Landracing Forum Home
October 23, 2017, 03:52:33 PM *
Welcome, Guest. Please login or register.
Did you miss your activation email?

Login with username, password and session length
News:
BACK TO LANDRACING.COM HOMEPAGE
 
   Home   Help Search Calendar Login Register  


(Note: Donations are not tax deductible)







Live Audio Streaming and Archives of Past Events
Next Live Event: TBD
Pages: 1 ... 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 [54] 55   Go Down
  Print  
Author Topic: BSA B50 -500 APG Build  (Read 206076 times)
0 Members and 2 Guests are viewing this topic.
Hoody
New folks

Offline Offline

Location: In the neighbourhood, right?
Posts: 24




Ignore
« Reply #795 on: June 29, 2017, 05:57:07 AM »

Have had no demands for cash here, Although as usual they have tried to get me to upgrade for only "$99" a year..
Logged
Calkins
Sr. Member
****
Offline Offline

Age: 34
Location: Iowa Falls, Iowa USA
Posts: 518


On Any Sunday


WWW

Ignore
« Reply #796 on: June 29, 2017, 07:24:20 AM »

Sounds like a spam pop-up ad, Tom.  I too have used Photobucket for years.  The amount of bull$h!t ads that is on there now is a bit overwhelming, but all is still free.
Logged

Justin Calkins - Iowa Falls, Iowa  USA
Seldom Seen Slim
Administrator
Hero Member
***
Offline Offline

Age: 69
Location: Skandia, Michigan
Posts: 11791


Nancy -- 201.913 mph record on a production ZX15!


WWW
« Reply #797 on: June 29, 2017, 07:48:31 AM »

Good thought, Justin, especially since "ransom" bad software is floating about the internet firmament these days.  Maybe some enterprising hacker came up with the idea. . .  Sure hope so -- I'd be bummed if Photobucket went funky on us.
Logged

Jon E. Wennerberg
 a/k/a Seldom Seen Slim
 Skandia, Michigan
 (that's way up north)
2 Club member x2
Owner of landracing.com
Calkins
Sr. Member
****
Offline Offline

Age: 34
Location: Iowa Falls, Iowa USA
Posts: 518


On Any Sunday


WWW

Ignore
« Reply #798 on: June 29, 2017, 08:09:59 AM »

After closing out about a dozen stupid ads, I was finally able to get to my photos, and post one...


Logged

Justin Calkins - Iowa Falls, Iowa  USA
Koncretekid
Sr. Member
****
Offline Offline

Age: 70
Location: Yarmouth, Nova Scotia & Lafayette, Co.
Posts: 987





Ignore
« Reply #799 on: June 29, 2017, 03:43:00 PM »

If I Google "photobucket 3rd party hosting", I get 3 pages posted in the last 24 hours stating that they have gotten the same message that I got.  I guess you guys are just lucky!

If you look at my photos in this topic back to 2014, all of my photo postings have been disabled.  Or am I the only one getting the message?

Tom
Logged

We get too soon oldt, and too late schmart!
Life's uncertain - eat dessert first!
Seldom Seen Slim
Administrator
Hero Member
***
Offline Offline

Age: 69
Location: Skandia, Michigan
Posts: 11791


Nancy -- 201.913 mph record on a production ZX15!


WWW
« Reply #800 on: June 29, 2017, 04:27:57 PM »

I just went back and looked at some pics I posted via Photobucket at the 2009 Shootout.  They're still there - no issues, no pop-ups.

Q E D
Logged

Jon E. Wennerberg
 a/k/a Seldom Seen Slim
 Skandia, Michigan
 (that's way up north)
2 Club member x2
Owner of landracing.com
davidd
New folks

Offline Offline

Location: Portsmouth, NH
Posts: 12





Ignore
« Reply #801 on: July 01, 2017, 03:41:58 PM »

This is not a virus or a pop up. Photobucket changed their Terms of Service contract. They no longer allow what they call "third party hosting" or posting on forums. This will apply to everyone, although it will take a while for everyone to be asked. Eventually, you will have to agree to their terms of service or you will not be allowed on the site. Photobucket is free to change their terms of service any way they like. That stipulation is in the terms of service that you checked the box on when you signed up.

