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Old 06-06-2013, 07:21 PM   #41
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Originally Posted by trikchop View Post
laguna that is what I was planning on doing with the overlay pulley. I figured to cut a ring of .25 aluminum then weld it to the s/c pulley and have it machined for two more ribs also.
I actually just had the original overlay lathed for 3 more ribs (7th rib extra for belt adjustment purposes).

But if you want more overdrive then ring it up. I'd just get a smaller nose. I'm spinning like 14k at redline with my tired psycho coffee grinding 45 lol...
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Old 06-06-2013, 09:21 PM   #42
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In other words, you're still slow?
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Old 06-07-2013, 09:37 AM   #43
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I meant add a ring to the 62.5mm s/c pulley to make it wider then machine it (6 rib).
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Old 06-07-2013, 12:25 PM   #44
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I see you are in Orlando. Eventually I would like to organize a Miatas at the dragstrip, just for kicks and giggles. There are some cars here in Florida that will lay it down.
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Old 06-07-2013, 02:57 PM   #45
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I meant add a ring to the 62.5mm s/c pulley to make it wider then machine it (6 rib).
Oh yea, well if you have junkyards hand, the buick riviera had several different diameter 6-rib nose polleys that are completely interchangeable with the jackson M45 and moss/brp M62. I forgot the measurements off the top of my head but it's actually a much nicer billet pulley than the steel JR stock on and the small one I use is the equivalent to a 10-11 psi setup on an M45 with overlay.
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Old 06-09-2013, 06:02 AM   #46
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Oh yea, well if you have junkyards hand, the buick riviera had several different diameter 6-rib nose polleys that are completely interchangeable with the jackson M45 and moss/brp M62. I forgot the measurements off the top of my head but it's actually a much nicer billet pulley than the steel JR stock on and the small one I use is the equivalent to a 10-11 psi setup on an M45 with overlay.
Good idea, thanks
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Old 07-08-2014, 04:16 PM   #47
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I did the six rib setup. if anyone is trying to do this there is a place called pulleyboys.com and they have the s/c pulleys for whatever charger you have
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Old 07-16-2014, 05:02 PM   #48
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Did your max psi change any? Your original psi looked a little lower than I've normally seen for your pulley ratio and was wondering if you had any belt slip. Unless you've added some flow mods somewhere?
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Old 07-20-2014, 03:43 PM   #49
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Did your max psi change any? Your original psi looked a little lower than I've normally seen for your pulley ratio and was wondering if you had any belt slip. Unless you've added some flow mods somewhere?
yes I was getting a LOT of belt slip. so i threw everything out and have just the s/c and crank pulley with an autotensioner in between them. it looks like its makin over 17 lbs now.
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Old 08-09-2014, 08:17 AM   #50
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say no to belt slip.
I'm thinking about doing this, as it seems relatively straightforward. Almost like the overlay pulley was designed for 6 ribs, and they just aren't machined. BUT, I still have power steering, and would like to keep it. Does someone make a 6 rib power steering pulley?
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