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Old 10-07-2018, 09:22 PM   #1
2turbotoys
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Default Best LS swap forums? Or what electric waterpump fits?

I'm looking for a good forum for some answers for my L33 engine swap, mainly to determine which electric water pump fits my engine. The L33 is a truck engine with a huge accessory bracket. I am removing all that junk and just running the alternator off the crank pulley, alternator is relocated to the bottom drivers side on a simple bracket.

Do Ls motors all have the same water pump mounting location? That's the real question I guess.
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Old 10-08-2018, 12:41 AM   #2
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You're crazy to ditch the stock water pump if its a streetcar but yes, they all share the same mounting. Going to a lower profile corvette water pump pump and an aftermarket alternator mount will clean things up and free up some room.
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Old 10-08-2018, 01:17 PM   #3
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The 2010 Camaro waterpump is lower profile and looks better. But yea, I wouldn't use a electric waterpump on a street car. Sounds like one more thing to fail
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Old 10-08-2018, 02:41 PM   #4
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And not fail as in drip drip drip that's gonna cause a problem sooner o later. Fail as in it almost immediately overheats.

The 2010 Camaro WP looks a lot like the Corvette stuff I got. A flat pulley, instead of the longer bell-shaped pulley.
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Old 10-08-2018, 02:59 PM   #5
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I have a super old ls1 water pump with the massive pully and the spacers for the truck accessories. It works well but it's very close to the cooling fan
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Old 10-08-2018, 07:10 PM   #6
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Looking through LS forums, it seems they cause problems for people who don't look at their gauges, or undersize their wiring, relay or fuses. I am not using power steering or ac, and I dont want 10 idlers on the front of the motor, which is what you get with aftermarket alternator mounts I'll try to find that Corvette setup, see what it looks like.
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Old 10-08-2018, 07:43 PM   #7
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Quote:
Originally Posted by cosbySweater View Post
I have a super old ls1 water pump with the massive pully and the spacers for the truck accessories. It works well but it's very close to the cooling fan
I have a 5.7L camaro water pump and 3/4" specers. Works great. I'll be going to a 2010 corvette water pump since the pulley sheds almost and 1"+ in unneeded pulley and leaves the snout on the same side.
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Old 10-08-2018, 09:03 PM   #8
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I still don't see a good reason not to use the electric pump, if correctly installed and you aren't doing extended high rpm runs there doesn't seem to be a downside. Sudden death? That true of any new plastic impeller belt driven water pump on modern vehicles such as Volvo or Volkswagon. I've seen 3 so far in various cars. BMW thinks electric water pumps are a good idea...not trying to be argumentative, just want to think this through. I really really want to loose all the stupid belts and pulleys, like this:
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Old 10-08-2018, 10:15 PM   #9
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why no PS or AC?
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Old 10-08-2018, 10:16 PM   #10
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Quote:
Originally Posted by 2turbotoys View Post
I really really want to loose all the stupid belts and pulleys, like
Why? I haven't heard of anyone loosing a belt or having issues with using what production stick with the car.
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Old 10-09-2018, 01:38 AM   #11
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http://www.ictbillet.com/ls-corvette...1-ls2-ls3.html I run this setup on an rx7 I built, about as simple as you can get. I just see an electric pump as a fix for a problem that doesn't exist. If you have a legitimate reason to run one like being able to cool the motor down in the staging lanes without running the engine I can agree with that. Going to need a controller for the electric pump or a remote mount thermostat if you just want to run it full time.
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Old 10-09-2018, 07:28 AM   #12
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No power steering or AC..the car never had it and I'm not adding it...the car is a '79 DL with manual everything, no options

The truck accessory bracket is enormous, and I would have to replace all power steering and ac with idlers, it looks ridiculous and is expensive.

55superbeetle, that is the bracket I'm getting, they are showing it with optional parts. That would work for me as far as cleaning up the front of the engine, though it looks like I would need a Corvette crank pulley and water pump
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Old 10-09-2018, 02:43 PM   #13
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Quote:
Originally Posted by 2turbotoys View Post
BMW thinks electric water pumps are a good idea...not trying to be argumentative, just want to think this through.

