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M/T 28" W`S................. #2062793
04/27/16 04:57 PM
04/27/16 04:57 PM
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Thumperdart Offline OP
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Who`s running these and at what speed/et. I have 29.5 10x5`s on a 10" rim and can`t stand the "jacked up" stance+ they`re 94 in circ iirc and the 28w`s are 88..............thankxxx................This is on a 72 Dart and would love pics if you have em also........ thumbs

Last edited by Thumperdart; 04/27/16 04:59 PM.

72 Dart 470 n/a BB stroker street car `THUMPER`...Check me out on FB Dominic Thumper for videos and lots of carb pics......760-900-3895.....
Re: M/T 28" W`S................. [Re: Thumperdart] #2062815
04/27/16 05:17 PM
04/27/16 05:17 PM
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Las Vegas
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We ran STD 28x10.5's on the Valiant. It went 9.0's at 150

Last edited by Al_Alguire; 04/27/16 05:23 PM.

"I am not ashamed to confess I am ignorant of what I do not know."

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Re: M/T 28" W`S................. [Re: Al_Alguire] #2062827
04/27/16 05:34 PM
04/27/16 05:34 PM
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Thumperdart Offline OP
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Cool AL, like a dumbazz I trimmed the rear fender wells to clear the 29`s and don`t want it to look too goofy............


72 Dart 470 n/a BB stroker street car `THUMPER`...Check me out on FB Dominic Thumper for videos and lots of carb pics......760-900-3895.....
Re: M/T 28" W`S................. [Re: Thumperdart] #2062976
04/27/16 09:20 PM
04/27/16 09:20 PM
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Janesville, WI
SpareParts Offline
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Originally Posted By Thumperdart
don`t want it to look too goofy............


Tint the windows... DARK! laugh lol had to

Re: M/T 28" W`S................. [Re: SpareParts] #2062980
04/27/16 09:29 PM
04/27/16 09:29 PM
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Thumperdart Offline OP
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Originally Posted By SpareParts
Originally Posted By Thumperdart
don`t want it to look too goofy............


Tint the windows... DARK! laugh lol had to


Oh, we have a comedian on board........... laugh2


72 Dart 470 n/a BB stroker street car `THUMPER`...Check me out on FB Dominic Thumper for videos and lots of carb pics......760-900-3895.....
Re: M/T 28" W`S................. [Re: Thumperdart] #2063009
04/27/16 10:08 PM
04/27/16 10:08 PM
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Hilltown Pa
1967dartgt Offline
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28x10.5 non w


Brett Miller W9 cnc'd heads
STR Chassis fabraction
Re: M/T 28" W`S................. [Re: 1967dartgt] #2063012
04/27/16 10:10 PM
04/27/16 10:10 PM
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Thumperdart Offline OP
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Originally Posted By 1967dartgt
28x10.5 non w


NICE..........I just might try these and they were on a friends low 8-second Mustang who now runs the 8.5 class.........


72 Dart 470 n/a BB stroker street car `THUMPER`...Check me out on FB Dominic Thumper for videos and lots of carb pics......760-900-3895.....
Re: M/T 28" W`S................. [Re: Thumperdart] #2063019
04/27/16 10:17 PM
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9.14@145

Last edited by 1967dartgt; 04/27/16 10:19 PM.

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STR Chassis fabraction
Re: M/T 28" W`S................. [Re: SpareParts] #2063021
04/27/16 10:18 PM
04/27/16 10:18 PM
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Akron, Ohio
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Originally Posted By SpareParts
Originally Posted By Thumperdart
don`t want it to look too goofy............


Tint the windows... DARK! laugh lol had to


haha


Dom will you have to change rear gears when you switch to a shorter tire or do you have room for more RPM?


1970 Challenger, all aluminum 528 Hemi, HDK suspension, Tremec 5 speed manual
Re: M/T 28" W`S................. [Re: ProSport] #2063025
04/27/16 10:23 PM
04/27/16 10:23 PM
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Originally Posted By ProSport
Originally Posted By SpareParts
Originally Posted By Thumperdart
don`t want it to look too goofy............


Tint the windows... DARK! laugh lol had to


haha


Dom will you have to change rear gears when you switch to a shorter tire or do you have room for more RPM?


