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What to do to make this hemi run 11.51? #361926
06/29/09 08:00 PM 06/29/09 08:00 PM
Joined: Jan 2004
Posts: 2,103
East Coast, NJ
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fig426 Offline OP
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As some of you know, I've been sorting out the SS/DA Hemi Challenger. I found a World block which will be a 4.500 bore. I don't have a crank, rods, pistons, intake or cam. I'll be running stock cast heads with maybe some light port work. The car can't go faster than 11.5 because I don't want to put a roll bar in the car. It will weigh in about 3800 with me in it. Where do I go from here? Make it a 528? 572? Header size? Cam? etc.... I want to keep the dual quads with the shaker hood to keep it as close to the way it was as possible.

Chris from New Jersey
Re: What to do to make this hemi run 11.51? [Re: fig426] #361927
06/29/09 08:39 PM 06/29/09 08:39 PM
Joined: Oct 2008
Posts: 1,015
Down South
DaKuda Offline
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11.51....????? Remove 4 plug wires.....that should get you there.....

Re: What to do to make this hemi run 11.51? [Re: fig426] #361928
06/29/09 08:46 PM 06/29/09 08:46 PM
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Chilliwack B.C. Canada
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426 incher with a set of headers, small hydraulic cam. 3500 convertor and slicks should go 11.50.
I would go a 528 with about 10-1 compression and a hydralic cam. This will make it extremely streetable. No reason to spend money on porting the heads.

Sheldon
Re: What to do to make this hemi run 11.51? [Re: DaKuda] #361929
06/29/09 08:46 PM 06/29/09 08:46 PM
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Hamiltucky
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Hamiltucky
half throttle might slow it to 11.50
Re: What to do to make this hemi run 11.51? [Re: RBDuster] #361930
06/29/09 09:14 PM 06/29/09 09:14 PM
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East Coast, NJ
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fig426 Offline OP
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Quote:

half throttle might slow it to 11.50


A black AAR hood pin under the peddle?

Chris from New Jersey
Re: What to do to make this hemi run 11.51? [Re: fig426] #361931
06/29/09 09:17 PM 06/29/09 09:17 PM
Joined: Sep 2005
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In the 8's
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Just find a old blown head gasket and wad it up and stick in the secondary's .

Re: What to do to make this hemi run 11.51? [Re: fig426] #361932
06/29/09 09:17 PM 06/29/09 09:17 PM
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did someone remove the roll bars? how was it a ss/da with out one?
Re: What to do to make this hemi run 11.51? [Re: Quicktree] #361933
06/29/09 09:20 PM 06/29/09 09:20 PM
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East Coast, NJ
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fig426 Offline OP
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As far as I know, the last time it was raced was 1975. Apparently the rules were a bit different back then?

Chris from New Jersey
Re: What to do to make this hemi run 11.51? [Re: FY1TA] #361934
06/29/09 09:25 PM 06/29/09 09:25 PM
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East Coast, NJ
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fig426 Offline OP
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Quote:

Just find a old blown head gasket and wad it up and stick in the secondary's .



I just happen to have one from the T/A!! It should work right? Maybe i'll just find some heads where the seats are falling out of and use them? What do you think?

Chris from New Jersey
Re: What to do to make this hemi run 11.51? [Re: fig426] #361935
06/29/09 09:26 PM 06/29/09 09:26 PM
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Quote:

As far as I know, the last time it was raced was 1975. Apparently the rules were a bit different back then?



I started racing in 75 and im pretty sure they were required back then. maybe BG or somebody can varify that.
Re: What to do to make this hemi run 11.51? [Re: fig426] #361936
06/29/09 09:26 PM 06/29/09 09:26 PM
Joined: Sep 2006
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Columbus, Ohio
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Just put it on the track.

Re: What to do to make this hemi run 11.51? [Re: Quicktree] #361937
06/29/09 09:36 PM 06/29/09 09:36 PM
Joined: Jan 2004
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East Coast, NJ
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fig426 Offline OP
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Quote:

Quote:

As far as I know, the last time it was raced was 1975. Apparently the rules were a bit different back then?



I started racing in 75 and im pretty sure they were required back then. maybe BG or somebody can varify that.



I don't know? I was 5 years old. I just know some of the history of the car and that's all. I'm here now looking for some education.

Chris from New Jersey
Re: What to do to make this hemi run 11.51? [Re: fig426] #361938
06/30/09 07:29 AM 06/30/09 07:29 AM
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Maryland
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Dads426 Offline
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A friend of mine ran a SS/DA 70 cuda in the mid 70's with a bolt-in 3-point Lakewood rollbar. Try that today...


2012 422 Allstars NSS Champion
2013 422 Allstars NSS Champion
2014 422 Allstars NSS Champion
Re: What to do to make this hemi run 11.51? [Re: Dads426] #361939
06/30/09 08:48 AM 06/30/09 08:48 AM
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SW Ohio
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Around '74 the NHRA changed Stock class to more of a pure stock. Cars were allowed headers and slicks. With those steel wheels and small slicks, I would guess your car was in Stock, all the SS cars were mini-tubbed.

Why not cage it and be done with it, you are already putting an aftermarket block in it, so it is not original anyway.
Re: What to do to make this hemi run 11.51? [Re: cgall] #361940
07/25/09 10:38 AM 07/25/09 10:38 AM
Joined: Jan 2004
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East Coast, NJ
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fig426 Offline OP
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Quote:

Around '74 the NHRA changed Stock class to more of a pure stock. Cars were allowed headers and slicks. With those steel wheels and small slicks, I would guess your car was in Stock, all the SS cars were mini-tubbed.

Why not cage it and be done with it, you are already putting an aftermarket block in it, so it is not original anyway.



Using a different block so the original one doesn't get hurt is much different than trashing the floor pans with a bar and support plates.

Chris from New Jersey
Re: What to do to make this hemi run 11.51? [Re: fig426] #361941
07/25/09 11:46 AM 07/25/09 11:46 AM
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NJ-USA
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Chris:

This is what I would do...

Use a stock replacement block, (unless you have the WP block already and are committed to using it). Put a 4.15 stroke crank and a solid roller or just a plain solid cam. Little port work on the heads and run a Rat Roaster and a pair of Competition series Carters. Set of TTI 2-1/4" headers.

Should EASILY run the number, and you will have the Nostalgia look covered. I am fully aware that there are much better combos out there, this would really look cool on a car like your Challenger

MB
Re: What to do to make this hemi run 11.51? [Re: HPMike] #361942
07/25/09 11:55 AM 07/25/09 11:55 AM

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chris, call
alan , arc , i have a bunch of hemi parts left over to get you where you want to be, i know i got the crank and rods for you and a cam, not sure if you want to go hydralic or roller, but he'll get you where you want to be.

Re: What to do to make this hemi run 11.51? #361943
07/25/09 03:10 PM 07/25/09 03:10 PM

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11.51...easy put a smallblock in it

Re: What to do to make this hemi run 11.51? #361944
07/25/09 03:29 PM 07/25/09 03:29 PM

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Quote:

11.51...easy put a smallblock in it



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