Originally Posted by gracer7-rx7
(Post 8705161)
Dave - I don't understand your claim about it cavitating at high RPM. how do you come to that conclusion? On my car (and on others that have tested this in real world situations), I can see coolant temps stay cooler at sustained high RPM compared to the stock water pump on stock pulley. High coolant temps at high RPM (on track) are one of the easily identified symptoms of cavitation.
The reason I got into this at all was that Dale stated that it pumped better AND gave more HP, and I couldn't understand that. |
Ah, I see. I'd probably agree with your analysis if that was the data you were looking at.
I didn't notice any change in HP on my car fwiw. |
Most people wont notice a small drop in the very peak of their power band (especially considering the high RPM point) if there is a small gain in the low end. It is the low and mid range that will stand out on the "Butt-Dyno"
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I may have missed the part on the pulleys. So...is it better to use the stock pulleys or a underdrive set? Right now i have greddy pulleys and was wondering if i need to find me a stock set in order to use this water pump.
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I believe David "Chadwick" has been building a lot of auto-x’ing experience using the Re-medy WP along with underdrive pulleys on a mod’d engine.
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Serious bump from the past. I hadn't seen this before. Thanks for bringing it up again.
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Where the heck is the dyno sheet referenced in the OP in that RE-diculously long RX8 thread?!
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These are still realy available. Ordered mine on Monday got it Wednesday.
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^How much was it? I've been thinking about this, but when they jumped to ~$400 I said screw it.
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Originally Posted by speedjunkie
(Post 9135711)
^How much was it? I've been thinking about this, but when they jumped to ~$400 I said screw it.
http://www.mazmart.com/PartsList.aspx?id=27&n=NEW&m=5 Well worth the price. Get the tstat too while you're at it - $40 if they have them. |
its 245 plus a few dollars shipping
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Oh damn that's not bad. If you're talking about the water level sensor, I already have one of those, but the old one is stuck in my housing so I gotta replace that haha.
Damn I might go ahead and jump on this. |
This water pump is the same items that would come with a Mazda WP; i.e. only the front cover, impellor and pulley hub. It bolts to the WP housing wihich includes the hose neck , thermosta housing extra. You will need a new gasket, and transfer WP pulley.
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No, I know all that. I'm just saying I wasn't sure if he was talking about replacing the level sensor (which is on their page) or the thermostat, both of which I already have. I know it's only the water pump, no big deal. And the gasket comes with it, at least that's what the website says. Either way, I have one of those also. My level sensor got stuck in the neck and I have an extra one laying around somewhere. I just gotta work it out.
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Originally Posted by Julian
(Post 9123029)
I believe David "Chadwick" has been building a lot of auto-x’ing experience using the Re-medy WP along with underdrive pulleys on a mod’d engine.
I just ordered one. |
right, the gasket does come with it, was under packing material at bottom of box.
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I ordered one yesterday!
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intermittant noise from RE-Medy water-pump ?
I finally got the FD to the track, and after a 20-minute session, we are hearing a slight metallic-rub that is coming from the cooling system, most prominent on the nut at 12-o'clock of the RE-Medy water-pump pulley (use used a long screw-driver touched various parts and placed our ears on the screw-driver handle).
After a 30-minute cool-down, it goes away. It is INTERMITTANT with no set pattern, or cyclical rhythm. We were thinking the pump impeller might get lose at high-temps, but then it would be cyclical noise, which it isn't ? Any other ideas ? Thanks, :-) neil FWIW, with the OLD water-pump, typically water temps would be closer to 220-F at the track; with the RE-Medy water-pump, it's been a steady 210-F running 14-lbs of boost on a mild-street port, with stock turbos 4x850cc injectors, and stock airbox, and SMIC. |
Can someone tell me what the bolt thread and pitch is on the water housing? One of my old and corroded bolts snapped when trying to take one off.
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Originally Posted by Bluewind
(Post 9340984)
Can someone tell me what the bolt thread and pitch is on the water housing? One of my old and corroded bolts snapped when trying to take one off.
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Originally Posted by Bluewind
(Post 9340984)
Can someone tell me what the bolt thread and pitch is on the water housing? One of my old and corroded bolts snapped when trying to take one off.
Also, I have this water pump on now, and I'm usually hovering around 170*F with the fans on all the time. I don't have an undertray on right now, and I have a VMIC setup so my radiator is mounted a little differently. I'm also running mostly water and there should be a little water wetter still in the system. Just for information's sake. |
I installed the pump and testing has begun :)
My old pump with 120k miles has finally died. Started weeping from bottom of weep hole who knows how long ago. I knew it was going to die because the pulley had a little bit of wobble and was starting to eat my main drive belt.
Here's some pics I took of the new pump, my old pump Here's some pics of the install, I replaced the thermostat & water pump housing/front cover gasket too
Originally Posted by speedjunkie
(Post 9344719)
You could take one of the other bolts out and take it to Autozone and run it in their pitch/thread board to see what size it is. Just a thought. Or if you have a tap and die set, you can use the tool that comes in the kit to find that info too.
Originally Posted by speedjunkie
(Post 9344719)
Also, I have this water pump on now, and I'm usually hovering around 170*F with the fans on all the time. I don't have an undertray on right now, and I have a VMIC setup so my radiator is mounted a little differently. I'm also running mostly water and there should be a little water wetter still in the system. Just for information's sake.
Oh, and the added hp business... can't tell a difference. I probably couldn't really tell even if I made or lost 10 hp. |
great picture and info on your experience Mike. thanks. Interesting preventative maintenance upgrade for our FD.
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Originally Posted by mdpalmer
(Post 9540703)
Here's some pics I took of the new pump, my old pump
Here's some pics of the install, I replaced the thermostat & water pump housing/front cover gasket too |
Originally Posted by mdpalmer
(Post 9540703)
Don't you think 170 is a little too cold? :)
I don't think my temps have risen under throttle either, but I don't remember for sure. I'll have to pay attention next time. |
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