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Well today my factory water pump pulley failed. Just like many others at the weld. Ive been doing some research and found out that some guys are using the Edelbrock 8893 High Performance Water Pump. I am considering doing the same thing. However all of the parts stores say it is not applicable with the 2008 LS3 because of the clutch fan? Has anyone done this replacement with the Edelbrock 8893 High Performance Water Pump? If so, what did you have to do to make it work and what pulley did you use? Ive also seen were guys welded the factory pulley, and some changed a tensioner. I just want a solid mechanical water pump so i can just installed it and forget it. Ive looked and seen Holley has a water pump and the pulley has no welds on it, but I have not seen any reviews. And I seen a lot of guys used then Evans water pump but for for some reason I cant find that part number. Guys with experience, please dime in. Thanks
BTW the car is a 2008 LS3, ECS supercharger set up
Well today my factory water pump pulley failed. Just like many others at the weld. Ive been doing some research and found out that some guys are using the Edelbrock 8893 High Performance Water Pump. I am considering doing the same thing. However all of the parts stores say it is not applicable with the 2008 LS3 because of the clutch fan? Has anyone done this replacement with the Edelbrock 8893 High Performance Water Pump? If so, what did you have to do to make it work and what pulley did you use? Ive also seen were guys welded the factory pulley, and some changed a tensioner. I just want a solid mechanical water pump so i can just installed it and forget it. Ive looked and seen Holley has a water pump and the pulley has no welds on it, but I have not seen any reviews. And I seen a lot of guys used then Evans water pump but for for some reason I cant find that part number. Guys with experience, please dime in. Thanks
BTW the car is a 2008 LS3, ECS supercharger set up
I’m running the Edelbrock, albeit the 2009-up model which has the radiator hose outlet on the left side. It’s actually the same casting, with provision for the radiator outlet on either side, and Edelbrock simply drills and installs the outlet on the drivers side for the 2009-up motors and on the passenger side for 2008-down motors. You would need the earlier-model style, unless you want to change your upper radiator hose and switch your outlet over to the other side of the pulley.
Please note that the pulley in the photo is NOT the correct pulley, but is in fact the pulley for the Victor series model, and I had to machine 9/16” of the back side of it to get it to work. You will need the #8899 pulley. https://www.edelbrock.com/billet-pul...8894-8899.html
Between the Edelbrock pumps price and buying the pulley separately, its not a cheap solution, and it doesn’t seem to cool any better than the stocker (although I’ve never had a cooling problem) but you won’t have to worry about breaking the pulley again.
I’m running the Edelbrock, albeit the 2009-up model which has the radiator hose outlet on the left side. It’s actually the same casting, with provision for the radiator outlet on either side, and Edelbrock simply drills and installs the outlet on the drivers side for the 2009-up motors and on the passenger side for 2008-down motors. You would need the earlier-model style, unless you want to change your upper radiator hose and switch your outlet over to the other side of the pulley.
Please note that the pulley in the photo is NOT the correct pulley, but is in fact the pulley for the Victor series model, and I had to machine 9/16” of the back side of it to get it to work. You will need the #8899 pulley. https://www.edelbrock.com/billet-pul...8894-8899.html
Between the Edelbrock pumps price and buying the pulley separately, its not a cheap solution, and it doesn’t seem to cool any better than the stocker (although I’ve never had a cooling problem) but you won’t have to worry about breaking the pulley again.
Thanks for the reply. Like you said with the set up you have, I wont have to worry about any pulley failures again.
I would just run a factory replacement and tack weld the pulley. Seems to be the cheapest, simplest option.
I thought about tack welding but I seen a post awhile stating that the weld broke again with a couple of people. So I am trying to stay away from that option if possible.
All of the pulley failures I’ve seen on here broke at the factory weld, so I can’t see how welding the hub to the shaft helps...
