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Thread: 1969 Road Runner (first time turbo, budget build)

  1. #1
    Mitsu booster
    Join Date
    Oct 2013
    Location
    United States
    Posts
    1

    1969 Road Runner (first time turbo, budget build)

    Contemplating a turbo in my future possibly for my 451 BBM. Would the easiest method be to install a typical HP exhaust manifold upside down on the driver side/installing the turbo from here?

    I am no expert on turbos, can someone kind of school me on everything needed in a budget 76mm turbo build I may be overlooking.

    Looking at around 8.5-9:1 Compression.

    5-8psi boost. Do I need an intercooler at this level?

    I would switch to a Mopar 528 solid camshaft, as I could make up a majority of the power loss with the turbo. My camshaft is currently 272* dur @ .050, with a 106LSA (.590 solid). Head flow is 290/220 @ .600. 10.5:1CR. Victor Single Plane. Transmission is a 833 4-speed, DFX clutch. 4.10 Gear currently, would switch to 3.23. 30x12.5" ET STREETs on rear currently.

    Main Parts:
    This chinese turbo has nothing but good reviews on the turbo forums.. and is dirt cheap! Probably would use something like this (Ebay) ($265) (GT45 76MM)

    Turbonetics (Craigslist) Wastegate ($180):
    http://daytona.craigslist.org/pts/4057168453.html

    Aeromotive or Holley HP 150 fuel pump

    MP 528 solid camshaft (241* dur @ .050/112LSA) ($200 new).

    Custom head gaskets to lower compression ($150?)

    TiAL BOV (Ebay) ($225)

    Mechanical fuel pump BOP ($15)

    Aeromotive Boost Referenced regulator.

    MSD Boost timing retard box (ebay-used)($150)

    C-Body exhaust manifolds ($150 shipped)

    Front mount intercooler (Ebay, used/new) ($150):

    Cant see it costing more than this to modify my carb ($400).

    Basic Tuning ($400) (Maybe could eliminate this cost by tuning with a friend that has a 800rwhp turbo fox/700rwhp procharged fox as well)

    Odds-Ends-Fittings ($400?) (little things that just add up)

    Turbo piping fabrication ($500-600?) (This could be hardly anything if all I need to do is fab a downpipe through the fenderwell)

    Around $3000-$3200 total..

  2. #2
    Mitsu booster
    Join Date
    Dec 2005
    Location
    West Richland, WA
    Posts
    21

    Re: 1969 Road Runner (first time turbo, budget build)

    I would suggest looking at a dual turbo setup.
    EFI conversion would also be preferable to a blowthrough carb setup.


    Quote Originally Posted by Sweet5ltr View Post
    Contemplating a turbo in my future possibly for my 451 BBM. Would the easiest method be to install a typical HP exhaust manifold upside down on the driver side/installing the turbo from here?

    I am no expert on turbos, can someone kind of school me on everything needed in a budget 76mm turbo build I may be overlooking.

    Looking at around 8.5-9:1 Compression.

    5-8psi boost. Do I need an intercooler at this level?

    I would switch to a Mopar 528 solid camshaft, as I could make up a majority of the power loss with the turbo. My camshaft is currently 272* dur @ .050, with a 106LSA (.590 solid). Head flow is 290/220 @ .600. 10.5:1CR. Victor Single Plane. Transmission is a 833 4-speed, DFX clutch. 4.10 Gear currently, would switch to 3.23. 30x12.5" ET STREETs on rear currently.

    Main Parts:
    This chinese turbo has nothing but good reviews on the turbo forums.. and is dirt cheap! Probably would use something like this (Ebay) ($265) (GT45 76MM)

    Turbonetics (Craigslist) Wastegate ($180):
    http://daytona.craigslist.org/pts/4057168453.html

    Aeromotive or Holley HP 150 fuel pump

    MP 528 solid camshaft (241* dur @ .050/112LSA) ($200 new).

    Custom head gaskets to lower compression ($150?)

    TiAL BOV (Ebay) ($225)

    Mechanical fuel pump BOP ($15)

    Aeromotive Boost Referenced regulator.

    MSD Boost timing retard box (ebay-used)($150)

    C-Body exhaust manifolds ($150 shipped)

    Front mount intercooler (Ebay, used/new) ($150):

    Cant see it costing more than this to modify my carb ($400).

    Basic Tuning ($400) (Maybe could eliminate this cost by tuning with a friend that has a 800rwhp turbo fox/700rwhp procharged fox as well)

    Odds-Ends-Fittings ($400?) (little things that just add up)

    Turbo piping fabrication ($500-600?) (This could be hardly anything if all I need to do is fab a downpipe through the fenderwell)

    Around $3000-$3200 total..

  3. #3
    Garrett booster
    Join Date
    Jul 2008
    Location
    south east MO
    Posts
    144

    Re: 1969 Road Runner (first time turbo, budget build)

    they put turbos on 440s and 360s in motorhomes in the late 70s draw-thru setups but the rare and hard to find

  4. #4
    turbo addict
    Join Date
    Sep 2008
    Location
    Salt Lake City UT
    Posts
    1,603

    Re: 1969 Road Runner (first time turbo, budget build)

    Quote Originally Posted by mopar4ever View Post
    they put turbos on 440s and 360s in motorhomes in the late 70s draw-thru setups but the rare and hard to find
    i bought a uhaul style box truck with a propane powered 440 in it and it came with a draw through turbo system they through in the back., I sold that kit for more than i paid for the whole truck

  5. #5
    Hybrid booster
    Join Date
    Dec 2005
    Location
    Spokane
    Posts
    655

    Re: 1969 Road Runner (first time turbo, budget build)

    To start, is this a full tube chassis off road race car? If your building a 8 second chassis car I suppose a BB is in order. If not you may want to make more room and build a 318. Twins are also not a good plan, your steering and brakes are on the drivers side and get melted. The small blocks also make running a real distributor a lot easier, 88-92 TBI. Then just need a self tuning 4 barrel TBI. Get one with 85lb injectors and crank up the fuel pressure to at least 55 PSI. Hook up the 2 or 3 bar map and drive it to tune it.

    Just using a few 2.2 tricks can get you to 1000 WHP with a 318. You see them running around with 750 WHP and a carb. So done right with FI a 318 is the best street choice. Extra room and less weight is also nice.

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