Progress update
#3258318
09/17/24 08:32 AM
09/17/24 08:32 AM
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Joined: Dec 2021
Posts: 1,437 Loudoun County, VA
Brad_Haak
OP
pro stock
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OP
pro stock
Joined: Dec 2021
Posts: 1,437
Loudoun County, VA
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Concern for leaf spring sag was case of torsion bar adjustments being way different from side to side. Still not where it should be, but more on that later.
Big PITA getting the hood back on cuz: 1. for fiberglass, it's freakin' heavy 2. since all the front sheet metal had to come off to repair the frame and it went back on w/ some adjustments, stuff didn't line up the same as when pulled apart 3. the adjustment process getting the hinges positioned properly was a bit of an exercise in frustration
I was getting ready to say "Eff it!" and go back to a lift-off hood until we finally got things close enough on Sunday afternoon to keep it. But I could save some weight if I really had to...
2021 Challenger 6.4L Scat Pack 1320 100% stock: 1.680, 11.894 at 113.75 (DA 175 ft) weight reduction, wheels, tires, Hellcat air box: 1.661, 11.686 at 115.97 (DA 710 ft)
1973 Challenger 452 ci street/strip [2008] pump gas, DOT radials: 1.454, 10.523 at 126.44 (DA 514 ft)
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Re: Progress update
[Re: Brad_Haak]
#3258321
09/17/24 08:39 AM
09/17/24 08:39 AM
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Joined: Dec 2021
Posts: 1,437 Loudoun County, VA
Brad_Haak
OP
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OP
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Joined: Dec 2021
Posts: 1,437
Loudoun County, VA
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Front end extension travel from static ride height is too limited: needs to be 5+" and right now it's a tad over 4". Probably gonna be a combination of lowering torsion bar adjustments and trimming the UCA bumpers to free up some additional travel. I ran some really short UCA bumpers previously, but they were virtually flat and made a noticeable "Thunk!" sound when the front suspension topped out coming off the line. I was hoping to use a bumper with a bit more "give" in the initial contact this time, but they're too tall as is. The overall car height is about where it was before, but I switched to shorter & skinnier front tires. Edit: added pic of how car sat back in 2009 w/ the taller tires for reference.
Last edited by Brad_Haak; 09/17/24 08:42 AM.
2021 Challenger 6.4L Scat Pack 1320 100% stock: 1.680, 11.894 at 113.75 (DA 175 ft) weight reduction, wheels, tires, Hellcat air box: 1.661, 11.686 at 115.97 (DA 710 ft)
1973 Challenger 452 ci street/strip [2008] pump gas, DOT radials: 1.454, 10.523 at 126.44 (DA 514 ft)
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Re: Progress update
[Re: Brad_Haak]
#3258322
09/17/24 08:54 AM
09/17/24 08:54 AM
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Joined: Dec 2021
Posts: 1,437 Loudoun County, VA
Brad_Haak
OP
pro stock
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OP
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Joined: Dec 2021
Posts: 1,437
Loudoun County, VA
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Can't hide the rust, scratches or dents now that I washed it.
Vinyl top got some TLC while I was at it.
The rear license plate mounts differently that before cuz we removed the '72-74 bracket and switched to the '70-71 approach. Unfortunately, now the license plate and the master cut-off switch are trying to occupy the same space, so I decided to trim off some "non-essential" section of the plate.
Need to contact a shop about 20 miles from home about getting the front end aligned.
PS - Car looks way better in pics than in person... it's definitely a 20-footer, but it's my 20-footer
2021 Challenger 6.4L Scat Pack 1320 100% stock: 1.680, 11.894 at 113.75 (DA 175 ft) weight reduction, wheels, tires, Hellcat air box: 1.661, 11.686 at 115.97 (DA 710 ft)
1973 Challenger 452 ci street/strip [2008] pump gas, DOT radials: 1.454, 10.523 at 126.44 (DA 514 ft)
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Re: Progress update
[Re: Brad_Haak]
#3258324
09/17/24 09:00 AM
09/17/24 09:00 AM
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Joined: Dec 2021
Posts: 1,437 Loudoun County, VA
Brad_Haak
OP
pro stock
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OP
pro stock
Joined: Dec 2021
Posts: 1,437
Loudoun County, VA
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Can't find the prop rod I made years ago, so I grabbed a kid's plastic bat I found stuffed in the basement and re-purposed it
2021 Challenger 6.4L Scat Pack 1320 100% stock: 1.680, 11.894 at 113.75 (DA 175 ft) weight reduction, wheels, tires, Hellcat air box: 1.661, 11.686 at 115.97 (DA 710 ft)
1973 Challenger 452 ci street/strip [2008] pump gas, DOT radials: 1.454, 10.523 at 126.44 (DA 514 ft)
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Re: Progress update
[Re: Brad_Haak]
#3258325
09/17/24 09:03 AM
09/17/24 09:03 AM
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Joined: Jan 2003
Posts: 13,599 Marion, South Carolina [><]
an8sec70cuda
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 13,599
Marion, South Carolina [><]
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Looks good Brad! My car is probably a 30 footer, lol. Looks better in pics than in person, but if it was really nice I probably wouldn't have as much fun w/ it. The taller front tires help a lot w/ front travel. I use 28" tall fronts so I could lower the front end down for more travel while maintaining the same ride height it had w/ shorter tires. FWIW...I ran for years w/ no front UCA bump stops at all. Trying to get all the travel I could.
