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Thread: 2L Pinto- Crane Roller Cam- Weber 50's

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    2L Pinto- Crane Roller Cam- Weber 50's

    This is the results of my most recent build

    The spec is
    2050 Pinto
    136mm PEC I-Beam rods
    Woosner pistons
    Ported head (44.5mm inlets 38mm exhausts valves)
    12:1 compression ratio
    Crane roller cam 260 degrees duration @ 50thou lift
    Esslinger Valves.
    Custom tuned distributor from Jason (Rwd fords rule)
    Cranks scraper from Jason (Rwd Fords rule)
    Standard Pinto Crank triple doweled to flywheel.
    Modified Twin 50 carbs
    Tuning in the car by RWD Fords

    There was only one power run on the dyno with no tuning




    A little in car from the sligo Rally

    http://www.youtube.com/watch?v=l22-tRzHMww


    Tom



    To finish first, you must first finish

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    Re: 2L Pinto- Crane Roller Cam- Weber 50's

    Impressive

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    Re: 2L Pinto- Crane Roller Cam- Weber 50's

    The cam was timed with 6 degrees advance to give better low down torque at the expense of peak power. If it was retarded a few degrees I think that the 200bhp would have been possible.

    The dynamic compression ratio was also a bit low so a higher compression ratio or a cam with different timing would have perked up the figures quite a bit also.

    Tom
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    Re: 2L Pinto- Crane Roller Cam- Weber 50's

    Nice work Tom very good porting work on the head, 13 to 1 would add a lot of torque all the way up with that cam esp low end but she's going like stink as it is with a nice spread of power
    "Horsepower sells cars, torque wins races" - Enzo Ferrari

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    Mechanic

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    Re: 2L Pinto- Crane Roller Cam- Weber 50's

    Well done! Did you end up sourcing the cam blanks? Is this the profile you will be making copies from? Where do I sign up?

    Shaun

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    Re: 2L Pinto- Crane Roller Cam- Weber 50's

    I bet that is nice to drive... All the way to 8000

    Nice torque.

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    Re: 2L Pinto- Crane Roller Cam- Weber 50's

    Quote Originally Posted by escortinadriver View Post
    Well done! Did you end up sourcing the cam blanks? Is this the profile you will be making copies from? Where do I sign up?

    Shaun
    Hello Shaun,

    Sorry, I meant to respond to you about the cam blanks.

    This is the original cam that I wanted to get copies made from. The thing about this cam is it could be better. The timing is not optimal for 12:1 compression ratio so I had to advance the cam a lot to get the dynamic compression ratio in the ball park. With the same duration and different timing it would have 5 or 6 lb/ft more torque and the revs torque would hold on possibly even longer to give better peak power. The other problem with this cam is it is cast so there is a slight risk that it may break with the high spring pressure and revs.


    I was able to source a few places to get custom billet cams machined and a few to do cast roller cams. Jason (RWD_fords) on here will be doing a cam kit in the near future which should be a flyer with the correct head and exhaust setup. I will go through my email and post the cam companies in the next while.

    Tom
    To finish first, you must first finish

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    Re: 2L Pinto- Crane Roller Cam- Weber 50's

    Quote Originally Posted by M11rf View Post
    I bet that is nice to drive... All the way to 8000

    Nice torque.
    I have not actually driven the car but it does go well. Pulls from quite low revs all the way to 8000.
    To finish first, you must first finish

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    Re: 2L Pinto- Crane Roller Cam- Weber 50's

    very nice, i love a good pinto
    its not dead till it's buried!


    T.I.T engineering. "Feel the power!"

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    Re: 2L Pinto- Crane Roller Cam- Weber 50's

    Small video of the rolling road.

    To finish first, you must first finish

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    Re: 2L Pinto- Crane Roller Cam- Weber 50's

    Hey lads, This is my motor btw

    Just said id ad to this, Top job by Tom and Jason on this engine, 2 very knowledgeable fellas ! It really feels and sounds like a 16v.
    It pulls from practically noting, ok its on huge carbs so naturally enough it will bog down on wot below 2000rpm after that though it really is a gem.
    A wee confession.......rev limit is 8200 really is nice to have them extra few revs between corners if needed.

