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Thread: Lightweight Pulleys Reply to Thread
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  Topic Review (Newest First)
01-16-2020 06:36 PM
Gator1
Quote:
Originally Posted by 56Cummins View Post
If the 6.25 pulley was spinning 2000rpm, the 5.25 is going 2381. I would wager the weight loss will go unnoticed from the extra work being done. But if you need the speed it's a win win.
yea, I needed a 6 rib with a shoulder since I shaved two ribs off mine to make it a six rib, I lost the shoulder on one side. Maybe it will boost the steering and brakes as well?
01-16-2020 06:34 PM
Gator1
Quote:
Originally Posted by steve05ram360 View Post
Wow thats getting light... but thats a 6 groove pulley right?
Yes, 6 rib. So far I haven't found an 8 rib 5in pulley.
01-15-2020 04:45 PM
56Cummins If the 6.25 pulley was spinning 2000rpm, the 5.25 is going 2381. I would wager the weight loss will go unnoticed from the extra work being done. But if you need the speed it's a win win.
01-15-2020 03:48 PM
steve05ram360
Quote:
Originally Posted by Gator1 View Post
Update, the new lightweight pulley champ is...OEM pulley 1lb 13oz new composite overdrive pulley 8.4oz.
Wow thats getting light... but thats a 6 groove pulley right?
01-15-2020 02:55 PM
Gator1 Update, the new lightweight pulley champ is...OEM pulley 1lb 13oz new composite overdrive pulley 8.4oz.
01-08-2020 03:38 PM
Gator1 Update on pulley selection, first off, the truck has not moved since last post, so no new mpg #'s. Since I'm only running a 6 rib belt I decided to do some more experimenting and found a smaller 5 1/4" in overdrive pulley VS. 6 1/4" dia 6 rib pulley, and it only weighs 8 oz, Ssshhhzzzaaaaaam! Also, there is no worry at all about slipping since the HellCat uses a 6 rib I don't think spending most of the time below 2000 rpms with no fan clutch, or water pump is going to tax the belt and cause it to slip.
12-02-2019 10:58 PM
Gator1
Quote:
Originally Posted by steve05ram360 View Post
what did your do over mpg run give?
Didn't do it yet.
11-30-2019 02:07 PM
steve05ram360
Quote:
Originally Posted by Gator1 View Post
Ya, I can do that, I have a 50 gal tank in the bed with a vent and roll over valve on a riser so it's always above fuel level, and the neck is 3-4 inches above level also. So as long as I get fuel into the neck it would be really accurate.

Good luck on your run today.
what did your do over mpg run give?
11-28-2019 10:23 AM
Gator1 Ya, I can do that, I have a 50 gal tank in the bed with a vent and roll over valve on a riser so it's always above fuel level, and the neck is 3-4 inches above level also. So as long as I get fuel into the neck it would be really accurate.

Good luck on your run today.
11-28-2019 10:13 AM
steve05ram360
Quote:
Originally Posted by Gator1 View Post
True, that's the way I will do it next time I do a strictly mpg run.
i have a vent kit on my tank so every fillup is up to the neck. after the first auto shutoff, i hit the pump again until the next one then done. i always can see the fuel in the neck...

200 mile run this morning on that same route that gave the 25, ambient temps are 28-35* should be interesting. i would expect low 20's pre-pulley & EWP...

will fill up afterwards, noonish...
11-28-2019 09:41 AM
Gator1 True, that's the way I will do it next time I do a strictly mpg run.
11-27-2019 08:06 PM
steve05ram360
Quote:
Originally Posted by Gator1 View Post
That filler neck method is bad, I got 13 mpg today100 mile trip running in some hills and VERY windy conditions. I will try the filler neck method again on a flat road where I got 33.
Its the only way to do it without having a 5 gallon container (or some known quantity) and running it dry.
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