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  1. 911308
    Post

    Marelli distributor recurve

    Note: last image above is the original full distributor advance of 18 degrees - 36 degrees crank.
    Post by: 911308, Dec 15, 2023 in forum: 308/328
  2. 911308
    Thread

    Marelli distributor recurve

    308 GTB 1979 CR 9.6 to 1 Euro cams 229/219 duration, twin distributors NGK BP7ES Good information on this site about rebuilds so I will skip the...
    Thread by: 911308, Dec 15, 2023, 1 replies, in forum: 308/328
  3. 911308
    Post

    Carb car stalling when hot- vapor lock?

    A couple of points when synchronising the carburettors. When you set up the carburettor idle air flow ( with the air bypass screws fully in )...
    Post by: 911308, Sep 26, 2017 in forum: 308/328
  4. 911308
    Post

    DCNF progression tuning

    Thanks for your follow up information. I remember I couldn't get the car up the driveway with the 55 idles so I went from 60 to 65 in quick...
    Post by: 911308, Apr 4, 2017 in forum: 308/328
  5. 911308
    Post

    Derek's 308 engine rebuild

    I have run simulations based on my known 308 ferrari engine combinations of CR, cam timing and ignition curves and found I can run up to a maximum...
    Post by: 911308, Mar 13, 2017 in forum: 308/328
  6. 911308
    Post

    Derek's 308 engine rebuild

    Great work! Losing 4 cc chamber volume shouldn't be too hard. 20 thou off the piston ( keep 5mm crown thickness), remove some material around the...
    Post by: 911308, Mar 6, 2017 in forum: 308/328
  7. 911308
    Post

    308 cam pulley group buy

    Hi Derek, I think Mark in post 19 sums it up well! Degree marks on the pulley may be more confusing than helpful? I have used Frank Capo steel...
    Post by: 911308, Jan 31, 2017 in forum: 308/328
  8. 911308
    Post

    Derek's 308 engine rebuild

    Derek, My experience has been that with an advanced exhaust cam (less overlap),manifold vacuum is increased and part throttle response & torque...
    Post by: 911308, Dec 2, 2016 in forum: 308/328
  9. 911308
    Post

    Derek's 308 engine rebuild

    Here is the simulation of euro cams at 9:1 CR compared to the 348 crank 10:1 catcam setup. You might be able to run 10.5 CR with the catcams but...
    Post by: 911308, Nov 30, 2016 in forum: 308/328
  10. 911308
    Post

    DCNF progression tuning

    I reworked the bowl and SSR similar to the image below to suit the larger intake valves installed 10 years ago. This has been largest gain I have...
    Post by: 911308, Nov 16, 2016 in forum: 308/328
  11. 911308
    Post

    Small port 308 engine

    John, The fact your heads could flow to that sort of horsepower is very encouraging! With a larger capacity engine the Catcam or QV camshafts are...
    Post by: 911308, Oct 30, 2016 in forum: 308/328
  12. 911308
    Post

    Small port 308 engine

    Here are the effects of matching the 208/308 euro intake cams with the US/208 exhaust cams as well as US intake with US exhaust. These are for the...
    Post by: 911308, Oct 27, 2016 in forum: 308/328
  13. 911308
    Post

    Small port 308 engine

    Unfortunately you can't swap the intake cam for the exhaust. The 208 exhaust cam is the same as the 212/.300 you have already. I did a sim a...
    Post by: 911308, Oct 26, 2016 in forum: 308/328
  14. 911308
    Post

    Small port 308 engine

    Derek, Attached graph is the difference in the euro 208 vs 308 intake when used with the 308 euro exhaust.330 lift in the 2.95 stroke motor....
    Post by: 911308, Oct 26, 2016 in forum: 308/328
  15. 911308
    Post

    Small port 308 engine

    Thought I should put this with the other graphs. QV London have a road cam with a 10.2mm lift, used with standard springs and shim on bucket...
    Post by: 911308, Oct 26, 2016 in forum: 308/328
  16. 911308
    Post

    Derek's 308 engine rebuild

    Derek, I am enjoying this thread as are others, and may chime in if it seems useful or adds something. I saw you were going to use cometic...
    Post by: 911308, Oct 25, 2016 in forum: 308/328
  17. 911308
    Post

    Small port 308 engine

    I haven't the lift curve data to map the catcam lobe agression but the curves give the impression of where things start and finish. The intake is...
    Post by: 911308, Oct 25, 2016 in forum: 308/328
  18. 911308
    Post

    Small port 308 engine

    I have searched for the “Ferrari 308 Performance Handbook”, or “101 Projects for Ferrari 308” etc but have failed. The information is not easily...
    Post by: 911308, Oct 25, 2016 in forum: 308/328
  19. 911308
    Post

    Small port 308 engine

    This thread was spawned from here: http://www.ferrarichat.com/forum/308-328-sponsored-yellow-compass-group/423336-dcnf-progression-tuning.html and...
    Post by: 911308, Oct 23, 2016 in forum: 308/328
  20. 911308
    Post

    maximum ignition advance for carb'ed 308

    I hope Bill doesn't mind but his link here -...
    Post by: 911308, Oct 23, 2016 in forum: 308/328
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