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Thread: 8 inj YB cosworth Mk1 escort daily driver

  1. #1
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    8 inj YB cosworth Mk1 escort daily driver

    Thought it was time to start a thread for my Mk1 Escort road car....

    I have this Mk1 coupe shell, plus these bits:

    Fuel injected 8 injector n/a YB cosworth engine
    dry sump system
    quaife 5 speed gearbox
    floor mounted pedal box
    adjustable lower control arms
    steel forest arch flares
    MoTeC M800 ECU, PDM and Dash
    Group 4 kit

    Some images of the before

    This is the car when I got it.
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    Here is the engine as it is going in the car
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    Here is the car as it is now.
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    The engine was just going to get a freshen up and put in the car, but the rebuild has found that 10 years of racing the engine has worn it a little, so down to Salibas for a rebore on the 205 block, and some new custom pistons.

    The pistons getting made by Pure Performance in Dandenong. havent used them before, hopefully he does a good job. Couldnt get off the shelf pistons, as the ones in the engine now were custom made for long rods, and a smaller than standard little end on the argo rods... So the only way to replace them was a new set of custom pistons.

    The pedals are from a Panoz Lemans car, with an FTR floor mount.

    have just finished cutting off the guards, and the front bubble to get the shell ready for paint stripping.

    was going to dip the shell, but a $4000 bill for dipping the car, plus a trip to Albury to do it seem to have put a damper on that.
    So probably off to the soda blasters like i did with my IPRA car... Suggestions on that one?

    -Jamie
    Last edited by cossie55; 06-05-14 at 11:21 PM.

  2. #2
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    The engine looks ...... serious.
    Have to be on the healthy side of 300 hp?

  3. #3
    no mods, leave it stock Jack Nicholson's Avatar
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    Fuck yeah!

  4. #4
    weirdo F|sh's Avatar
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    that is a serious bit of kit! Very jealous of that engine!!
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  5. #5
    This space left blank Ben Wilson's Avatar
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    Quote Originally Posted by cossie55 View Post
    was going to dip the shell, but a $4000 bill for dipping the car, plus a trip to Albury to do it seem to have put a damper on that.
    So probably off to the soda blasters like i did with my IPRA car... Suggestions on that one?
    As long as the blaster knows what they are doing it should be OK. A mate got a mk1 shell blasted a few years ago and it suffered a bit of panel warping, but it was a rally car so no big deal...
    Imagination is more important than knowledge.

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    Registered User jimmyg's Avatar
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    Bead blast it maby? Comes up a treat.

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    Down with ma homies Greg Rust's Avatar
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    Very good start.
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  8. #8
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    That engine is like 11ty billion KG's of sexual chocolate.

    Me rikey.

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    I know a few guys using PPM pistons/rods/cranks in high power applications and they are very happy with the parts.
    Ban low performance drivers not high performance cars

  10. #10
    Opens Guido's Avatar
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    Sensational. So the driveline from your old sports sedan?
    Rust is lighter than carbon fibre.

    My Italian 510

  11. #11
    Slanted big_pete's Avatar
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    Fuck. YES!

    Always wanted a Cossie engine in a Mk2 Esky

  12. #12
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    The engine is probably closer to a genuine 250hp, not 300. 300hp from an aspirated 2 litre is often talked about, but from my experience, it is quite hard to achieve. I have worked on a few super tourers that have had close to 300hp, and they have enormous lift CAMS, top dollar valve springs that are thrown out after every race meeting, and enormous amounts of development in ports, valves, exhausts, inlets etc...

    With only 250hp, I did race this engine in my sports sedan, and in a straight line, basically nothing could stick with the car, so it is a healthy 250.

    Having said that, when I sold the race car, I put an SR20 NA in the car with race cams, pistons, porting etc, and ended up at about 240hp for about 1/4 of the cost of the YB!

    trying to find brand new guards at the moment so that I can cut them up and put the steel forest arch flares on them. I dont want to wast the work on old guards....

    -Jamie

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    GOTCHYADICKINAGIN Hjtonner's Avatar
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    noiceee will be watching this

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    Registered User Mr Purple's Avatar
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    Quote Originally Posted by Jack Nicholson View Post
    Fuck yeah!
    This was my first thought as well!

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    Moderator Cal's Avatar
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    Registered User Gussy's Avatar
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    Wow. Fantastic.

    I know the old RS500's had an 8 injector set up (albeit for turbo power and 4 weren't connected for the road cars) but why 8 injectors on an NA set up? Would 4 bigger injectors not do?

  17. #17
    Registered User agentcrm's Avatar
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    Quote Originally Posted by Gussy View Post
    Wow. Fantastic.

    I know the old RS500's had an 8 injector set up (albeit for turbo power and 4 weren't connected for the road cars) but why 8 injectors on an NA set up? Would 4 bigger injectors not do?
    4 for low rpm, 4 for high rpm at a guess.

    Rally car spend more time between stages where low end drive ability & fuel economy matter more than power.

  18. #18
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    Injectors in the head are good for part-throttle operation but don't give quite enough inlet length for cooling.
    Injectors out in the ends of the trumpets are good for full-throttle operation and give around 3% - 5% more power but at low-throttle the fuel tends to puddle around the butterfly and so the engine runs like shit. So the best solution is to have both. The blending of them in the fuel maps is very tricky, but I have no doubts that cossie55 can do all that stuff quite well.

  19. #19
    are hairy Dogsballs's Avatar
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    i like the original car
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  20. #20
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    Must. Not. Fap.

  21. #21
    Anti-drifter XAC15T's Avatar
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    This vehicle is relevant to all my interests.
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  22. #22
    Owns a bucket no13b_Coupe's Avatar
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  23. #23
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    Very cool
    how streetable will that engine be.

  24. #24
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    nice!

    Out of rude curiosity, what are the custom pistons costing you?

    Just checking out PPM's website, looks like they have the capacity to do some pretty neat stuff!
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  25. #25
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    O_o

    such a nice combo.

  26. #26
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    Custom pistons costing $1300 - so about the normal price for that sort of thing.

    the engine is dropping comp from 12.5 to 11.0 to help with detonation on the street using 98. I think that the engine will be a pig on the street, but only one way to find out!

    8 injectors, you guys are already on it. Better throttle response on the low injectors, more power on the High, backed up on the engine dyno.. the ECU transitions between the 2 sets around 4000rpm.

    Also, high injectors only is known to start airbox fires, from experience in V8 supercar land. So when I am in overrun, using any speed limiters, or driving slowly, it is much safer to use the low injectors.

    This is the car that the engine came out of...
    Click image for larger version. 

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    Last edited by cossie55; 07-05-14 at 04:09 PM.

  27. #27
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    Quote Originally Posted by cossie55 View Post
    the ECU transitions between the 2 sets around 4000rpm.
    When I eventually get around to putting together the Starlet 9AFE I'm going to have to talk to you about how to do the transitions properly. I've got my own ideas but McCoy thought otherwise last time I talked to him about it.

  28. #28
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    There ended up being no real secret to it with M800. You just have to transition over a reasonable RPM and throttle range. Transition too quickly, and you can get hesitations. I mainly played around with the transition range to get it smooth. Steady state with any mix of high and low injectors works fine, it is only tricky during fast transition.

    I believe that in the the M1, a lot of work has gone into this area to make the FT86 with Di and high injectors transition smoothly.

  29. #29
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    Such an angry street car it will be. Much awesomeness will prevail.
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  30. #30
    Down with ma homies Greg Rust's Avatar
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    Do you have to cut any internal panels to make this setup fit the engine bay?
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