This page is an archive of interesting (At least I think they are) bits of information that have been posted in mail groups and news files.  I have tried to capture a collection of information about Triumphs with a focus on performance reliability not found in books about Triumphs.  No attempt has been made to capture entire threads. Some have been edited to make content clearer.

Most of these information nuggets have come from a group of Triumph vintage racers who are members of the FOT email list.

Triumph racer and good friend to everyone who knew him, Bill Dentinger driving his "Old Blue" , 1956 TR3, a race car since new.

Contents: 

• Origin of the Stromberg carburetor by Paul Richardson
   
• SU Carburetor modifications by Kas Kastner
   
• Intake air flow
   
• Head flow and roller rocker arms discussion
   
• Dyno tuning SU velocity stacks by Greg Solow, Kas & others
   
• The intake manifold balance tube by Kas
   
• Electric fuel pump by John Herrera
   
• TR Valve springs, They are not what they used to be
    
• TR lifters, They are softer than they used to be
    
• TR 2-4A cam shafts Misc info
   
• Checking cam timing in the engine  (TR2-4A)
   
• Adjusting valves
   
• Push rods Shorten tubular push rods to maintain rocker arm geometry when shaving a head
   
• TR 2-4A stopping push rod tube leaks by Jack Drews
   
• TR2-4A valve guide clearances
   
• Compression affects how well cams work
    
• TR2-4A timing chains and tensioners  How to make aftermarket ones last like the factory ones did
    
• How to identify an original Kas Kastner racing cam
    
• Distributors and timing
    
• Distributor tune up parts, problems & tricks
    
• TR3-4A heads, setting them up for hot street
   
• Raising compression for additional HP, A discussion mostly by Jack Wheeler and Kas Kastner
   
• Getting heads to seal, Figure 8 and head gaskets
   
• Triumph head torquing by Greg Solow
     
• Chrome on chrome and getting the most out of rings Chrome rings with chrome cylinders & getting the most compression out of rings
   
• Honing Triumph engine cylinders with a Flexhone
   
• Pistons
   
• TR cranks, About TR racing cranks
   
• TR 3/4 crankshaft harmonics, where they are and how to tame them
   
• Rear main bearing installation, a how-to by Harvey Printace
   
• TR six cylinder cranks, They can go fast too
   
• Cryogenic Treatment by Susan Kaher
     
•  TR engine bearings, They are not like they used to be
   
• TR 2-4 oil pumps, They don't make them like they used to and a work around
   
• TR3 cast aluminum oil pans Some history and why
   
• Racing with lightened connecting rods, Beware the oil hole
   
• TR6 flywheel & clutch, lighter is better
   
• TR6 flywheel attachment for high RPMs
    
• Fixings for aluminum flywheels by John Woods
   
• Making a light weight scatter shield
   
• TR6 close ratio gear boxes, How to tell if you have one
   
• TR transmission housing cracking, high power at race flexing
   
• A trick for easier TR gearbox install 
   
• Using a locker or limited slip for racing
   
• Setting up a diff w without the pinion depth tools by Jeff Quick & Greg Lund
  
  
• TR3 and TR4 rear axles for racing
   
• TR3 suspension changes, going beyond adding the factory optional suspension parts
   
• TR4 suspension changes, The wrong parts can get you into trouble
   
• Triumph frame fatigue discussion
   
• How to determine the proper tyre pressure for your (race) car 
   
• Racing on factory steel wheels by Kas Kastner
   
• Brake pedal sometimes is low on first press but otherwise is always high 
   
• Sorting out the different calipers used on TR3 through TR4A brakes
   
• Replacing the front brake piston seal on a TR4
   
• Remounting rear wheel cylinders and hand brake lever to the back plate by Randall
   
• 240Z aluminum brake shoes for 9" Triumph brakes by John Lye
     
• Hydraulic hoses, SS vs rubber  by Michael Porter
   
• A method of fitting connectors to braided hydraulic lines  by Bill Babcock
   
• Castellated nut does not line up by Kas Kastner
   
• First Triumph TR race  
    
• 50's & 60's racing vs vintage racing, Some history & thoughts by Kas Kastner & others
    
• GT6 engine, how many HP can they make? by Kas Kastner and Geoff Byrne
   
• Origins of the TR logo  by Lion F Guyot
   
• TR engine numbers starting with an "R" and what colour was the TR engine.   Mostly by John Macarthy
   
• Why do we put ourselves through the h**l of restoring a car by TeriAnn Wakeman
   
• Descriptions of common tools A light hearted look from Peter Egan's "Side Glances"
      
• Black oxide Vs plating Black oxide bolts are used in the TR2 through 3A boot to secure the rear wings
     
• Lap belt mounting The proper location for the mountings, by William G Rosenbach
   
• Shoulder restraints by Bill Rosenbach
   
• Chassis Dynos What are they good for
   
• Castrol gear oils  From Castrol
   
• Suitable Castrol engine oils for our Triumphs (Flat tappet engines)  From Castrol
   
• Wiring the TR3A windscreen wiper motor - The workshop manual is wrong for the TR3A by Brent Smith
    
• Triumph overdrive wiring, connecting and testing
   
• Automotive relays, which pin does what (Bosch system)
   
• Penetrating oil test by Pat Bob
     
• Engine assembly lubricants by Greg Solow
     
• Bearing lubrication By Greg Solow
     
• Setting the Triumph 4 engine up for better internal cooling By various
     

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