308 V12 conversion begins | Page 120 | FerrariChat

308 V12 conversion begins

Discussion in '308/328' started by mk e, Oct 9, 2007.

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  1. PSk

    PSk F1 World Champ

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    I've been thinking about your port modification and short inlet manifolds and I think you should just weld them on to the head, instead of making them bolt on. Heck they are less than 100mm long and the drama of making them bolt on does not seem to be worth it.

    As each throttle body is individual there is nothing gained from having the bolted connection from manifold to head ... just a thought.
    Pete
     
    PSk, Nov 25, 2009
    #2976
  2. 246tasman

    246tasman Formula 3

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    Seems right!
     
    246tasman, Nov 26, 2009
    #2977
  3. f308jack

    f308jack F1 Rookie

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    12 less possibilities for leaks too, but it may be complicating machiening of the heads later on.
    I like the idea though. It'll also be a little less crowded in the V with the absence of flanges and bolts. Simplicty as always better.
     
    f308jack, Nov 26, 2009
    #2978
  4. jgoodman

    jgoodman F1 Rookie Silver Subscribed

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    This is so cool and I'm in total awe. Mark, this is so impressive, I can't even begin to tell you. I'm nervous about just trying to replace the starter on my Mondial myself! Besides the huge investment, and the incedible knowledge base you constantly show, you're perserverance is really impressive. There are so many ways to screw up. I hope this is all worth it in the end. It should be. Keep up the amazing work. All the best. Jay
     
    jgoodman, Nov 26, 2009
    #2979
  5. mk e

    mk e F1 World Champ

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    I see how you guys are. When I said 2 pages ago no one was listening but when Pete says it....... ;)

    The down side is that with the manifold as part of the head I will be pretty much married to the Duc TBs as any change would require reworking the heads. I think that's fine though because the TBs are going to be flow matched to the heads so changing them means putting the head back on the flowbench anyway.

    I got some specs fron WebCam last night and a box of tubing from Burns Stailess yesterday afternoon so I've got lots to do after holiday stuff is over.
     
    Last edited: Nov 26, 2009
    mk e, Nov 26, 2009
    #2980
  6. Pizzaman Chris

    Pizzaman Chris F1 Rookie

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    Glad to see they are tackling the job.



    Now i have to go and keep a eye on the Turkey. Mom loves cooking things well done and dry for some reason.
     
    Pizzaman Chris, Nov 26, 2009
    #2981
  7. PSk

    PSk F1 World Champ

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    Oops, missed that ... been surfing for pictures :D

    Pete
     
    PSk, Nov 26, 2009
    #2982
  8. TURBOQV

    TURBOQV Formula Junior

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    yours too? Is she Irish? soggy and mushy seems to be the Irish motto for cooking!

    Cheers

    Wonder if Mark snuck a few hours in the dungeon today? :)

    highly doubt it!
     
    TURBOQV, Nov 26, 2009
    #2983
  9. mk e

    mk e F1 World Champ

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    You're right....maybe tomorrow
     
    mk e, Nov 26, 2009
    #2984
  10. mk e

    mk e F1 World Champ

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    Here are a couple graphs I threw together comparing cams.

    The graphs for the stock cams I had to do a little guessing on but I'm sure they are very close and plenty good enough for comparison purposes. The new cams will be just a touch more aggressive than stock ;)

    The ones labeled Steve's are cams that ran really well in a hot 2V 308. The ones labeled Web are the option Web is recommending for me....very similar to Steve's but more lift and a bit more exhaust duration because my exhaust port is not oversize and doesn't want a reduced duration exhaust cam to correct it. I has looking for more intake lift but it just does not appear to be practical with teh tiny ferrari base circles.....and I'm not going to raise the cams to allow a larger base circle so .450 lift it is.

    The second graph is my intake and exhaust laid over each other to look at how they compare to each other. The exhaust has a tough more .050 duration but less above that…it’s a tad less aggressive than the intake grind
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    Last edited by a moderator: Sep 7, 2017
    mk e, Nov 27, 2009
    #2985
  11. Etcetera

    Etcetera Two Time F1 World Champ Silver Subscribed

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    Now yer just being lazy.
     
    Etcetera, Nov 27, 2009
    #2986
  12. mk e

    mk e F1 World Champ

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    Help me get this thing finished! https://gofund.me/39def36c
    I know, but I want this project to end someday........
     
    mk e, Nov 27, 2009
    #2987
  13. Pizzaman Chris

    Pizzaman Chris F1 Rookie

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    To end??

    Oh com'on, if it ends what else are we going to look/talk about?? ;)
     
    Pizzaman Chris, Nov 27, 2009
    #2988
  14. mk e

    mk e F1 World Champ

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    Wooden boats with flat head V12s :)

    Stay alert, 11 posts to go!
     
    mk e, Nov 27, 2009
    #2989
  15. Jdubbya

    Jdubbya The $10 Trillion Man Silver Subscribed

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    Looks like only 10 to go now :)

    Keep up the amazing work, I love coming back to your thread after awhile and seeing what you've gotten done. Great stuff!!
     
    Jdubbya, Nov 27, 2009
    #2990
  16. Etcetera

    Etcetera Two Time F1 World Champ Silver Subscribed

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    Your 308 that's been in bits since the last time a Quaker was president.
     
    Etcetera, Nov 27, 2009
    #2991
  17. ramosel

    ramosel Formula 3

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    OUCH....
    Hey... wait a second, mine's been apart that long too!
    <head down, big sigh, lower lip out, slinking out to the garage>

    Rick
     
    ramosel, Nov 27, 2009
    #2992
  18. Pizzaman Chris

    Pizzaman Chris F1 Rookie

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    LOL!

    I guess we WILL have something to talk about once Mark gets his done. :)
     
    Pizzaman Chris, Nov 27, 2009
    #2993
  19. Pizzaman Chris

    Pizzaman Chris F1 Rookie

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    Hang in there Rick. You'll get her done.
     
    Pizzaman Chris, Nov 27, 2009
    #2994
  20. mk e

    mk e F1 World Champ

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    Here's a few pics of the oval adapters I'm thinking will be the exhaust tips.....a little small but not too bad as there seems to be a pretty even gap beteween the tip and the cover.

    I got the second head cut and it came out good. I was off center a littel on the first one and some welding is in order to fix it......I need to be more careful. I'll fix #1 then go back to finishing the headers.
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    Last edited by a moderator: Sep 7, 2017
    mk e, Nov 27, 2009
    #2995
  21. Newman

    Newman F1 World Champ Consultant Owner Professional Ferrari Technician

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    Too small. Go for the OEM turbo GTS tips.
     
    Newman, Nov 27, 2009
    #2996
  22. Newman

    Newman F1 World Champ Consultant Owner Professional Ferrari Technician

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    Last edited by a moderator: Sep 7, 2017
    Newman, Nov 27, 2009
    #2997
  23. Newman

    Newman F1 World Champ Consultant Owner Professional Ferrari Technician

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    Last edited by a moderator: Sep 7, 2017
    Newman, Nov 27, 2009
    #2998
  24. Newman

    Newman F1 World Champ Consultant Owner Professional Ferrari Technician

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    Last edited by a moderator: Sep 7, 2017
    Newman, Nov 27, 2009
    #2999
  25. Pizzaman Chris

    Pizzaman Chris F1 Rookie

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    This thread is just AWESOME!! :)
     
    Pizzaman Chris, Nov 27, 2009
    #3000
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