Cam Phasing - An Easier Way - Page 2

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  1. #16
    Junior Member Array saltfever's Avatar
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    Quote Originally Posted by eschaider View Post
    . . . If I am not mistaken, Kirk, you have an '99 Cobra long block. If I you do, that is a special version of the Teksid block. That particular block uses the 9 mm side bolts like a WAP block and has the nice more robust square edged looking main caps like a WAP block.
    Ed I have Teksid blocks with jack screws. I also believe the main caps are powdered metal (please correct me if wrong) which is one of the reason I am considering steel main caps. The other reason is I don't like aluminum caps due to thermal expansion and the very long pulls it must endure.

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  3. #17
    Junior Member Array saltfever's Avatar
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    Quote Originally Posted by rainyp71 View Post
    Hey man, I know MMR makes billet aluminum caps for them. Plan on running them on my Aluminator block.
    Thanks for the information, Rainy. I am sure the MMR caps are excellent. However, I don't like aluminum caps for my application. A WOT, full pull can be at least 3 minutes and the thermal growth of aluminum is problematic.

  4. #18

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    Quote Originally Posted by eschaider View Post
    Everything Russ said is spot on saltfever.

    Ford and the aftermarket do make two different primary chains for 4.6L engines. One chain is for the 03/04 SVT Cobra and the other is for everything else. The Cobra chain is referred to as a fine finish chain but beyond chain finish it is constructed differently. Here are pictures of the two side by side,

    Attachment 170239

    The chain on the right is the proletariat grocery getter model. The chain on the left is the fine finish 03/04 SVT Cobra chain. The two should be distinguished by the vehicle vin code. The Cobra code is VIN Y. Be sure to do a visual check before you leave the store.

    A bit more trivia that is helpful is discriminating between the two. If you look in the picture the fine finish chain has 8 links and the proletariat chain has 9. The fine finish chain groups its links in pairs of two and the proletariat chain sometimes does and other times does not. Even though the fine finish chain has one less link it is the stronger chain. My guess, and it's only a guess, is that the links may be made of a higher strength steel and possibly are thicker. Without measuring the two side by side, link thickness is hard to tell from the picture but does appear to favor the fine finish chain.


    Ed
    Does anyone have a part number that is verified for the polished chains? I looked on the Advance Auto parts site and their photo of the Cobra VIN Y chain looks to be but not sure if it is what I will receive. Their PN is A5100324084OEA. All others look to be the standard 4V Ford replacement 5W7Z-6268-AA. Thanks.

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  6. #19

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    Accufab is trustworthy.

    Not always the least expensive but always the right stuff at a reasonable price. You should not have any doubts about what they say or sell. Quality people, quality operation, quality parts.


    Ed

  7. #20

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    Quote Originally Posted by eschaider View Post
    Accufab is trustworthy.

    Not always the least expensive but always the right stuff at a reasonable price. You should not have any doubts about what they say or sell. Quality people, quality operation, quality parts.


    Ed
    Ed, Dhenderson,

    These look to be the correct chain to me.

    https://accufabracing.com/ford-mod-m...ng-chains-ford

    Also, on RockAuto Cloyes Part No. C387 or Melling 387 look to be correct as well. Fraction of the price from Accufab. I have attached a photo.

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    Last edited by rainyp71; 07-21-2019 at 05:55 PM.

  8. #21

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    Robert,

    The chains you have found at RockAuto have (for the most part) the correct image in the picture. They are not organized by Ford VIN number. Most resellers use VIN number for positive identification.

    That said the Cloyes picture seems correct although they do not make the VIN number association. The Cloyes picture seems to show the outer face of the chain as not having the same fine finish that OEM Ford chains for the engine have — something to be cautious about. The other place the fine finish was originally used was on the face of the plates to make for a more supple chain as it rounds the gears, in particular the 21 tooth crank gear.

    The Melling chain (again if the picture is correct) has square cut load bearing links w/o a visible fine finish, anywhere. Once again the picture may not reflect the part they ship but why play high stakes poker when you don't have to.


    dhenderson,

    The chain you have found carries the important VIN Y designation so I would expect it to be the correct chain. The only way to be certain however, is to see it with your own eyes.


