Help setting up Hemi Duster
#2105094
07/06/16 06:32 PM
07/06/16 06:32 PM
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Joined: Nov 2003
Posts: 1,033 Madison, Wisconsin
chrisnben
OP
super stock
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OP
super stock
Joined: Nov 2003
Posts: 1,033
Madison, Wisconsin
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Hi guys, well since last posting- sold the '68 Valiant for a '72 Duster. One thing leading to another- had to find a home for my 528 Hemi. SO, I'm trying to make this beast handle as best I can with the following limitations. I've taken some weight off the nose with fiberglass hood & bumper w/ aluminum brackets. I'm needing opinions on front tire size & steering ratio. I don't want this STREET car to steer like a lumber wagon. Looking for 17 or 18" rims. I think the rear will end up 285/40/18 on a 18x9; 5.6 BS. Here are the collected parts so far: 528 stroked gen2 Hemi (600+ HP)- has aluminum heads, w.p. and 4 bbl intake- so not all that different than a 440. TTI 2.125" headers. O/D Automatic (0.70 ratio) manual box- keep 24:1 or do FFI 16:1 or 20:1? Bilstein shocks (4) FFI- 0.940 T Bars Gerst tubular UCA's & strut bars US Car tool complete chassis kit- frame ties, boxes, rad support, etc. Offset rear spring 1/2" inboard kit Viper caliper/11.75 Dr.Diff disc set-up 10" drum spindle; SSBC 10" rear discs on 8-3/4 A-body housing, Moser BBP axles, 3.23 gears Tuff steering wheel 14"
'70 Cuda "Badfish 2"- in the works
Home of MoPar University- We school 'em one at a time!!
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Re: Help setting up Hemi Duster
[Re: chrisnben]
#2105333
07/06/16 11:45 PM
07/06/16 11:45 PM
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Joined: Dec 2003
Posts: 22,696 Bitopia
jcc
If you can't dazzle em with diamonds..
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If you can't dazzle em with diamonds..
Joined: Dec 2003
Posts: 22,696
Bitopia
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Lots of limitations here. Anyway: 1. Didn't mention it but your battery has been moved rearward? 2. Get the biggest stickiest tires you can afford, but keeping it square will reduce you chasing your tail somewhat 3. Upgrade brakes later/last 4. Step up to a real TB 1.06"+, don't waste your time with your current ones, a rear spring upgrade is dependent on all your other choices 5. Add any beefy size Front swaybar, you'll need to change it later, or add a rear bar to tune your set-up as it gets dialed in, remember, EVERYTHING effects EVERYTHING else. 6. Any track time is enhanced if driver has a proper seat/restraints 7. I can't imagine if a 16:1 box is even doable with your combo, others will likely comment on a 20:1, but a 24:1 seems a shame.
Reality check, that half the population is smarter then 50% of the people and it's a constantly contested fact.
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Re: Help setting up Hemi Duster
[Re: jcc]
#2106743
07/09/16 11:15 AM
07/09/16 11:15 AM
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Joined: Nov 2003
Posts: 1,033 Madison, Wisconsin
chrisnben
OP
super stock
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OP
super stock
Joined: Nov 2003
Posts: 1,033
Madison, Wisconsin
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Thanks for the list JCC. So far we've decided on a 20:1 manual steering box rebuild, 1.00 T-bars.
I might try small "XS" batteries and shave the tray- keeping it simplified. Has anyone tried these 'lawn mower sized' units?
I'm looking into Lexan front & rear windows possibly later (from Proglass) These are moulded to factory glass contours and are a bargain for the weight savings ($300 each). Still retains the rubber gaskets & trim- unless you tap the "glass" you would swear it's factory.
Being a street car, I'm looking at a Vintage Air unit. Mainly for the defrost and heat. This is due to having to remove the stock blower motor because of the Hemi.
I'll post progress pics here shortly. We'll be diving in to the chassis welding here shortly. Stay tuned.....
'70 Cuda "Badfish 2"- in the works
Home of MoPar University- We school 'em one at a time!!
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Re: Help setting up Hemi Duster
[Re: chrisnben]
#2107265
07/10/16 01:04 PM
07/10/16 01:04 PM
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Joined: Feb 2011
Posts: 4,302 Nebraska
72Swinger
master
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master
Joined: Feb 2011
Posts: 4,302
Nebraska
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Ditch the manual box for a Borgeson. Glass hood and front bumper. 1.18 tbars and flattened 3400lb left side SS Springs. Front wheels can be 18x9 with 275/35/18 and the rear can be same or wider like 18x10 with 295/35/18.