My photos from Photobucket are still posted, but eventually they will disappear. Here is an article in PC magazine about it:

http://www.pcmag.com/news/354711/photobucket-breaks-image-links-across-the-internet

I think photos are a great asset to forums, but I never liked being forced to use Photobucket or any other site.

David
Logged
Koncretekid
Sr. Member
****
Offline Offline

Age: 70
Location: Yarmouth, Nova Scotia & Lafayette, Co.
Posts: 987





Ignore
« Reply #802 on: August 31, 2017, 10:39:33 AM »

This spring, I got my old K&L dyno working very well with new software from Performance Trends and used hardware from Jack Illiff. I had to build a starter mechanism which consisted of a Dodge starter motor with a polyurethane drive wheel mounted on a shaft behind the rotating drum.  It worked very well and started my bike every time with no problems.  So then the only problem was slowing the drum down which still requires the use of the bike's rear brake.  Not too bad with the disc brake as the pads are easily installed and cheap, which I already had to do once.  I didn't know the rotational moment of inertia of the drum, so I worked backwards using a 100% stock Yamaha SR100 which was claimed by Yamaha to have 31.5 hp.  When I got the dyno reading to indicate 31 hp for the Yamaha, I started testing a couple of my other bikes. 

I then put on a stock BSA B50 with a new piston, and after having to retune that, I managed about the same hp as the Yamaha, though BSA claimed 34 hp.  A stock BSA B44 with a new piston registered 28 hp, so I felt I was getting a reasonable number.  I then put the land speed bike on and got an amazing 62 hp. To qualify that number, the last time I had the bike on Dan Dunn's Dynojet dyno, it only registered 50 hp and I hadn't made any significant changes, so the 62 hp number is "happy horsepower", but it's all relative when I make changes, and it is nearly twice the hp of a stock B50.

I then made about 72 pulls, trashing 3 clutch rods on the coast down, and only finding about 2 more horsepower with multiple intake, exhaust, tappet radius, jetting, and timing changes, so I must be close to the limit for this motor.  I did find that the previously maximum hp rpm of 6900 could be increased by simply revving the motor to 7300 or 7400 rpm.  So I added one more tooth for the Bonneville run.

The first day of racing at the BMST I spent helping my friend Doug with his Buell Blast powered 650 APG which has been a bear to get to run without a huge flat spot.  We improved his run for Monday by 15mph so we were headed in the right direction, but after a 3rd change, the bike twisted on his towing trailer which is only about 3 feet wide, flipped over and broke his handlebar clip-on as well as the mounting bracket, and flattened one of the trailer tires and bent the wheel.  So it was the end of the meet for Doug.  To add insult to injury, he broke a brake line on his truck when he was leaving and could not find a replacement in Wendover, so is coming home with one brake line pinched off.  It's a 10 hour drive in the best of conditions, so it will be a long trip for him.

So on Monday morning, I got my first run on the newly geared Beeza. 144 mph with a detour at the 5-1/2 mile mark around the left side of the kilometer timing lights, off the throttle, back onto the track in time to catch the mile timing lights. I may be the only competitor to have a "mile" speed with no "kilometer" speed.  The track was rough enough that when I hit a series of bumps or a soft spot, I lost all vision with my riding position and no rear suspension.  The motor was spinning like a top, so needless to say I was a bit disappointed with my attempt at making the straight line into a slalom course! I'm pretty sure I had to be topping 150 to have that 144 average even with the detour.  Tom Mellor told me he had the same experience on his bike at nearly the same spot, so I felt somewhat vindicated.

