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Re: Going to the Dyno in the AM...Guess the HP [Re: Mr.Yuck] #1213725
04/11/12 04:24 PM
04/11/12 04:24 PM
Joined: Jan 2003
Posts: 5,484
SoCal
Brian Hafliger Offline
master
Brian Hafliger  Offline
master

Joined: Jan 2003
Posts: 5,484
SoCal
Quote:

Quote:

Based on my setup, mine yours
440 496
solid .590 roller .640
comp 12.7.1 10.5.1
intake victor SD
carb 950 950
heads MCH RPM's on both
mine approx 600 hp yours 630 hp




how can you say a guy that has 56 more cubic inches is only going to make 30 more hp?




2pts. compression is part of it...


Brian Hafliger
Re: Going to the Dyno in the AM...Guess the HP [Re: A70Runner] #1213726
04/11/12 04:27 PM
04/11/12 04:27 PM
Joined: May 2011
Posts: 4,489
northern,Ohio,USA
C
Clanton Offline
master
Clanton  Offline
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C

Joined: May 2011
Posts: 4,489
northern,Ohio,USA
Quote:

[Email]610@5700[/Email] and climbing before rocker shaft problems ended the day.



i think the engine gains 10hp per 100 more rpm on the dyno +/- to what the cam,carb,heads will allow.

Last edited by Clanton; 04/11/12 04:29 PM.

GOTBOOST!New improved with Victor heads.
http://www.enginelabs.com/mopar-big-bloc...t-of-necessity/
Re: Going to the Dyno in the AM...Guess the HP [Re: RAMM] #1213727
04/12/12 11:20 AM
04/12/12 11:20 AM
Joined: Jan 2003
Posts: 971
Mooresville, NC
A70Runner Offline OP
super stock
A70Runner  Offline OP
super stock

Joined: Jan 2003
Posts: 971
Mooresville, NC
Quote:

What was the nature of the problem? What was the torque looking like? J.Rob




Seized the rockers to the shafts. tq 598@4900


"People Think I'm Insane Because I Am Frowning All The Time" Black Sabbath
Re: Going to the Dyno in the AM...Guess the HP [Re: A70Runner] #1213728
04/12/12 11:26 AM
04/12/12 11:26 AM
Joined: May 2011
Posts: 4,489
northern,Ohio,USA
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Clanton Offline
master
Clanton  Offline
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C

Joined: May 2011
Posts: 4,489
northern,Ohio,USA
Quote:

Quote:

What was the nature of the problem? What was the torque looking like? J.Rob




Seized the rockers to the shafts. tq [Email]598@4900[/Email]



ouch.


GOTBOOST!New improved with Victor heads.
http://www.enginelabs.com/mopar-big-bloc...t-of-necessity/
Re: Going to the Dyno in the AM...Guess the HP [Re: A70Runner] #1213729
04/12/12 11:35 AM
04/12/12 11:35 AM
Joined: Jan 2003
Posts: 24,562
Brookeville, Md
Mr.Yuck Offline
Not enough dumb comments...yet
Mr.Yuck  Offline
Not enough dumb comments...yet

Joined: Jan 2003
Posts: 24,562
Brookeville, Md
Quote:

Quote:

What was the nature of the problem? What was the torque looking like? J.Rob




Seized the rockers to the shafts. tq [Email]598@4900[/Email]




how does that happen? lack of oil? I would think they'd make a bunch on noise before they siezed up...

Re: Going to the Dyno in the AM...Guess the HP [Re: A70Runner] #1213730
04/12/12 11:44 AM
04/12/12 11:44 AM
Joined: Jan 2003
Posts: 4,045
Shelby Twp. Mi
HardcoreB Offline
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Posts: 4,045
Shelby Twp. Mi
Sorry about your luck... I have some new rockers for sale in classifieds.

Re: Going to the Dyno in the AM...Guess the HP [Re: Mr.Yuck] #1213731
04/12/12 11:49 AM
04/12/12 11:49 AM
Joined: Jan 2003
Posts: 74,979
U.S.S.A.
JohnRR Offline
I Win
JohnRR  Offline
I Win

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Posts: 74,979
U.S.S.A.
Quote:

Quote:

Quote:

What was the nature of the problem? What was the torque looking like? J.Rob




Seized the rockers to the shafts. tq [Email]598@4900[/Email]




how does that happen? lack of oil? I would think they'd make a bunch on noise before they siezed up...




Possible the springs are too stiff for those rockers ?

Have you ever dynoed and engine or been present for one ? You aren't in the room with the engine, headers are usually open, there is a lot of noise .

Last edited by JohnRR; 04/12/12 12:28 PM.
Re: Going to the Dyno in the AM...Guess the HP [Re: JohnRR] #1213732
04/12/12 12:09 PM
04/12/12 12:09 PM
Joined: Jan 2003
Posts: 24,562
Brookeville, Md
Mr.Yuck Offline
Not enough dumb comments...yet
Mr.Yuck  Offline
Not enough dumb comments...yet

Joined: Jan 2003
Posts: 24,562
Brookeville, Md
Quote:

Quote:

Quote:

Quote:

What was the nature of the problem? What was the torque looking like? J.Rob




Seized the rockers to the shafts. tq [Email]598@4900[/Email]




how does that happen? lack of oil? I would think they'd make a bunch on noise before they siezed up...




