Author Topic: Billet Crankshafts  (Read 10967 times)

0 Members and 3 Guests are viewing this topic.

Offline gschuld

  • Master
  • *****
  • Posts: 2,346
Re: Billet Crankshafts
« Reply #50 on: April 16, 2022, 10:29:04 AM »
George, you're thinking a "retired guy" like Mike should be trying to go faster? He needs to slow down man!

🤭

Not nice 😃

George

Offline bwaller

  • Really Old Timer ...
  • *******
  • Posts: 7,484
Re: Billet Crankshafts
« Reply #51 on: April 16, 2022, 11:12:29 AM »
It was intended to be nice. He needs to slow down & smell the flowers for a change.

Offline gschuld

  • Master
  • *****
  • Posts: 2,346
Re: Billet Crankshafts
« Reply #52 on: April 16, 2022, 02:18:16 PM »
One can easily ride a stroker big bore engine slow, you just have the option of going faster…

😉

George

Offline Tracksnblades1

  • My Son was a collegiate competition Trap, Skeet, and sporting Clay
  • Master
  • *****
  • Posts: 1,854
Re: Billet Crankshafts
« Reply #53 on: April 16, 2022, 08:16:43 PM »
One can easily ride a stroker big bore engine slow, you just have the option of going faster…

😉

George


Nah….it’s not an option. You’ll have to grab a handful, no matter what age.

L, my granddad was still laying rubber down in an old 70 caprice classic 427 before he gave up the ghost😇
Age Quod Agis

Offline Medyo Bastos

  • Master
  • *****
  • Posts: 1,587
  • Gusto mo titi ko?
    • project
Billet Crankshafts
« Reply #54 on: April 17, 2022, 09:17:55 AM »
Paladin333 on hondachopper runs a turbo and NOS on his amen savior. He always says twist your throttle until you smell 5hit, or see God


Sent from my iPhone using Tapatalk

Offline MRieck

  • Really Old Timer ...
  • *******
  • Posts: 10,562
  • Big ideas....
Re: Billet Crankshafts
« Reply #55 on: April 17, 2022, 03:48:02 PM »
Paladin333 on hondachopper runs a turbo and NOS on his amen savior. He always says twist your throttle until you smell 5hit, or see God


Sent from my iPhone using Tapatalk
Back in the end days of Funnybike I know guys were running nitrous with the turbo. The nitrous would get you off the line hard and then the turbo would kick in. I can't even imagine what cylinder pressure was at that nitrous/50lb boost overlap period.
Owner of the "Million Dollar CB"

Offline Tracksnblades1

  • My Son was a collegiate competition Trap, Skeet, and sporting Clay
  • Master
  • *****
  • Posts: 1,854
Re: Billet Crankshafts
« Reply #56 on: April 18, 2022, 08:40:37 PM »
Paladin333 on hondachopper runs a turbo and NOS on his amen savior. He always says twist your throttle until you smell 5hit, or see God


Sent from my iPhone using Tapatalk
Back in the end days of Funnybike I know guys were running nitrous with the turbo. The nitrous would get you off the line hard and then the turbo would kick in. I can't even imagine what cylinder pressure was at that nitrous/50lb boost overlap period.

Did it ever come out the bottom..?
Age Quod Agis

Offline MRieck

  • Really Old Timer ...
  • *******
  • Posts: 10,562
  • Big ideas....
Re: Billet Crankshafts
« Reply #57 on: April 19, 2022, 05:52:55 AM »
Paladin333 on hondachopper runs a turbo and NOS on his amen savior. He always says twist your throttle until you smell 5hit, or see God


Sent from my iPhone using Tapatalk
Back in the end days of Funnybike I know guys were running nitrous with the turbo. The nitrous would get you off the line hard and then the turbo would kick in. I can't even imagine what cylinder pressure was at that nitrous/50lb boost overlap period.

Did it ever come out the bottom..?
All I saw were a couple of rods bent in the shape of a boomerang.
Owner of the "Million Dollar CB"

Offline dragracer

  • Really Old Timer ...
  • *******
  • Posts: 5,108
  • CB750F Dragbike
Re: Billet Crankshafts
« Reply #58 on: April 30, 2022, 07:21:17 AM »
Keith, when can we expect to see one of your products in an engine and running??

Offline dragracer

  • Really Old Timer ...
  • *******
  • Posts: 5,108
  • CB750F Dragbike
Re: Billet Crankshafts
« Reply #59 on: April 30, 2022, 08:10:56 AM »
Keith, when can we expect to see one of your products in an engine and running??

Offline kmb69

  • Master
  • *****
  • Posts: 2,041
Re: Billet Crankshafts
« Reply #60 on: May 01, 2022, 05:11:22 AM »
Keith, when can we expect to see one of your products in an engine and running??

Frank, I hope to have one finished this year.
My current Customer backlog in the shop should be finished in about 30 days at which time I can put some of my own parts in the machines.
Material and tooling are on hand waiting for an available machine. Lots of machine work to be completed for the complete engine build.
I have all my models and programs ready to go, I think. A few pictures attached to show what I am working on.


Offline kmb69

  • Master
  • *****
  • Posts: 2,041
Re: Billet Crankshafts
« Reply #61 on: May 01, 2022, 05:13:53 AM »
Keith, when can we expect to see one of your products in an engine and running??

