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Re: Affordable harmonic damper for a 550hp 440 shifts 6500?
[Re: Rapid340]
#2108592
07/12/16 11:13 AM
07/12/16 11:13 AM
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Joined: Jan 2003
Posts: 74,978
U.S.S.A.
JohnRR
I Win
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I Win
Joined: Jan 2003
Posts: 74,978
U.S.S.A.
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I have found in general, rubber that is formulated or designed by Chinese companies is terrible. A very large reputable US manufacturer (like OEM or Dorman) will be good about making sure the correct rubber technology is in place even if made in china and I have had good experience using these. You hit the nail on the head about rubber. off topic ... I replaced tie rod ends on my pickup in the fall , one was the lowest grade Napa part , the other a Duralast from Vatozone. The Napa boot split after a couple of months and yesterday I see the Duralast boot is all dry rotted ...
running up my post count some more .
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Re: Affordable harmonic damper for a 550hp 440 shifts 6500?
[Re: JohnRR]
#2108627
07/12/16 12:05 PM
07/12/16 12:05 PM
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Joined: Sep 2003
Posts: 19,366
north of coder
moparx
"Butt Crack Bob"
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"Butt Crack Bob"
Joined: Sep 2003
Posts: 19,366
north of coder
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I have found in general, rubber that is formulated or designed by Chinese companies is terrible. A very large reputable US manufacturer (like OEM or Dorman) will be good about making sure the correct rubber technology is in place even if made in china and I have had good experience using these. You hit the nail on the head about rubber. off topic ... I replaced tie rod ends on my pickup in the fall , one was the lowest grade Napa part , the other a Duralast from Vatozone. The Napa boot split after a couple of months and yesterday I see the Duralast boot is all dry rotted ... and what does a guy do for replacements ? almost all rubber components related to mechanical components are off shore junk. engine, transmission, suspension related "brand" names. check under the hood of your 90 up vehicle often for deteriorated rubber components. you may be [unpleasantly] surprised at the condition of hoses, boots, connections, etc. 
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Re: Affordable harmonic damper for a 550hp 440 shifts 6500?
[Re: Adam71Charger]
#2108781
07/12/16 03:42 PM
07/12/16 03:42 PM
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Joined: Jan 2003
Posts: 74,978
U.S.S.A.
JohnRR
I Win
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I Win
Joined: Jan 2003
Posts: 74,978
U.S.S.A.
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Just got of the phone with pro race products. I asked about which 440 dampers were made in China and which in Australia. He asked for a part number, I gave it, then he said "I'm sorry, that's information we don't share."
Maybe Mancini will pop open a box and tell me what's printed on one Buy the SFI one , if it comes in with made in China ... send it back.
running up my post count some more .
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Re: Affordable harmonic damper for a 550hp 440 shifts 6500?
[Re: Adam71Charger]
#2108791
07/12/16 03:57 PM
07/12/16 03:57 PM
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Joined: Jul 2011
Posts: 956
Chicago
PurpleBeeper
super stock
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super stock
Joined: Jul 2011
Posts: 956
Chicago
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Sudden jolts to the belts are what tears up the rubber in harmonic balancers....so high rpm 4spd shifts, nitrous hits, even turning the A/C on & off, will all wear out the rubber. I got a Summit SFI balancer on my Mustang and after about 3 yrs. the battery wouldn't stay charged & I couldn't figure out the problem (neither could 3 other mechanics & 1 Mopar dealership mechanic)....turns out the balancer rubber went bad and the outer part of the balancer was still spinning (where the pulley is on a Mustang) but just not as fast as the center part of the balancer. I was surprised it didn't squeal like a pig.
Last edited by PurpleBeeper; 07/12/16 03:59 PM.
70 Roadrunner convt. street car
440+6, NOS, 4-spd, SS springs
'96 Mustang GT convt. street car
'04 4.6 SOHC, NOS, auto, lowered
"Officer, that button is for short on-ramps"
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Re: Affordable harmonic damper for a 550hp 440 shifts 6500?
[Re: Adam71Charger]
#2108800
07/12/16 04:15 PM
07/12/16 04:15 PM
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Joined: Jan 2003
Posts: 14,493
So. Burlington, Vt.
fast68plymouth
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 14,493
So. Burlington, Vt.
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Just got of the phone with pro race products. I asked about which 440 dampers were made in China and which in Australia. He asked for a part number, I gave it, then he said "I'm sorry, that's information we don't share."
Maybe Mancini will pop open a box and tell me what's printed on one That would have made my decision a lot easier. My guess is, it it had been Oz made, he would have said so.
68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123
Dealer for Comp Cams/Indy Heads
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Re: Affordable harmonic damper for a 550hp 440 shifts 6500?
[Re: PurpleBeeper]
#2108830
07/12/16 04:53 PM
07/12/16 04:53 PM
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Joined: Jan 2003
Posts: 74,978
U.S.S.A.
JohnRR
I Win
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I Win
Joined: Jan 2003
Posts: 74,978
U.S.S.A.
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Sudden jolts to the belts are what tears up the rubber in harmonic balancers....so high rpm 4spd shifts, nitrous hits, even turning the A/C on & off, will all wear out the rubber. I got a Summit SFI balancer on my Mustang and after about 3 yrs. the battery wouldn't stay charged & I couldn't figure out the problem (neither could 3 other mechanics & 1 Mopar dealership mechanic)....turns out the balancer rubber went bad and the outer part of the balancer was still spinning (where the pulley is on a Mustang) but just not as fast as the center part of the balancer. I was surprised it didn't squeal like a pig. That doesn't make a difference then because the balancer he wants doesn't have the belts riding on the dampening part ...
running up my post count some more .
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Re: Affordable harmonic damper for a 550hp 440 shifts 6500?
[Re: fast68plymouth]
#2108835
07/12/16 05:02 PM
07/12/16 05:02 PM
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Joined: Jun 2013
Posts: 1,521
Tacoma, Washington USA
Adam71Charger
OP
pro stock
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OP
pro stock
Joined: Jun 2013
Posts: 1,521
Tacoma, Washington USA
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Just got of the phone with pro race products. I asked about which 440 dampers were made in China and which in Australia. He asked for a part number, I gave it, then he said "I'm sorry, that's information we don't share."
Maybe Mancini will pop open a box and tell me what's printed on one That would have made my decision a lot easier. My guess is, it it had been Oz made, he would have said so. Thats exactly what I was thinking, and kinda weirded me out because Ive never been denied that sort of information from someone who knew the answer. I did call mancini, they're checking the box for me and calling me back. At this point, if its still made in OZ I'll probably buy it from mancini because they're doing some leg work for me, but if not Im going with the powerbond
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Re: Affordable harmonic damper for a 550hp 440 shifts 6500?
[Re: Adam71Charger]
#2116229
07/23/16 05:39 PM
07/23/16 05:39 PM
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Joined: Jan 2003
Posts: 14,493
So. Burlington, Vt.
fast68plymouth
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 14,493
So. Burlington, Vt.
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If that's an Oz made sfi damper for $166, that's a really good deal.
68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123
Dealer for Comp Cams/Indy Heads
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Re: Affordable harmonic damper for a 550hp 440 shifts 6500?
[Re: Adam71Charger]
#2120804
07/29/16 06:23 PM
07/29/16 06:23 PM
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Joined: Jan 2003
Posts: 14,493
So. Burlington, Vt.
fast68plymouth
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 14,493
So. Burlington, Vt.
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Does it say where it's made somewhere?
68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123
Dealer for Comp Cams/Indy Heads
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