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#2445503 - 02/03/18 01:28 AM Re: 72 duster [Re: RustyM]
Cab_Burge Offline
I Win

Registered: 08/23/03
Posts: 30788
Loc: Bend,OR USA
[quote=RustyM]Ok- mini tub set up/ spring move allows me a 15x10 with 3.5 backspace.

Tire size recommendations as well as Rim.
Weld’s are pretty normal of course.
Lot of rim companies out there but /quote]
As far as rim width and tire to use is your rear end a stock width A body 8 3/4?
On moving and stretching the wheel wells I cut up three other junk Dusters rear 1/4 panels to use in having mine widen, the darn multiple angles on the rear 1/4 panel sheet metal makes it harder to make it look factory than the other Mopars I have had done whiney
_________________________
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)

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#2445578 - 02/03/18 09:27 AM Re: 72 duster [Re: RustyM]
humpty Offline
enthusiast

Registered: 10/17/07
Posts: 363
Loc: Minnesota, USA
Wholly cow - that's an impressive build schedule! green

Check out this thread for some pictures of stretching the rear wheel wells:

http://board.moparts.org/ubbthreads/ubbthreads.php/topics/2399290/1.html


Edited by humpty (02/03/18 09:28 AM)
_________________________

72 Duster - 408ci W2, 10.18@131. Shooting for 10.0's in 2018!
https://m.youtube.com/watch?v=Q4P51j38-MI

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#2445684 - 02/03/18 01:03 PM Re: 72 duster [Re: humpty]
RustyM Offline
enthusiast

Registered: 02/24/17
Posts: 215
Loc: Texas
no connection to the pics guys- I think they must time out or something- never can pull up older pics.

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#2445690 - 02/03/18 01:12 PM Re: 72 duster [Re: Cab_Burge]
RustyM Offline
enthusiast

Registered: 02/24/17
Posts: 215
Loc: Texas
Cab: 50 wide, wheel flange to wheel flange .

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#2445706 - 02/03/18 01:45 PM Re: 72 duster [Re: RustyM]
Cab_Burge Offline
I Win

Registered: 08/23/03
Posts: 30788
Loc: Bend,OR USA
I had my B body 8 3/4 narrowed one inch less than the stock A body where which is what your using, I think confused I used Welds that had one inch negative, one inch less offset on the inside than the width of the wheels, 10 inch wide with 4.0 inch inset on the inside, 5 inch on the 12 inch wide rims up Maybe they where 4.5 and 5.5 confused
_________________________
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)

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#2446025 - 02/03/18 11:07 PM Re: 72 duster [Re: RustyM]
humpty Offline
enthusiast

Registered: 10/17/07
Posts: 363
Loc: Minnesota, USA
RustyM - you have a PM.
_________________________

72 Duster - 408ci W2, 10.18@131. Shooting for 10.0's in 2018!
https://m.youtube.com/watch?v=Q4P51j38-MI

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#2446574 - 02/04/18 08:28 PM Re: 72 duster [Re: humpty]
RustyM Offline
enthusiast

Registered: 02/24/17
Posts: 215
Loc: Texas
Thank you!
Studying the pics now.
Nice work!

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#2446582 - 02/04/18 08:40 PM Re: 72 duster [Re: RustyM]
RustyM Offline
enthusiast

Registered: 02/24/17
Posts: 215
Loc: Texas
As we are going to run Andy’s motor plate and only have a bit over 650 hp , was thinking about using an electric water pump since car will really only see strip time.

Suggestions that don’t break the budget but are reliable/ functional?

Best place to get alternators for the motor plate ?
I see the powermastwrs / Denso’s in a range of prices- some too low to be correct and some to high to buy- grin.

Frame shop tomorrow to make sure the old girl is straight before we start welding steel in.

4 cornered car yesterday and weights/ distro looked good empty so- if she’s bent / torqued , it’s not much at all.

Parts start piling in tomorrow .

One just plain dumb mistake: Ordered wrong slicks !!!
Looked at so many/ so much data on my sheet I ordered the wrong pair.
I snapped later that night and rushed to look at my order - yep, wrong section width and rollout.
Too late- already shipped.
Ordered correct ones and got an RA for the wrong ones- sheesh!!

