trade again
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RE: trade again
Any Harley mechanics out there? If so what do you think of the old88 vs the new engine? Why stroke it vs a larger bore? How many of you read about the new bikes with a hot or over heating engine on these pages. Like the Dragnet reruns "just the facts mam".
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From: Rochester, NY
RE: trade again
ORIGINAL: Old Texas Gringo
Any Harley mechanics out there? If so what do you think of the old88 vs the new engine? Why stroke it vs a larger bore? How many of you read about the new bikes with a hot or over heating engine on these pages. Like the Dragnet reruns "just the facts mam".
Any Harley mechanics out there? If so what do you think of the old88 vs the new engine? Why stroke it vs a larger bore? How many of you read about the new bikes with a hot or over heating engine on these pages. Like the Dragnet reruns "just the facts mam".
The EPA has been after Harley to clean up its act for some time and the "best" way to keep the performance up on an engine like a Big Twin is make it bigger. If your interested in super high perfomance you wnat the engines bore to be greater than its stroke. This lowers piston speeds while still allowing for reasonable breathing cycles.
When you lengthen the stroke you loose top end perfomance, but gain more torque in thelow tom mid range rpm area and lets face it a big twin Harley engine is no 13,000rpm screamer. Besides as a whole we as Harley riders have far more use for a stump pulling engine than something that needs to wound up to the moon before you can let the clutch out. Let alone dragnearly, or even a little overhalf a ton of bike and rider up to highway speeds.
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RE: trade again
You got it right. But stroking is what causes the heat problem. Every mechanic I talk to says the TC88 was designed for a bigger piston not a longer stroke. The longer stroke will also cause faster engine wear. I'mnot trying to rain on the new bikes just saying the new stroked engine was to make the EPA happy not to build a better engine.
May our Moderator Rest in Peace
Joined: Sep 2006
Posts: 11,386
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From: Rochester, NY
RE: trade again
ORIGINAL: Old Texas Gringo
You got it right. But stroking is what causes the heat problem. Every mechanic I talk to says the TC88 was designed for a bigger piston not a longer stroke. The longer stroke will also cause faster engine wear. I'mnot trying to rain on the new bikes just saying the new stroked engine was to make the EPA happy not to build a better engine.
You got it right. But stroking is what causes the heat problem. Every mechanic I talk to says the TC88 was designed for a bigger piston not a longer stroke. The longer stroke will also cause faster engine wear. I'mnot trying to rain on the new bikes just saying the new stroked engine was to make the EPA happy not to build a better engine.
What causes all the heat in the new 96 engines is the restrictive intake and reduced fuel input. That and Haleyupgraded to thesorta overdrive 6 speed tranny in an effort to lower RPM's at cruising speeds to help keep the EPA off their backs. Longer strokes don't in and of themselves cause higher heat generation. In fact the larger surface area per cc of combustion space actually helps cool it better/faster.
The 96 isn't any great improvement over the 88, it is better in an engineeering sense. But in the real world of practicality NO harley V-Twin is gong to be the best there is in its displacement size. There are a few too many built in limitations for that. Just for starters the single throw crank that is the root of thatdistinctive Harley sound we all love. It gives the engine its unique sound at the expense of anunbalanced firing order.
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RE: trade again
[quote]ORIGINAL: Citoriplus
Huh? Who told you that stroking causes heat? Stroking doesn't cause heat any more than snow causes cold./quote]
lol... I had to think about that snow thing for a sec. I find that very funny in my current tired state.
ORIGINAL: Old Texas Gringo
You got it right. But stroking is what causes the heat problem. Every mechanic I talk to says the TC88 was designed for a bigger piston not a longer stroke. The longer stroke will also cause faster engine wear. I'mnot trying to rain on the new bikes just saying the new stroked engine was to make the EPA happy not to build a better engine.
You got it right. But stroking is what causes the heat problem. Every mechanic I talk to says the TC88 was designed for a bigger piston not a longer stroke. The longer stroke will also cause faster engine wear. I'mnot trying to rain on the new bikes just saying the new stroked engine was to make the EPA happy not to build a better engine.
lol... I had to think about that snow thing for a sec. I find that very funny in my current tired state.
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