Landracing Forum Home
February 16, 2019, 08:58:07 AM *
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 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 [24] 25   Go Down
  Print  
Author Topic: Belly Tank Build Diary  (Read 101144 times)
0 Members and 1 Guest are viewing this topic.
Mike Brown
Full Member
***
Offline Offline

Age: 61
Location: Morrow Ohio, 15 minutes from Woody's house
Posts: 203





Ignore
« Reply #345 on: January 20, 2019, 12:44:58 PM »

The factory blower ratio is 2.74:1 which at my maximum rpms gives a blower speed of 17,536 rpm.  My new blower ratio is 3.24:1 which gives me a blower speed of 20,736 rpm.  Both Weapon-X and Lingenfelter recommend a maximum blower speed of 23,000 rpm.  I should be safe at this speed.  This will stretch my fuel injectors to the maximum at the stock fuel pressure.  I am running an Aeromotive Eliminator fuel pump with boost referenced fuel pressure regulator so I will insure that I have adequate (higher than stock) fuel pressure at maximum power.  This is why a good tuneup on a chassis dyno is must. 
Logged
Mike Brown
Full Member
***
Offline Offline

Age: 61
Location: Morrow Ohio, 15 minutes from Woody's house
Posts: 203





Ignore
« Reply #346 on: January 23, 2019, 11:17:54 AM »

I dropped the parts off to Weapon-X in Cincinnati to have the OEM blower pulley removed and the new pulley pressed on.  They recommend "pinning" the pulley to the shaft since it is held in place with a press fit only.  This is a comparison of the 3" OEM pulley and the Lingenfelter 2-1/2" pulley.  This will speed the blower up approximately 18%. 


* Blower Pulley 3.jpg (259.85 KB, 1008x756 - viewed 49 times.)
Logged
Mike Brown
Full Member
***
Offline Offline

Age: 61
Location: Morrow Ohio, 15 minutes from Woody's house
Posts: 203





Ignore
« Reply #347 on: January 25, 2019, 02:33:44 PM »

The SCTA has deemed that "D" rings are not safe to secure arm restraints like those on my SFI-20 fire suite.  The "D" rings can be used as an attachment point. 


* Arm Restraints 2.jpg (251.31 KB, 756x1008 - viewed 24 times.)
Logged
Mike Brown
Full Member
***
Offline Offline

Age: 61
Location: Morrow Ohio, 15 minutes from Woody's house
Posts: 203





Ignore
« Reply #348 on: January 25, 2019, 02:34:56 PM »

The fix is to use flat buckles like these to secure the adjustment.  Thanks to Joe Timney of Delaware Chassis Works for supplying these. 


* Arm Restraints 1.jpg (189.31 KB, 756x1008 - viewed 20 times.)
« Last Edit: January 25, 2019, 02:37:44 PM by Mike Brown » Logged
Mike Brown
Full Member
***
Offline Offline

Age: 61
Location: Morrow Ohio, 15 minutes from Woody's house
Posts: 203





Ignore
« Reply #349 on: January 25, 2019, 02:36:18 PM »

The fix took about 10 minutes. 


* Arm Restraints 3.jpg (250.15 KB, 1008x756 - viewed 25 times.)
Logged
Stan Back
Hero Member
*****
Offline Offline

Location: San Berdoo
Posts: 4967





Ignore
« Reply #350 on: January 28, 2019, 12:54:29 PM »

I'm at a loss to verify this reply I've given away all my current Rule Books.  But, as I remember, somewhere it says that the arm restraint must be at the smallest place on the arm (which makes sense it that it won't move back and forth).  And some inspectors, not all, will not pass it when it's up on the forearm.  Comments?
Logged

Member of the San Berdoo Roadsters California's most-exclusive roadster club.
Celebrating 65th anniversary of racing on the salt.
handyguy
Full Member
***
Offline Offline

Age: 77
Location: tucson az.
Posts: 65


BANTAM FOURPLAY




Ignore
« Reply #351 on: January 28, 2019, 03:00:41 PM »

YES    ..  on smallest part of arm , generally the wrist area ..   STEVE
Logged
Mike Brown
Full Member
***
Offline Offline

Age: 61
Location: Morrow Ohio, 15 minutes from Woody's house
Posts: 203





Ignore
« Reply #352 on: January 28, 2019, 07:19:20 PM »

The new blower pulley is pressed on so I need to machine another timing belt pulley to drive the alternator.  The only accurate way that I know to insure the new bore in the pulley is concentric when the hub is machined off is to bore and relieve softjaws for the lathe.  The slot prevents contact with the flanges. 


