EVO Engine Question

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Jun 7, 2021 | 03:51 PM

#11

Uncle G.

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Joined: Jun 2010

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From: Upstate New York

Quote:

Originally Posted by grbrown

I agree with all the above - twincam engines have balancer shafts built in, but all Evos have the same engine. The differences between models are in the primary chaincase, with a longer one for the softails and, I suspect, a shorter one for the FXRs - plus a midway length for the Touring models.

The FXR and the touring bikes both had the same rubber mounting system and used the same short primary case.

Jun 8, 2021 | 09:10 AM

#12

Abandoned

Thread Starter

Road Captain

Joined: Feb 2012

Posts: 574

Likes: 15

From: Carolina

Thank you all for the input. I originally thought that there wouldn't be an issue but like I stated someone in another forum stated that. Just wanted to check and make sure I was correct before moving forward with my project.

I did reach out to S&S to find out about the motor I have and it is a 96ci with super stock heads and a 561 cam. Is there anything else I should be aware of while swapping out my stock EVO with the S&S? Anything else I should upgrade while I have it ripped apart?

Jun 8, 2021 | 10:10 AM

#13

Dr.Hess

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Joined: Aug 2007

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From: NW AR

Put the big (last) alternator on it. Some people have good results with the Cycle Electrics 3 phase as well. I would go with whatever ignition system S&S recommends, or the Dynatek.

Jun 8, 2021 | 10:19 AM

#14

Abandoned

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Road Captain

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From: Carolina

Quote:

Originally Posted by Dr.Hess

Put the big (last) alternator on it. Some people have good results with the Cycle Electrics 3 phase as well. I would go with whatever ignition system S&S recommends, or the Dynatek.

I found the Cycle Electrics 3 phase but what is the "big (last) alternator" you mentioned?

Jun 8, 2021 | 10:47 AM

#15

Dr.Hess

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Joined: Aug 2007

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From: NW AR

32 Amp HD, 29985-87 if you don't have it already. Personally, I would go with the 32 amp HD just because if I ever needed a regulator, any HD shop or indy should have something, where as if I went Cycle Electric, I would not be sure. But lots of people have been trouble free with the Cycle Electric one.

Jun 8, 2021 | 11:40 AM

#16

Abandoned

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Road Captain

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From: Carolina

Quote:

Originally Posted by Dr.Hess

Well according to the harley site that was stock on my year. So as long as it still looks good i'll keep what i have in there and if not i'll most likely replace it with the same.