Anxious and hopefull

Discussion in 'Challenger R/T Engine & Performance Modifications' started by hoseraee, Nov 18, 2020.

  1. hoseraee

    hoseraee Active Member

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    BTW! yes, it's a CH53A circa:1968
     
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  2. 70-426_10-SRT

    70-426_10-SRT B&E body lover

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    Cool,
    Our CH's were 1965 and my HH's were 1967
    I actually found a Link to one of the Tail Numbers (67-14724)
    https://www.dstorm.eu/pages/en/usa/mh-3e.html
    (She was always GREEN when I had her in the Philippines, but all I have are Black & White pics)

    67-14724.jpg
     
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  3. hoseraee

    hoseraee Active Member

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    I was a crew chief HMH463 Marble Mountain RVN 68-69. This picture was taken over the Apple Valley ares of Calif. by a friend in another a/c

    2.jpeg
     
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  4. 70-426_10-SRT

    70-426_10-SRT B&E body lover

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    The ONLY thing that leaks more than a Harley :)
     
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  5. hoseraee

    hoseraee Active Member

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    yea, but, it was a 200 mph+ Hellcat. Super exciting ride
     
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  6. hoseraee

    hoseraee Active Member

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    20210107_155319.jpg OK, finally have some results from UMS Tuning in Phoenix. Torque 407.56 lbft @ 116 mph 5102 rpm 4th gear. 419.93 whp @ 137 mph, 6058 rpm 4th gear. That's a 3.09:1 diff. If you figure 15% hp drop between eng. and rear wheels, that's appx. 480 BHP. Not too bad for this old war horse. The mid-range hp is a little higher than I wanted but when I got out on to I-17 heading toward Flagstaff, OMG, this sucker broke the wheels loose in 3rd gear. Scared the shit out of me, I wasn't expecting that to happen. Don't miss the low end power in town because I don't tear up the road between lights, If I need the power it's just a down shift away. I'm pretty happy with the results. I've had it out on the surface roads 2 days now and have already had people ask me how I made it sound like that. The exhaust is a ground shaker. My 8yo grandson is coming over tomorrow to help me post the dyno page and hopefully some video with sound

    20210107_151653.jpg
     
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  7. hoseraee

    hoseraee Active Member

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    ok! I did this by myself, only took an hour or so to figer out. Next is a video w/sound. I hope.
     

    Attached Files:

  8. Cloverdale

    Cloverdale Full Access Member

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    I like the look of the factory wheels too but even the stock set-up shreds the max tire width you can put on them. I'm curious how much exhaust to ground clearance you have. On 22's I have just 3 1/2 inch clearance at the header collector. My 13 inch wide Nito's help significantly with traction.
     
  9. hoseraee

    hoseraee Active Member

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    Not happy with the throttle response, am looking at installing the Pedal Commander PC31 Bluetooth unit. Does anyone have experience with this unit?
     
  10. 2017 Redline HC

    2017 Redline HC 2021 Durango RT

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    If you get it tuned they can program that out. I had a Sprint Booster on my 2010 RT which is the same idea as the Pedal Commander. I removed it when I put in a Diablo tuner.