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Turbo charged Flathead???

Discussion in 'The Hokey Ass Message Board' started by 52ragtop, Jan 13, 2013.

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  1. Flat Ernie
    Joined: Jun 5, 2002
    Posts: 8,406

    Flat Ernie
    Tech Editor

  2. 40FordGuy
    Joined: Mar 24, 2008
    Posts: 2,907

    40FordGuy
    Member

    I'll add another element to the discussion.......Exh runs thru water jackets, true; What about converting one to exit the exhaust on top of the block.....There was a thread recently, showing a flattie with the exh ports on the top of the block. How would that work ?

    4TTRUK
     
  3. bodied620
    Joined: Nov 14, 2012
    Posts: 9

    bodied620
    Member

    how strong is the bottom end of the Pontiac straight 8's? I have considered something for my 53 but i was unsure on whether the bottom end would hold up...

    Opinions please
     
  4. Rusty O'Toole
    Joined: Sep 17, 2006
    Posts: 9,608

    Rusty O'Toole
    Member

    Packard had a 9 main bearing straight eight in the fifties. 327 or 359 cu in. State of the art angled valves like Hudson. Generous cooling passages around the exhaust valves. A good turbo, possibly off a Dodge Cummins diesel, might give good results.

    Bodied I think the Pontiac would do ok on the street with 5 - 10 lbs of boost in basically stock form. But if you wanted some serious power the Packard would be hard to beat.
     
  5. daddio211
    Joined: Aug 26, 2008
    Posts: 6,002

    daddio211
    Member

    There's always Hot Rod Packard who's a member here. Turbo'ed Packard straight 8 and he drives the hell out of it.

    I'll pm him and see I'd he'll chime in.

    Sent from my DROID device using the TJJ mobile app
     
  6. greenracer
    Joined: May 7, 2006
    Posts: 49

    greenracer
    Member
    from sequim wa

    There are a couple threads on here about this. I just did a search and the one started by KB88 has old pictures of my setup before it was finished on the first page and some more recent pics on the third page. There are also pics of other turbo charged flatheads throughout the thread.
     
  7. 52ragtop
    Joined: Nov 2, 2012
    Posts: 384

    52ragtop
    Member
    from Nebraska

    Greenracer,, Like your setup..
     
  8. daddio211
    Joined: Aug 26, 2008
    Posts: 6,002

    daddio211
    Member

    I think I'll have to eat my own words... Hot Rod Packard's car is blown, not turbo'ed.

    Sent from my DROID device using the TJJ mobile app
     
  9. 55willys
    Joined: Dec 7, 2012
    Posts: 1,664

    55willys
    Member


    Do a reverse flow cam on the flathead swapping the intake and exhaust. gets rid of the cooling problem and has better flow. The exhaust would come out of the top of the block directly into the turbos and the intake would be forced in on the outside of the block through the water jacket.
     
  10. Flat Ernie
    Joined: Jun 5, 2002
    Posts: 8,406

    Flat Ernie
    Tech Editor

    Now you're heating the intake! ;) You can't win!
     
  11. dechrome
    Joined: Dec 23, 2004
    Posts: 303

    dechrome
    Member

    Here is a 62 Olds turbo on a stock 40 Ford flathead. The idea was that you didn't need high compression or a radical cam. big valves etc. Plus the turbo was a $20 swap meet find.
    deChrome
     

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    Last edited: Jan 15, 2013
  12. Vergil
    Joined: Dec 10, 2005
    Posts: 785

    Vergil
    Member

    Flatty-EFI was installing four small ones on a flathead

    [​IMG]
     
  13. 28dreyer
    Joined: Jan 23, 2008
    Posts: 1,167

    28dreyer
    Member
    from Minnesota

  14. 38FLATTIE
    Joined: Oct 26, 2008
    Posts: 4,350

    38FLATTIE
    Member
    from Colorado

    Use A Caddy flathead, as the exhaust already exits out the top. Yes, the exhaust run right next to the intakes, so use an intercooler. More cubic inches than a Ford, stronger, and they handle HP and boost well.

