308 V12 conversion begins | Page 118 | FerrariChat

308 V12 conversion begins

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

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  1. Spasso

    Spasso F1 World Champ

    Feb 16, 2003
    14,656
    The fabulous PNW
    Full Name:
    Han Solo
    Forget TLC, all they do is stupid crap like "Jon & Kate plus Eight" and "I didn't know I was Pregnant".
     
  2. mk e

    mk e F1 World Champ

    Oct 31, 2003
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    I’ve got zip for you guys tonight. Nothing from Web and I decided I couldn’t proceed in the shop without a clean-up. Lana’s out with the girls Saturday so I should be able to get going on the heads. Burns shipped the pipe today so that should be here Monday or Tuesday I guess.
     
  3. mk e

    mk e F1 World Champ

    Oct 31, 2003
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    Paul....Both Lana and I are truely hoping I don't beat your record :)
     
  4. TURBOQV

    TURBOQV Formula Junior

    Mar 6, 2003
    838
    NV and Utah
    ME TOO!

    Fabulous work! I will have to see it in person when she is done!

    Paul
     
  5. NeuroBeaker

    NeuroBeaker Advising Moderator
    Moderator

    Oct 1, 2008
    40,040
    Huntsville, AL., USA
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    Andrew
    Dare I ask if there's a thread documenting how this record was attained? :eek:

    All the best,
    Andrew.
     
  6. mk e

    mk e F1 World Champ

    Oct 31, 2003
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    We’re just goofing. There is no actual record as far as I know but a couple people here have poured a lot of money into their 308s and Paul is one of them. Personally I’m on my 3rd engine in 9 years…and what is making Lana crazy is that there wasn’t anything wrong with the last 2
     
  7. 246tasman

    246tasman Formula 3

    Jun 21, 2007
    1,448
    UK
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    Will Tomkins
    It seems all wrong to me. I would want to be getting my cams (& springs) custom designed for my actual valve train weight and then get them ground on a cnc grinder. Is there some difficulty doing this in USA that I'm unaware of?
     
  8. NeuroBeaker

    NeuroBeaker Advising Moderator
    Moderator

    Oct 1, 2008
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    Andrew
    If there was nothing wrong with the previous two... Does the V12 count as engine number three? And was engine number two a V10? :p

    All the best,
    Andrew.
     
  9. mk e

    mk e F1 World Champ

    Oct 31, 2003
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    Cost mainly.

    There absolutely are places that will take a head and plug all the geometry into their solid modeling program then use that to custom design everything. If I went this route I’d guess I’d be looking at around a $15k investment in the valve train by the time I had everything and was ready to assemble..

    The standard approach is to do what I’m doing and go to a grinder not a designer. There is no engineering or design charges and the machine time on a tracer grinder is about ½ what a CNC grinder costs. You have to live with what they have masters for, but they have a lot and we are talking about very subtle changes I would make if I went full custom and it’s just not worth the money to me.

    Then I went looking for something common and off the shelf for springs/trainers/ect and I found that Honda TRX 400EX are just the ticket at about $90/cyl….so 4 sets of springs and 4 Ti retainers. These parts are designed to work with very similar cams/rpm, I’m using the Honda valve made with slightly longer stems and I’ll use the Honda shim under bucket parts and the Honda stem seals.

    Done for well under $5k total.
     
  10. 246tasman

    246tasman Formula 3

    Jun 21, 2007
    1,448
    UK
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    Will Tomkins
    I'm very surprised at the cost. I'll be doing some cams soon in UK and will let you know what it prices out at. I know it will be too late for the three-o-twelve but you're bound to be on to something else when it's done....maybe there's room for a custom H-16 in there..
     
  11. TURBOQV

    TURBOQV Formula Junior

    Mar 6, 2003
    838
    NV and Utah
    #2936 TURBOQV, Nov 20, 2009
    Last edited: Nov 20, 2009
    April 2006 Forza documents most of it.

    I dont want to start a thread its too painful. Long story short I bought a Norwood turbo 308 that had an idle issue with the Haltech system. The ECU unit was changed and the timing set 17 degrees too advanced. BOOOM two cylinders toasted. Send car to Norwood. JE pistons, Copper headgaskets, Air/water intercooler $30+k later I get my car back. Since then I have put another 20k or so into it. so I a few sheckels into my 308. If mark pays himself $10 an hour, than he has got me beat! Aye Mark?

