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Sportster Motorcycle Engine Conversions Advice, questions, and tips for 1200, 1250, 1340, 1450 etc... for Sportster and Buell motorcycle engine conversions

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  #41  
Old 23rd July 2021
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Trying to hit the rev limiter(hit 5800) with only 250 miles doesn't jibe with Hammer's break in instructions.
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  #42  
Old 23rd July 2021
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Who breaks in on a Dyno?
Obviously, that's contrary to everything I said.
And more importantly, everything that HammerPerf publishes.
Your belief system is contrary to standard engine building practices for a street motor on Evo XLs.
There are folks that publish "run it like you stole it" after the last bolt goes on a new build.
These folks have a lot of experience in tearing down and rebuilding also.
If you've been conversing with speed shops, their builds may be great but are usually intended for one run or two before the next build.

I don't want to get into a pissing match about it.
I'm trying to help, not bash.
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  #43  
Old 23rd July 2021
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Even Harley-Davidson suggest a break-in with their new bike. They dyno every engine but have multi-million dollar assembly line and measuring tools.

If they were to gamble every engine they produce, they will be long gone.

As Hyppyssmask stated, experience in engine building is very important.

I'm an amator mechanic who overdoes thinks. That why I don't run a repair shop.
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  #44  
Old 23rd July 2021
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Ok, I've done some research on breaking in on a Dyno.
These guys don't just hammer it like you'd normally think.
They tune low to mid first. And it's expensive just after spending all that $ on the build.
But if you believe it's got to be done like that, go ahead.
I prefer the way I have been doing it.
See, I'm not too old to learn something new.
And I understand there are several ways to skin a cat.
But if you intend on dyno tune breakins, make sure they warranty the parts before they fire it up.
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  #45  
Old 23rd July 2021
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I'm just asking questions folks.
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  #46  
Old 23rd July 2021
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Quote:
Originally Posted by Mr.Rowdy View Post
And this nonsense of people blaming me for the issue is ridiculous. I did absolutely nothing to cause this issue and have been ultra diligent in making sure that I made every attempt to insure that I had proper oiling, carburetion, timing dialed, EVERYTHING.
Its your fault all right....hail Hammer!!
pin pulled.....tossed and cover....

Kidding of course. Aaron will set you straight. I personally guarantee it. He will not let you be unhappy.
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  #47  
Old 23rd July 2021
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It's all good dude. We all learn from each other here.
Somebodies engine blows, they post pics and you wouldn't believe how much time I spend analyzing the carnage.
I try to learn as much as I can, for myself. And if I can get a grasp on something, I try to help others with it.
But I could be out stealing the neighbor's mushrooms instead.
Wait.... I think I already did that. Is that a butterfly?
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  #48  
Old 23rd July 2021
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These are the best kind of threads. learning from those who know more and getting solutions....
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  #49  
Old 23rd July 2021
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Don't listen to me. I'm dumb as Hell.. Ask my ex wife.... the wench....
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  #50  
Old 24th July 2021
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I'm still confused on what you all think I did wrong? I gave the bike 200 miles of baby love before I decided to give it a pull. The issue was present as soon as it was out of the swaddling zone. It would have been there or gotten worse and possibly caused other issues had it gone longer. If the pistons don't fit the cylinders they aren't going to at one mile or ten thousand.
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