308 air injection plugs needed. Badly. | Page 2 | FerrariChat

308 air injection plugs needed. Badly.

Discussion in '308/328' started by Cigarpoor, Mar 17, 2008.

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  1. Steve Magnusson

    Steve Magnusson Two Time F1 World Champ
    Lifetime Rossa

    Jan 11, 2001
    26,932
    30°30'40" N 97°35'41" W (Texas)
    Full Name:
    Steve Magnusson
    #26 Steve Magnusson, Oct 22, 2008
    Last edited by a moderator: Sep 7, 2017
    Thanks for the kind words Modeler -- but be careful -- you are giving away your age ;)

    Here's the actual part and the nozzle (108205) that it replaces:
    Image Unavailable, Please Login
     
  2. Birdman

    Birdman F1 Veteran

    Jun 20, 2003
    6,689
    North shore, MA
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    THE Birdman
  3. Verell

    Verell F1 Veteran
    Consultant Owner

    May 5, 2001
    7,022
    Groton, MA
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    Verell Boaen
    #28 Verell, Oct 23, 2008
    Last edited: Oct 23, 2008
    Yes, I read that thread before starting this one. Scott had a great price on them. However if you'll read Scott's post #117 in July '07 in that thread you'll find out that the machine shop wouldn't make him more at anything like that price. That's why Scott couldn't deliver on the 2nd round.

    BTW, I was looking over my spreadsheet & the not to exceed number is $150, not $200. I had a programming bug that I didn't catch. Teach me to do something in a rush.

    I'm looking into a couple of other sources, including Sean, so hopefully there is room for improvement.

    I looked into getting std M14x1.5 bolts & cutting their nose down. Ran into 3 problems:

    1) M14x1.5 is a custom make in anything other than class 10 steel.

    2) The std head for M14 bolts is 22mm across, not 17mm for the plugs.

    3) M14 is one of several metric sizes being phased out by the ISO stds. It is on the 'not reccommended for new designs' along with M18 & some other sizes! This probably accounts for 1).
     
  4. dave80gtsi

    dave80gtsi Formula 3
    Silver Subscribed

    Nov 3, 2003
    1,948
    Ohio
    Full Name:
    Dave Meredith
  5. Verell

    Verell F1 Veteran
    Consultant Owner

    May 5, 2001
    7,022
    Groton, MA
    Full Name:
    Verell Boaen
    Rock,

    What material are your plugs made from?

    Do they have noses that fill the holes into the exhaust port?

    A picture would really help people understand your offering.
     
  6. FasterIsBetter

    FasterIsBetter F1 Veteran

    Jul 22, 2004
    5,856
    NoNJ/Jupiter FL
    Full Name:
    Steve W.
    Two winters ago, when I pulled the engine on my '78 GTS, I installed a set of those plugs that I got from Scott. IIRC, the plugs were aluminum. I don't remember what I paid (I'm thinking around $75 delivered, but could be wrong), but they were a great product, fit perfectly, and no "chirping" noise when running the engine. Since this is a once in a lifetime installation, I would pay up to Verell's $150 to get a set of them (obviously cheaper is better). They made the conversion easy and did exactly what they were supposed to do. Compared with a lot of other parts for these cars, that's cheap enough to be well worth the investment, IMHO.
     

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