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Thread: Found an old MP 5 keyway cam sproket

  1. #1
    Rhymes with tortoise. Turbo Mopar Staff cordes's Avatar
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    Found an old MP 5 keyway cam sproket

    Is it worth doing anything with? I didn't even know I had it. It's round tooth, so it might be cool to put on my Lancer just to have it on there, not that you can tell once it's installed.

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    Supporting Member II Turbo Mopar Contributor
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    Re: Found an old MP 5 keyway cam sproket

    Quote Originally Posted by cordes View Post
    Is it worth doing anything with? I didn't even know I had it. It's round tooth, so it might be cool to put on my Lancer just to have it on there, not that you can tell once it's installed.
    Would you be so kind to take and post a picture? I would like to see the beast
    Regards,
    Miles

    DD '87 Sundance T1, 12PSI, SLH with rear disks
    '87 CSX #432

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    Supporting Member II Turbo Mopar Contributor tryingbe's Avatar
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    Re: Found an old MP 5 keyway cam sproket

    I sold mine to get a Fidanza to save some weight.

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    Rhymes with tortoise. Turbo Mopar Staff cordes's Avatar
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    Re: Found an old MP 5 keyway cam sproket

    Quote Originally Posted by chromguy View Post
    Would you be so kind to take and post a picture? I would like to see the beast
    Will do.

    - - - Updated - - -

    Quote Originally Posted by tryingbe View Post
    I sold mine to get a Fidanza to save some weight.
    Do you know what the weight savings is? I was actually holding it in my hand thinking about how one could machine some weight out of it...

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    Supporting Member Turbo Mopar Contributor iTurbo's Avatar
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    Re: Found an old MP 5 keyway cam sproket

    I've had Fidanza cam sprockets for our cars and it is amazing how light they are being all aluminum. I wish that were possible for the TIII, but impossible considering the cam sensor functionality.
    87 Shelby Lancer #127
    91 Dodge Spirit R/T
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    Supporting Member II Turbo Mopar Contributor Dr. Johny Dodge's Avatar
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    Re: Found an old MP 5 keyway cam sproket

    I had a square tooth one - sold it - still new a few years ago
    sadly it's just labour intensive enough I never got around to "playing" with my 314 cam settings ...that's where the adjustable set up would rule

    always thought it was a far better way than the offset keys that in reality are simply already sheared off by a convenient amount that changes cam timing (ich)

    but nice piece to just "happen" to have handy
    "free & already have in the basement" beats "could have" everyday and perfect really for any "set it and forget it "build

    also I sense now that you mention it a wave of PM's might swing your way lol

    I can't be the only one resisting the mental buy it now button flashing bright red in my head ...triggered in your posting lol
    Last edited by Dr. Johny Dodge; 05-19-2019 at 10:32 PM.

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    Moderator Turbo Mopar Staff Vigo's Avatar
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    Re: Found an old MP 5 keyway cam sproket

    I think i have a round tooth and a square tooth one. The round tooth one is on my 90 Caravan that went 14.06 on almost stock everything. I think i retarded the cam 6 degrees.

    Dont push the red button.You hear me?

  8. #8
    turbo addict
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    Re: Found an old MP 5 keyway cam sproket

    Quote Originally Posted by cordes View Post
    Will do.

    - - - Updated - - -



    Do you know what the weight savings is? I was actually holding it in my hand thinking about how one could machine some weight out of it...
    IIRC, when I had the Fidanza Masi cam pulleys made up it was a weight savings of around 46% of a stock Masi pulley. Stock Masi pulleys (because of them being milled down .090 or so), are a bit lighter than a 8V pulley.
    Todd

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    Supporting Member II Turbo Mopar Contributor tryingbe's Avatar
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    Re: Found an old MP 5 keyway cam sproket

    Quote Originally Posted by cordes View Post
    Do you know what the weight savings is? I was actually holding it in my hand thinking about how one could machine some weight out of it...
    Don't have the numbers. Probably 6-8 oz, judging from below thread.

    But Shadow considered it enough to use Fidanza for his intermediate shaft.
    http://www.turbo-mopar.com/forums/sh...=1#post1116732

    - - - Updated - - -

    Quote Originally Posted by iTurbo View Post
    I've had Fidanza cam sprockets for our cars and it is amazing how light they are being all aluminum. I wish that were possible for the TIII, but impossible considering the cam sensor functionality.
    http://www.turbo-mopar.com/forums/sh...e+shaft+pulley

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    Supporting Member Turbo Mopar Contributor supercrackerbox's Avatar
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    Re: Found an old MP 5 keyway cam sproket

    I think I got like $80 for mine on Ebay, but that was nearly a decade ago.