Last edited by 72Swinger; 07/10/16 01:08 PM.
Mopar to the bone!!!
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Re: Help setting up Hemi Duster
[Re: BigBlockMopar]
#2107383
07/10/16 04:49 PM
07/10/16 04:49 PM
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Joined: Dec 2003
Posts: 22,696 Bitopia
jcc
If you can't dazzle em with diamonds..
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If you can't dazzle em with diamonds..
Joined: Dec 2003
Posts: 22,696
Bitopia
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Being a street car, I would still suggest looking into going power steering. The improved steering ratio will put a lot of fun and ease back into the car it you want to do some occassional quick cornering. I didn't address this in my first reply, and unless you have to have manual, I agree, PS makes a lot more sense especiall with a big motor, and there is as mentioned decent PS options. I just recently converted a slant 6 car to manual, hope I don't regret it.
Reality check, that half the population is smarter then 50% of the people and it's a constantly contested fact.
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Re: Help setting up Hemi Duster
[Re: jcc]
#2108163
07/11/16 09:10 PM
07/11/16 09:10 PM
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Joined: Nov 2003
Posts: 1,033 Madison, Wisconsin
chrisnben
OP
super stock
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OP
super stock
Joined: Nov 2003
Posts: 1,033
Madison, Wisconsin
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Being a street car, I would still suggest looking into going power steering. The improved steering ratio will put a lot of fun and ease back into the car it you want to do some occassional quick cornering. I didn't address this in my first reply, and unless you have to have manual, I agree, PS makes a lot more sense especiall with a big motor, and there is as mentioned decent PS options. I just recently converted a slant 6 car to manual, hope I don't regret it. I don't think even the Borgeson PS box will fit with the TTI hemi headers- which are 2-1/8". I wonder if the repro manifolds would allow more room? This engine is huge-wide; well the heads anyways. I'll do some digging on it because I agree that PS would be alot better and then I'd be all in for 275's up front!! I'm aware of Hemi Denny and the thread on loosing weight. I also have a '65 belvedere strip car (as does the guy in the thread- fullmetaljacket) we share ideas about shedding ##. I'll look into the Earth X battery. I think that might be cool- plus not having to add 15# of 2ga. cable to the rear. Thanks for the tips guys!
'70 Cuda "Badfish 2"- in the works
Home of MoPar University- We school 'em one at a time!!
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Re: Help setting up Hemi Duster
[Re: chrisnben]
#2110440
07/15/16 11:37 AM
07/15/16 11:37 AM
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Joined: Nov 2003
Posts: 1,033 Madison, Wisconsin
chrisnben
OP
super stock
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OP
super stock
Joined: Nov 2003
Posts: 1,033
Madison, Wisconsin
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Did some digging- found out that the Borgeson P/S box will fit! Pretty stoked now that I can run the wider front tires and parallel park this beast.
Can anyone recommend a good street tire that: A- matching set; B- sticky as possible with "decent" tread life; C- sizes 245/45/17 & 285/40/18. I'm currently finding the Nitto 555 G2.
I'm not after an autocrosser/ full boogie, but a great all-around modernized old street car. Some would say Pro tour.
Another light bulb went off in my head yesterday (doesn't happen often)- I've been working on ideas to fit 3" tailpipes on the Duster with the rear spring offset kit up against the rails. As many know, there IS NOT any room on the passenger's side with the stock gas tank. SO, after looking at several fuel cell options both in & under the trunk. I came up with cutting out the wheel well and welding in flat sheet to cover up the hole. Then measuring twice the '68-'70 Charger tank from Tank's Inc. (I'm using EFI) will stuff into the area underneath. It's 5" narrower & much longer. PLUS and added bonus of having the filler neck in almost the same spot & 19 gal. VS 16 gal.!! Not sure it's ever been tried before??
We're while we are waiting for the K-frame to be done, the wallet will be getting much thinner via fuel system, headers, steering, rolling stock, frame ties, fiberglass parts, Vintage Air A/C, cooling system, etc.!!
OH, P.S.- I'm trying out the Mercedes electric fan & Champion radiator on my race car. This might be the hot ticket on the Duster as well! Fellow Moparts member sells the fan controller for this- which just arrived yesterday.
'70 Cuda "Badfish 2"- in the works
Home of MoPar University- We school 'em one at a time!!