The main shaft will be spinning faster so the oil pump speed has to be reduced to prevent cavitation.


Offline Medyo Bastos

  • Master
  • *****
  • Posts: 1,587
  • Gusto mo titi ko?
    • project
Billet Crankshafts
« Reply #62 on: May 01, 2022, 05:35:14 AM »
Those are enough crumbs to make a grown man drool! I hope you’re doing good Keith!


Sent from my iPhone using Tapatalk

Offline kmb69

  • Master
  • *****
  • Posts: 2,041
Re: Billet Crankshafts
« Reply #63 on: May 01, 2022, 05:37:40 AM »
Keith, when can we expect to see one of your products in an engine and running??

This cylinder head should flow about 11% more than Brent's DOHC Super Head according to my calculations.
Straight intakes and straight exhausts. Exhaust pipes barely clear the frame.
Aluminum billet for 7 of each, cylinders and heads, is in house ready for machining.

Offline kmb69

  • Master
  • *****
  • Posts: 2,041
Re: Billet Crankshafts
« Reply #64 on: May 01, 2022, 05:39:48 AM »
Those are enough crumbs to make a grown man drool! I hope you’re doing good Keith!


Sent from my iPhone using Tapatalk

Thanks Angelo. Doing good here. Hope the same for you.

Offline kmb69

  • Master
  • *****
  • Posts: 2,041
Re: Billet Crankshafts
« Reply #65 on: May 01, 2022, 06:30:07 AM »
Keith, when can we expect to see one of your products in an engine and running??

The DOHC frame provides plenty of head room.
Frame is already completed.

« Last Edit: May 01, 2022, 06:50:56 AM by kmb69 »

Offline Jerry Rxman Griffin aka MuthaF'er

  • This MuthaF'er is getting to be a
  • Really Old Timer ...
  • *******
  • Posts: 14,912
  • Bought her new 4/75
Re: Billet Crankshafts
« Reply #66 on: May 01, 2022, 08:16:30 AM »
VERY impressive indeed!  ;D
As of today 3/13/2012 my original owner 75 CB750F has made it through 3 wives, er EX-wives. Free at last.  ;-)

Offline Old Scrambler

  • My CB750K3 has been in 39 States & 5 Provinces
  • Old Timer
  • ******
  • Posts: 3,808
Re: Billet Crankshafts
« Reply #67 on: May 01, 2022, 08:39:12 AM »
I am now MORE honored to have had dinner with you ;)

Do I see roller rockers?
Dennis in Wisconsin
'64 Triumph Cub & '74 Honda CB750 Bonneville Salt Flats AMA Record Holder (6)
CB750 Classic Bonneville Racer thread - http://forums.sohc4.net/index.php/topic,135473.0.html
'63 CL72 Project(s)
'66 CL77 Red
'67 Triumph T100C
'73 750K3 Owned since New
'77 750F2 Cafe Project
2020 ROYAL ENFIELD Himalayan

Offline bwaller

  • Really Old Timer ...
  • *******
  • Posts: 7,484
Re: Billet Crankshafts
« Reply #68 on: May 01, 2022, 09:09:59 AM »
Very interesting work Keith. VERY!

Offline kmb69

  • Master
  • *****
  • Posts: 2,041
Re: Billet Crankshafts
« Reply #69 on: May 01, 2022, 09:18:48 AM »
I am now MORE honored to have had dinner with you ;)

Do I see roller rockers?

Thank you, it was my honor and pleasure.

Yep, the rockers have rollers on the shafts and rollers that replace the tappet screws.
Valve adjustment is made with varying thicknesses of valve stem lash caps.
The rocker arm geometry is a thing of beauty if I do say so myself.
Less than 1mm sweep across the lash caps at 11mm lift.
« Last Edit: May 01, 2022, 09:33:45 AM by kmb69 »

Offline kmb69

  • Master
  • *****
  • Posts: 2,041
Re: Billet Crankshafts
« Reply #70 on: May 01, 2022, 09:22:55 AM »
VERY impressive indeed!  ;D

Thank you Spanky.

Very interesting work Keith. VERY!

Thank you Brent. 100's of hours "invested"  ;)

Offline bwaller

  • Really Old Timer ...
  • *******
  • Posts: 7,484
Re: Billet Crankshafts
« Reply #71 on: May 01, 2022, 09:53:06 AM »
Valve angle?

Offline gschuld

  • Master
  • *****
  • Posts: 2,346
Re: Billet Crankshafts
« Reply #72 on: May 01, 2022, 09:56:25 AM »
Impressive Kieth.  May I inquire about valve sizes and intended bore?

George

Offline MRieck

  • Really Old Timer ...
  • *******
  • Posts: 10,562
  • Big ideas....
Re: Billet Crankshafts
« Reply #73 on: May 01, 2022, 10:04:29 AM »
Valve angle.....its got some. Valve size...larger than stock. ;D
Owner of the "Million Dollar CB"

Offline kmb69

  • Master
  • *****
  • Posts: 2,041
Re: Billet Crankshafts
« Reply #74 on: May 01, 2022, 10:04:42 AM »
Valve angle?

Intakes 23.75
Exhausts 24.75