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847 Posts
What holds the pulley in the slot in place? Just a friction hold by tightening a bolt? Got any pics of the back side?
JC customs pulley bridge 👌🏻
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3,169 Posts
I was curious about this also. I don’t have any other pics. I can try and find out.
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10,713 Posts
On the MP, it is like a bolt-on pulley boss. Fits the slot tightly from side-to-side, and is not totally round where it fits in the slot. Oval shaped, so there are flat spots on the sides where they fit in the slot. And big thick washer and nut on the back to retain it.
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14,645 Posts
That's one badazz piece! Makes me want to build a 2v again LOL. Maybe on the next project truck.
I don't mind the tool path on the bracket piece, but the pullies I'm not digging it. I prefer the CNC lathed look on other aftermarket pullies, vs. the stationary part/machined out look of these ones. Also not crazy how they look curved like OEM vs. more of a hard edge like aftermarket pullies. But this bridge with BPS pullies = yesssss!
As far as the comment about not wanting to go any higher on the bridge pulley, sure on an eaton where it's already pretty low, but look at a KB that sits pretty high up there, plus add in a midplate spacer, the added height on this will be a nice benefit for belt wrap.
I don't mind the tool path on the bracket piece, but the pullies I'm not digging it. I prefer the CNC lathed look on other aftermarket pullies, vs. the stationary part/machined out look of these ones. Also not crazy how they look curved like OEM vs. more of a hard edge like aftermarket pullies. But this bridge with BPS pullies = yesssss!
As far as the comment about not wanting to go any higher on the bridge pulley, sure on an eaton where it's already pretty low, but look at a KB that sits pretty high up there, plus add in a midplate spacer, the added height on this will be a nice benefit for belt wrap.
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1,426 Posts
9 times out of 10, replacing something stock is going to be better. Is this $1300 better? Doubtful.
Its like saying an $1100 cog setup is 'worth it.
I guess it just boils down to what someone wants to waste money on. $1300 buys a lot of 8 balls. 😂😂🤪
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943 Posts
Seems like a waste given the MP is under 300. Also good luck with the raw aluminum pulleys. I went through this over 10yrs ago. The belt starts wearing them and also turns the belt silver. They need to be hardcoat anodized. Same reason the old school billetflow color pulleys wore color off.
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10,713 Posts
All of my aluminum pulleys are hard anodized. The lower cog was improperly anodized when purchased from Mportetr in 2011. But I got wind of it pretty quickly and had them properly hard anodized. Haven't had a problem with it since. I replaced the upper pulley with a steel pulley from the Motoblue cog system. The black anodizing wore off in the belts track, but otherwise, no problems. My idlers are anodized in the belts path.
A) can you buy the mp anymore?
B) the mp tensioner at the top is on the wrong side
C) it's a lot prettier
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10,713 Posts
It's funny. The old add-on idler relocator, like the one that comes with the RPM Outlet Motoblue cogs, was always on the driver's side. MP said they made theirs with the idler on the passenger side, and that is the correct location. So, which is right?
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847 Posts
I remember reading that about the mp bracket also. Which side is the "right" side and why? Or does it even matter? I dont know why it wld matter. This is a nice part but as has been said it is kinda high imho. I know tooling and machining time costs, as i am a machinist. But i dont see how it wld be much better than a bolt on bracket like others already offer for like a 1/5 of the cost. Those others are on the "correct" side like this piece, and they also have a fixed location that wont slip or cld work there way loose in a slot. Idk. Just my .02
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847 Posts
Where did you get this knowledge? I wld like to read more on it. So if this is the case in point, then what was said about the MP bridge being the correct side was false.
Also as stated, yes it makes me happy to see new products for our older platform trucks, and this is a nice piece. The price still seems pretty steep and im not big on the tooling marks, but thats just me.
Also as mentioned the outside of those pullies do need hard anodize for longetivity.
It's basic physics
Google belt tension. There's a ton of reading material regarding tension types, belt types, calculating necessary tension and how to much wrap is counter productive.
Well I backed them up, then I drew it on paper and realized it was wrong.
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265 Posts
Nice piece... I'd personally spend the 950 or soon to be 1300 on something else.. can buy a lot of little parts for that price tag.
Guys were talking about batteries... I stay with the motomaster battery. Put it on a trickle charger in the winter. Only replaced 1 in 11 years.
Glad JC is still trying to come up with new parts for our platform even though this one isn't for me.
Guys were talking about batteries... I stay with the motomaster battery. Put it on a trickle charger in the winter. Only replaced 1 in 11 years.
Glad JC is still trying to come up with new parts for our platform even though this one isn't for me.
For some of us though, there isn't much left to buy. Lol
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