Re: How do Indy's rocker shafts hold up to roller springs?
[Re: Old School]
#965906
04/04/11 10:45 PM
04/04/11 10:45 PM
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Joined: Jun 2010
Posts: 469 Tennessee
steeldust
mopar
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mopar
Joined: Jun 2010
Posts: 469
Tennessee
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Quote:
Quote:
Just curious if the Indy rocker arm shafts like they provide w/ their 440-1 kit hold up to 600#s OK, or if they're not beefy enough and end up oblonged / egg shaped after usage. These would be for use w/ plain-bearing style rockers, not needle-bearing fulcrums.
shafts seem ok, but this is what there rocker arms do with to much pressure....
I broke three 1.5 offset rocker on a 640 lift cam last year they were IND black arms i know four guys that have broke rockers and they went to JESEL but i got me a set of T&D shaft mount rockers i got 1.6 rockers on a 725 lift cam i will see if they hold up in a 572 stoker. GOOD LUCK
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Re: How do Indy's rocker shafts hold up to roller springs?
[Re: Old School]
#965910
04/05/11 11:31 AM
04/05/11 11:31 AM
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Joined: Jan 2003
Posts: 16,930 NC
440Jim
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 16,930
NC
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Quote:
shafts seem ok, but this is what there rocker arms do with to much pressure....
What spring pressures and how much time were on the rockers?
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Re: How do Indy's rocker shafts hold up to roller springs?
[Re: steeldust]
#965911
04/05/11 11:33 AM
04/05/11 11:33 AM
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Joined: Jan 2003
Posts: 16,930 NC
440Jim
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 16,930
NC
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Quote:
I broke three 1.5 offset rocker on a 640 lift cam last year they were IND black arms i know four guys that have broke rockers
What spring pressures and how many passes when you started breaking them?
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Re: How do Indy's rocker shafts hold up to roller springs?
[Re: BradH]
#965912
04/05/11 11:50 AM
04/05/11 11:50 AM
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Joined: Nov 2004
Posts: 16,533 On the run…
BloFish
I Live Here
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I Live Here
Joined: Nov 2004
Posts: 16,533
On the run…
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Did you give up on the VI's Brad and switch to Indy?
It really doesn't matter whether you win or lose… as long as you look good doing it!
‘65 A100 ‘69 ‘Cuda ‘73 Vega GT ‘06 Mega Cab ‘14 Mercedes SLK
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Re: How do Indy's rocker shafts hold up to roller springs?
[Re: BloFish]
#965913
04/05/11 11:54 AM
04/05/11 11:54 AM
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Joined: Jan 2003
Posts: 15,439 Val-haul-ass... eventually
BradH
OP
Taking time off to work on my car
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OP
Taking time off to work on my car
Joined: Jan 2003
Posts: 15,439
Val-haul-ass... eventually
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Quote:
Did you give up on the VI's Brad and switch to Indy?
The Stage VIs have a pending deal on them; this is just looking into options for shafts for the Victors since Hughes doesn't sell theirs separately anymore (only as part of rocker arm kits) and my used RAS shafts are going w/ the Stage VIs. Will still be using Hughes/Probe rockers w/ the Victors.
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Re: How do Indy's rocker shafts hold up to roller springs?
[Re: RADAMX]
#965917
04/05/11 02:53 PM
04/05/11 02:53 PM
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Joined: Jun 2009
Posts: 644 Minnesota
Barnstorm
mopar
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mopar
Joined: Jun 2009
Posts: 644
Minnesota
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We use Mopar perf HD shafts with Comp 948 springs {950@ 1.20 open] and Indy black 1.5's...geometry is dead on with plenty of oil uptop. 440-1 offsets....broke 1 ex rocker in 15 yrs. Lucky?
The little old lady from Pasadena is back!
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Re: How do Indy's rocker shafts hold up to roller springs?
[Re: Old School]
#965918
06/16/11 01:54 PM
06/16/11 01:54 PM
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Joined: Aug 2008
Posts: 4,075 Mo.
racerx
master
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master
Joined: Aug 2008
Posts: 4,075
Mo.
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Quote:
Quote:
Just curious if the Indy rocker arm shafts like they provide w/ their 440-1 kit hold up to 600#s OK, or if they're not beefy enough and end up oblonged / egg shaped after usage. These would be for use w/ plain-bearing style rockers, not needle-bearing fulcrums.
shafts seem ok, but this is what there rocker arms do with to much pressure....
...I broke a rocker a few weeks ago with the car idling in the garage can't remember the spring presure off hand but the cam is a solid roller with 693/706 with 274/277@50 and it broke a rocker almost like in the shape of a C
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Re: How do Indy's rocker shafts hold up to roller springs?
[Re: 440Jim]
#965919
06/16/11 02:14 PM
06/16/11 02:14 PM
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Joined: Jun 2009
Posts: 877 ky
68roadrunner
super stock
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super stock
Joined: Jun 2009
Posts: 877
ky
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Quote:
Quote:
I broke three 1.5 offset rocker on a 640 lift cam last year they were IND black arms i know four guys that have broke rockers
What spring pressures and how many passes when you started breaking them?
mine was good for a hundred passes with 300# on the seat and 690# open. and also one shaft was cracked when i took them off.
did not know they offered a thick wall version, thats what i get for not buying from bg.
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