Meziere water pump reliability

Pumpkinfish

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The pulley size difference is to allow the WP pulley to clear a Kenne Bell tensioner. No, it doesn't do shit for belt wrap. If nothing else it makes it a little bit worse because the pulley is smaller by a half inch or so.

The standard 4.3v pump is a wp346s, and the one designed to work with the Kenne Bell tensioner is a wp347s

What's the part number for the one with the V10 pulley for us Saleen guys ;-)
 

hamish

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I don't think there is one.
I contacted them in the summer and said they didn't have that option.
Might have to convince them to do it for you.
 

tmcolegr

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What's the part number for the one with the V10 pulley for us Saleen guys ;-)

WP346S Water Pump w/WP3126 Pulley (V10 - 5.5")

I don't think there is one.
I contacted them in the summer and said they didn't have that option.
Might have to convince them to do it for you.

That's odd, I have one. Perhaps now it is a special order item.

100_1106.jpg
 
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hamish

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^ odd is right!
I'm pretty sure it was your build I was following.
When I contacted them directly all I got from them is why I would need that v10 pulley size?
I explained I had a saleen supercharger and it would help with belt wrap.
He said that was a good idea.
I pretty much gave up right there.
 

crownaviation

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Bringin it back i guess...

So are these pumps really worth the coin? Apparently the trouble experienced by some with superchargers was due to the support idler and bearings. To correct this they have the pump Sharrod posted.

The WP349S evidently has a better bearing setup (dual ball bearing) for the extra belt tension.

Now, my question is is it REALLY worth the $600? I mean, really? They say wow... an extra 11-14 hp. Thats some expensive HP. I am not shooting for world HP records here, just around 650-700. Hell, that is about what they charge for a NEW FORE hat with dual 405's. WTF... how is a waterpump worth $600 unless some hot asian honey comes in the box to install it?
 

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Bringin it back i guess...

So are these pumps really worth the coin? Apparently the trouble experienced by some with superchargers was due to the support idler and bearings. To correct this they have the pump Sharrod posted.

The WP349S evidently has a better bearing setup (dual ball bearing) for the extra belt tension.

Now, my question is is it REALLY worth the $600? I mean, really? They say wow... an extra 11-14 hp. Thats some expensive HP. I am not shooting for world HP records here, just around 650-700. Hell, that is about what they charge for a NEW FORE hat with dual 405's. WTF... how is a waterpump worth $600 unless some hot asian honey comes in the box to install it?

In my opinion no. They are very nice products, but you have to think about this. The power you are so call gaining is not nearly as much as you would think. These pumps will increase the load on your alternator which will negate some of the gains. Also these pumps are just on/off pumps. If they had PWM control then there would be much more to gain from them. There is no need to run a water pump full bore on a street car (any OEM vehicle with an electric water pump varies the speed of the electric water pump so it reduces the load on the alternator) If that is required then there are other issues at play.

You should easily be able to hit your goal without the electric engine water pump. You are the one using the DOB manifold with the 2013 GT500 TVS, correct? I would talk to Justin at VMP and Brian at Posi Performance about porting, big elbows, etc before venturing to the electric water pump. Hell an 8-rib conversion would be a better upgrade IMO!
 

crownaviation

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Have a 8 rib conversion and did not think about possible issues with that either (suppose it should work). After I get the motor back together and running I am going to swap out to the 13 TVS.

Yeah, I looked all over the sight and they were pretty specific about what was included,,, and definately no hot asian chicks included.. Too much $$ for what it does. The only thing I thought might be nice was to use it at the track for pulling heat between runs.
 

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Awesome. You have good goals ahead of you. I am doing the DOB manifold with a 08 GT500 eaton supercharger this winter. But I am still on the stock engine and just looking for some more power at the moment.

Yes the pump itself is very good, but it is a very expensive piece. If I were to go electric water pump I would go wit a David Craig one (http://www.daviescraig.com.au/Electric_Water_Pumps-list.aspx) with a digital water pump controller. You could program it to read a signal of RPM or whatever you wanted. It would be a bit expensive and you would have to figure out some sort of belt routing.

Not sure if it is worth all the effort, but if you can fab or have access to a machine shop I am sure you could get it to work.
 

101fng

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i think the reliability and consistency is what sells the EWPs. being able to continue circulating coolant with the engine shut off is also a nice benefit of running an EWP. the rwhp gained from reducing parasitic drag is only a bonus.
 