Haste makes waste and over thinking things makes me plumb stooopid!
Grin

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#2446606 - 02/04/18 09:45 PM Re: 72 duster [Re: RustyM]
Just-a-dart Offline
super stock

Registered: 02/20/11
Posts: 1174
Loc: Glendora Ca.
[quote=RustyM]As we are going to run Andy’s motor plate and only have a bit over 650 hp , was thinking about using an electric water pump since car will really only see strip time.

I would use a remote pump like a Meziere, to free up space on the front of the motor.
_________________________

"Just a Bracket car dressed up like a streetcar"

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#2446655 - 02/04/18 11:04 PM Re: 72 duster [Re: RustyM]
Cab_Burge Offline
I Win

Registered: 08/23/03
Posts: 30788
Loc: Bend,OR USA
I used one of Andy AR Engr. alternator mounting kits with a 100 amp Powermaster single wire alternator on my tube chassis Cuda with a stock single groove early 440 pulley up
_________________________
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)

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#2446875 - 02/05/18 12:09 PM Re: 72 duster [Re: RustyM]
Biginchmopar Offline
super stock

Registered: 11/22/10
Posts: 1172
Loc: Carson City, Nevada
"Anyone know exactly where to cut, or, take a pie cut out of the front of the rear quarters at the front of rear wheel wells for slick clearance ?
I think I know where I want to make the cut but would like to confirm.
It’s just really tight on the front side of the tire on the lowest side of the wheelwell.

I know I have seen pics, read an article but danged if I can find either."

I just followed the wheel well body line straight off to make the wedge or pie cuts.


Attachments
IMG_3601.jpg




Edited by Biginchmopar (02/05/18 12:12 PM)

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#2446880 - 02/05/18 12:17 PM Re: 72 duster [Re: Biginchmopar]
RustyM Offline
enthusiast

Registered: 02/24/17
Posts: 215
Loc: Texas
How much tire is that?

Thanks

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#2446885 - 02/05/18 12:21 PM Re: 72 duster [Re: Biginchmopar]
RustyM Offline
enthusiast

Registered: 02/24/17
Posts: 215
Loc: Texas
She’s beautiful !

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#2446887 - 02/05/18 12:26 PM Re: 72 duster [Re: RustyM]
Biginchmopar Offline
super stock

Registered: 11/22/10
Posts: 1172
Loc: Carson City, Nevada
32.5 x 16

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#2446900 - 02/05/18 12:44 PM Re: 72 duster [Re: RustyM]
topside Offline
I Live Here

Registered: 01/19/03
Posts: 12185
Loc: So Near, Yet So Far
Wheel openings: to my eye, the trick is to make them look unaltered and related so to speak to the front openings.
My old SS Duster and the current project both retain the upper flared contour, but are cut starting about 2-3" below the center body line. Bottom of cut is to/flush ft of the tub. The racecar is also cut at the rear, and with minitubs & 3" relocation, 13x31s on 15x12 4BS fits fine, 14x32s would be a bit tight. Narrowed D60.
Project is cut almost the same in front, none at rear, measures like it should just accept a 295/65R15 on a 15x10 (ideally 5.0BS) with stock tubs & 3/4" relocation. Stock 8.75.
Both have upper lip rolled up, excess flange cut - take a good look at that area - racecar being thinner than project because I didn't want to cut the wheelhouse itself. Its flange is about 1/2" because of the stock wheelhouse contour. Racecar eliminated that and filler welded in.
Contours at front/inside of tub are another interference point at around 31/32" tire.
Pie-slice allows retaining the stock flange, a tight cut affect clearance only about 3/16".

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#2449706 - 02/10/18 04:43 PM Re: 72 duster [Re: RustyM]
RustyM Offline
enthusiast

Registered: 02/24/17
Posts: 215
Loc: Texas
Got the ole girl back from the frame shop.
She looked/measured pretty good here, just a little different door gab from right to left side.
Sure enough- get it on the frame table and- bam! There it is- twisted across from section from left to right, high on left, low on right and- just a tiny tad low on left rear corner.

