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Thread: Fresh engine and Fuel Injection
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11-27-2005 #1
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Fresh engine and Fuel Injection
I have a freshly rebuilt 401 Nailhead that I plan on running a commander 950 TBI system on, would it be wise to start and do the initial break in of the engine with a carb????
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11-27-2005 #2
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Short answer:
Yes.
Andrew1970 GTO Version 3.0
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11-30-2005 #3
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long answer:
yes
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12-01-2005 #4
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Are you talking about a brand new engine in general or a brand new engine with an uncalibrated ECM?
I have been careful of this issue as I have heard the rich mixtures from efi systems can wash the rings out. I usually use a plagarized calibration from a similar engine as a start point.
I am concerned about this now as I will be firing up my 540 soon, and I have to depend on Accel's calibration builder to get me started. Will Calmap get me close enough to fire the engine safely?
12-01-2005 #5
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If you have an experienced efi tuner or are one, and are careful not a big deal IMO.
If you have never tuned FI, then starting on fresh motor probably isn't good idea.
12-01-2005 #6
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Thanks for the responses guys, i have NO experience with efi, and kind of figured it would be better to break in a fresh engine with the original carb,, just kind of fishin for idea's and other thoughts!!!! Thanks
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