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i think the reliability and consistency is what sells the EWPs. being able to continue circulating coolant with the engine shut off is also a nice benefit of running an EWP. the rwhp gained from reducing parasitic drag is only a bonus.

Yes I can understand it from this point, but to cool the engine down effectively you should be using the radiator fan as well. But if you are doing that much racing I am sure that is already known.

My biggest gripe is the on/off type deal and the price. If it were a bit more cost effective then it wouldn't be as bad, but nearly $600! There are a lot of other modifications to gain power that definitely do better than that and that is what crownaviation was asking.
 

crownaviation

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Awesome. You have good goals ahead of you. I am doing the DOB manifold with a 08 GT500 eaton supercharger this winter. But I am still on the stock engine and just looking for some more power at the moment.

Yes the pump itself is very good, but it is a very expensive piece. If I were to go electric water pump I would go wit a David Craig one (http://www.daviescraig.com.au/Electric_Water_Pumps-list.aspx) with a digital water pump controller. You could program it to read a signal of RPM or whatever you wanted. It would be a bit expensive and you would have to figure out some sort of belt routing.

Not sure if it is worth all the effort, but if you can fab or have access to a machine shop I am sure you could get it to work.

Nice! I like the digital controler.. I think for now I am going to stick with stock WP. Too many changes at once never a good thing. Thanks for the info on the daviescraig pump.

Btw, you certainly won't be disappointed by the DOB setup!
 

toorbeenee

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i have had mine over a year now, i have seen 15~25 deg drop in temp, plus i have a small light in the car just to make sure its running(warning light)
 

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Nice! I like the digital controler.. I think for now I am going to stick with stock WP. Too many changes at once never a good thing. Thanks for the info on the daviescraig pump.

Btw, you certainly won't be disappointed by the DOB setup!

Not a problem! If I were to do an electric water pump that is the set-up I would do. I am sure it would need some engineering work, but it would be a sweet setup when completed.

Agreed on too many changes at once is never a good thing! That's a rule of engineering in my book.

I am excited to do the DOB setup. I have been working with Jason on installing one locally to me (since Jason is local to me). I have seen first hand on how to install it. I already have most of my items acquired and how I want to do mine. I'll post up a thread this fall when I start.

i have had mine over a year now, i have seen 15~25 deg drop in temp, plus i have a small light in the car just to make sure its running(warning light)

Nice! Good call on the warning light. Loosing the pump will cause overheating extremely fast.
 

mot250

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When did they go up in price? I swear the one for my 06 3v GT was closer to $300 with the wiring package.

No problems with it at all. Guessing at least 40,000 miles on it so far (however many hours that might be I have no clue).
 

crownaviation

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I am excited to do the DOB setup. I have been working with Jason on installing one locally to me (since Jason is local to me). I have seen first hand on how to install it. I already have most of my items acquired and how I want to do mine. I'll post up a thread this fall when I start..


That must be nice! You guys have lots of support up there in MI. Not many people here speak 3v.
 

crownaviation

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When did they go up in price? I swear the one for my 06 3v GT was closer to $300 with the wiring package.

No problems with it at all. Guessing at least 40,000 miles on it so far (however many hours that might be I have no clue).

Yeah, still around there with 2yr warranty but those are not for the supercharged applications.
 

908ssp

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I was considering switching to the Meziere engine water pump. If I did it I'd get the one without the pulley. You can easily run the belt from the crank pulley over the top of the lower right idler to the power steering pump. The only thing you need to figure out is the length of the new shorter belt. A shorter belt is another win as they stretch less. The pump is $400 without the idler.
 
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crownaviation

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I was considering switching to the Meziere engine water pump. If I did it I'd get the one without the pulley. You can easily run the belt from the crank pulley over the top of the lower right idler to the power steering pump. The only thing you need to figure out is the length of the new shorter belt. A shorter belt is another win as they stretch less. The pump is $400 without the idler.

I might try that. Wonder if I could just use the standard Meziere WP346 pump and remove the pulley? Might be worth a shot if I can get one for cheap.
 

908ssp

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Meziere sells the pump without a pulley and they say not to remove the pulley for some reason or maybe it was not to bypass the pulley if it has one mounted. The ones with a pulley are nearly $200 more money.
 

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