Which water pump is the best

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13 Sep 2013 23:42 #15939 by 928mac
Which water pump is the best was created by 928mac
Over the past few years, here on the forums, i have heard a few different opinions on the different water pumps available to us.
So lets talk about every thing you know about water pumps.

How many are there 2, ...3, ...4 pumps maybe.
good bearings, .... bad bearings
good impellers, ... bad impellers

what are the stats?

Thanks for your help

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14 Sep 2013 06:19 #15940 by Ducman82
Replied by Ducman82 on topic Which water pump is the best
i know of the Laso pumps. i have used one from Roger. non issues
porsche pump is some serious coin.. like 1200 bucks
there are some remans with the metal impeller still. ick.

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15 Sep 2013 10:56 #15943 by the flying scotsman
Replied by the flying scotsman on topic Which water pump is the best
there are made in China (or somewhere cheap) knockoffs.

there are at least 2 if not 3 versions from Laso

then theres the super expensive Porsche unit

I just installed a new Laso last winter on the GTS, the latest version with improved bearings and plastic impeller.....fit and functions perfect.

Phone Roger, he'll get you all set :)

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15 Sep 2013 12:11 #15944 by 928mac
Replied by 928mac on topic Which water pump is the best

there are made in China (or somewhere cheap) knockoffs.

there are at least 2 if not 3 versions from Laso

then theres the super expensive Porsche unit

I just installed a new Laso last winter on the GTS, the latest version with improved bearings and plastic impeller.....fit and functions perfect.

Phone Roger, he'll get you all set :)


Thanks Malcolm, how much did your new Laso pump cost

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15 Sep 2013 20:17 #15948 by mm928
Replied by mm928 on topic Which water pump is the best
I have Roger's water pump as well, put it in this summer.

1983 928S - 16v 4.7L L-Jetronic
Dark Grey w/ Blue Leather
85/86 exhaust manifolds
Y-Pipe
SS Hi-perf Cat
S4 springs
Bilstein shocks
Air pump delete
VIN: WP0JB0926DS861180
- - Isn't Life great? - -

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16 Sep 2013 16:17 #15951 by rluvsporsche
Replied by rluvsporsche on topic Which water pump is the best
I've replace the pump 2 times for past 13 yrs using Laso. Although I wonder how long these units really last. I replace the pump when I do the belts even if they are not broken. I still have one the old Laso in a box. It makes me wonder if it still a good unit to use.

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14 Oct 2013 09:56 #16107 by smtcapecod
Replied by smtcapecod on topic Which water pump is the best
I tried to investigate this a bit as well, given the range of rebuild price points and the fact that one or more folks have elected to rebuild them themselves....I'm not that skilled. My orig had some play in the bearings at 76K, pulled and replaced as a precaution (I asked the p/o if the belt service was done and he promised it was...when I went through the receipts post-purchase I saw that only the belt was replaced...boo...)
In the end the price of the plastic impeller from Laso and the mitigation of risk of chewing up the block from a bearing/impeller issue won the day for me. Basically because I was impressed that the company was willing to receive input and reconfigure production to utilize the plastic impeller in response to community concerns. Seems like providing a good product is important, and shoddy rebuilds would loose market share...

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