Author Topic: Turbo Charged CB550 Landspeed Attempt  (Read 23117 times)

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Offline BomberMann650

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Re: Turbo Charged CB550 Landspeed Attempt
« Reply #200 on: August 25, 2024, 08:50:43 PM »
Any day now

Offline Rocketman

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Re: Turbo Charged CB550 Landspeed Attempt
« Reply #201 on: August 26, 2024, 05:14:30 PM »
Good luck and go Faaaaast!

Offline Stev-o

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Re: Turbo Charged CB550 Landspeed Attempt
« Reply #202 on: August 27, 2024, 08:01:55 AM »
Turbine Blended with an inline four is a hell of sound


Sounds awesome!!
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Offline MRieck

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Re: Turbo Charged CB550 Landspeed Attempt
« Reply #203 on: August 27, 2024, 10:05:49 AM »
You have a great carb on there. ;)
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Offline BomberMann650

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Re: Turbo Charged CB550 Landspeed Attempt
« Reply #204 on: August 29, 2024, 04:08:17 AM »
You have a great carb on there. ;)

It really is a good carb.  May be a bit more than the turbo can handle.  But it did it's job.

Offline BomberMann650

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Re: Turbo Charged CB550 Landspeed Attempt
« Reply #205 on: August 29, 2024, 04:11:18 AM »
The class 'A-650-CBF' land speed record has now been set.

Offline MRieck

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Re: Turbo Charged CB550 Landspeed Attempt
« Reply #206 on: August 29, 2024, 04:39:29 AM »
Congratulations!👍
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Offline LiveeviL81

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Re: Turbo Charged CB550 Landspeed Attempt
« Reply #207 on: August 29, 2024, 08:22:49 AM »
Congrats!
Did you ever get the issues with the HSR40 not being able to open fully on the throttle figured out? My Turbo CB750A with an HSR42 has a very similar problem, I ended up going with a smaller turbo (TD025) and am planning on switching to a stock Harley CV carb (Keihin 40 I think). I love the idea of the intake running, and though about that as well for mine, but good to see you tried it and it didn't make much of a difference. My CB750 was draining the float bowl after about 10 minutes of spirited highway riding with the stock petcock, so I brazed a Harley 22mm bung/petcock with 5/16 line. No issues since. For now though I am stuck at about 75% throttle opening before it leans out and doesn't "want" anymore.

Kaleb
Young, Dumb, and Broke, hoping to fix 2 of those.

Offline BomberMann650

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Re: Turbo Charged CB550 Landspeed Attempt
« Reply #208 on: August 29, 2024, 09:48:43 AM »
Yeah, my little turbo just seemed to like having a smaller D shaped venturi to suck on.  Could probably find a 30mm turbo to install and keep the hs40.  But the vz21/rhb31 did spool really quick. 

Upping the boost to 8 psi for that last run gave the motor enough strength to Do the Ton against the wind. 
I didn't realize during the engine assembly that the effective altitude at Bonneville was about 2000 feet higher than the actual.  Next season I'll definitely ramp up the boost.

Offline Alan F.

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Re: Turbo Charged CB550 Landspeed Attempt
« Reply #209 on: August 29, 2024, 04:30:06 PM »
Thats great news, congratulations!

Oh, and your Bat outta hell acapella video came up on my YouTube feed yesterday. Good performance there as well.

« Last Edit: August 29, 2024, 04:33:58 PM by Alan F. »

Offline richmagee7

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Re: Turbo Charged CB550 Landspeed Attempt
« Reply #210 on: August 29, 2024, 06:49:00 PM »
Congrats BomberMann, well done.  And good seeing you out there.  Thanks for all the help.

Rich

Offline MRieck

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Re: Turbo Charged CB550 Landspeed Attempt
« Reply #211 on: August 29, 2024, 07:13:44 PM »
Congrats BomberMann, well done.  And good seeing you out there.  Thanks for all the help.

