>Hello All,
>
>Moved to a new email address, so I don't think this made it thru the first
>time.
>
>Some questions and a comment or 2...
>
>Recently bought the Triumph TR-6 Competition Preperation Manual from TRF for
>my 74 1/2 and am wondering if anybody has made any of the engine performance
>mods discussed in the manual?
>Specifically I am interested in
>- decking the head to increase the compression to 10.25 (any piston mods
>needed for clearance? How about push rods?)
>- put a new grind on the cam
>- mild port on the head, matching the intake and the exhaust to their
>manifolds
>- balance the motor (crank w/rods, pistons, wristpins (& flywheel?)
>Are the charts shown accurate? Is there a cross-reference for the part #'s
>that they list in the Comp manual to either TRF or Moss part #'s?
>The car is a daily driver, so it must end up well behaved.
>
>How is everybody getting headers, non-stock carb setups, etc. thru smog
>testing? I'm in northern CA - is it just the CA people who take a beating
>with the smog issue, or is everybody faced with this? When I smogged the TR
>early last year, the mechanic really worked me over since he had never seen a
>TR-6 before. He drug the smog manuals out and when there was a question over
>the vacuum lines that come off the radiator hose it took a long
>"conversation" to get him to pass the car. Can't imagine trying to get a
>non-stock setup thru...
>
>In the next few weeks I'm planning on replacing the Michelin red-line tires
>with a new set of radials. It seems that 205/60/15's are the tire of choice,
>but I'm concerned that since I don't have the O/D unit I'm going to need to
>wind the motor out to run it on the freeway. My speedo registers 70mph @ ~4k
>rpm. Also the speedomoter will now register an incorrect speed with the new
>tires. Does anybody have an idea of how many mph I'm going to loose as a
>result of going to a smaller tire? How do I re-calibrate the speedo?
>
>On the subject of the O/D unit, the car originally had a unit in it ( has all
>the electrics in the steering column and I believe the comm #, noted below,
>shows it as an od car) but the DPO has a non-O/D tranny in it. What
>specifically do I need to do to add an O/D to my existing non-O/D tranny?
>
>My meager contributions to the list - RE:carb dashpot oil, the Bently manual
>calls for std 30 weight oil, RE: brake servo - I had the same symptoms,
>changed the servo and brakes were fixed. With the new stopping power, I
>thought I was going to tear the front end off the car since the braking was
>so much stronger. Bought the servo from Triumphs Only in San Jose. Worth a
>Mr. Franklin and a half to make sure that you are safe. RE: Nick and "The
>Dreaded Clunk", I too have this problem in 3rd and 4th gear, following your
>thread with interest.
>
>Wasn't there an address on the web where one could look up the commision #'s
>on the TR and get the car info online?
>
>Thanks!
>
>Mike D'Ambrogia
>Red 74 1/2 TR-6 CF 27282 UO Aug '74
>
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