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#1
04-21-2013, 03:47 AM
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Opinion on what dist gear to use
IA2 with a billet roller cam.
MSD Distributor.....now Composite or brass?
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24 beer in a case. 24 Hours in a day. Coincidence? I think not. " Steve Wright" |
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#2
04-21-2013, 08:22 AM
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been using the BOP composites for years with no issues
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Carburetor building & modification services Servicing the Pontiac community over 25 years |
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#3
04-21-2013, 08:43 AM
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I smoothed out the sharp edges on the cam gear with the dremel. No problems or signs of wear after a year with BOP gear.
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#4
04-21-2013, 09:50 AM
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I've always used bronze in my race car and street toy. I've installed a couple composites for other guys. Haven't had any problem with either. I think correct endplay on cam and distributor are key to longevity. Most will tell you that you need the galley plug with an oil suirter hole in it. There's certainly nothing wrong with that but my personal engines have never had that. The gear will still get oil.
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http://www.youtube.com/watch?v=t9eWgLd0q-U |
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#5
04-21-2013, 09:56 AM
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Quote:
X2 Tom Syron |
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#6
04-21-2013, 10:36 AM
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BOP - one time and done! I just replaced mine after 10 years or so just out of principle, but kept the old one as a spare. Prior to that, I had gone thru several bronze gears. I could always tell when the were wearing 'cause the timing would change. - Bill-
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GT37 3625lbs..Fastest bench seat, column shift, all steel,no power adders car at Norwalk 1.35 w/29.5x10.5x15 6.42 @ 109 10.09 @ 133 |
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#7
04-21-2013, 11:52 AM
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Two step...
Hey John,
I have had good luck with using a sacrificial MSD bronze gear first, and then installing the BOP gear. In one motor there was only slight wear on the bronze gear, but the other motor's gear teeth were pretty thin after running it for 300-500 street miles.
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Les Iden ---------------------------- '65 Buick Sport Wagon Custom, 340, T350, 3:23 '66 GTO Post/468, 700R4, 3.31 (Mike's as of 9-16) '68 Grand Prix/455, dual AFBs, T400, 2:93 posi (sold) '72 TA tribute/461, T400, 3.08, (Russ's as of 9-16) '97 Mitsubishi Eclipse Spyder Turbo, Konis, 5 speed '09 Torrent GXP, nav, Sun & Sound pkg., Bilsteins |
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#8
04-21-2013, 12:43 PM
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John,
I am using the BOP gear and have 10 000 or more mile on it and it still looks new. What were you using before? |
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#9
04-21-2013, 10:50 PM
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Thanks for chiming in all. Howdy Les, Hope you are doing well....
I have been using the BOP gear for years...mainly in Hyd Roller combos, but also had it in the IA2 since 2007....Last fall, I spun a cam bearing and subsequently have freshened up the combo. I was running a billet roller and have a new one from comp in the motorto ....When I pulled the dist and looked at the gear and it had tons of wear. I am having the distributor checked for alignment and end play....also cleaning up the cam gear. I have another MSD to use if this one is pooched. I was only wondering what was the best gear to use. With all the answers listed above I will use the BOP gear again, but will keep an eye on it Thanks all
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24 beer in a case. 24 Hours in a day. Coincidence? I think not. " Steve Wright" |
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#10
04-21-2013, 11:15 PM
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Vote for composite.
Jim
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65 Catalina sedan. Allen Thomas Performance 495. KRE Heads at 310cfm ported by SD Performance, ProSystems Dominator carb on ported Victor intake, P-Dude custom grind hydraulic roller, MSD ignition, 3.50 Moser/Ford rear. F-Glass front bumper by son Rob, rear by the old man and joint effort for trunk lid. 3950# w/driver. Best of 9.5761/139 on 175 shot, 6.01 /114 in 1/8. |
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#11
04-22-2013, 07:42 AM
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The BOP composite gear will work fine, unless you get a camshaft with a "rough" finish on the drive gear. To date we've had a 100 percent success rate for the BOP gears, even in long term service, except for two incidents, where the camshaft ate them up in about the time it took me to type this.
We started spending some time cleaning up the drive gear on these roller camshafts, followed by a trip the bead blaster to hit them gently with ultra-fine glass beads. Then, we install a bronze gear for the first couple of hundred miles, then install the BOP gear. Since doing this you can pull them out years and many thousand miles later, and they will always look just like the day you installed them.......Cliff
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If you can read this, thank a teacher. If you can read this in English, thank a Veteran! https://cliffshighperformance.com/ 73 Ventura, SOLD 455, 3740lbs, 11.30's at 120mph, 1977 Pontiac Q-jet, HO intake, HEI, 10" converter, 3.42 gears, DOT's, 7.20's at 96mph and still WAY under the roll bar rule. Best ET to date 7.18 at 97MPH (1/8th mile), |
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