LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

What's your experience with CSI electric water pumps?

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Old Jun 3, 2003 | 06:33 PM
  #1  
Dave88LX's Avatar
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What's your experience with CSI electric water pumps?

For some reason I can't come up with much on a search. I did find a good thread about wiring it up though.

They're $135 from summit racing. I've got the water pump off right now for a rebuild anyways, no sense in putting a 111K mile water pump back on. Electric shouldn't run me TOO much more, and it should be worth the gain in HP since the cam gear isn't turning the water pump anymore.

Did it come with EVERYTHING that you would need to mount it to the stock water pump housing? I'm pretty sure my gasket kit will come with gaskets to the block though.

Part # 901-LT1 from Summit Racing (Search by manufacturer then that part #).



http://www.csiperformance.com/water_pump2.html


Other question is the hole that remains when I pop out the drive gear. Should it be plugged? There's already 2 holes at the front of the block on either side of it, I don't know how much one more can hurt...

EDIT: If you could also post:

1. How many years/months you've been running it.
2. What state you are in.
3. How many miles it has lasted
4. Street/Strip etc.
5. Any hangups or negatives you've noticed...positives as well

Thanks!

Last edited by Dave88LX; Jun 5, 2003 at 06:40 PM.
Old Jun 3, 2003 | 09:05 PM
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From what I remember it comes with pretty much everything, except waterpump gaskets, and a plug for the timing chain cover. The hole that's left in the block I left open and haven't had any adverse effects.
Old Jun 3, 2003 | 09:38 PM
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All that it comes with is the pump and a plug for the back of the stock pump housing. There was nothing with my kit for the block. My LT1 (1995 engine) has only been in my El Camino for 3 weeks so I can't really talk about reliability yet. With a 160 thermostat my car is running about 165 in the morning and about 180 in afternoon when it's hot out. I do have both a tranny cooler and oil cooler in front of my radiator which could be affecting my temps.
Old Jun 3, 2003 | 10:36 PM
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i havent had mine on there very long but so far it is working good. keeps it a little cooler than before. i cant tell u any gains since i did it at the same time as a cam/RR's/timing chain, ect.
Old Jun 3, 2003 | 10:57 PM
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ttt for ya bro, im interested as well
Old Jun 3, 2003 | 11:01 PM
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had mine for 6 months the only problem i had was the radio shack relay craped out, got a hella realay and no problems. i say make sure to put up an indicator light
Old Jun 3, 2003 | 11:57 PM
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No probs with mine. You need to get some extra wire and a 15 amp fuse though.
Old Jun 4, 2003 | 01:00 AM
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The CSI comes with the motor, a brass freeze plug to close off the hole in the housing, and an O-ring that fits in a groove on the CSI mating surface, pump to housing. Instructions & sticker... Perhaps some other stuff, I forget.

I have a page on wiring it up using the stock AIR pump relay, if you've done the !AIR mod or plan too.

Had mine running for about 3-4K miles I think, no problems. Stays very cool, I have a 160 thermo & programming as well. It doesn't come with bolts, I reused the stockers. Getting new ones might be a good idea, depends how crusty yours are. I left the hole from the drive shaft in the timing cover unplugged.
Old Jun 4, 2003 | 01:02 AM
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Run a relay and you should be set.

Mine didnt come with the plug for the back of the h20 pump? Maybe they forgot to include it. Anyways, it was cheap when i went out and bought it. I also bought the one for the block, but not really needed.
Old Jun 5, 2003 | 06:42 PM
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TTT, check my EDIT...
Old Jun 5, 2003 | 06:49 PM
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Mine has been on for just about a year. I drive my car daily, about 60 miles per. Dunno how many miles.

The only problem I had was the wiring and the dolt who did it (me ). I've since completely redone it with a new relay, better wires, and all has been well.

As far as staying cool when it's up in the 90's here - no problem. Bring it on
Old Jun 5, 2003 | 06:51 PM
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I have had mine in since march 2002. I have many thousand miles on it with only one hiccuup. I ran the wires a little wrong and ended up with cut insulation on one wire that popped multiple fuses and then I think the short was responsible for doing in my ignition.

I really like the CSI. My car does run a little warmer on a really hot day. I have to watch my use of the A/C

BBB
Old Jun 5, 2003 | 07:33 PM
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1) had it for 6 months so far
2) from VA
3) don't know about the miles but i do over 250 miles a week sometimes 400
4) street/strip? street car but damn near wide open everywhere else cept thru traffic and sometimes wideopen then
5) no negatives

I run a 180t-stat it runs cooler now then before.... hottest its been since i had it was 98 outside with the ac on.. and its never gotten over 185
i didnt even wire it using a relay or nothing i think mines wired to the ignition wire coming out the fuse box
it came with a freeze plug to block the hole with and a ring type gasket
you do have to grind the housing to fit the waterpump in. but it isnt bad if u have the tool
Old Jun 6, 2003 | 12:05 AM
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Re: What's your experience with CSI electric water pumps?

1. How many years/months you've been running it.
3. How many miles it has lasted

Did the swap August 2002. Probably at 25k miles. I'm at 28k now. No winter driving. Just weekends pretty much, nice days, go to the track, etc.

2. What state you are in.

Ohio

4. Street/Strip etc.

I run both. The temp never goes past the first slash (210 degrees?), but I'm sure the 160 thermo and programming help that too.

5. Any hangups or negatives you've noticed...positives as well.

Nope, none yet. Wired it up good, no leaks, no problems. I've let the car sit and run for 10-15 minutes and it stays nice and cool. I highly reccomend using a relay btw.

Also, if the pump ever does fail, looks like I can swap it with the pump housing still on the car, sort of cool.
Old Jun 6, 2003 | 12:14 AM
  #15  
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it should cool better than stock at idle correct since its a constant 35gph or whatever and the stock pump only gets to 35gph in the high rpm range?



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