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    Rhymes with tortoise. Turbo Mopar Staff cordes's Avatar
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    Re: Found an old MP 5 keyway cam sproket

    Quote Originally Posted by 4 l-bodies View Post
    IIRC, when I had the Fidanza Masi cam pulleys made up it was a weight savings of around 46% of a stock Masi pulley. Stock Masi pulleys (because of them being milled down .090 or so), are a bit lighter than a 8V pulley.
    Todd
    Thanks for that info Todd. That would be an attractive way to shave a little rotating mass while making life easier when it comes to adjusting cam timing. I'll have to give those another look.

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    Rhymes with tortoise. Turbo Mopar Staff cordes's Avatar
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    Re: Found an old MP 5 keyway cam sproket

    Here is the photo of the cam gear. It's pretty standard fair with the exception of having multiple keyways.

    Click image for larger version. 

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  13. #13
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    Re: Found an old MP 5 keyway cam sproket

    cools thanks
    Regards,
    Miles

    DD '87 Sundance T1, 12PSI, SLH with rear disks
    '87 CSX #432

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    Super Moderator Turbo Mopar Staff 135sohc's Avatar
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    Re: Found an old MP 5 keyway cam sproket

    I wonder how accurate it really is ?
    1994 Shadow Sedan. 2.2 N/A, A568 355,000 miles. (In the family since new).
    1987 Shelby CSX #418. Long term rebuild and restore.

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    Rhymes with tortoise. Turbo Mopar Staff cordes's Avatar
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    Re: Found an old MP 5 keyway cam sproket

    Quote Originally Posted by 135sohc View Post
    I wonder how accurate it really is ?
    That's a good question. I'm not even sure how one would go about installing it correctly. I can only imagine that you're supposed to line it up on the 0* mark and then pull it back off, reinstalling it either advanced or retarded to what you want, then install the belt?

  16. #16
    Supporting Member II Turbo Mopar Contributor Dr. Johny Dodge's Avatar
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    Re: Found an old MP 5 keyway cam sproket

    yeah that's the labour intensive part of trying multiple adjustments with that pulley

    & when it runs good and you drive it everyday finding time is harder than one might think

    - the multi slot pulley and the old MP "314 turbo" cam would be killer set 2* retarded in a turbo dakota
    314 cam has a hell of an extra top end pull just "straight up" with the stock pulley

    but you only seem to notice it if the engine's pulling "extra" load and prevented from freely screaming up it's rpm range
    like a big hill or a heavier vehicle

  17. #17
    Supporting Member Turbo Mopar Contributor iTurbo's Avatar
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    Re: Found an old MP 5 keyway cam sproket

    Quote Originally Posted by tryingbe View Post
    Don't have the numbers. Probably 6-8 oz, judging from below thread.

    But Shadow considered it enough to use Fidanza for his intermediate shaft.
    http://www.turbo-mopar.com/forums/sh...=1#post1116732

    - - - Updated - - -



    http://www.turbo-mopar.com/forums/sh...e+shaft+pulley

    As much as I wish that lightweight aluminum TIII camshaft sprockets were a real thing...
    I'm surprised I missed that. But I still have very big doubts about that ever actually working with TIII electronics. It would be fine for the exhaust cam gear, but not the intake which is what the cam sensor reads. It needs a ferrous material like the stock cam gear (sintered iron) and notches to read. It won't work with aluminum. It might have worked for Simon, but he was running a distributor and not TIII electronics. I have bought many sets of adjustable TIII cam gears from FWDP and there is a reason that the inner part is aluminum and the outers are still iron (where the sensor reads).

    Heck, I have a TurbosUnleashed TIII aluminum flywheel. I had to send it back because even though it had notches, I knew it would never work! Chris did take it back and they put a 'flame spray' nickel coating on the outer perimeter. I hope it works. I didn't realize at the time I was the guinea pig. A magnet just slightly is attracted to the coating. A far cry from an actual steel (OEM) flywheel. Will I ever use it? I dunno....that is a lot of work to go through and find out that it won't even start or it breaks up at high RPM. It would be a fine flywheel for an 8v car but I wouldn't bother with a TIII. I guess I thought that there might be some steel pressed ring with the notches incorporated into it, but nope, just notches in aluminum. It's actually kind of funny any body thought that would actually work.

    You know that thing they call a 'hall effect pickup' inside the of TI/TII distributors? Well that is exactly what TIII cam/crank sensors are.
    Last edited by iTurbo; 05-27-2019 at 05:31 AM.
    87 Shelby Lancer #127
    91 Dodge Spirit R/T
    08 Dodge Caliber SRT-4
    86 Dodge Omni GLH Turbo

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    Supporting Member II Turbo Mopar Contributor Dr. Johny Dodge's Avatar
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    Re: Found an old MP 5 keyway cam sproket

    could you drill it at each "tab" location and install a small iron grub screw ?


    www.ebay.ca/sch/i.html?_nkw=grub%20screw

    most here seem stainless but I did google bicycle parts for the example ..

    steel ones should not be difficult to find

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