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Think I Threw a Rod....
- Thread starter Project Midnight
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- Watchers 74
Rviator
Well-Known Member
My last post on this subject as you seem to not have a good grasp of physics and I don't want to have to take several pages explaining the subject to you.
Suffice to say 1. Stopping distance is dependent upon the amount of braking and the amount of traction between the tire and the road. And 2. each wheel on a motorcycle has a gyroscopic effect according to its mass and rotational velocity. Per no. 2 your statement that the front tire being mounted on the fork cannot keep the bike upright is totally false. Basic example that anyone can try, as kids riding bicycles with coaster brakes we'd all pedal as fast as we could trying to make the longest skid mark on the sidewalk. No one ever crashed or suddenly fell over from locking up the rear tire.
JTDay
Well-Known Member
Well congrats to you "old" guys! Lol. I'm only almost halfway there but I've been enjoying planning and looking forward to it. Wife and I are hoping to plop out our first kid here in the next year or so. Glad y'all made it to the other side!
And, I think the chat on the speculation of the OPs engine failure is a good one. Since in the grand scheme of things, the tuned ranger population is pretty small, a lot of us are eager to discover if there are any unique failure points on the engine and drivetrain when pushing them.
And, I think the chat on the speculation of the OPs engine failure is a good one. Since in the grand scheme of things, the tuned ranger population is pretty small, a lot of us are eager to discover if there are any unique failure points on the engine and drivetrain when pushing them.
JTDay
Well-Known Member
@TORQUERULES Those are great write-ups. Alex is the one who tuned my ms3. I also had their shift lever ext. and guardian angel. Good group of tinkerers.
dtech
Well-Known Member
the link to this article might be of interest I did a brief read of it but what caught my attention is the address in the "getting to know Ford" regards complexity of ignition timing methods . So at least in my mind a tuner needs to have a good deal of programming expertise as the engine mgmt is highly complex compared to a decade ago .
https://cobbtuning.atlassian.net/wiki/spaces/PRS/pages/30900388/Ford+Tuning+Guide
Langwilliams
Well-Known Member
- First Name
- Langley
- Joined
- Dec 31, 2019
- Threads
- 26
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- 3,204
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- Location
- Lorain, Ohio
- Vehicle(s)
- 2019 Ford Ranger XLT, 2014 Harley Street Glide
- Occupation
- Mail Carrier (retired) Navy Vet
Not to jack the thread but IMO my HD is pretty effective at rear braking. Harley even went to linked braking systems above 30 mph. You do have to be careful not to over brake with the rear, an when turning it's more like trail braking, not during the actual turn.
My street glide weighs about 810 pounds full of fuel, has a longer wheel base than sport bikes an Harley's usually have more rake than sportier rides since they are cruisers an not quick handling machines.
My street glide weighs about 810 pounds full of fuel, has a longer wheel base than sport bikes an Harley's usually have more rake than sportier rides since they are cruisers an not quick handling machines.
TORQUERULES
Well-Known Member
Yes, they really are fantastic with the Mazdaspeed. I hear good things with EcoBoost as well.
- Banned
- #969
As far as grasping the physics involved in riding a motorcycle, I would have to ask what are your qualifications and objectively quantifiable riding skill level? Based upon your choice of an R3, I think I already know the answer. In my case, my qualifications would include things like my background as an expert-licensed motorcycle road racer, motorcycle road racing instructor, motorcycle road racing race official, and motorcycle road racing endurance crew chief. My objectively quantifiable riding skill level, is about 6 seconds off the absolute lap record of my home track, and during track days, I have turned expert-level lap times with my wife on the back. That's good enough for a major motorcycle manufacturer to recruit me as a rider and model for their advertising campaigns, at the rate of $1,000 an hour.
No. That's how cars work. Cars are long, low, heavy, with brakes that are very small for their weight, and rock-hard tires intended to last tens of thousands of miles. The maximum braking abilities of cars, is limited by traction, until the brakes overheat, at which point they are then limited by braking power. Motorcycles are short, tall, light, with massive brakes, and soft sticky tires that don't last very long. Unless there is something wrong with your motorcycle, your maximum braking on pavement will not be limited by braking power or by front tire traction. The only braking limitation remaining at that point, is weight transfer.
Have you ever wondered why competent road motorcycles typically have two full-floating cross-drilled front brake discs about 300mm or so in diameter, two large radial-mount brake calipers with 8 to 12 front brake caliper pistons, a radial front brake master cylinder, and a single small non-floating rear disc with 1 or 2 brake caliper pistons in the back? That should be a clue to you.
Your first problem there, is that although the rear wheel can stabilize the motorcycle because it's locked in plane with almost the entire motorcycle, the front wheel cannot, because there's a hinge in between the front wheel and all that mass- the steering head.
And your second problem, is that when kids on 20" bikes lock up the rear wheel at 15 mph, they instantly have to balance the bicycle with steering and body english, which is easy because they weigh several times what their bicycle weighs. It's not the spinning front wheel keeping it up. If you remove the steering and body english, the bicycle will fall down when you lock up the rear tire. Body english alone, is not enough for you to be able to keep your 375-pound R3 upright with the rear wheel locked, because it outweighs you by a substantial margin. In theory, you MIGHT be able to keep it upright by steering alone, but in actual practice just about all motorcyclists fall down. Either way, the spinning front wheel will not be contributing to your endeavor. If/when the rear-end steps out enough to pull your foot off the rear brake, you will then high-side. As a police officer, I have seen this to be a VERY common cause of completely avoidable fatal motorcycle crashes.
There is an excellent book on this subject, that I highly recommend- "A Twist Of The Wrist 2" by Keith Code.
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JTDay
Well-Known Member
You referring to the borescope pics? It looks like you can see it off to the left side of what appears to be a cracked in half piston.
TORQUERULES
Well-Known Member
Got a new revision from Torrie with the shift strategy improvements I asked for. Gonna try it for a few days and report back. He is awesome! So quick.
dtech
Well-Known Member
What's even better than being retired ? Being retired and wife still works........I am SO thankful to be retired...
- Banned
- #973
Nah, I love my wife completely. We have SO much fun together. She's a lot younger than me, so it's kind of funny to have her retire, decades before she'll be old enough to draw from her Social Security. A lot of people assume that she's my daughter. Heck, she's still getting carded when she buys me booze...
dtech
Well-Known Member
as it turns out wife really likes her job and works 3 days a week with 6 weeks vacation, I'm anxious for her to call it a career though as Bob Seger once put in a song "get out of Denver better go" , I'm ready to leave.
