water pump or crossover ?
03-22-2002 | 08:14 PM
#1
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From: Clearwater, FL
water pump or crossover ?
Why change from recirc pump to crossover,,, pro's con's ,,,, does it matter more for carb or injected? The subject came up, I just wanted more input,,,, merc puts pumps the 502 mag,.,,,, but a 500 gets a crossover,,, why !!!????
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03-22-2002 | 09:46 PM
#2
Ginger or Mary Ann?
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From: L
Re: water pump or crossover ?
Originally posted by obnoxus
merc puts pumps the 502 mag,.,,,, but a 500 gets a crossover,,, why !!!????
merc puts pumps the 502 mag,.,,,, but a 500 gets a crossover,,, why !!!????
Crossovers can mostly be found on blower motors, BUT, even Merc puts water cir pumps on their blower motors: SC525, SC575, SC600, & SC800
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Last edited by US1 Fountain; 03-22-2002 at 10:05 PM.
03-22-2002 | 10:54 PM
#3
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right,,, but not the 500hp !!! thats what I don't get,,, what makes it right for one motor and not another,,, I have heard a crossover is better provided you keep a thermostat, I have also heard you need the pump,.!!!!! ARGH !!!! 
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03-22-2002 | 11:10 PM
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Ginger or Mary Ann?
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From: L
Might recheck your source.
The crossover allows for better cooling, which is a must for a blower motors in order to help prevent detonation. Yet Merc must feel pretty confident in the w/p capabilities on their blower motors and, yes, the HP 500's.
I agree, a t-stat is a must. You must have to have the correct plumbing if you do use a crossover with a stat.
My opinion is that on a stock nat asp motor, the stock setup works great and is very hard to beat.
Jerry
The crossover allows for better cooling, which is a must for a blower motors in order to help prevent detonation. Yet Merc must feel pretty confident in the w/p capabilities on their blower motors and, yes, the HP 500's.
I agree, a t-stat is a must. You must have to have the correct plumbing if you do use a crossover with a stat.
My opinion is that on a stock nat asp motor, the stock setup works great and is very hard to beat.
Jerry
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Some people are like Slinkies - Not really good for anything, but they
bring a smile to your face when pushed down the stairs.
Some people are like Slinkies - Not really good for anything, but they
bring a smile to your face when pushed down the stairs.
Last edited by US1 Fountain; 03-22-2002 at 11:40 PM.
03-23-2002 | 05:37 PM
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Thanks guys,,,, OK Paul,, now does this answer your question !!!!!!!
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03-24-2002 | 09:04 AM
#9
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Can't stand being wrong can ya !!!! Hey,,, look at it this way,,, I just saved you $200 !!!!
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03-24-2002 | 09:24 AM
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From: Gainesville Fl.
Why I did not need a X over 454 mag no blower!!Someone said and I thought it would be less trouble-right.Installed x over,now the water pressure is to high,I thought and weilded pressure valve on x over, great water pressure is right on. Now water temp. is not stable enought for me,I thought and now I am trying to get y pipe made up to pre heat water from exhaust. Not much left now but I think I thought to much and did not know enough.James
