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BB Distributor Drive Gears
#2433861
01/13/18 01:04 PM
01/13/18 01:04 PM
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Joined: Jan 2003
Posts: 10,704 North Dakota
6PakBee
OP
I Live Here
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OP
I Live Here
Joined: Jan 2003
Posts: 10,704
North Dakota
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I've been looking at the Hughes "OIL PUMP DRIVE SHAFT W/COATED STEEL GEAR". I really want to run a street hydraulic roller in a 383 but the choice of gear is concerning me. I've done some searches and the choices seem to be brass or coated steel (Melonized). I see Comp offers a composite gear but not for a BB. The comments I've read about the bronze gear seem to be like going to Vegas, you never know how it is going to end until after it's ended. Can't find much on the coated gear. What are your recent experiences with drive gears for street roller camshafts?
"We live in a time when intelligent people are being silenced so that stupid people won't be offended".
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Re: BB Distributor Drive Gears
[Re: 6PakBee]
#2433881
01/13/18 01:54 PM
01/13/18 01:54 PM
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Joined: Mar 2007
Posts: 3,277 West Coast, USA
jbc426
master
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master
Joined: Mar 2007
Posts: 3,277
West Coast, USA
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I'm going to run the Hughes coated steel gear with my new roller cam. I've found running a well-adjusted collar on the distributor shaft really helped with reducing the wear on my previous bronze gears.
1970 Plymouth 'Cuda #'s 440-6(block in storage)currently 493" 6 pack, Shaker, 5 speed Passon, 4.10's 1968 Plymouth Barracuda Convertible 408 Magnum EFI with 4 speed automatic overdrive, 3800 stall lock-up converter and 4.30's (closest thing to an automatic 5 speed going)
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Re: BB Distributor Drive Gears
[Re: second 70]
#2433906
01/13/18 02:39 PM
01/13/18 02:39 PM
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Joined: Jan 2003
Posts: 15,439 Val-haul-ass... eventually
BradH
Taking time off to work on my car
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Taking time off to work on my car
Joined: Jan 2003
Posts: 15,439
Val-haul-ass... eventually
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I replaced the bronze gear on my solid roller in my hemi with the Hughs gear and when I pulled it after a year of use to inspect it it and the cam looked new. Crane says not to run their gear on a used cam, FWIW.
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Re: BB Distributor Drive Gears
[Re: second 70]
#2433931
01/13/18 03:21 PM
01/13/18 03:21 PM
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Joined: Dec 2013
Posts: 4,669 Wichita
GY3
master
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master
Joined: Dec 2013
Posts: 4,669
Wichita
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Crane 66970-1 on my Howards hydraulic roller. 2 years and 4,500 miles of street/strip use. I pulled it apart last fall and both the cam gear and distributor gear look new.
They do recommend using only with a standard volume and pressure pump. Not an issue for me.
'63 Dodge 330 11.19 @ 121 mph Pump gas, n/a, through the mufflers on street tires with 3.54's. 3,600 lbs. 10.01 @ 133mph with a 250 shot of nitrous an a splash of race gas. 1.36 60 ft. 3,700 lbs.
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Re: BB Distributor Drive Gears
[Re: GY3]
#2434383
01/14/18 01:23 PM
01/14/18 01:23 PM
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Joined: Jan 2003
Posts: 10,704 North Dakota
6PakBee
OP
I Live Here
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OP
I Live Here
Joined: Jan 2003
Posts: 10,704
North Dakota
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Thanks to all who responded. Sounds like the coated steel gear is the way to go. I have done some more searching since my post and find that in addition to the standard oil pump, use of synthetic oil is beneficial also.
"We live in a time when intelligent people are being silenced so that stupid people won't be offended".
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Re: BB Distributor Drive Gears
[Re: 6PakBee]
#2434407
01/14/18 02:05 PM
01/14/18 02:05 PM
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Joined: Jan 2003
Posts: 4,270 Morrow, OH
markz528
master
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master
Joined: Jan 2003
Posts: 4,270
Morrow, OH
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I have a Lunati hydraulic roller (BTW - unless you keep the rpms really low I don't recommend it). They told me to send the mopar performance gear assembly to comp cams to get nitrided and never look back. That's what I did but don't have enough miles on it to comment how effective it is.
67 Coronet 500 9.610 @ 139.20 mph 67 Coronet 500 (street car) 14.82 @ 94 mph 69 GTX (clone) - build in progress......
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