    I have not included the $2000 for shipping the car from Dallas to Newport Beach and back nor the 11k paint damage that is suffered while in a former F-chat sponsors posession.

    Cheers

    Paul
     
  12. mk e

    mk e F1 World Champ

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    I'm afraid with the hours I've put in it'd be more like $1 :(
     
  13. mk e

    mk e F1 World Champ

    Oct 31, 2003
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    Just cams are cheaper. If you are just grinding it's something like $50/ lobe. If you need to weld it goes up to about $100/lobe. Double it if you are doign a custom engineered profile.

    Top shelf race springs are about $100 each. Custom valves $50-$100 each. It adds up fast.......
     
  14. TURBOQV

    TURBOQV Formula Junior

    Mar 6, 2003
    838
    NV and Utah

    Yes Mark but you cannot put a price on your ingenuity, perserverance, vision and brilliance!

    it will be a One off Eberhardt special!

    Cheers
     
  15. Newman

    Newman F1 World Champ
    Consultant Owner Professional Ferrari Technician

    Dec 26, 2001
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    Newman
    I have you both beat!
     
  16. TURBOQV

    TURBOQV Formula Junior

    Mar 6, 2003
    838
    NV and Utah




    yah but it dont count, didn't you sell your car?
     
  17. Pizzaman Chris

    Pizzaman Chris F1 Rookie

    Mar 13, 2005
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    Well, at least i'm on the bottom of the list. ;)
     
  18. NeuroBeaker

    NeuroBeaker Advising Moderator
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    Oct 1, 2008
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    Andrew
    Ouch, Paul! :(

    I hope things are going more smoothly now? :)

    All the best,
    Andrew.
     
  19. Newman

    Newman F1 World Champ
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    Dec 26, 2001
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    Yes but its still sitting here in my garage until tuesday then its off to the new owner.
     
  20. mk e

    mk e F1 World Champ

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    Om both monehy and time I quite certain......
     
  21. ramosel

    ramosel Formula 3

    Sep 11, 2004
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    R Moseley
    You shouldn't talk with your mouth full.... ;-)
     
  22. smg2

    smg2 F1 World Champ
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    Apr 1, 2004
    16,355
    Dumpster Fire #31
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    SMG
    I hope there isn't a 'mines bigger' competition going on here. Mark took left turn at Albuquerque long ago and went into a full sprint! He's so far off the map of std. and custom jobs we have to wonder about his mental state :D

    I look at it this way, at the peak here CA the resto-rod shops were charging 100k~200k for making BJ currency. Mark is leaps and bounds beyond the scope of any of those builds. sure he's doing it because he lost a few marbles and seems to enjoy torturing himself. but if Johnny Money bags had retained him to do this to his car, imagine the bill !!! the sheer mount of time in design development and legwork is probably beyond what mark figures it is. and lets be honest mark didn't even take the easy drop in V12 route he decided to redesign one!!

    So mark as one engineer to another, you're NUTS! I'm thoroughly impressed and we might just have to start calling you Howard. :D

    there seems to be a small group of you guys, the one in Sweden & wherever wildegrot(sp?) is and the others who's names escape me. all on the fringe building crazy custom stuff, imagine putting them all together and seeing what could be done, then again they might not be able to put in the lunch order due to option creep and the beer would get warm and anarchy would ensue. :D
     
  23. mk e

    mk e F1 World Champ

    Oct 31, 2003
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    There are times when I look back at things I posted and......
     
  24. mk e

    mk e F1 World Champ

    Oct 31, 2003
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    No pics today, Lana had the camera and there really isn't anything pic worthy. I welded header #2 while Vic was napping so it's ready to have the collector welded on during tomorrow's nap.

    Then I spent about 4 hours removing the intake and cam/cam cover studs from the heads getting ready to start machining and welding. I think I'm ready to make chips tomorrow.
     
  25. Tiger_Carrera

    Tiger_Carrera Rookie

    Jun 15, 2005
    42
    Gatineau, Quebec
    Full Name:
    Gary Corbett
    Mark - Just wondering, while you're building the headers were you going to install a mount in each pipe for a thermocouple or oxygen sensor to be able to monitor the A/F ratio in each cylinder? Are you worried about any cylinder running a bit lean and possibly getting damaged given the high power output? Or, were you just going to monitor it through an oxygen sensor for each bank after the second collector?

    Gary
     

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