CHIP '70 hemicuda, 575" Hemi, 727, Dana 60 '69 road runner, 440-6, 4 speed, Dana 60 '71 Demon 340, no drivetrain, on blocks behind the barn '73 Chrysler New Yorker, 440, 727, 8.75 '90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt '06 GMC 2500HD LBZ Duramax
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Re: Progress update
[Re: racerx]
#3258356
09/17/24 11:14 AM
09/17/24 11:14 AM
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Joined: Dec 2021
Posts: 1,437 Loudoun County, VA
Brad_Haak
OP
pro stock
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OP
pro stock
Joined: Dec 2021
Posts: 1,437
Loudoun County, VA
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Just waxed it!
2021 Challenger 6.4L Scat Pack 1320 100% stock: 1.680, 11.894 at 113.75 (DA 175 ft) weight reduction, wheels, tires, Hellcat air box: 1.661, 11.686 at 115.97 (DA 710 ft)
1973 Challenger 452 ci street/strip [2008] pump gas, DOT radials: 1.454, 10.523 at 126.44 (DA 514 ft)
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Re: Progress update
[Re: racerx]
#3258368
09/17/24 11:54 AM
09/17/24 11:54 AM
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Joined: Dec 2013
Posts: 4,871 Wichita
GY3
master
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master
Joined: Dec 2013
Posts: 4,871
Wichita
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t's definitely a 20-footer, but it's my 20-footer Every time i hear this it makes me think of a neighbor that has a high dollar fox body ,that tells me that i have a 20'er Fox body. LMAO! I had a '93 Cobra. Really nothing special. One just like the millions of others out there.
'63 Dodge 330
11.19 @ 121 mph Pump gas, n/a, through the mufflers on street tires with 3.54's. 3,600 lbs.
9.92 @ 135mph with a 350 shot of nitrous and 93 octane pump. 1.43 60 ft. 3,750 lbs.
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Re: Progress update
[Re: Brad_Haak]
#3258382
09/17/24 12:41 PM
09/17/24 12:41 PM
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Joined: Aug 2008
Posts: 4,183 Mo.
racerx
master
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master
Joined: Aug 2008
Posts: 4,183
Mo.
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Re: Progress update
[Re: racerx]
#3258394
09/17/24 01:14 PM
09/17/24 01:14 PM
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Joined: Jan 2003
Posts: 8,114 Tulsa OK
Bad340fish
master
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master
Joined: Jan 2003
Posts: 8,114
Tulsa OK
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I am member of the 20ft club as well lol. Paint doesn't make anything more fun.
68 Barracuda Formula S 340
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Re: Progress update
[Re: JERICOGTX]
#3258416
09/17/24 03:16 PM
09/17/24 03:16 PM
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Joined: Jan 2003
Posts: 18,065 S.E. Michigan
ZIPPY
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 18,065
S.E. Michigan
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Looks good from over here. At least it's back together in mostly one piece!
Rich H.
Esse Quam Videri
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Re: Progress update
[Re: dvw]
#3258521
09/18/24 07:14 AM
09/18/24 07:14 AM
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Joined: Dec 2021
Posts: 1,437 Loudoun County, VA
Brad_Haak
OP
pro stock
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OP
pro stock
Joined: Dec 2021
Posts: 1,437
Loudoun County, VA
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Best way to increase travel is 1" longer upper ball joints. Afco, Speedway and others have them. removiving the upper bump stops gives you maybe 1/2" at most. Doug I've been able to get sufficient travel with ride height and control arm bumper height. Swapped to QA1 tubular UCAs as part of the rebuild, but the upper ball joints are still stock dimension. The other thing I always keep in mind is it's possible to free up more travel than certain dampers can support. My QA1 R-series are shorter than my old Koni SPA-1 and could become the defacto travel limiters if I don't verify they're not topped out before the bumpers come into play.
2021 Challenger 6.4L Scat Pack 1320 100% stock: 1.680, 11.894 at 113.75 (DA 175 ft) weight reduction, wheels, tires, Hellcat air box: 1.661, 11.686 at 115.97 (DA 710 ft)
1973 Challenger 452 ci street/strip [2008] pump gas, DOT radials: 1.454, 10.523 at 126.44 (DA 514 ft)
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Re: Progress update
[Re: Brad_Haak]
#3258528
09/18/24 07:44 AM
09/18/24 07:44 AM
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Joined: Jan 2003
Posts: 13,599 Marion, South Carolina [><]
an8sec70cuda
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 13,599
Marion, South Carolina [><]
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CHIP '70 hemicuda, 575" Hemi, 727, Dana 60 '69 road runner, 440-6, 4 speed, Dana 60 '71 Demon 340, no drivetrain, on blocks behind the barn '73 Chrysler New Yorker, 440, 727, 8.75 '90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt '06 GMC 2500HD LBZ Duramax
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Re: Progress update
[Re: an8sec70cuda]
#3258538
09/18/24 08:42 AM
09/18/24 08:42 AM
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Joined: Dec 2021
Posts: 1,437 Loudoun County, VA
Brad_Haak
OP
pro stock
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OP
pro stock
Joined: Dec 2021
Posts: 1,437
Loudoun County, VA
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I got a set of those on a shelf getting dusty; never been outta the bag.
Car gets towed this afternoon to the shop that's gonna do the front-end alignment. After that's done I should be able to start driving it around while working on other things it still needs done. Sitting for 15 years didn't do it any favors...
2021 Challenger 6.4L Scat Pack 1320 100% stock: 1.680, 11.894 at 113.75 (DA 175 ft) weight reduction, wheels, tires, Hellcat air box: 1.661, 11.686 at 115.97 (DA 710 ft)
1973 Challenger 452 ci street/strip [2008] pump gas, DOT radials: 1.454, 10.523 at 126.44 (DA 514 ft)
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