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Distributor Gear
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http://www.clubcobra.com/forums/small-block-talk/142722-distributor-gear.html)
| Johnnybgoode |
08-30-2019 02:23 PM |
Distributor Gear
I have been reading steel with steel and iron with iron but what gear do you run with Austempered Ductile Iron Comp HR Cam? I think steel but would like to confirm. Thx. Scott
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| Gaz64 |
08-30-2019 05:36 PM |
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| blykins |
09-09-2019 11:42 AM |
Quote:
Originally Posted by Johnnybgoode
(Post 1466184)
I have been reading steel with steel and iron with iron but what gear do you run with Austempered Ductile Iron Comp HR Cam? I think steel but would like to confirm. Thx. Scott
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Iron! |
| hauss |
09-11-2019 08:02 AM |
Watch out Johnnybgood! This is one question you do not ask on this forum.They are going to tar and feather you and when they are done they will throw you in a pot of boiling water.
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| blykins |
09-11-2019 08:12 AM |
Quote:
Originally Posted by hauss
(Post 1466607)
Watch out Johnnybgood! This is one question you do not ask on this forum.They are going to tar and feather you and when they are done they will throw you in a pot of boiling water.
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As it should be when people are too stubborn for their own good. |
| Johnnybgoode |
09-11-2019 01:58 PM |
Quote:
Originally Posted by blykins
(Post 1466531)
Iron!
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Thanks Brent appreciate your advice. I called Comp earlier and they said steel but the guy did not sound that sure. I called back today and the fellow I spoke to said iron as you have and when I read the description of the dist. gear on the current Crane Pro Billet I've been running it sounds like it is iron as well. It's very confusing so I appreciate your help.
The Crane dist. module is bad and they no longer supply parts so hence the reason I'm looking for a new dist. Do you have any recommendations? I was looking at Pertronix but they only seem to come with steel gears. I have also found an MSD #8578 which looks like it should work with my cam and Crane Hi6 ignition/coil. Motor is a 74 351W block with a 408 kit in it, 10-1. Performer RPM heads and intake (nicely ported). Cam is Comp XR282RF-HR10 Part # 35-425-8.
Any other suggestions/comments are welcome. Thanks for the help. Scott |
| blykins |
09-11-2019 02:13 PM |
I'm an MSD guy myself....
That 8578 should work great. Easily recurvable too, and I'd suggest that you do it. The curves are lazy out of the box.
Club Cobra is hit or miss for me to login to with the constant forum issues, so if you need something, email me. brent@lykinsmotorsports.com |
| Johnnybgoode |
09-11-2019 04:27 PM |
Quote:
Originally Posted by blykins
(Post 1466621)
I'm an MSD guy myself....
That 8578 should work great. Easily recurvable too, and I'd suggest that you do it. The curves are lazy out of the box.
Club Cobra is hit or miss for me to login to with the constant forum issues, so if you need something, email me. brent@lykinsmotorsports.com
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Hi Brent. Thank you very much. Think I will go with the MSD. I will contact you directly for further questions.
Thx. Scott |
| hauss |
09-11-2019 06:16 PM |
See what I mean.
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| blykins |
09-12-2019 05:01 AM |
Quote:
Originally Posted by hauss
(Post 1466628)
See what I mean.
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No, I don't see what you mean.
We have knowledgeable guys on here who care about sharing the correct information. Obviously you can't count on manufacturers to provide it.
I'm sorry your bronze distributor is wearing. I'm also sorry that you were stubborn enough to not acknowledge it (after posting pictures showing a horribly worn gear and saying "It looks fine!") and then ignore all the correct information that was given to you. |
| hauss |
09-12-2019 08:21 AM |
Dude lay off the coffee I think it is starting to get to you just a little.
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| spdbrake |
09-22-2019 08:49 AM |
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| blykins |
09-23-2019 06:12 AM |
Quote:
Originally Posted by spdbrake
(Post 1466902)
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They don't last like a steel gear.
Steel cam = steel gear.
Iron cam = iron gear. |
| cycleguy55 |
09-23-2019 01:01 PM |
Quote:
Originally Posted by spdbrake
(Post 1466902)
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From the Comp Cams PDF: "As opposed to bronze gears, melonized versions are less wear-prone and feature better timing accuracy and higher strength than any other universally compatible distributor gear option. The greater wear resistance and higher precision of COMP CamsŪ Melonized Gears also provide less spark scatter (more accurate timing) than is possible with a bronze gear."
You'll note they're comparing their Melonized gears to to universal and bronze gear options - not to iron and steel options. If Comp Cams believed Melonized gears were better than iron on iron and steel on steel, don't you think they'd make that clear? I believe they know full well Melonized is NOT better than properly matching iron gears to iron camshafts, and steel gears to steel camshafts.
Accept or reject expert opinion from engine builders like Brent but, as always, "your mileage may vary" (literally and figuratively).
You can read more about Melonizing here: https://en.wikipedia.org/wiki/Ferritic_nitrocarburizing |
| spdbrake |
09-23-2019 02:47 PM |
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| daverascal |
12-08-2019 04:36 PM |
just me
I run a mechanical roller in a 408w. Bronze gear didn;t last any time. Switch to a comp cams composite gear. Have over 3 years and no problems. Just my 2 cents
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