In his case using rockers rated below the spring pressure.

Have you ever dynoed and engine or been present for one ? YOu aren't in the room with the engine , headers are usually open , there is a lot of noise .




just chassis dyno.

Re: Going to the Dyno in the AM...Guess the HP [Re: JohnRR] #1213733
04/12/12 12:10 PM
04/12/12 12:10 PM
Joined: Jan 2003
Posts: 971
Mooresville, NC
A70Runner Offline OP
super stock
A70Runner  Offline OP
super stock

Joined: Jan 2003
Posts: 971
Mooresville, NC
Just talked to Comp. They said those rockers should be fine with my spring pressures.(or at least the new design ones.)


"People Think I'm Insane Because I Am Frowning All The Time" Black Sabbath
Re: Going to the Dyno in the AM...Guess the HP [Re: A70Runner] #1213734
04/12/12 12:27 PM
04/12/12 12:27 PM
Joined: Jan 2003
Posts: 74,979
U.S.S.A.
JohnRR Offline
I Win
JohnRR  Offline
I Win

Joined: Jan 2003
Posts: 74,979
U.S.S.A.
Quote:

Just talked to Comp. They said those rockers should be fine with my spring pressures.(or at least the new design ones.)




I thought this came up before and that 500 was the number ?? Are yours considered the new design ?

Mods to your rocker oiling ???

Are they going to warranty them ?

Re: Going to the Dyno in the AM...Guess the HP [Re: A70Runner] #1213735
04/12/12 06:04 PM
04/12/12 06:04 PM
Joined: Nov 2006
Posts: 1,456
oklahoma
F
forphorty Offline
pro stock
forphorty  Offline
pro stock
F

Joined: Nov 2006
Posts: 1,456
oklahoma
Are these the Comp Pro Magnums? Seems like a few people were having those rockers bushed due to the steel-against- steel galling..... Never mind, i see you have started another post.

Last edited by forphorty; 04/12/12 06:07 PM.
Re: Going to the Dyno in the AM...Guess the HP [Re: forphorty] #1213736
04/12/12 06:34 PM
04/12/12 06:34 PM
Joined: Apr 2011
Posts: 319
jonestown,pa
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dmking Offline
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Posts: 319
jonestown,pa
my 440 made 590ftlb at 4800 but stopped at 605 at 5800 cam at 104 solid. now at 108 and it picked up a strong >4 to .5 in the 1/4.
i may put it in at 110 this season.....

Re: Going to the Dyno in the AM...Guess the HP [Re: dmking] #1213737
07/22/12 04:12 PM
07/22/12 04:12 PM
Joined: Jan 2003
Posts: 971
Mooresville, NC
A70Runner Offline OP
super stock
A70Runner  Offline OP
super stock

Joined: Jan 2003
Posts: 971
Mooresville, NC
Ok finally got back to the dyno. Same combination execept Harlond Sharp rockers......

657.5 hp @ 6100
638.6 tq @ 4800

on Sunoco 93!!

Video of pull

Tried a M1 with 1" spacer on it also....
ran 1 hp under the sd. The sd had a more straight curve to it. the m1 was very choppy. Sorry can't find the sheet right now for the M1 so no exact numbers.

All in all made 16 pulls yesterday. Only "scare" was losing 50hp on the first run with the M1. found a piece of bowl gasket in the front jet. No harm no foul!!

Very Happy!!!


"People Think I'm Insane Because I Am Frowning All The Time" Black Sabbath
Re: Going to the Dyno in the AM...Guess the HP [Re: A70Runner] #1213738
07/22/12 05:02 PM
07/22/12 05:02 PM
Joined: Oct 2003
Posts: 3,698
NE Oklahoma
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Von Offline
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Posts: 3,698
NE Oklahoma
Nice numbers.

Wondering what your .050 duration numbers are on the cam?


72 RR, Pump gas 440, 452s, 3800 lbs, Corked, ET Radials,. 11.33@117.72. Same car, bone stock 346s, 9.5 comp, baby solid. 12.24@110.
Re: Going to the Dyno in the AM...Guess the HP [Re: Von] #1213739
07/23/12 01:16 PM
07/23/12 01:16 PM
Joined: Apr 2009
Posts: 447
NJ
JCCuda Offline
mopar
JCCuda  Offline
mopar

Joined: Apr 2009
Posts: 447
NJ
Hey Jim congrats on finally get that thing running on the dyno. Made some good numbers Todd and Duane were keeping me posted. I unfortunately was working in an attic (the exciting life of an HVAC guy) in Toms River while you guys were having fun. I couldn't believe that the M1 wasn't a little better than the SD. Now hurry up and get it in the car and see what it does. I'm saying 10.50 at 127-128. Good luck. And tell us what the @.050 numbers are and the lobe seperation.

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