    The FlatCad will get turbos next year, when we move to a lakester-I'll let you know how it turns out.
     
  15. saltracer
    Joined: Jan 4, 2006
    Posts: 293

    saltracer
    Member

    Back when I didn't know any better I bought a 1950 Merc with carb problems and I already had a Corvair Spyder (with turbo) that didn't run. I went to the muffler shop and made and intake, rerouted the exhaust and fired it up. Had no problems. Drove the car to Memphis for the 1974? Street Machine Nats. If I remember correctly the car would do 85mph with this setup. It started to smoke and the more stuff I put in it the worse it got. Pulled the whole engine and much later found out it was the rings that were stuck to the pistons.
     
  16. fastrnu
    Joined: Feb 26, 2009
    Posts: 739

    fastrnu
    Member
    from shelton,wa

    someone needs to contact all the people that have done it and let them know it wont work. Obviously no one told them!
    I propose an organized manhunt, termination and deletion of all existing information printed, digital, or cellulose showing Turbo Flatheads.
     
    3thirty6point7 likes this.
  17. daddio211
    Joined: Aug 26, 2008
    Posts: 6,002

    daddio211
    Member

    Ha ha ha ha...

    Sent from my DROID device using the TJJ mobile app
     
  18. daddio211
    Joined: Aug 26, 2008
    Posts: 6,002

    daddio211
    Member

    Nobody better tell Jack that this won't work. Met him today at the GNRS... what a REALLY cool guy!

    Ran a streamliner at Bonneville in '01 (I think) with a twin turbo flattie and got a red hat.

    His Model 40 is twin turbo'ed too!

    uploadfromtaptalk1359246585332.jpg

    uploadfromtaptalk1359246616155.jpg

    uploadfromtaptalk1359246737936.jpg

    uploadfromtaptalk1359246763976.jpg

    Sent from my DROID device using the TJJ mobile app
     
  19. krylon32
    Joined: Jan 29, 2006
    Posts: 7,503

    krylon32
    Alliance Vendor
    from Nebraska

    When I first started building hotrods in the 70s there was a guy who used to come to meets in our area from Kansas and he ran a turbo on a FH fueled by propane. As I remember it ran really good!
     
  20. V4F
    Joined: Aug 8, 2008
    Posts: 4,209

    V4F
    Member
    from middle ca.

    try jim briely on F.A.S.T. . he is a record holder with a blower on a banger ..........
     
  21. NickJT
    Joined: Jul 17, 2012
    Posts: 640

    NickJT
    Member
    from S.E. PA

    I'd love to ask him if he got inspiration from and/or used parts from the OEM twin turbo setup like on my rice burner Toyota. Here's that setup for comparison:

    [​IMG]

    That inline 6 cyl 186 c.i. motor now makes over 700 hp on pump gas with two Garrett turbos and my custom manifold setup and has proven plenty responsive enough for road racing.
     
  22. custommachinesIII
    Joined: Jan 28, 2013
    Posts: 13

    custommachinesIII
    Member
    from Belgium

    hello from belgium! i have some canadian flatheads, 1949 and 1951 and im busy preparing them for a overhaul...

    i want to add 1 or two turbo's depending on the carburators and airdisplacement

    for a 2psi pressure gain with turbos shoud 8:1 compression will do? and what should be the best cam for this idea? because of the overlap... but want also as much as extra lowspeed torque compaired with the original cam as possible.

    i have a crackless '51 canadian 8BA
    hardened exhaustseats,
    i want to bore it up to 3 5/16
    run the ford crank (3 3/4)
    16 chevy ex 1,5 valves
    stock alu '49 heads (also have the '51 castiron ones)
    cam not ordered yet, still have the good originals
    pistons not ordered yet, but asked rossracingpistons for some examples about this subject

    what do you guys think i have to alter/improve to make it work?
    should i relieve the block? alter the combustionroofs?

    it will end up in a '34 international dually pickup so not for racing but need to burn those four wheels :D
    [​IMG][/IMG]

    just new here and just young, just having radical ideas without the realistic experience..:eek::cool:
     