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Re: Help setting up Hemi Duster
[Re: topside]
#2111027
07/16/16 10:21 AM
07/16/16 10:21 AM
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Joined: Nov 2003
Posts: 1,033 Madison, Wisconsin
chrisnben
OP
super stock
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OP
super stock
Joined: Nov 2003
Posts: 1,033
Madison, Wisconsin
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As far as tires, I recently put a set of Cooper Zeon RS3S on my Mustang and am happy with them. Way better grip than anything else I've had on that car. There's an all-weather version & a summer, the S is summer. I have a new pair in the 245/45R17 size because that's what I 1st put on the front, but changed to the 40-series for ft/rear OD similarity. I have them for sale in the Wheels & Tires section if you're interested. Sounds like a cool & unique build: a Gen3 Hemi anything that can corner is not common. I bought the Nittos yesterday, so I'm good there. The Hemi is a 528" gen 2, not a new hemi. Now you can see the challenge
'70 Cuda "Badfish 2"- in the works
Home of MoPar University- We school 'em one at a time!!
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Re: Help setting up Hemi Duster
[Re: chrisnben]
#2111052
07/16/16 11:30 AM
07/16/16 11:30 AM
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Joined: Jan 2003
Posts: 12,171 Benton, IL.
DaveRS23
Special needs idiot
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Special needs idiot
Joined: Jan 2003
Posts: 12,171
Benton, IL.
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"OH, P.S.- I'm trying out the Mercedes electric fan & Champion radiator on my race car. This might be the hot ticket on the Duster as well! Fellow Moparts member sells the fan controller for this- which just arrived yesterday."
I used that same combo on my build. Nothing else would fit. And even then I had to angle the radiator a bit to get it to fit. The fan, radiator, and controller worked well together and kept the engine cool. But you can sure tell that the Champion radiators are cheap. Every one I have had has been twisted. Two were bad enough that I couldn't use them. But the ones that I have used worked okay.
Master, again and still
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Re: Help setting up Hemi Duster
[Re: chrisnben]
#2111716
07/17/16 12:49 PM
07/17/16 12:49 PM
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Joined: Nov 2003
Posts: 1,033 Madison, Wisconsin
chrisnben
OP
super stock
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OP
super stock
Joined: Nov 2003
Posts: 1,033
Madison, Wisconsin
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Spoke with Hemi Denny on Friday. Looks like we are going with his upper & lower control arms for the Mopar K-frame along with coilovers to eliminate the torsion bars and have more header room. This will also give us the spring rate we need (which apparently is 400-500# with the big engine).
'70 Cuda "Badfish 2"- in the works
Home of MoPar University- We school 'em one at a time!!
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Re: Help setting up Hemi Duster
[Re: chrisnben]
#2111782
07/17/16 02:23 PM
07/17/16 02:23 PM
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Joined: Sep 2007
Posts: 14,889 up yours
Supercuda
About to go away
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About to go away
Joined: Sep 2007
Posts: 14,889
up yours
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search the corners forum for further discussions on aftermarket K members, Hemi Denny included. Pros and cons.
They say there are no such thing as a stupid question. They say there is always the exception that proves the rule. Don't be the exception.
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Re: Help setting up Hemi Duster
[Re: Supercuda]
#2111836
07/17/16 03:36 PM
07/17/16 03:36 PM
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Joined: Nov 2003
Posts: 1,033 Madison, Wisconsin
chrisnben
OP
super stock
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OP
super stock
Joined: Nov 2003
Posts: 1,033
Madison, Wisconsin
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search the corners forum for further discussions on aftermarket K members, Hemi Denny included. Pros and cons.
The K is a modified stock unit that Denny makes UCA's and LCA's for with coilovers along with upper support bars. Scott- the Hemi is a MP block about 7 years old.
'70 Cuda "Badfish 2"- in the works
Home of MoPar University- We school 'em one at a time!!
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Re: Help setting up Hemi Duster
[Re: chrisnben]
#2112367
07/18/16 12:19 PM
07/18/16 12:19 PM
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Joined: Jan 2003
Posts: 5,394 Pikes Peak Country
TC@HP2
master
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master
Joined: Jan 2003
Posts: 5,394
Pikes Peak Country
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This will also give us the spring rate we need (which apparently is 400-500# with the big engine). I don't know what their motion ratios are, but this should put you around 250-300# wheel rates. This is equivilent to 1.06-1.12 A body t-bars.
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