Moparts

72 Mr Norm GSS Demon

Posted By: stage3

72 Mr Norm GSS Demon - 05/31/10 01:06 AM

Anyone running a car street/drag with an original style 72 setup? I know Paxton and Procharger make setups for these cars but I'm more interested in the original pieces as far as installed location, air box(w/t/guad) etc. I would like to find an original kit if anyone has one(dreaming). Thanks for any input/help!
Posted By: Rhinodart

Re: 72 Mr Norm GSS Demon - 05/31/10 01:19 AM

There was a used kit on eBay that sold for $1500 without the carb a couple weeks ago. We bought a new kit from a guy in California who had three of them around $3K a few years back, so they are still out there!
Posted By: NV69B7RR

Re: 72 Mr Norm GSS Demon - 05/31/10 01:24 AM

A complete original Mr Norms blower set up with brackets and pulleys sold on ebay for $1500 recently.
http://cgi.ebay.com/ebaymotors/ws/eBayIS...e=STRK:MEWAX:IT

I'd love to hear about someone running one too. The original 72 GSS Demons are extremely rare and valuable that you won't find too many people wanting to beat on one. Rhinodart may have some info about how they run.
Posted By: ademon

Re: 72 Mr Norm GSS Demon - 05/31/10 01:28 AM

i should have bought that one when it was on Craigs list the week before for $800

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Posted By: Rhinodart

Re: 72 Mr Norm GSS Demon - 05/31/10 01:53 AM

I have driven the Petty Blue 72 that my boss owns and it is pretty slow compared to his 71 six-pack car! Having said that, it is not tuned to run hard and is basically a show-only car. We have another one that might get restored eventually, maybe this one can be thrashed on? The other 72 Paxton car I have driven needed to be restored and was pretty worn out. I would love to see how these run when new, maybe one day!
Posted By: ademon

Re: 72 Mr Norm GSS Demon - 05/31/10 05:55 AM

wasn't there a mag test from back in the day on one? i think it went in the high 13's maybe it was a ringer ? stock 72's were low to mid 15's i think
Posted By: stage3

Re: 72 Mr Norm GSS Demon - 06/01/10 04:27 AM

I do have the drag test of a 72 Mr Norm GSS car that had 3.55 gears and ran a best of 13.92 at 106. MPH is phenomenal for ET, but was this because if tire spin which usually equates to this. I used to have a 73 340 Dart with stock 340 and 3.91 gears that ran a best of 13.92 but I believe the MPH was in the mid 90's and was hooking. I saw the supercharger on Ebay and kick myself for not bidding on it. I would love to find a "complete" kit and see what it will do. I think I will pursue the the California connection and see what he has.
Posted By: 72demon416

Re: 72 Mr Norm GSS Demon - 06/01/10 05:02 AM

I came very close to buying one of the complete kits off ebay a couple of years ago and had planned on a very healthy stroker buildup with it. Once I got into the facts of it though I determined that the unit does not flow much air IF your planning on doing much modifying aside from the blower. I think it would be great for a 12 sec ride but you will hit a "brick wall" with airflow if you want to go much more. I chose to go naturally aspirated as my 416 with W2's, .600 solid cam and tti's would have seen little if any gain for the money spent and I wanted to have room to grow for future modifications.
The moral to my story is think about your future performance goals before jumping aboard.
Good luck with whatever you do though
Rick
Posted By: DaytonaTurbo

Re: 72 Mr Norm GSS Demon - 06/01/10 06:13 AM

You're right, you would have hit a brick wall in terms of performance. I know even the 80's and 90's paxton ball drive superchargers were made with mild small blocks in mind. With some upgrades they can perform but they were originally intended for mild small blocks.
Posted By: dangina

Re: 72 Mr Norm GSS Demon - 06/01/10 12:40 PM

whats the hp increase with one of these setups?(340)
Posted By: gss

Re: 72 Mr Norm GSS Demon - 06/11/10 04:40 AM

Quote:

would like to find an original kit if anyone has one(dreaming). Thanks for any input/help!




