300HP 308 Engine | FerrariChat

300HP 308 Engine

Discussion in 'Technical Q&A' started by donaldh2o, Dec 5, 2003.

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  1. donaldh2o

    donaldh2o Karting

    Nov 10, 2003
    Irvine CA
    Full Name:
    Came across this 308 race engine. Shown with fuel injectors, it was later reverted back to the four original Weber carbs for better performance.

    1. Heads were reworked and flowed.
    2. Competition cams were installed.
    3. New Manley valves were installed.
    4. New Wiseco pistons and connecting rods were installed.
    5. A sixteen quart oil reservoir was installed in the same location as the passenger side gas tank (Not necessary for street use.)
  2. Cooly0

    Cooly0 Karting

    Nov 2, 2003
    Full Name:
    How Much? I Want! but probably more than I can afford right now
  3. Dave

    Dave F1 Rookie

    Apr 15, 2001
    Little Rock
    Full Name:
    David Jones
    "reverted back to the four original Weber carbs for better performance"

    Now don't get me wrong, because I love weber carbs,
    but a properly setup FI system will out perform the original Weber 40 DCNF carbs.
  4. snj5

    snj5 F1 World Champ

    Feb 22, 2003
    San Antonio
    Full Name:
    Russ Turner
    Pretty cool. Any links to specific details - carb jetting, cam type, compression ratio?

    With all the 300hp 308 threads on this and the old board, we can safely say that a normally aspirated 300hp 308 engine is a holy grail of street Ferrari engines. I think FChatter Philip Airey is one of the closest with his P-6 cammed 308.

    We want details! :)
  5. ricrain

    ricrain Karting

    Nov 1, 2003
    Dallas Area
    Full Name:

    I'm fairly certain that this is the engine that ended up in Miles McAndrew's GT4 race car project.

    see http://members.tripod.com/~ferrari308gt4/gt4comp.2.html
  6. pma1010

    pma1010 F1 Rookie

    Jul 21, 2002
    Full Name:
    Maybe it is just me, but I can't see the image you've tried to paste.
  7. LouB

    LouB Formula 3

    Apr 15, 2001
    FL, OR
    Any dyno charts? Any data on torque?
  8. tifosi12

    tifosi12 Four Time F1 World Champ
    Lifetime Rossa Owner

    Oct 3, 2002
    @ the wheel
    Full Name:
    Philip's car is cool, no question, but I think Mike E. 308 sets the bar. Dunno what his numbers are, but with his latest blower he is way past the 300 hp line. Probably around 350 or so. He is DA MAN!

    Can't wait till he has his blower avail as a kit.
  9. mk e

    mk e F1 World Champ

    Oct 31, 2003
    The twilight zone
    Full Name:
    The Butcher
    A naturally aspirated 300 hp 2V 3.0 liter engine street engine is pretty good. I cheated, so it doesn't really count. It's much hard to make hp the without boost. My car on a dyno with the old blower system at 10 psi made 250 ft-lb touque @ 5000, 304 hP @ 6800, both rear wheel numbers, so about 290 & 352 at the crank. I haven't dyno'd it with the new stuff (intercooler and 21 psi), but driving it, it's making quite a bit more now. I think about 600-620 crank hp, I'll post graphs when I get them, but it looks like it won't be until spring now that the snow is flighing here.

  10. Sloan83qv

    Sloan83qv F1 Rookie

    Mar 8, 2001
    with BIG Dave M.
    Full Name:
    Little Dave M.
    Miles McAndrew's GT4 race car project belongs to Martin at Cavillino Motors and the car is currently in Sarasota as a "long term" project to get back on the track again. The photo looks like the engine in the car.

  11. donaldh2o

    donaldh2o Karting

    Nov 10, 2003
    Irvine CA
    Full Name:
    It is the Miles McAndrew's GT4.

    I think just doing the head work he did would substantially improve the performance of the engine. I don't know what he did. It just says "heads were reworked and flowed."

    I have different cams in my '76 308 and they sure make a difference. I don't know what they are, the local Ferrari shop did it. I'll look in the service records and see if I can out what the are.

  12. snj5

    snj5 F1 World Champ

    Feb 22, 2003
    San Antonio
    Full Name:
    Russ Turner

    Would love to see the details on those cams
    many thanks!

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