* Machining lathe softjaw small.jpg (287.48 KB, 756x1008 - viewed 21 times.)
Logged
Mike Brown
Full Member
***
Offline Offline

Age: 61
Location: Morrow Ohio, 15 minutes from Woody's house
Posts: 203





Ignore
« Reply #353 on: January 28, 2019, 07:21:29 PM »

The new pulley chucked up and ready to machine. 


* Machining new blower pulley 1 small.jpg (226.19 KB, 756x1008 - viewed 22 times.)
Logged
Mike Brown
Full Member
***
Offline Offline

Age: 61
Location: Morrow Ohio, 15 minutes from Woody's house
Posts: 203





Ignore
« Reply #354 on: January 28, 2019, 07:22:23 PM »

The new blower pulley machined. 


* Machining new blower pulley small.jpg (270.86 KB, 1008x756 - viewed 24 times.)
Logged
Mike Brown
Full Member
***
Offline Offline

Age: 61
Location: Morrow Ohio, 15 minutes from Woody's house
Posts: 203





Ignore
« Reply #355 on: January 28, 2019, 07:24:53 PM »

The new blower and alternator pulleys installed.  The alternator pulley was a shrink fit on the blower pulley hub secured with Loctite.  After the Loctite cures I will drill and pin the pulley in place to insure that it does not come loose. 


* New blower pulley 1 small.jpg (348.58 KB, 1008x756 - viewed 30 times.)
Logged
Mike Brown
Full Member
***
Offline Offline

Age: 61
Location: Morrow Ohio, 15 minutes from Woody's house
Posts: 203





Ignore
« Reply #356 on: January 28, 2019, 07:35:16 PM »

I'm at a loss to verify this reply I've given away all my current Rule Books.  But, as I remember, somewhere it says that the arm restraint must be at the smallest place on the arm (which makes sense it that it won't move back and forth).  And some inspectors, not all, will not pass it when it's up on the forearm.  Comments?

The fire suit was manufactured by Stroud Safety.  The arm restraints are integral to the fire suit.  I was advised that Bob Stroud submitted for and received compliance. 
Logged
wobblywalrus
Hero Member
*****
Offline Offline

Age: 65
Location: backwoods Oregon
Posts: 4852





Ignore
« Reply #357 on: January 29, 2019, 11:18:11 AM »

Mike, will that pull shaft stay cool enough to use Loctite?  Some types of it lose grip strength at elevated temps.
Logged
Rex Schimmer
Hero Member
*****
Offline Offline

Age: 75
Location: Fulton, CA
Posts: 2310


Only time and money prevent completion!




Ignore
« Reply #358 on: January 29, 2019, 12:47:22 PM »

Mike,
Are you planning to cross pin the pulley to the shaft or "Dutch" pin it? For something like this I really prefer the Dutch pin method as it is like putting in a precision key. When you have dis similar metals like you have you really need to do it with a small milling cutter, carbide if possible. This is a favorite way to key things together of the "Kansas Bad Man" Max Lambky.

Nice job on the soft jaws!!

Rex
Logged

Rex

Not much matters and the rest doesn't matter at all.
Stan Back
Hero Member
*****
Offline Offline

Location: San Berdoo
Posts: 4967





Ignore
« Reply #359 on: January 29, 2019, 12:49:10 PM »

"The fire suit was manufactured by Stroud Safety.  The arm restraints are integral to the fire suit.  I was advised that Bob Stroud submitted for and received compliance."

It (like mine) was probably in compliance when it was manufactured.  So we're following what I believe to be the "letter of the law" and we have a new strap located on the wrist with the proper hardware.  We were told to make that modification and used it all last year.  I'd hate to get to a meet and have a problem . . .
Logged

Member of the San Berdoo Roadsters California's most-exclusive roadster club.
Celebrating 65th anniversary of racing on the salt.
Pages: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 [24] 25   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 February 13, 2019, 10:08:16 PM