Dumb question?
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Stellar HDF Member
Joined: Dec 2009
Posts: 2,913
Likes: 2,542
Dumb question?
Greetings my friends, dumb question perhaps. Really not my area of expertise that's why I'm asking. Come rebuild time, would this require a tune. or will the O2 sensors still maintain AFR? Thanks for your replies on advance.
https://www.sscycle.com/products/110...wrinkle-black/
https://www.sscycle.com/products/110...wrinkle-black/
Seasoned HDF Member
Joined: Sep 2008
Posts: 14,144
Likes: 11,219
From: San Diego, CA
Greetings my friends, dumb question perhaps. Really not my area of expertise that's why I'm asking. Come rebuild time, would this require a tune. or will the O2 sensors still maintain AFR? Thanks for your replies on advance.
https://www.sscycle.com/products/110...wrinkle-black/
https://www.sscycle.com/products/110...wrinkle-black/
If you are adding a big bore kit (like above) to a smaller displacement engine, (ie: new pistons, bigger cylinders, different cams, bigger displacement, and higher compression, etc.), you will end up with a completely different engine than the bike was originally tuned for. You will absolutely need to tune the bike...
If you are just rebuilding an engine, with the same parts, and to the exact same specs that it was previously tuned for, you'll just have a fresh/new version of the engine that was in the bike already... there will be no need for a retune.
I hope that info helps....
Thread Starter
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Stellar HDF Member
Joined: Dec 2009
Posts: 2,913
Likes: 2,542
If you are adding a big bore kit (like above) to a smaller displacement engine, (ie: new pistons, bigger cylinders, different cams, bigger displacement, and higher compression, etc.), you will end up with a completely different engine than the bike was originally tuned for. You will absolutely need to tune the bike...
If you are just rebuilding an engine, with the same parts, and to the exact same specs that it was previously tuned for, you'll just have a fresh/new version of the engine that was in the bike already... there will be no need for a retune.
I hope that info helps....
If you are just rebuilding an engine, with the same parts, and to the exact same specs that it was previously tuned for, you'll just have a fresh/new version of the engine that was in the bike already... there will be no need for a retune.
I hope that info helps....
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