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Re: Boss 302 Mustang or old Mopar
[Re: PHJ426]
#1494628
05/13/14 08:19 PM
05/13/14 08:19 PM
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Joined: Mar 2003
Posts: 3,358
Berwyn, IL
challenger70
master
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master
Joined: Mar 2003
Posts: 3,358
Berwyn, IL
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Quote:
Taking that Challenger from a drag racer to a true Road and Track car is a possibility.
Problems with that are:
440 block has 1/2 filled block. not sure how well this will cool in a road and track situation time will tell.
The rear is a Dana 60 heavy
And everything else about this car is heavy except for the slant six torsion bars.
So it's heavy where it needs to be skinny and its skinny where it needs to be heavy like in the front runners and the torsion bar diameter.
I plan on running a Dana in my Charger, the durability is worth it to me, I figure it's not THAT much heavier than an 8.75 (40lbs ish I think), it's really low placed weight and it balances out the weight of the big block in front. But I could be completely wrong 
By the time I do what I did with my Challenger, forged axles, tru-trac, ect... to the 8.75 in the Charger I won't be that far off from a new s-60 and have a stronger rear for it.
I wonder if there is any other reason besides weight not to run a Dana vs. 8.75 in a pro-touring setup. 
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Re: Boss 302 Mustang or old Mopar
[Re: PHJ426]
#1494630
05/13/14 11:31 PM
05/13/14 11:31 PM
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Joined: Nov 2008
Posts: 1,491
Lethbridge, AB, Canada
dangina
pro stock
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pro stock
Joined: Nov 2008
Posts: 1,491
Lethbridge, AB, Canada
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if you haven't bought the car can I suggest an alternative? My race/drift/autox car is a AE86 (1986 toyota corolla) These cars handle amazing, I ran a supercharger on it, turbo it, pulled it out and now currently running a lexus v8 (1uzfe) you get under your 2500lbs curb weight no problem and they go like stink. Beware of the intital D tax though. If you can find them - a 81-84 toyota starlet, the curb weight in full trim is 1600lbs just to throw it out there.... 
Last edited by dangina; 05/13/14 11:39 PM.
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Re: Boss 302 Mustang or old Mopar
[Re: PHJ426]
#1494631
05/14/14 11:49 AM
05/14/14 11:49 AM
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Joined: Mar 2003
Posts: 3,358
Berwyn, IL
challenger70
master
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master
Joined: Mar 2003
Posts: 3,358
Berwyn, IL
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Quote:
Weight penalty and gear selection does not go lower than 3:54?
If you run a 26" tall tire with a 3:54 ratio on the highway with a non overdrive transmission at 65MPH in drive your close to 3000 RPM
On the Road Runner I just sold the 8 3/4" had a set of factory (Not for that car) 2.94 sure grip chunk with a 26" tall tire and in drive 1:1 the RPm's are just under 2500 at 65MPH
So for a 500RPM drop at 65MPH in drive and if your engine makes gobs of torque the 2.94's are a great option to higher in the rearend gearing so your not a dweeb RPM'ing the engine at 65MPH ........
So in order for my driving style on the highway I would like to install one of Passon's 855 5 speed transmissions into the Challenger
hmmm..you got my wheels turning. I run 3.91's and a 28" tire in my Challenger, it's perfect around town but can be a bit busy on the highway. I was figuring 3.54's and the Passon O/D 5 speed would be good to go even with a 26" tire in comparison. I gotta research what 18" rims and a 28" tire looks like, might be prety stupid looking to the point where I need to stick with a 26" tire... I am on the 855 wait list, we'll see what happens, at the speed my body guy is working I feel confident I will have the trans before I need it. 
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Re: Boss 302 Mustang or old Mopar
[Re: PHJ426]
#1494634
05/14/14 01:27 PM
05/14/14 01:27 PM
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Joined: Mar 2003
Posts: 3,358
Berwyn, IL
challenger70
master
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master
Joined: Mar 2003
Posts: 3,358
Berwyn, IL
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Quote:
Ron
You have seen Mitch's T/A at the Joliet Autobahn? His Challenger had the old wheels and tires I was running on my 72 Road Runner.
Vintage Wheel Works V48's 16x8 size 0 offset.
Tires 255/50R16 BF Goodrich Comp 2's
A square setup handles better and gave me the opportunity to carry the same size spare in the trunk on the same wheel.
Here is a pic of my 71 Runner with 26" diameter and 10" wide rubber on all 4 corners.