    For both of you guys I would ask the question why have you decided not to use Ford OEM parts from Ford for your engines? You can order them from Tasca and know the stuff is right. The guy to talk to over there is Steve Powell. Steve will provide you with the lowest price on OEM parts you are likely to be able to find anywhere, especially if you tell him you are from ModFords. If you are shy Steve knows me well, just tell him I sent you. This is Steve's phone number 401.709.7845‬. That number goes directly to Steve.


    Ed

  9. #22
    Junior Member Array saltfever's Avatar
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    These were recommended to me. Are they suitable, will they fit my DOHC "C" heads? Should I consider something else for an 8,500 RPM 3 minute pull? Yeah, quantity 2x.
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  10. #23
    Junior Member Array saltfever's Avatar
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    Quote Originally Posted by eschaider View Post
    . . . You can order them from Tasca and know the stuff is right. The guy to talk to over there is Steve Powell. Steve will provide you with the lowest price on OEM parts you are likely to be able to find anywhere, especially if you tell him you are from ModFords. If you are shy Steve knows me well, just tell him I sent you. This is Steve's phone number 401.709.7845‬. That number goes directly to Steve.
    Thanks for that info, Ed. Up till now I hadn't found a good, repeatable contact for 4.6 stuff. MMR & Accufab seem like sources for custom fab parts but many times OEM Ford parts can't be beat.

  11. #24

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    Quote Originally Posted by saltfever View Post
    These were recommended to me. Are they suitable, will they fit my DOHC "C" heads? Should I consider something else for an 8,500 RPM 3 minute pull? Yeah, quantity 2x.
    They are supposed to be a better cam follower, Kirk. That said there are lots of guys who run their engines at 8500 to 9000 rpm using the original cam follower. If I had all my other parts covered and there was $600 burning a hole in my pocket I might consider spending it on those pieces — but probably not.

    A number of years ago the Ford / Riley team, using Roush-Yates Modmotor powered Daytona Prototype cars appeared for the 50th running of the Rolex 24 Hour race at Daytona. No one paid any attention to the effort. Part of that was probably because R-Y had published some power figures for the engines that were not all that impressive. In fact a baseline Coyote engine today comes off the showroom floor with more horsepower. IMO R-Y was sand bagging but who knows, that was a half dozen years or so ago.. The race was widely expected to be won by a BMW or GM LS powered car.

    For those unfamiliar with Daytona Prototype cars, IMSA, the sanctioning body describes them as the fastest and most technologically advanced sports cars in North America, the Daytona Prototype cars are specifically designed and engineered for the race track. DP cars use a tube chassis built to international specifications, powered by engines from mainstream automotive manufacturers.

    By the time qualifying was over, the R-Y powered cars had nailed down the top qualifying spots — they were fast and it wasn't a flash in the pan sort of performance. By the end of the race, the R-Y cars had finished 1-2-3, sort of reminiscent of LeMans and Shelby decades earlier. I vaguely remember a comment someone made about the R-Y powered cars. While I can't recall the exact words anymore, the essence of the comment went something along the lines of, racing against them was like racing against an F-1 powered car or words to that effect.

    By the time a pushrod engine had peaked in its power curve the R-Y powered cars supposedly still had another 2000/2500 usable rpm left. This went on for hours, 24 hours! I could be wrong but I don't believe those fancy $600 cam followers existed yet! I think it is perhaps less a matter of do you need them and more a matter of a do you have a $600 wad of money burning a hole in your pocket. There is plenty of other important engine stuff to flatten your wallet without resorting to those.

    For those inquiring minds, this was a Roush-Yates ad for the engines back then (check out the R-Y advertised power rating);

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    and this is what the cars they went into looked like;

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    Interesting times, impressive DNA ...


    Ed
    Last edited by eschaider; Yesterday at 06:16 PM. Reason: Fixed broken pic links

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