As far as the PRW pump is concerned, my only worry with that would be the boss on top of the pump body which is cast to allow for the outlet for the truck applications (circled in yellow in the pic below). That may very well get in the way of something like the supercharger bracketry, but I can’t say for sure. Something to bear in mind though.
Perhaps the cheapest, best route would be to go with the factory pump and install the IW 10-rib W/P pulley: https://innovatorswest.com/920-Water-Pump-Pulley.html
As expensive as the IW pulley is, it’s still cheaper to go with that and a GM replacement pump from Rockauto, than to buy the Edelbrock pump and then buy their $135 pulley separately.
I guess the cheaper $133.79 pump would be a good replacement ?
Yes, it would. But only if your existing one is worn out, and the stock water pumps seem to last forever. The only problem I see being reported with them is the pulley failure, from using HD aftermarket tensioners. Those pulleys just weren’t designed for that kind of stress. This is the biggest challenge with running a supercharger in the C6: the need to use the main belt to drive the blower along with all of the other accessories, so you need more tension on the belt if you’re trying to make upwards of ~9-10psi of boost. That’s the reason the ZR1 has a completely different drive system with an 11-rib belt from the factory.
So, @ $250, the IW 10-rib water pump pulley is expensive, but it’s a good (and the cheapest) way to upgrade a factory pump to avoid pulley failure.
Thanks for the info Sammy ... I can always rely on you
Since I use the stock 6 rib belt (one size smaller than the supplied belt), the standard tensioners, and only a 90mm drive pulley on my Heartbeat ... maybe my OEM water pump pulley will not separate (fingers crossed)
Looking at that $250 'Innovators West' 10-rib water pump pulley:
1. Since this 'Innovators West' is a 10-rib pulley, could the standard 'Heartbeat' supplied 6-rib belt be used with it ?
2. How the hell do you remove the welded-on pulley on the ACDelco water pump in order to install the bolt-on 'Innovators West' pulley ? (I can find any instructions on the internet)
Looking at that $250 'Innovators West' 10-rib water pump pulley:
1. Since this 'Innovators West' is a 10-rib pulley, could the standard 'Heartbeat' supplied 6-rib belt be used with it ?
2. How the hell do you remove the welded-on pulley on the ACDelco water pump in order to install the bolt-on 'Innovators West' pulley ? (I can find any instructions on the internet)
Looking at that $250 'Innovators West' 10-rib water pump pulley:
1. Since this 'Innovators West' is a 10-rib pulley, could the standard 'Heartbeat' supplied 6-rib belt be used with it ?
2. How the hell do you remove the welded-on pulley on the ACDelco water pump in order to install the bolt-on 'Innovators West' pulley ? (I can find any instructions on the internet)
And here’s a screenshot of the relevant page (I know, it’s not particularly detailed):
NOTE: the stock WP is not welded on. It’s just pressed on with an interference fit. That’s why some folks weld it on.
Since the Innovators West water pump pulley gets pressed onto the shaft of the OEM / ACDelco water pump, I can't see what those 6 bolts on the Innovators West pulley could be used for ... No bolt threads in the pump body for bolts to be screwed into. (I guess the bolts are not used)
Since the Innovators West water pump pulley gets pressed onto the shaft of the OEM / ACDelco water pump, I can't see what those 6 bolts on the Innovators West pulley could be used for ... No bolt threads in the pump body for bolts to be screwed into. (I guess the bolts are not used)
The pulley is a two piece design. Those 6 bolts are what holds the outer IW aluminum pulley to the IW Steel mandrel/hub, just like on their power steering pulleys. They use a steel mandrel to press on to the steel WP shaft (since you couldn’t use an interference fit between aluminum to steel) and the bolts hold the pulley onto the mandrel/hub.
If you don't have a press, I guess it would pretty much impossible to install this pulley on the water pump shaft ?
I have never tried doing this to a water pump before. I am curious about ^^^^^^what you asked also. I am sure someone has tried it. But I know for sure the press is the proper way to do it.
Water Pump failure