LOL

I work in the parts business, these things go out all the time and make me a lot of money daily. Stick to a traditional set up if it's a street car. Only upside to an electric is being able to run it in between runs in a drag set up without running the motor to cool things down faster.
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Old 10-09-2018, 02:49 PM   #14
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Isn't there some belt you could use that would work without any idlers? Just go between the crank, WP, and alternator. You'd have to find one that is 'reverse' spin, and has a ribbed pulley on it, but they probably make them.
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Old 10-09-2018, 04:33 PM   #15
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meh. I used the ict brackets with truck spacing and an ls3? pump I think.. anyway, no issues. Don't over think it, this is how people end up spending 10k to make 400hp and get mad at the suggestion that a budget build can make bigger power.
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Old 10-09-2018, 04:39 PM   #16
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Stock stuff is easy to find about anywhere. If you're on a road trip in the middle of nowhere and your engine tosses a belt, how hard do you want to make it to get a new one? Stock stuff is going to be at the closest parts store, on the shelf.
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Old 10-09-2018, 06:25 PM   #17
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Ya, trying not to overthink it. I just want to reduce the size of everything, and the truck bracket is enormous. I still need room for turbos up front and because my buddy hasn't had time to share his lift yet the engine is just sitting in my warehouse at work...have no idea how much space there will be.

I like the link 55superbeetle sent, just not sure what water pump that is, but I can talk to ICT and they can tell me what I need to make that happen.

Good point John
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Old 10-09-2018, 07:52 PM   #18
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Quote:
Originally Posted by linuxman51 View Post
meh. I used the ict brackets with truck spacing and an ls3? pump I think.. anyway, no issues. Don't over think it, this is how people end up spending 10k to make 400hp and get mad at the suggestion that a budget build can make bigger power.
Cause getting a 2010 corvette water pump on rock auto for Less then $100 and a $25 dollar set of a 3/4" spacers is so hard and looses 1-.25 inch on the pulley and gain space. Win win
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Old 10-09-2018, 07:56 PM   #19
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It's just money.

https://www.amazon.com/Davies-Craig-.../dp/B01LBQZFC4

https://www.summitracing.com/parts/dcw-dc-8060

https://www.summitracing.com/parts/dcw-dc-8001
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Old 10-09-2018, 09:30 PM   #20
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https://www.summitracing.com/parts/i...RoCWx4QAvD_BwE

Did this on my Fairmont. Alternator only on a truck water pump. About as cheap and easy as it gets
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Old 10-10-2018, 07:13 AM   #21
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That looks like a good answer to this
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Old 10-10-2018, 08:21 AM   #22
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I think you are over thinking this.



Easy to bypass power steering and AC is on it's own belt. So $13 for a new shorter belt, and remove AC and PS pumps.
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Old 10-10-2018, 08:49 AM   #23
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Quote:
Originally Posted by Texas240 View Post
Cause getting a 2010 corvette water pump on rock auto for Less then $100 and a $25 dollar set of a 3/4" spacers is so hard and looses 1-.25 inch on the pulley and gain space. Win win
there's an off the shelf pump you can get that is already spaced out... why add something else to leak?
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Old 10-10-2018, 04:46 PM   #24
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Quote:
Originally Posted by 240wagonguy View Post
I think you are over thinking this.



Easy to bypass power steering and AC is on it's own belt. So $13 for a new shorter belt, and remove AC and PS pumps.
I did the exact same on my 71 C10. Just Alt. EASY and GM Factory parts.

For the 960 LS I needed to go F Body pulleys, see ICT Billet as mentioned before. The huge benefit to the 3/4 spacers are the built in steam vent ports. Saves a step further down the road.

Make sure to use real GM "o-ring"/aluminum gaskets! The el cheapo fiber gaskets are just that.

And yes, do not overthink it. KISS.
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Old 10-10-2018, 06:07 PM   #25
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Quote:
Originally Posted by cosbySweater View Post


https://www.summitracing.com/parts/i...RoCWx4QAvD_BwE

Did this on my Fairmont. Alternator only on a truck water pump. About as cheap and easy as it gets
This is the bracket I used as well, gives you miles of room for exhaust routing forward. Only downside I encountered with this bracket kit was routing the belt with a straight outlet water neck/t-stat housing on the truck pump. I had to get creative and make my own idler pulley to get the room for the lower rad hose.
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