HD water pump LTx ????
07-10-2012, 08:27 AM
#42
FWIW I have a CVR HD electric unit I got from Summit. It is rated at 55 gpm while the CSI/CSR is in the mid 30s. IT really moves the water. The down side it that it is a good 3/4"-1" taller that the CSR unit. The impeller is huge.
I have been driving it around in the 98-107 degree heat and it never got over 170. The needle hardly moved off of 160. That is with no front air damn under the car and 70+ mph runs down the high for 30 miles at a time.
I have been driving it around in the 98-107 degree heat and it never got over 170. The needle hardly moved off of 160. That is with no front air damn under the car and 70+ mph runs down the high for 30 miles at a time.
If you are just watching the dash the rise may not be enough to see, it is only a few degrees not 10+.
Did you ever run the 160 stat with a mechanical pump?
As I have said a BUNCH of times and the blind faithful want to ignore the electrics free up power by doing LESS work, moving LESS water. You just want to ignore that inescapable fact.
The electrics are FREEFLOW rated the mechanical documentation we have is "as installed" on the engine it move 65-66gpm against the closed stat even due to the way it recirculates water rather than deadheading.
That impeller is not a positive displacement pump so the restriction of being installed on an engine will hurt it's flow so they do NOT actually move 55gpm once installed.
07-10-2012, 10:12 AM
#43
If you are just watching the dash the rise may not be enough to see, it is only a few degrees not 10+.
Did you ever run the 160 stat with a mechanical pump?
As I have said a BUNCH of times and the blind faithful want to ignore the electrics free up power by doing LESS work, moving LESS water. You just want to ignore that inescapable fact.
The electrics are FREEFLOW rated the mechanical documentation we have is "as installed" on the engine it move 65-66gpm against the closed stat even due to the way it recirculates water rather than deadheading.
That impeller is not a positive displacement pump so the restriction of being installed on an engine will hurt it's flow so they do NOT actually move 55gpm once installed.
Did you ever run the 160 stat with a mechanical pump?
As I have said a BUNCH of times and the blind faithful want to ignore the electrics free up power by doing LESS work, moving LESS water. You just want to ignore that inescapable fact.
The electrics are FREEFLOW rated the mechanical documentation we have is "as installed" on the engine it move 65-66gpm against the closed stat even due to the way it recirculates water rather than deadheading.
That impeller is not a positive displacement pump so the restriction of being installed on an engine will hurt it's flow so they do NOT actually move 55gpm once installed.
It has only really run close to hot and that was right before I parked it and tore into it and then again after I got it running again. I figured the csr pump was on it way out so instead of buying the same thing I decided to try something new.
My car has always run on the cooler side since I started screwing with it.
We scan it all the time and never rely on what the gauges are saying.
07-10-2012, 10:44 AM
#44
The latest LTX Meziere unit is only 50 GPM so maybe they've improved things since then:
http://www.meziere.com/ps-813-781-wp118hd.aspx
Last edited by Rob94hawk; 07-10-2012 at 10:56 AM.
07-10-2012, 10:54 AM
#45
a. overheated
b. had any recent cooling system work done
c. had any timing issues - if anything my mail order tune was a bit too rich as they usually are.
and was just cruising along at 70mph, functional air dam blah blah blah.
and take out the water pump on top of that?
Again, possible, but if I had to bet which went first I'd say the pump.
07-10-2012, 11:00 AM
#46
I have the Meziere electric WP and I can't tell any difference in operating temp over the mechanical stock pump. Only real benefits is it's less parasitic drag for those last few "bolt on" extra hp and freedom in choosing gen 1 timing sets. Oh yea, and you can leave it running with the car off for quick cool downs between runs if you take it to the track.
07-10-2012, 11:05 AM
#47
I have the Meziere electric WP and I can't tell any difference in operating temp over the mechanical stock pump. Only real benefits is it's less parasitic drag for those last few "bolt on" extra hp and freedom in choosing gen 1 timing sets. Oh yea, and you can leave it running with the car off for quick cool downs between runs if you take it to the track.
07-10-2012, 11:12 AM
#48
No, I don't take my car to the track very often to justify that; my fans are tuned however to come on early to compliment the 160 stat though in normal driving. My car stays right around 180-190.....but it has gotten as high as 215 in this hot weather sitting still in traffic.
07-10-2012, 11:24 AM
#49
I just did the manual fan switch mod on my car. With the mechanical water pump, 180* thermostat, and in 105* Tennessee weather, and the low speed fans on, it sits around 190*, sitting in traffic for an extended period of time. High speed fan and it'll go down to a lil bit above 160.
