Duramx Grand National

Poltergeist

Ghost in the Machine
Aug 1, 2006
29,563
1
36
Ontario, Calif.
www.poltergeist.us
I saw this on another forum and thought you guys might like this. The GN is clone and has a 2001 LB7 in it. Apparently it's here in So. Cal. since there are pictures of it at Irwindale. It has 1000hp no times that I can find at the track. There are a couple of videos of it running.

Duramax GN
 

Kat

Wicked Witch of the West
Aug 2, 2006
17,899
13
38
60
Norco, CA
That is David (Diesel5) car isn't it? I didn't know it was a 1000hp though.

Sweet car :D
 

ecc_33

Junior Member
Aug 10, 2006
1,925
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Amanda, Ohio
im pretty sure its that car and i dont think its close to 1000 horse....maybe like 550....im not sure though
 

Mike L.

Got Sheep?
Staff member
Vendor/Sponsor
Aug 12, 2006
15,681
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Fullerton CA
That is Davids GN clone. I built the 4L85 trans for it and it is running tts extreme ( 485 hp on a good day ).
 

Mike L.

Got Sheep?
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Vendor/Sponsor
Aug 12, 2006
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Fullerton CA
My newest project is looking at the possabilities of one of these 4L85s in our trucks. The ETs will be quicker, and the gear ratios are sweet. 2.50,1.48, 1.1, .74. Stand alone computer will give us infinate tuning and no adaptive learn. Pressure will rise with throttle angle as it should. We will shed over 200 pounds and get more power to the wheels quicker. You will run faster and that's a fact. :D

Down Side.

The 4L85 can hold 1200 hp and 800tq at 5K. Will it hold double that tq at 2500 rpm?:eek: It will need refreshing more often I would think and it will need a full blanket because if it blows it will scatter everything and not be rebuildable at that point.:eek:

All of the above is an educated guess on my part. A light truck will be easier on the trans and as long as the tires keep spinning the trans will be fine. Problem will be when she finaly hooks; something's going to give. Maybe.
 

Mike L.

Got Sheep?
Staff member
Vendor/Sponsor
Aug 12, 2006
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Fullerton CA
It would be interesting to see what Casper would run with this trans. Even if it's only once.