*****************************************Your response prompts a couple of questions:
- How square is the factory 88" engine (bore vs. stroke)?
- What is the benefit of increasing bore over stroke?
- What is the benefit of increasing stroke over bore?
I seem to recall that the best possible combo is bore and stoke are the same. Please excuse my ignorance.
Thanks,
Rich P
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Rich,
Aren't you an Engineer?
I think you should know the answers here.
The Sq of a motor is a good thing... HD came close in the first TC motors, shorting the stroke from 4.25" in the evo to 4" in the TC of 99 and increasing the bore closer to the 4" mark...
Thumpers with Long strokes had a good amount of Torque at slow turning RPM's + heavy flywheel, but the Sq. motors were well blanced at 4x4...SMooooooth at higher turning RPM's. I've been told. (hear-say)
Now that is about all I know and I May be Wrong.:small3d031:
You figure and post Your results. Be interesting to read. Thanks.
signed....BUBBIE
I am indeed an engineer, but I write software and design electronic gizmos. I am relatively defenseless regarding engines. I did remember a hint of what you linked to, which was quite good. I thought some consideration in that direction might contribute something to the mix.Found some Good reading to understand the differences::s
Stroke ratio | Ask.com Encyclopedia
This does explain the Sq. also under and over Sq.
signed....BUBBIE
looking for any info or insight when building a 103 out of a 88