Re: how much you turning your 572 ci
[Re: RBDuster]
#1490872
08/26/13 07:13 AM
08/26/13 07:13 AM
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Joined: Mar 2006
Posts: 9,836
MI, usa
dvw
master
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master
Joined: Mar 2006
Posts: 9,836
MI, usa
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I shift my 572 at 7100,traps about 6800. 9.30@146Doug
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Re: how much you turning your 572 ci
[Re: rebel]
#1490874
08/26/13 07:43 AM
08/26/13 07:43 AM
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Joined: Feb 2005
Posts: 20,174
PA.
pittsburghracer
"Little"John
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"Little"John
Joined: Feb 2005
Posts: 20,174
PA.
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Was shifting my 440-1 headed 572 at 6800-7000 and going 8.48@159.50 but I probably will raise the rpm some when it comes back out with B1 heads.
1970 Duster
Edelbrock headed 408
5.984@112.52
422 Indy headed small block
5.982@112.56 mph
9.42@138.27
Livin and lovin life one day at a time
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Re: how much you turning your 572 ci
[Re: gregsdart]
#1490876
08/26/13 12:08 PM
08/26/13 12:08 PM
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Joined: Sep 2003
Posts: 481
Cheswick, PA
Bob_Spelic
mopar
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mopar
Joined: Sep 2003
Posts: 481
Cheswick, PA
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I have not been out much with the new dragster this year. Many ‘new car” issues.
572 inches, 14.7 compression, 1050 alcohol carb, 440-1 heads, 4.10 gears, Powerglide, 34.5 tall tires.
Both with the S&W hardtail and the new 4 link car, 7000 shift point and 7200/7300 trap…..7.90’s at 168
Bob Spelic
Last edited by Bob_Spelic; 08/26/13 12:10 PM.
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Re: how much you turning your 572 ci
[Re: Challenger 1]
#1490878
08/26/13 02:08 PM
08/26/13 02:08 PM
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Joined: Jan 2003
Posts: 19,363
Las Vegas
Al_Alguire
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 19,363
Las Vegas
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Way to many variable to gather any useful information here if indeed that is what the original poster is after. But might be fun to see what kind of answers we get. I will say more often that not when we help guys with BB Mopars we usually find wherever it was they were shifting that it was to high. After a day of testing and tweaking we usually find they go faster shifting lower than they think they needed.
To more answer the question directly my old 572" Hemi we found it ran best being shifted at6400, went 8.77 that way at 3100lbs. FWIW I shift my 525" B1 at 83-8400 when we run it all out. The other motor is 499" and is shifted at 94-9700. But neither is your typical BB Mopar
"I am not ashamed to confess I am ignorant of what I do not know."
"It's never wrong to do the right thing"
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Re: how much you turning your 572 ci
[Re: Al_Alguire]
#1490880
08/26/13 07:23 PM
08/26/13 07:23 PM
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Joined: Mar 2006
Posts: 9,836
MI, usa
dvw
master
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master
Joined: Mar 2006
Posts: 9,836
MI, usa
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Quote:
Way to many variable to gather any useful information here if indeed that is what the original poster is after. But might be fun to see what kind of answers we get. I will say more often that not when we help guys with BB Mopars we usually find wherever it was they were shifting that it was to high. After a day of testing and tweaking we usually find they go faster shifting lower than they think they needed.
To more answer the question directly my old 572" Hemi we found it ran best being shifted at6400, went 8.77 that way at 3100lbs. FWIW I shift my 525" B1 at 83-8400 when we run it all out. The other motor is 499" and is shifted at 94-9700. But neither is your typical BB Mopar
We'll find out this weekend. My bet is you're correct.
Doug
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This was in 1992
I use to think that I wanted the converter to flash close to peak torque RPm and shift the motor at or close to peak HP RPM, my 518 C.i. pump gas 6 pak motor didn't like that at all 
It wanted to be shifted at 7000 to 7400 RPM 
That motor made peak torque at 4600 RPM and peak HP at 5600 RPM 