I lined up on Tuesday morning after the riders' meeting, but ended up 16th in line just behind Bo (Wobbly Walrus), so got relegated to the 2nd queue.  By 11:30 I had not moved and inch, and realizing that even after I would get to the line, there would be two other starting points to run before me, so probably a couple more hours,  I got very discouraged.  Then I thought about the course which probably had not gotten any smoother and decided that risking another off-track adventure could be dangerous so I packed up my gear and came home yesterday.  After speaking to Bo about his run with full suspension, it reinforced my decision to back out.

As soon as I got the bike on the lift this morning, the wheels in my head started turning.  I will be adding rear suspension, as we may well have to live with poor salt conditions in the future.

Tom
Logged

We get too soon oldt, and too late schmart!
Life's uncertain - eat dessert first!
makr
Full Member
***
Offline Offline

Age: 50
Location: SL,UT
Posts: 123

I make my own rules




Ignore
« Reply #803 on: September 01, 2017, 08:43:46 AM »

I just ordered a mountain bike shock for the rear. It was the only shock I could find short enough.


I think you are right about rough salt for the future.


It was good to see you again, Tom.
Logged

Ride fast, safety last.

https://speedofcheeseracing.com/
Koncretekid
Sr. Member
****
Offline Offline

Age: 70
Location: Yarmouth, Nova Scotia & Lafayette, Co.
Posts: 987





Ignore
« Reply #804 on: September 01, 2017, 08:59:49 AM »

Mark,
That's a great idea!  Is yours single shock or dual?  What kind of spring rates can you get for the bike shocks?  I will have to make massive changes to my frame to make the conversion because it has to fit under my quite narrow fairing and not have more than about 1" of sag and another 1" of travel before the rear tire will start hitting the frame.
Tom
Logged

We get too soon oldt, and too late schmart!
Life's uncertain - eat dessert first!
55chevr
Hero Member
*****
Offline Offline

Location: Long Island, NY
Posts: 2220





Ignore
« Reply #805 on: September 01, 2017, 08:41:31 PM »

Tom ...  did you consider an under slung shock like a Harley softtail?

Joe
Logged
makr
Full Member
***
Offline Offline

Age: 50
Location: SL,UT
Posts: 123

I make my own rules




Ignore
« Reply #806 on: September 01, 2017, 08:50:56 PM »

Mark,
That's a great idea!  Is yours single shock or dual?  What kind of spring rates can you get for the bike shocks?  I will have to make massive changes to my frame to make the conversion because it has to fit under my quite narrow fairing and not have more than about 1" of sag and another 1" of travel before the rear tire will start hitting the frame.
Tom


It is air with a lockout if I ever wanted to go back ridgid. I am unsure if it has a high enough spring rate, but for the price I thought I would give it a shot. I have a mono shock swingarm that has the stock linkage.

http://www.cyclingdealusa.com/DNM-Mountain-Bike-Air-Rear-Shock-With-Lockout-p/aoy-36rc.htm (I got the 200mm long one)

I have about the same travel on my bike, although I am going to raise it a half inch or so to clear the pipes that are nearly dragging as it is. I hope is doesnt screw up the ride.
« Last Edit: September 01, 2017, 08:56:18 PM by makr » Logged

Ride fast, safety last.

https://speedofcheeseracing.com/
JimL
Sr. Member
****
Offline Offline

Age: 71
Location: Sutherlin, Oregon
Posts: 738





Ignore
« Reply #807 on: September 01, 2017, 11:55:00 PM »

You will find very short, "0-0" (no lash and even compression/rebound damping) shock absorbers on the side of various 4-cylinder engine blocks in fwd sedans back in the 90s.  They are equipped with a very well sealed bellows over the shock rod because they must survive in heat, road salt, hot oil, coolant leaks, etc.  You will find them bolted between the bell-housing area and the longitudinal cross-member under the middle of the engine bay.