All fixed up now- likely better than factory but- who knows.
main thing for us- we know she is plumb/square in all planes.
When i got there to pick her he still had instruments on her so i got to see where she was.
Door gaps good now side to side, front to rear.
Needless to say one can see clean old paint at fender bolt locations from re-setting fenders, grin, that old yellow wasn't so bad when new!- grin

back to building the car now.

Highly recommend having a relationship with a good frame shop- as of this date, never had one truly straight when it got on the table.

just sayin

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#2449717 - 02/10/18 04:55 PM Re: 72 duster [Re: RustyM]
RustyM Offline
enthusiast

Registered: 02/24/17
Posts: 215
Loc: Texas
I would like to know a few duster set-ups and what they run at what weight: 1/8, 1/4 , mph in both and 60 ft times.

This would help me greatly in building/setting up the car.

I have been using Wallace calculators for some things but not sure how accurate the data is one gets from these type calculators because we don't have air temps/dew points /drag coefficiants etc.

Open to advice as usual and any data folks are willing to share is greatly appreciated.

thanks,

rusty

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#2449838 - 02/10/18 08:03 PM Re: 72 duster [Re: RustyM]
Cab_Burge Offline
I Win

Registered: 08/23/03
Posts: 30788
Loc: Bend,OR USA
My old street car, 1971 Duster, weighed 3450 Lbs. with me in it ready to race with full 3.0 inch exhaust to the rear bumper and air cleaner on. Ladder bars with double adjustable coil overs and a diagonal link,
M/T ET Street Radials 315x60x15 mounted on 10 inch wide Weld Pro rims. Stock gas tank with a Magnafuel 275 pump with a # 10 AN feed to the pump, #8 AN bypass and #8 AN (1/2 O.D. soft aluminum line to the regulator mounted up front in front of the carb.)
That motor was a 400 block bored to 4.375 and stroke was 4.300, Comp Cams custom ground solid roller 260@.0500 intake side, 266 @.050 exhaust side with Harland Sharp 1.6 ratio rockers that netted .700 + a tiny bit at the retainers on a set of Indy SR Max wedge size intake port heads and a Indy 400- intake and a Holley 1050 CFM Dominator.
It ran a bunch of 10.00 through the exhaust on 91 octane non ethanol Oregon pump swill, the motor made 727 HP the last time it was a decent engine dyno in Klamath Falls ,Oregon at 4300 Ft. in the spring up
_________________________
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)

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#2449932 - 02/10/18 11:57 PM Re: 72 duster [Re: RustyM]
humpty Offline
enthusiast

Registered: 10/17/07
Posts: 363
Loc: Minnesota, USA
I've had two 72 Dusters - the first was a big tire SS spring, 451ci BB that made 677hp, 590tq, built 727 with Turbo Action Transbrake, 8" Dynamic 5000 converter, 4.10's, spool, slicks, 8 point bar, stock front suspension, 3300lbs with me at the line, 6.65@103 1/8mi, 10.40@128 1/4mi, best 60' was 1.45.

The second is in my sig - 408ci, iron W2's that made 605hp, 540tq, built low gear 904 with A&A Transbrake, 8" PTC 5500 converter, 6 point bar, front coil overs, 4.10's, spool, 275 drag radials, stock location cal tracs with split mono leafs, da AFCO's on all corners, 3160lbs with me at the line, 6.47@107 1/8mi, 10.18@131 1/4mi, best 60' is 1.41.

Cheers
_________________________

72 Duster - 408ci W2, 10.18@131. Shooting for 10.0's in 2018!
https://m.youtube.com/watch?v=Q4P51j38-MI

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#2450052 - 02/11/18 11:07 AM Re: 72 duster [Re: humpty]
Edge Offline
mopar

Registered: 02/23/06
Posts: 657
Loc: Alberta Canada
My back half duster was around 3000 lbs 499 CID with Indy SR head ran 9.80 in 5000 foot air running 100 LL. This is with all pretty standard stuff 727 with griner transbrake and a Lupo converter.
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76 Duster work in progress

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