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rogerguzzi

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Posts posted by rogerguzzi

  1. 1 hour ago, Mathew said:

    Thats pretty good, whats your driving style?

    Hello Mathew

                           There was no motorway driving in this and we tend to drive spiritedly especially on the twisty bits (3rd gear and in and out of overdrive sometimes 2nd and overdrive)

    I think if I did a long drive on an A road at 50/60mph and level it would be nearer 50mpg

    Roger

  2. 2 minutes ago, Mathew said:

    I remember its possible to get near 50mpg from a spitfire. Std cam, flowed head , k and n filters, richer needles and a cold air feed to the carbs. And most importantly a steady driving style. 

    Hello All

                 I have fuel injection with ITB's and Microsquirt ecu

    The engine is fully balanced and a Newman fast road cam, head ported by me! rods polished balanced and shot peened the block is decked and compression ratio is about 9.75 to 1,  4 branch manifold I have a 28% overdrive and I can use it on 2nd gear when needed(up hill twisty roads!)

    I have noted the fuel over the 3500 miles and I am getting 45mpg overall

    I can see a few places it could be leaned off from the guage in the car!

    I am not going to at the moment as I think that E10 may make it a bit weaker although I give the ECU a 6% control to alter things

    Roger

  3. 2 hours ago, PeteH said:

    P.s. Rogerguzzie: do you know what the two small Aeroplanes are?. The all yellow one is vaguely like a Stimpson, But the blue one with chequer tail?, escapes me?. It has the look of one of the Check, Aerobatic models?.

    Pete

    Hello Pete

                    The yellow one is a Pitts special  and the other is a Yak 52 I have forgot what the other Yak is

    If you go to aircraft registations you can read about them

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    • Like 1
  4. Hello Chris

                      I thought of doing this but someone on another forum pointed out it alters the geometry and it has taken him some time to get it back to handle the same!

    The pivot is a bit farther out! so a lot of work to sort out!

    Roger

    ps it addled my brain so just oiled the trunnions again as usual   

    Roger

  5. 8 minutes ago, PeteH said:

    3) If it needed can the 1300 Head be transplanted?. I know my existing  engine head was a club shop conversion at about 80K miles

    Hello Pete

                      It would raise the compression ratio a bit unless you open up the chambers a bit.

    Roger

    • Like 1
  6. Hello John

                      The WSM gives 1.9659 - 1.9664 for end journals  

                                                 1.9440  - 1.9654 for middle ones

    Haynes gives the same and also 1.9680  - 1.9695 for the block

    Roger

    ps large journal cam take one from the other and you get 0.125" give or take a bit so 0.0625" shell thickness! (I mean small journal cam)

  7. Hello John

                       They are the same bearings just 2 less so the same! they only left them out to save money!

    Basically you have got to have the block bored to the same(Triumph saving money!)

    We love our cars but they were parts bin made sometimes!

    Just look how many parts fit so many different models?

    If you you look at large journal and small journal cams it is the shell difference in diameter!(cheap!!) and more than adequate for a road car!#

    Roger 

     

  8. 2 hours ago, JohnD said:

    I've found these specs in the GT6 Mk 1 WSM: 

    Camshaft

    New Dimension Inches

    Clearances Inches

    Journal Diameter

    1.8402

    0.0026

     

    1.8407

    0.0046

    Bore in block

    1.8433

     

     

    1.8448

     

    Please ignore the heavy table lines - I didn't put them in!

    But what do these specs mean?   Why two dimensions for the journal and bore widths?  Were these the tolerance Triumph worked to?

    A journal width 1.8402 in a bore 1.8433 has a clearance of 31 thou.      A journal 1.8407 in a bore 1.8448 has a clearance of 41 thou!    Neither agrees with the stated clearances!

    Confusing!

    This doesn't answer the machinist's Q, what dimension to bore out to for bearings, but could inform the decison, if I had some illumination!

    John

    Hello John 

                     I think you will find it is 3.1 Thou and 4.1 Thou

    Roger

  9. 49 minutes ago, Jeffds1360 said:

    All is silent ... all is swell (sweet and well) :)

    Fitted the C40L with a ? 3/8 ? ish spacer and it is soooooo quiet!

    Never realised how noisy the old one was. which goes click diddy click, click wham boo, just spinning by hand !!!

    Now to get those overider cages jammed up :(.... separate post and problem :(

    Thanky you Mr Rogerguzzy

    Hello Jeff

                    Did the bracket I sent you not fit then?

    Roger

  10. Hello Jeff

                     I have a rebuilt Dynamo that has not done many miles going spare if you are interested?

    I have the paper work for the repairs somewhere!

    I came off our Mk1 Vitesse as I am going to an Alternator

    Roger

                    

    • Thanks 1
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