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4.0 OHV into 4.0 24v COSWORTH

Discussion in 'Need for Speed!' started by Tobbe, January 13, 2007.

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    1. Tobbe

      Tobbe New Member

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      Hmm, did find a really cheap SOCH, maybe I'll pick that one up and have a closer look at it...... Besides, it's 207bhp enigne, maybe it just need some breathing help, 2xTT conversion might help it a bit.... It's getting to many projects in the garage soon,
      4.0 cosworth N/A
      2.9 TT cosworth
      3.5 BMW N/A
      2.0 Pinto turbo with dual spark.
       
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    3. Minivek

      Minivek Active Member

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      How are things coming along???
       
    4. Tobbe

      Tobbe New Member

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      Buying the car for the engine on saturday if everything goes as planned, it only weights 1210kg, so 0-60mph should be wrooooom. The head gaskets have been cut, still waiting for the copper for the firerings. Did never buy that SOCH, I got enough to do anyway. Got a slide inlet under construction, I have also bought a set of bigger injectors. Getting the pipes for the headers and exhaust next week. 42mm inside diameter, 60cm long, baffle collector, 2.5" from collector to where the sides meet up and then a 3" single pipe to the rear. Still need to find 6 air filters of correct size. Also thought of buying other springs and shockers for the car and also poly bushes all around. But maybe I should wait with this until I got the car rolling with the engine. I'll make some updates when I got some new pictures....
       
    5. Jakee

      Jakee Well-Known Member

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      Talks about a engine rebuild. Man, I'd be scared to death starting that thing up for the first time. Might end up smashing an atom or something.
       
    6. Tobbe

      Tobbe New Member

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      No worries... It will run nice without any problems:D I hope..... I just hope that the bottom end is up to the job. The parts in it is not as strong as the 2.9 cosworth bits.... Time will tell...
       
    7. Tobbe

      Tobbe New Member

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      The headgasket assembly.
      [​IMG]

      [​IMG]

      The copper fire-rings are still missing
       
    8. Tobbe

      Tobbe New Member

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      Did some work on it yesterday.

      [​IMG]

      [​IMG]

      [​IMG]

      [​IMG]

      If someone got a set of SOCH rods for sale let me know, I really need them I think...
       
    9. RealBIG

      RealBIG New Member

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      You must be kidding?
       
    10. Tobbe

      Tobbe New Member

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      Wise guy, I don't need that kind of posting....

      I recently found out that they are no stronger then the ohv ones. I am not familiar with the SOCH at all, never seen one, I've just heard that it was supposed to have better internals. Got some other stronger rods now. But I would like to buy a SOCH oil pan and oil pick up...... And I am not kidding.....
       
    11. Fredness

      Fredness Elite Explorer

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      He means about the spelling...

      It's Single Over-Head Cam or SOHC... but the rest of us know what you mean.
       
    12. 410Fortune

      410Fortune Snow Season Staff Member Moderator

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      I think what he meant is the SOHC doesnt use push rods

      "rods" in this case likely doesnt refer to rocker arm pushrods.

      Be careful when using SOHC internals in the OHV the pistons will really increase the compression ratio, I dont know all the details but its something to research

      the SOHC oil pan and windage tray have main bearing supports built in for the block I believe, you will need the pan and pickup tube, not sure what else is needed to bolt it on if anything
       
    13. hotweyer

      hotweyer New Member

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      SOHC parts

      Hi tobbe,
      just ran acrossed your post and I really nead to chat.
      I have been working on a cosworth SOHC combination for over two years and
      love to see others with the same interest.If there is any parts or info I can help you with send me a e-mail or post a reply.
       
    14. Rick

      Rick Pumpkin Pilot Staff Member Admin Elite Explorer

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      It's great to see someone thinking out of the box Tobbe. Can't wait to hear how it all works out for you.

      Good luck with the project:chug:
       
    15. hotweyer

      hotweyer New Member

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      cosy stuff

      Thank's for getting back to me.
      I am kinda slambed at the shop today so I dont have time to chat right now .
      I will deffinitely be in touch.I have alot of questions.
       
    16. Tobbe

      Tobbe New Member

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      Got me a set of these,
      [​IMG]
      And I have also increased the bore a bit.......
       
    17. hotweyer

      hotweyer New Member

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      cosy stuff

      Hey Tobbe,
      Thats great you got the rods,They look like an Eagle H beam.The loook plenty strong but a little heavy.The rods I have been using are I beam C&A,
      about 540 grams.We have the made special and are about 120.00 a rod.US.
      It,s great you have the pieces to move forward on your project.Would really like to see it come together and what kind of HP you get out of it.I am still working on the BOA setup But am finding out why The BOB heads are the better choice.I picked up the PushRod block because of how many changes we would of had to make to the heads to make them work on a SOHC block.
      If I get a hold of your friend I will be better off than if I try to get more parts and info from Cosy.
       
    18. jwrezz

      jwrezz Elite Snow Shoveler Elite Explorer

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      subscribing. This is way too cool not to keep up on!
       
    19. Tobbe

      Tobbe New Member

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      Getting closer every day now:D

      [​IMG]

      The rods are Procomp 6" for chevy SB, modified to accept ford crank and rod bearing and also a 24.005mm wrist pin (not stock pin).

      The wrist pin is custom made out of 4340 steel, 61-62 HRC hard.... (try to kill it with a hammer and you'll see which of them will break first;) )

      The piston is of own design, cr 10:1

      Cory, I won't be reving much more then 6000rpm so Don't worry about the weight, the engine will be boosted in the future so the bottom end is be built for that. There is enought material in the piston heads to decrease the CR.... By the way, was Dave able to help you?
       
    20. Tobbe

      Tobbe New Member

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    21. Halfnuts

      Halfnuts Active Member

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      Are those lifters in the top pic, or just dummies installed for the purpose of filling the holes? I thought this was a DOHC project...:p:
       
      Last edited: June 17, 2007

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