LT1-LT4 Modifications 1993-97 Gen II Small Block V8

Power advantages with EWP

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Old Oct 21, 2012 | 06:17 PM
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Default Power advantages with EWP

So on average how much power does a cam driven water pump rob? Just curious but ive heard coolant flowing issues with an EWP in daily driven cars.
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Old Oct 21, 2012 | 06:20 PM
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It's no secret that EWPs flow less in the higher RPMs than their cam-driven counterparts but rarely does that cause a problem. I've been driving with an EWP for 8 year now, granted it isn't my DD now but it was for 3 years after I installed it and I never had a cooling issue.

You'll find some people hate them and others love them. I personally don't see a problem with DDing an EWP car, as long as you wire in a warning system (how-to's are all over the place).
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Old Oct 21, 2012 | 07:08 PM
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HAd mine on since they came out(2000-2001) 8 RWHP every time we put one on
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Old Oct 21, 2012 | 09:26 PM
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I have one on my dd car. It actually cools the car so much better than the cam driven that I had to put the 185* t-stat back in it because the 160* wouldn't let the car get over 130* on the stock temp gauge. Car runs great, but the butt dyno didn't show any marked improvement over stock.
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Old Oct 21, 2012 | 10:00 PM
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I wouldnt do it on a street car, 8 rwhp isnt going to do anything for you
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Old Oct 22, 2012 | 05:04 PM
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Thanks guys. I would imagine in a DD it cools it better at a stop light then it does on the highway cruising 3000rpm?! I notice the cam driven water pump hates low rpm because of the flow of coolant and the lack of cool air flowing to the rad.
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Old Oct 22, 2012 | 05:06 PM
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Originally Posted by duh
I have one on my dd car. It actually cools the car so much better than the cam driven that I had to put the 185* t-stat back in it because the 160* wouldn't let the car get over 130* on the stock temp gauge. Car runs great, but the butt dyno didn't show any marked improvement over stock.
Doesnt LT1's like to be 130? I thought the cooler the better?! I have a 160 thermo on mine and she runs 170 on highway and about 190 in the city.
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Old Oct 22, 2012 | 07:22 PM
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I had a EWP on my '94, the HD version. Loved it. I still have it, seems it hasn't sold yet. It's mounted to a HD Corvette style pump, the heater hose outlets worked better for me. It has a brand new motor brush set & end cap.
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