Rich
How about your story Rich?
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Offline Old Scrambler

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Re: Turbo Charged CB550 Landspeed Attempt
« Reply #212 on: August 29, 2024, 07:50:15 PM »
Congrats Bomber ;D.............So you got your 100-mph sticker to make that record run?!
Dennis in Wisconsin
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Offline Jerry Rxman Griffin aka MuthaF'er

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Re: Turbo Charged CB550 Landspeed Attempt
« Reply #213 on: August 29, 2024, 08:33:16 PM »
Congratulations. Good meeting you finally
As of today 3/13/2012 my original owner 75 CB750F has made it through 3 wives, er EX-wives. Free at last.  ;-)

Offline dragracer

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Re: Turbo Charged CB550 Landspeed Attempt
« Reply #214 on: August 29, 2024, 09:22:46 PM »
Congratulations on your achievement. The hard work paid off 🙌 👏

Offline BomberMann650

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Re: Turbo Charged CB550 Landspeed Attempt
« Reply #215 on: August 30, 2024, 05:57:06 AM »
Thats great news, congratulations!

Oh, and your Bat outta hell acapella video came up on my YouTube feed yesterday. Good performance there as well.

Funny you should mention that.  Meat Loaf made a guest appearance at the awards banquet last night 😆

Congrats Bomber ;D.............So you got your 100-mph sticker to make that record run?!

I kinda forgot to get the cool guy sticker for the extra mile start line.
Getting that rig up to speed in a standing mile was fun anyway

Offline BomberMann650

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Re: Turbo Charged CB550 Landspeed Attempt
« Reply #216 on: August 31, 2024, 08:23:13 PM »
Pictures from the race track.

Offline scottly

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Re: Turbo Charged CB550 Landspeed Attempt
« Reply #217 on: August 31, 2024, 08:27:13 PM »
That first picture is awesome! 8)
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Offline richmagee7

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Re: Turbo Charged CB550 Landspeed Attempt
« Reply #218 on: September 01, 2024, 06:10:00 AM »
I agree with Scottly, awesome pics. 

Rich

Offline BomberMann650

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Re: Turbo Charged CB550 Landspeed Attempt
« Reply #219 on: September 01, 2024, 01:42:07 PM »
Patiently waiting for scooter grubb to post his track shots.


Offline Tracksnblades1

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Re: Turbo Charged CB550 Landspeed Attempt
« Reply #220 on: September 01, 2024, 01:57:19 PM »
Bomber,

Is that rear suspension your design..?

Looks interesting…

Is it a double knee action..?  or are the two struts creating a different nodal point..?

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Offline BomberMann650

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Re: Turbo Charged CB550 Landspeed Attempt
« Reply #221 on: September 01, 2024, 03:09:37 PM »
Bomber,
Is that rear suspension your design..?
Looks interesting…
Is it a double knee action..?  or are the two struts creating a different nodal point..?

I borrowed the concept from BMW.  The form and fabrication was all done in the speed shed.
Some of the CAD (cardboard aided design) photos should be on this thread already.  Was never in short supply for prime delivery boxes and empty welding rod tubes.
It worked brilliantly.  Even in the rough patch of track entering the return side of the mile.  A little adjustment to the preload after the first run kept the tail from squatting into the tire.

The idea of an offset monoshock lent itself well to the old can-am shock i already had.
Some people call it a cantilever suspension.  Wherein the eye of a shock and an adjustable drag link are fixed to the engine tube, and a 3 point pivot is held at the end of the swingarm.  After a few mock ups i had the geometry well in the ball park and began building

Online CycleRanger

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Re: Turbo Charged CB550 Landspeed Attempt
« Reply #222 on: September 02, 2024, 10:30:49 AM »
That first picture is awesome! 8)

Indeed! It's calendar-worthy!
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Offline BomberMann650

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Re: Turbo Charged CB550 Landspeed Attempt
« Reply #223 on: September 02, 2024, 01:32:43 PM »
That first picture is awesome! 8)

Indeed! It's calendar-worthy!

Thats on you guys to nominate and vote.

I already got one for my wall that means much more.
After a $260 donation to the wendover museum effort, I hit carmens and collected every signature possible.  Record setters, racers, techs, officials and staff
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Offline grcamna2

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Re: Turbo Charged CB550 Landspeed Attempt
« Reply #224 on: September 02, 2024, 02:59:48 PM »
That first picture is awesome! 8)

Indeed! It's calendar-worthy!

Thats on you guys to nominate and vote.

I already got one for my wall that means much more.
After a $260 donation to the wendover museum effort, I hit carmens and collected every signature possible.  Record setters, racers, techs, officials and staff
20 years of BMST

Does Burt Munro and his Indian have a nice tribute area to his memory at Bonneville ?
75' CB400F/'bunch o' parts' & 81' CB125S modded to a 'CB200S'
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