chiller water pick ups. Aerated water could be causing prop cavitation and higher propslip numbers.
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Old 05-03-2010 | 06:40 AM
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smiklos@sunprint
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How deep are the new pickups?
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Old 05-03-2010 | 06:44 AM
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Steve,
You may be on to something there
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Old 05-03-2010 | 07:02 PM
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Did he change anything else? 5100 before and 5100 after should equal the same speed with the rest of the boat being the same.

Sounds like a lot of over engineering going on here!
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Old 05-03-2010 | 07:08 PM
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Originally Posted by tunertech
cooler air density has changed in the intake resulting in richer charge as well as mild restriction
I know a guy who can fix that.
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