My 9.79 was w/a Hoosier QTP w/91 cir. and 7200 at the stripe so w/an 88 cir. maybe the math wizes can figure that out but mostly just hate the 29.5 stance and obviously they work on bad ass cars..........


72 Dart 470 n/a BB stroker street car `THUMPER`...Check me out on FB Dominic Thumper for videos and lots of carb pics......760-900-3895.....
Re: M/T 28" W`S................. [Re: Thumperdart] #2063030
04/27/16 10:30 PM
04/27/16 10:30 PM
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Hilltown Pa
1967dartgt Offline
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What's your gear ratio


Brett Miller W9 cnc'd heads
STR Chassis fabraction
Re: M/T 28" W`S................. [Re: Thumperdart] #2063058
04/27/16 11:03 PM
04/27/16 11:03 PM
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Quote:
My 9.79 was w/a Hoosier QTP w/91 cir. and 7200 at the stripe so w/an 88 cir. maybe the math wizes can figure that out but mostly just hate the 29.5 stance and obviously they work on bad ass cars..........


Wow, yea you'll need to switch to a different gear for sure I would think. Over 7200 RPM is quite high although some guys run more with a big block, it would make me nervous at the stripe though.


1970 Challenger, all aluminum 528 Hemi, HDK suspension, Tremec 5 speed manual
Re: M/T 28" W`S................. [Re: Thumperdart] #2063082
04/27/16 11:37 PM
04/27/16 11:37 PM
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Charlotte, North Carolina
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Roughly 3 1/2% drop in diameter. So 7200 x 103.5 = 7452. Plus, if you plan on going a little faster, 7600-7800? Can you add a spacer block between the spring and perch to lower the back end?


[image][/image]
Re: M/T 28" W`S................. [Re: Thumperdart] #2063095
04/27/16 11:51 PM
04/27/16 11:51 PM
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Staten Island N.Y.
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The 275 pro tire circ is 89 and the Phoenix 28.5 x 10.5 is at 90 and are about $186 each at Jegs.


PRH446
10.084 @ 135.21 mph N/A through chambered mufflers,3300lbs. Stock stroke wedge
Re: M/T 28" W`S................. [Re: 1967dartgt] #2063097
04/27/16 11:52 PM
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Thumperdart Offline OP
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Originally Posted By 1967dartgt
What's your gear ratio


4.10`s..........Already on 2" blocks.......

Last edited by Thumperdart; 04/27/16 11:53 PM.

72 Dart 470 n/a BB stroker street car `THUMPER`...Check me out on FB Dominic Thumper for videos and lots of carb pics......760-900-3895.....
Re: M/T 28" W`S................. [Re: Thumperdart] #2063111
04/28/16 12:15 AM
04/28/16 12:15 AM
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No E.T. to report... 28 x 13.5 Hoosier QTPs. Moved the rearend back approx. 2" when installing the ladder bars rather than cut on the 1/4s for clearance.(plus i like the stock wheelwell look). Only downside to doing that is slightly less weight on the rears,

2015-10-03 11.59.38 - Copy.jpg2016-04-07 19.12.14.jpg
Re: M/T 28" W`S................. [Re: Thumperdart] #2063120
04/28/16 12:25 AM
04/28/16 12:25 AM
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Hilltown Pa
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I would run it with the 4.10s.


Brett Miller W9 cnc'd heads
STR Chassis fabraction
Re: M/T 28" W`S................. [Re: 1967dartgt] #2063122
04/28/16 12:27 AM
04/28/16 12:27 AM
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Tucson, Arizona
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Originally Posted By 1967dartgt
28x10.5 non w


Brad, You excel at Photoshop!


[img] [/img]
Re: M/T 28" W`S................. [Re: 1967dartgt] #2063123
04/28/16 12:29 AM
04/28/16 12:29 AM
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Tucson, Arizona
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Originally Posted By 1967dartgt


9.14@145


Dom, It's a small block. Thumbs Up?


[img] [/img]
Re: M/T 28" W`S................. [Re: Thumperdart] #2063124
04/28/16 12:29 AM
04/28/16 12:29 AM
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Canton, Ohio
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Current gear/29"tire.
135.5 mph x 4.10 gear x 336/29" tire = 6436.+ 12% vert slip, =7209rpm

Same gear/28"tire.
135.5 mph x 4.10 gear x 336/28" tire = 6666.+ 12% vert slip,=7466rpm

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