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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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    #2976 PSk, Nov 25, 2009
    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
     
  2. 246tasman

    246tasman Formula 3

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

    f308jack F1 Rookie

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    #2978 f308jack, Nov 26, 2009
    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.
     
  4. jgoodman

    jgoodman F1 Rookie
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    #2979 jgoodman, Nov 26, 2009
    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
     
  5. mk e

    mk e F1 World Champ

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    #2980 mk e, Nov 26, 2009
    Last edited: Nov 26, 2009
    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.
     
  6. Pizzaman Chris

    Pizzaman Chris F1 Rookie

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    #2981 Pizzaman Chris, Nov 26, 2009
    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.
     
  7. PSk

    PSk F1 World Champ

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    #2982 PSk, Nov 26, 2009
    Oops, missed that ... been surfing for pictures :D

    Pete
     
  8. TURBOQV

    TURBOQV Formula Junior

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

    mk e F1 World Champ

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

    mk e F1 World Champ

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    #2985 mk e, Nov 27, 2009
    Last edited by a moderator: Sep 7, 2017
    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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  11. Etcetera

    Etcetera Two Time F1 World Champ
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    #2986 Etcetera, Nov 27, 2009
    Now yer just being lazy.
     
  12. mk e

    mk e F1 World Champ

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    #2987 mk e, Nov 27, 2009
    I know, but I want this project to end someday........
     
  13. Pizzaman Chris

    Pizzaman Chris F1 Rookie

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    #2988 Pizzaman Chris, Nov 27, 2009
    To end??

    Oh com'on, if it ends what else are we going to look/talk about?? ;)
     
  14. mk e

    mk e F1 World Champ

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    #2989 mk e, Nov 27, 2009
    Wooden boats with flat head V12s :)

    Stay alert, 11 posts to go!
     
  15. Jdubbya

    Jdubbya The $10 Trillion Man
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    #2990 Jdubbya, Nov 27, 2009
    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!!
     
  16. Etcetera

    Etcetera Two Time F1 World Champ
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    #2991 Etcetera, Nov 27, 2009
    Your 308 that's been in bits since the last time a Quaker was president.
     
  17. ramosel

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

    Pizzaman Chris F1 Rookie

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    #2993 Pizzaman Chris, Nov 27, 2009
    LOL!

    I guess we WILL have something to talk about once Mark gets his done. :)
     
  19. Pizzaman Chris

    Pizzaman Chris F1 Rookie

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

    mk e F1 World Champ

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    #2995 mk e, Nov 27, 2009
    Last edited by a moderator: Sep 7, 2017
    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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  21. Newman

    Newman F1 World Champ
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    #2996 Newman, Nov 27, 2009

    Too small. Go for the OEM turbo GTS tips.
     
  22. Newman

    Newman F1 World Champ
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    #2997 Newman, Nov 27, 2009
    Last edited by a moderator: Sep 7, 2017
  23. Newman

    Newman F1 World Champ
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    #2998 Newman, Nov 27, 2009
    Last edited by a moderator: Sep 7, 2017
  24. Newman

    Newman F1 World Champ
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    #2999 Newman, Nov 27, 2009
    Last edited by a moderator: Sep 7, 2017
  25. Pizzaman Chris

    Pizzaman Chris F1 Rookie

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