Modern Muscle Performance Group

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  1. #46
    Join Date
    Dec 2012
    Location
    Ajax Ontario Canada
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    55
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    I had it running for 15-20 min today. I'm going to concentrate on getting it ready to drive now. It runs good, no leaks, everything works. I'm fighting the iac a bit, must need its parameters changed a bit. I'm using a ford 2 wire pwm, it was the easiest way with the stock drive by wire throttle body.

    Now that the tune is happier at idle the engine is really quiet. I'm going to work on putting the truck back together and going over the brakes. Should be driving sometime in june.
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  2. #47
    Join Date
    Dec 2012
    Location
    Ajax Ontario Canada
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    55
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    I'm really close to finished. Having an issue with the brakes, front are sticking. They are holding pressure when you get off the brakes. It has new calipers and flex lines, if I crack the bleeder or even the line at the flex line they release. I'm waiting for a master cylinder. I wanted to eliminate the factory proportioning valve and replace with an adjustable anyway so might run new lines.

    I picked up a 46rh transmission for the future. I decided it was the best route so I do not have to modify headers and run a big computer to go 8 speed. They make a small programmable computer to run overdrive and lockup.
    I can rebuild 727's so its just learning the overdrive unit. Just have to decide on rear end. Its looking like the rest of the drivetrain will be next year.
    Likes Lowlife44 liked this post

  3. #48
    Join Date
    Dec 2014
    Posts
    668
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    For a rear diff I’m sure you can find 9.25’s at the recking yards fairly cheap. If you grab something from 03/04 they will come with rear disc brakes that are fairly good as well. Nice work on this build. I’ve considered doing something similar in my 02 Dak. Times have changed and I’ll be going full race with a Gen3 Hemi in my Race Dak.


    Sent from my iPhone using Tapatalk
    13 Durango R/T
    13 M6 Challenger R/T
    02 M5 Dakota QC Sport
    91 TKO 600 Dakota CC
    63 Dart 3 on da Tree

  4. #49
    Join Date
    Mar 2016
    Location
    DE
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    2,962
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    X2 on 03+ rears. I put one in my 01 bc it has disk brake and 3.91 ratio. I also out a auto locker in it. Fun combo. It’s for sale now tho bc I have a dana60 going in.


    Sent from my iPhone using Scat Pack Forums
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  5. #50
    Join Date
    Dec 2012
    Location
    Ajax Ontario Canada
    Posts
    55
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    I was not impressed with the 9 1/4 in my 03 dak. Posi was too grabby around corners then it broke it. Carrier is not rebuildable.
    I have 5 bolt so it's either 8.8 or I do have a B body dana 60 with 4.10 track lock and strange 35 spline axles. Its 2 inches narrow which is fine.

    I'm close to having the air conditioning done. Just need some different angle fittings. I welded Male fittings to a factory condenser.
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  6. #51
    Join Date
    Dec 2012
    Location
    Ajax Ontario Canada
    Posts
    55
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    I finally drove it today. It runs good. Was a short 10 min drive. Going to have to go out in the country and get some tuning through the rpm range and throttle positions. I might need to get it on a chassis dyno for that.

    So far its close to what I was after, quiet, smooth and lots of power. Brakes will take a bit to get used to, I have not had a manual brake car in 10 years.
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  7. #52
    Join Date
    Dec 2012
    Location
    Ajax Ontario Canada
    Posts
    55
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    I spent a lot of time trying to tune in gear idle. The torque converter drags the engine down alot.
    The iac was going nuts trying to fix it. I had to set idle and iac position with it in gear and let it idle higher in park, so
    No control in park except idle screw. I would have iac position at 5% then in gear would be 85% then would surge because it could not raise
    Rpm, it also uses timing so that would jump +,- 10 degrees.

    I thought the V6 converter would be loose behind this engine.

  8. #53
    Join Date
    Dec 2012
    Location
    Ajax Ontario Canada
    Posts
    55
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    I ended up converting it over to power brakes. I used a setup for a 1990 3/4 ton dodge. It has a 9 1/4" vacuum booster. It took a bit of modifying to get it to bolt in and work. The brakes are awesome now and maybe a little touchy as I had to increase pedal ratio to straighten out the angle of the pedal push rod.

    I'm having a hard time trying to get it to tune wide open throttle, it has 3.23 open rear. First gear will do over 60mph but has no traction anywhere once near full throttle. I'm trying to not load it up to much in higher gears cause I figure a full throttle down shift will hurt the transmission.

    It runs and drives really good. I do not have a tach so I always think its stalled when coming to a stop as I cannot hear it or feel it running.

  9. #54
    Join Date
    Dec 2012
    Location
    Ajax Ontario Canada
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    55
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    Going to see if these pics will load. I can post all the pics again now photobucket is not free.



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  10. #55
    Join Date
    Mar 2016
    Location
    DE
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    2,962
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    Awesome!

  11. #56
    Join Date
    Dec 2012
    Location
    Ajax Ontario Canada
    Posts
    55
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    I drove it to work yesterday. It runs really good. The transmission has hurt 3rd gear, it slips on the 2-3 shift at almost no throttle once its hot.

    Its time to find a rear axle and get the transmission and rear rebuilt for next spring. Thinking about running a 3500 stall and 4.10 gears. With the lockup converter it should be able to cruise at 2000 rpm on the highway.

    Power brakes


  12. #57
    Join Date
    Dec 2012
    Location
    Ajax Ontario Canada
    Posts
    55
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    I adjusted the band and it has helped the 2-3 shift. I'm going to drill and tap a new lower
    Hole in the pivot for throttle pressure to increase pressure at no throttle. I'm thinking since it takes very little throttle to get up to speed line pressure is low.

  13. #58
    Join Date
    Dec 2012
    Location
    Ajax Ontario Canada
    Posts
    55
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    I finished the A/C system. Will have to get it leak checked then charge it. A little wiring to do. Have to find a good spot for the cycling switch.

    I'm going to finish the cold air intake, its going to snake under the A/C lines and hopefully get fresh air. Time to get out the sawzall. Its really hot up above the valve cover.

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  14. #59
    Join Date
    Dec 2012
    Location
    Ajax Ontario Canada
    Posts
    55
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    Got the A/C charged. Just need to do the wiring.

    I see Holley just released gen3 hemi swap mounts and headers for the first gen Dakota.

  15. #60
    Join Date
    Oct 2006
    Location
    Alvin, Texas
    Posts
    7,227
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    I have always wanted to do this...bravo to you for all this hard work !!!
    2010 Detonator Yellow Challenger
    "DETONATOR"...Gone
    2019 Challenger TA 392 F8 GREEN
    [B] "EVERGRN" [B]
    2006 Charger R/T,[B] FRI 392 [B]
    "Daddys Toy" Hemi Rgeisrty#556
    Thanks pursuitlx thanked for this post

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