Craig Conley at Paradise Wheels in California bought all the early stuff from Paxton. He has the original tooling and a lot of NOS stuff. He would be the guy to talk to.

A few years ago I spoke with someone who apparently had some experience with these cars. He said the factory 340 cams work poorly with the blower. He used 318 cams which he claimed worked much better. No numbers to back that up though.
Posted By: Demon340GSS

Re: 72 Mr Norm GSS Demon - 06/12/10 11:10 PM

I drive my original B3 blue 72 GSS Demon about once a month to keep it in shape.
It is just like Rhino said. It is slower than my six pack 71 is by the seat of the pants, But really they would have to be run side by side against each other to be fair as the six pack car has more gear, larger cam and and yet it still is alot of fun to drive.
I have lots of this stuff as I have collected a few extra parts and still have two out of the three GSS demon 340's still.
I may be able to help you with your questions.

I was told that my blue 72 is putting out about 450 hp.
It spins the tires easily on launch, and has run a best of 13.04 at 104mph with 3.91 gears and stock exhaust and tires.
I live in Orange City, Florida.
Grant Eaton 407-947-9005

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Posted By: Demon340GSS

Re: 72 Mr Norm GSS Demon - 06/12/10 11:20 PM

another picture engine compartment.
Grant Eaton 719-330-0468

Original 1972 Mr Norms Super Demon 340.
Factory sunroof, 4 speed console, Rear Window louvers, Fender tag coded speicial order Car,hood tach, . original invoices and receipts,Front manual disc brakes,
Only on it's second set of tires since car new.
Less than 100,000 documented miles driven.
One of three GSD Dodge Demon 340's we own.

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Posted By: Demon340GSS

Re: 72 Mr Norm GSS Demon - 06/12/10 11:25 PM

This pic is of the top.

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Posted By: Demon340GSS

Re: 72 Mr Norm GSS Demon - 06/12/10 11:47 PM

Picture of the 340 GSS engine as setup for the orange and white stripe demon 340 GSS.
It is modified for racing with an upgraded impeller and a cog style pulley to keep belt from slipping in an effort to get more boost.
cam is a solid cam with 528 lift, 284 duration on 112 degree centerline.
Its going back into the orange car with the original "Mr Norms" headers. But came out fo the car with the early HP manifolds on it.
340 "U" castings with big valves.
Trw forged pistons.
NOS cheater nos kit plumbed into bottom of original Norms airbox to help hide it.
4.56 gear.
4200 stall.
28x10.50 slicks

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Posted By: Demon340GSS

Re: 72 Mr Norm GSS Demon - 06/12/10 11:51 PM

The orange and white striped Demon 340 GSS with Plaid (houndstooth ???) interior.

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Posted By: gss

Re: 72 Mr Norm GSS Demon - 06/13/10 01:50 AM

Quote:


Factory sunroof, 4 speed console.




That is a way cool car! Mine is Top Banana yellow with a black vinyl top. I am sure you know of the blue 4 speed 72 GSS that was in the magazines a few years ago. I seem to recall that they claimed it was the only 4 speed car. Guess they were wrong.
Posted By: gss

Re: 72 Mr Norm GSS Demon - 06/13/10 01:58 AM

Quote:

Picture of the 340 GSS engine as setup for the orange and white stripe demon 340 GSS.
It is modified for racing with an upgraded impeller and a cog style pulley to keep belt from slipping in an effort to get more boost.
cam is a solid cam with 528 lift, 284 duration on 112 degree centerline.
Its going back into the orange car with the original "Mr Norms" headers. But came out fo the car with the early HP manifolds on it.
340 "U" castings with big valves.
Trw forged pistons.
NOS cheater nos kit plumbed into bottom of original Norms airbox to help hide it.
4.56 gear.
4200 stall.
28x10.50 slicks




Wow, did you ever run it like that? What were the times?