Yes, I was quite jealous that Mitch found that deal before me, those wheels look awesome on his car and I have always had that type of wheel in tyhe back of my head for my Challenger. I think my Challenger with a 26" tire would just go up in smoke (not that that isn't fun  ).
I will probably have to run 18's on my Charger to clear front brakes, I am wondering if 18" wheels and a 28" tire will look goofy, i.e. too much sidewall for a pro-touring type car as I want to run a square setup as well.
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Re: Boss 302 Mustang or old Mopar
[Re: ntstlgl1970]
#1494635
05/19/14 11:29 PM
05/19/14 11:29 PM
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Joined: Nov 2005
Posts: 3,456
Fly Over States
PHJ426
OP
master
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OP
master
Joined: Nov 2005
Posts: 3,456
Fly Over States
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Quote:
If you have an XR4Ti Do yourself a favor and simplify the cooling system too - the number of heater hoses on those cars is crazy and most of them are moulded. Also get to know http://rapidogroup.com/ they are the best source for Merkur specific parts. I hate to admit I even know this stuff....last shop I worked at was a Merkur "specialist"
Looks like this XR4Ti has the Rapido dual exhaust and soon to have the Rapido intercooler. The car sits lower than stock might have the Rapido springs and has Koni yellows too.
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Re: Boss 302 Mustang or old Mopar
[Re: B-Body Bull]
#1494640
03/31/15 01:12 AM
03/31/15 01:12 AM
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Joined: May 2005
Posts: 723
Houston Tx
Uhcoog1
super stock
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super stock
Joined: May 2005
Posts: 723
Houston Tx
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I'm just going to leave this here: Duster on continental R compounds vs 450 rwhp modified mustang GT on 305 pirelli R compounds https://youtu.be/8xIBdblDl0UThe above video wasn't my best driving of the weekend, but videos with traffic are more interesting than clean laps. My fastest 'hot' lap ended up just 0.4 seconds faster than the mustang, and was good enough for 4th out of 11 in the hot lap challenge (probably beating a lot of mustangs). As stated above by MrAngry and others, my duster requires much more upkeep vs the mustang, but I'm happy with the road I chose. Also- they had a production model GT350 at the track. I don't know what the sticker is going to be, but for ease of tracking, that'll be sick. We'll see how the duster fare's vs that once one makes it to the track.
-'02 Dodge Viper Ex-World Challenge racecar
-'73 Duster, 6.1 based 392 hilborn hemi, tko600, full floater rear 9", Hellwig custom bars, viper brakes, built for road course
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Re: Boss 302 Mustang or old Mopar
[Re: Uhcoog1]
#1494641
03/31/15 01:38 AM
03/31/15 01:38 AM
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Joined: Nov 2008
Posts: 1,491
Lethbridge, AB, Canada
dangina
pro stock
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pro stock
Joined: Nov 2008
Posts: 1,491
Lethbridge, AB, Canada
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Quote:
As stated above by MrAngry and others, my duster requires much more upkeep vs the mustang, but I'm happy with the road I chose.
not sure what you mean by this, curious how much do you have into your car compared to those mustangs?
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Re: Boss 302 Mustang or old Mopar
[Re: dangina]
#1494642
03/31/15 02:04 AM
03/31/15 02:04 AM
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Joined: May 2005
Posts: 723
Houston Tx
Uhcoog1
super stock
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super stock
Joined: May 2005
Posts: 723
Houston Tx
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Quote:
Quote:
As stated above by MrAngry and others, my duster requires much more upkeep vs the mustang, but I'm happy with the road I chose.
not sure what you mean by this, curious how much do you have into your car compared to those mustangs?
Less money. By a lot.
By upkeep I meant things I have to do in addition to what Mike does on his mustang (he listed tires, brake pads / fluid, and oil):
-replaced lower ball joints after a dozen events.
- alignment every couple events (or after going off track- though I went off track twice this weekend and finished the weekend- maybe a plus, given some mustangs don't fare so well off track)
-tuning the motor
-fixing things that break (broke a PS pulley this weekend and ate a couple belts)
Etc
So yes, my car is cheaper (course it is an A body). Yes, it will run right with a similarly prepped mustang. But it will require you to actually wrench on the car and keep an eye on things vs the mustang that really requires nothing.
-'02 Dodge Viper Ex-World Challenge racecar
-'73 Duster, 6.1 based 392 hilborn hemi, tko600, full floater rear 9", Hellwig custom bars, viper brakes, built for road course
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