    Vid of it on the rollers, didn't limit it in this one.

    http://www.youtube.com/watch?v=64N-p...1&feature=plcp


    Cheers again to the lads, cant wait for the next development of this to try and keep the millington boys on their toes


    *EDIT* HA HA, you bet me to it on the Vid Tom
    Last edited by MEX8O9P; 01-10-2012 at 00:17.

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    Re: 2L Pinto- Crane Roller Cam- Weber 50's

    Thanks Enda,

    Really great to see the engine in action and some good results. A little more torque at low revs would have suited the sprints better but the wide power band gets the car going well on the rally stages. Some great driving on the sligo stages.

    TOm
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    Re: 2L Pinto- Crane Roller Cam- Weber 50's

    Video of the car with roller pinto in action this year in Mayo.

    http://www.youtube.com/watch?v=3pS4nri4k1g

    Potentially 10th overall but for a puncture on stage 6 which lost 4 minutes.

    Also lost a bit of time here after passing an EVO on the stage

    http://www.youtube.com/watch?v=WhsskhzaxrM
    To finish first, you must first finish

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    Re: 2L Pinto- Crane Roller Cam- Weber 50's

    What is the Final Drive Ratio, please.

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    Re: 2L Pinto- Crane Roller Cam- Weber 50's

    Axle has a 5.14 CW+P ZF LSD 2.8 shafts, grp4 studs

    Stage 8 from the last rally:

    "Horsepower sells cars, torque wins races" - Enzo Ferrari

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    Re: 2L Pinto- Crane Roller Cam- Weber 50's

    Video outside the car in the Sligo Rally last year:

    "Horsepower sells cars, torque wins races" - Enzo Ferrari

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    Re: 2L Pinto- Crane Roller Cam- Weber 50's

    Thanks, very nice Car.

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    Re: 2L Pinto- Crane Roller Cam- Weber 50's

    Small update on the roller engine which still lives and gets better.

    Engine recently rebuilt and after a few years of trouble free service. Needed a new valve and some rework on the port filler. One piece had dislodged and disappeared out the exhaust.(not good but no damage done.)

    Engine is now on throttle bodies

    Not sure if the video can be seen but the following is a link from Facebook

    https://www.facebook.com/photo.php?v=662729797138178



    Only have the dyno plot from the first run but finally made 205bhp and 166lbft torque.
    To finish first, you must first finish

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    Bodger

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    Re: 2L Pinto- Crane Roller Cam- Weber 50's

    Hi group4 mark2 what fuel did you use.

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    Re: 2L Pinto- Crane Roller Cam- Weber 50's

    Hi,

    Due to the cam design (Low dynamic compression ratio) then engine would run on standard unleaded without too much difficulty. However for safety it was normally run on 101 Octane.

    Recently the engine has been updated to 2.1L so the compression is up to around 12:1 so 101 all the time now.

    Recently the engine has been dynoed at 217bhp and 181lb/ft. Very happy with that
    To finish first, you must first finish

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    Re: 2L Pinto- Crane Roller Cam- Weber 50's


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    Bodger

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    Re: 2L Pinto- Crane Roller Cam- Weber 50's

    great result cheers mario.

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    Re: 2L Pinto- Crane Roller Cam- Weber 50's

    Quote Originally Posted by Group4_Mark2 View Post

    Recently the engine has been dynoed at 217bhp and 181lb/ft. Very happy with that
    Tom,

    Have you got a contact for Jason?
    Did he finish the cam package? Still based on the on from Dave in the states?
    PM me if preferred.

    Thanks.

  29. #24
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    Re: 2L Pinto- Crane Roller Cam- Weber 50's

    Hi,

    I sent you a PM but Jason can normally be found on Facebook https://www.facebook.com/jasonmc777

    Regards
    Tom

    Regards
    Tom
    To finish first, you must first finish

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