The weakness of the sn60 blower is its inability to withstand high RPM. Did the impeller change help that? I would be pretty nervous with the 4.56 rear.
Posted By: 72demon416

Re: 72 Mr Norm GSS Demon - 06/13/10 06:07 AM

Grant, that is absolutely the nicest combo/best equipt Demon on this planet in my opinion.
I tried to buy Bill Seftons when it was for sale on ebay- but we know how that turned out...
If you ever want to part with yours mine could use a stablemate and I just happen to have a extra empty garage stall

Rick
Posted By: scatpacktom

Re: 72 Mr Norm GSS Demon - 07/24/10 01:56 PM

Maybe one of you guys know what carb hides in that little box? Seems to me the 72 340 carb has the arm for the anti-diesel solenoid. Did Mr norm just whack it off? Any pics of inside the airbox?
Posted By: Demon340GSS

Re: 72 Mr Norm GSS Demon - 07/26/11 03:41 AM

Thankyou,
I apologize for not returning to this post earlier.
I have returned to a stroker 340 motor build I started years ago and don't even have a car to put it in yet !!!
Anyone can still reach me at the same email or thru here, But my number changed now.
Grant Eaton 386-561-1181
Finally stepped up to a smart phone!
The Orange GSS is running under it's own power now again and we hope to go to either Orlando Speedworld or Gainsville soon, to see what it will do.
I will post a video of it when we get a few passes with it..
It does not have license plates on it so we have to be carefull sneaking it around the airpark...
We feel that it should be in the high 11's with any luck, BUT.... My wife wants to race the big block dart (her car) first...
The orange gss is an Automatic car (727) and so it does not make it so hard on the SN60 like my blue gss 4 speed.
I just am doing it to see what I can get it to (et and speed) with a race setup instead of the stock gss SN60 supercharger like my Blue demon gss has.
I have been taking turns working on three different demon 340's and only can do a little at a time until I get more shop space.
I am looking to purchase an enclosed trailer to haul the car instead of my open car hauler we have if anyone here in the florida area has one for sale, Please let me know.
I can't afford a new enclosed trailer and feel I should be able to find a used one thats in good shape..
I hope.
Thanks again for the nice comments about my blue demon gss, I should have kept the other blue one in hindsight now, Oh well. Bill gives it a a very good home too.
Grant Eaton
Posted By: 9 Sec Phill

Re: 72 Mr Norm GSS Demon - 08/01/11 11:27 PM

I have a few pics of Bills. Hope they help.

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Posted By: 9 Sec Phill

Re: 72 Mr Norm GSS Demon - 08/01/11 11:28 PM

Inside, notice the lever?

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Posted By: 9 Sec Phill

Re: 72 Mr Norm GSS Demon - 08/01/11 11:30 PM

Now I was told they didnt run a very high Presure as it would crush the floats in the carb.
Posted By: feets

Re: 72 Mr Norm GSS Demon - 08/04/11 09:37 PM

Nitrophyl floats solved that problem.
Posted By: Demon340GSS

Re: 72 Mr Norm GSS Demon - 02/29/12 06:36 PM

Sorry I did not get back to this site sooner!
Anyways, I looked at my carb very well and it looks to me that even though it is the correct carb, I feel that they must have just cut that arm you mention off ..
It is a clean and smooth cut if that is how they did it?
I have several spare thermoquads for both 72' 340 manual and also the auto trans, And they all have the arm that you speak of...

So I think they cut it off !
Just FYI.
Grant Eaton 386-561-1181
Posted By: scatpacktom

Re: 72 Mr Norm GSS Demon - 02/29/12 06:54 PM

Hey Thanks Grant. I always wondered about that. I have a twin to your car. It was sold at Grand Spaulding but isn't a blower car that I can tell. It will be though, pass me the cutting torch.
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