  23. Heo2
    Joined: Aug 9, 2011
    Posts: 661

    Heo2
    Member

    There was some one running a homebuilt turbo
    on a b engine on the lakes pre ww2 he later
    worked with turbocharging the p47 thunderbolt
    how thats for traditional?
    More traditional than laying frame,fake patina,
    custom 60s ramblers,
     
  24. daddio211
    Joined: Aug 26, 2008
    Posts: 6,002

    daddio211
    Member

  25. custommachinesIII
    Joined: Jan 28, 2013
    Posts: 13

    custommachinesIII
    Member
    from Belgium

    well, i figure the present way is tomorrows tradition, so because i live in Europe the parts of a traditional usa hotrod is very hard to find here, and buying in usa is pretttty expencive here. there are a lot of people there that wont sell to europe or even get money and never contact again, so if we are want to accially get the part we are allmost forced to buy from the official dealers. and i figure, hotrodding is also tune a engine up with the parts available around the local environment i can combine the two... i hope someone around here have some thoughts about it, or am i at the wrong topic?
     
  26. Beef Stew
    Joined: Oct 9, 2008
    Posts: 1,253

    Beef Stew
    Member
    from So Cal

    a very mild low boost setup (<7psi) would probably be fine for the street without having to go crazy on the motor. more boost means more money and more problems. the ford v8 flathead isn't the best example of an engine one would want to turbo and then expect it to work as well as a more modern eninge but yes it'll work.

    the biggest problem is all the additional heat in the exhaust. small turbos are nice for quick spool up and overall driveability but the smaller a/r turbine housings mean more heat in the exhaust and ford flatheads don't like that.

    really it comes down to setup and tuning. can you do it with a draw through carb? sure. blow through carb? yup. efi? yup. any of those will work... it just depends on what you want to spend and how well you'll be able to tune it. i wouldn't even dream of running any boosted engine without at least wideband AFR gauge. egt would also be a good thing to keep an eye on.

    i don't see reverse flowing a ford flathead helping anything. if anything, it'd make things worse. four cylinders sharing 3 intake ports means uneven fuel distribution to those cylinders that share a common intake port. at least in the regular port configuration the two cylinders that share an exhaust port are both penalized the same amount.

    the best way to do it would be to do the exhaust ports out the top like kong did (as well as the very fast main and stevens motors). four intakes and four exhausts per bank will equalize air flow and fuel distribution.

    but yeah, a mild low boost street setup would work well.
     
  27. oj
    Joined: Jul 27, 2008
    Posts: 6,270

    oj
    Member

    Its an inline 6 Hudson flattie - does that count?- its a buddies daily driver and it'll put a smile on your face!
     

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  28. turbostude
    Joined: Nov 8, 2006
    Posts: 342

    turbostude
    Member
    from minnesota

    Yes, See the websites below. The Stude 6 has 3" mains (a bunch) and with a good head (I made my own) and improved oiling can be indestructable. Assume a 75% volumetric efficiency for flatheads as you do the calcs for turbos. I can tell you that number is correct after turbocharging these motors and using a procharger on an 8BA.
    Use a stock cam profile, stick to about 8.5:1 CR and retard timing with boost. No intercooler is necessary under 15psi, and in fact would set you back. Run rich. Use a J&S safeguard. Bonneville engine is now in rather unusual 37' Stude 3-wheeler running on LPG (high octane for less $$$). The game is prevention of detonation by juggling advance/boost/AF ratio. There are tricks to deal with supposed turbo lag.
    Turbos looking almost like the TO-3 were available on tractors in about 1953, so, you could have built one then.
    [​IMG]
    [​IMG]
     
  29. classic L.B.
    Joined: Dec 28, 2010
    Posts: 83

    classic L.B.
    Member

    now thats 2 awesome.....need it for my chevy....whered ya come up with that?
     
  30. turbostude
    Joined: Nov 8, 2006
    Posts: 342

    turbostude
    Member
    from minnesota

    It all started with the Turbostude. Check out that site. It's 9 below zero here today. Your mind just gets go'in and.....
    [​IMG]
     
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