You can select initial reaction by compression adjustment on the double-nuts at the top of the rod (for the upper rubber cushions).  These will be about right to handle a "bike and rider" mass.

I used these at all four corners of a sub-1500 pound street rod and they worked great at about a 45 degree mounting angle.  Should be cheap at the pick-a-parts.
Logged
Koncretekid
Sr. Member
****
Offline Offline

Age: 70
Location: Yarmouth, Nova Scotia & Lafayette, Co.
Posts: 987





Ignore
« Reply #808 on: September 02, 2017, 08:12:16 AM »

Tom ...  did you consider an under slung shock like a Harley softtail?

Joe
Joe,
I have considered such a shock, but I don't think I have room between the frame and the fairing, and my battery and oil tank would have to be relocated.  But I'm only in the conception stage, so I'll look again.

It is air with a lockout if I ever wanted to go back ridgid. I am unsure if it has a high enough spring rate, but for the price I thought I would give it a shot. I have a mono shock swingarm that has the stock linkage.

http://www.cyclingdealusa.com/DNM-Mountain-Bike-Air-Rear-Shock-With-Lockout-p/aoy-36rc.htm (I got the 200mm long one)

I have about the same travel on my bike, although I am going to raise it a half inch or so to clear the pipes that are nearly dragging as it is. I hope is doesnt screw up the ride.

Looks interesting, Mark.  Because it is an air spring, the spring rate should be completely variable.

Are you going to World of Speed?

You will find very short, "0-0" (no lash and even compression/rebound damping) shock absorbers on the side of various 4-cylinder engine blocks in fwd sedans back in the 90s.  They are equipped with a very well sealed bellows over the shock rod because they must survive in heat, road salt, hot oil, coolant leaks, etc.  You will find them bolted between the bell-housing area and the longitudinal cross-member under the middle of the engine bay.

You can select initial reaction by compression adjustment on the double-nuts at the top of the rod (for the upper rubber cushions).  These will be about right to handle a "bike and rider" mass.

I used these at all four corners of a sub-1500 pound street rod and they worked great at about a 45 degree mounting angle.  Should be cheap at the pick-a-parts.

Thanks, Jim, for that very interesting possibility.  Can you suggest what vehicle would have such a unit?

Tom
Logged

We get too soon oldt, and too late schmart!
Life's uncertain - eat dessert first!
JimL
Sr. Member
****
Offline Offline

Age: 71
Location: Sutherlin, Oregon
Posts: 738





Ignore
« Reply #809 on: September 02, 2017, 10:42:24 AM »

The ones I used were off '94-95 Camry 4-cyl.  The oldest application I remember was automatic trans Celica in the early 80s.  I know other brands used them....they were a development that came from help with the large tire manufacturers as radial tires became standard fitment. 

Radials run down the highway in a "somewhat trangular" shape and the 3rd order vibration at those speeds is sympathetic with the mass of some of the 4-cyl engine/trans back then.  4-cyl without counterbalancers needs softer motor mounts and when the engine starts jumping in time with the tires.....that needed fixing.

I havent seen them on more modern cars, but I am out of touch with the industry these days. 

I didnt even know until a few weeks ago that the A/C systems have now started using propane instead of hfc134.  Here I have been driving a new Tacoma for a year and never even thought about how fast and powerful the A/C cools in the 110 degree weather we have had!  Back in my tech days, we used to scream bloody murder about the "propane subsitute" for R12 that was coming out of Mexico way back when.  Now it is standard equipment.

Yup...out of touch and usually full of bad advice.

Logged
Pages: 1 ... 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 [54] 55   Go Up
  Print  
 
Jump to:  

Powered by MySQL Powered by PHP Powered by SMF 1.1.21 | SMF © 2015, Simple Machines
Simple Audio Video Embedder
Valid XHTML 1.0! Valid CSS!


Google visited last this page September 02, 2017, 06:48:15 PM