best waterpump for sr20detttt ?

[alesserfate]

well just one 't' to be honest

but the question is, what's the best water pump for sr20det rwd (s13)

i've had s13/s14sr water pumps on my S13 sr's (yes s14 sr water pump works on s13 sr) over the years and all worked great

well its time to change on a motor thats been added to the family and i remember reading somewhere that people run a z32 one ? is that bull ?

i am leaning towards just grabbing a stock sr20det waterpump once again but wanted to find out what all the rumors were about the z32 or s14 sr one, are they truly better ?

input ? :cj:

[fliprayzin240sx]

Umm...how the fuck would a water pump off a VG fit an SR20 one? Get a fucking OEM pump and call it good...there isnt any upgrade for a water pump. Hell, there isnt even any upgrade for a oil pump anymore.

[Sam_Well.13]

OEM is always best.

[alesserfate]

i never seen a vg30 one so i didnt know, thanks for clearing that up

as for s13 vs s14 pump

the s14 one has a deeper cavity on the side faceing the coolant void on the front of the block, both bolt up to the motor

s14 http://i2.frsimg.com/images/detailed_images/Nissan_S14WaterPump_5.jpg

s13
http://i1.frsimg.com/images/detailed_images/Nissan_OEMSRWaterPump_1.jpg

[Sam_Well.13]

you ever check the diameter.. i mean yea it bolts up to the block. but what happens when you try to put the belt on.. would it still be uniform with all the belts???

[alesserfate]

you ever check the diameter.. i mean yea it bolts up to the block. but what happens when you try to put the belt on.. would it still be uniform with all the belts???

yes its fine i ran it for 2 years on my other motor and its still on there, its just an extra bolt hole

[Sam_Well.13]

well then there you go. this thread was pointless if you knew exactly what you were doing. bro.

[alesserfate]

well then there you go. this thread was pointless if you knew exactly what you were doing. bro.

lol no it wasnt, i asked whether if anyone knows for sure if the s14 pump is better, and whether the z32 myth was true (which has been answered)

[Sam_Well.13]

-____-you jst said you ran S14 WP on you S13 SR....

im confuse bro.. just stick to the OEM pump and concentrate to the hose, cooling fan, radiator and thermostat.

[alesserfate]

-____-you jst said you ran S14 WP on you S13 SR....

im confuse bro.. just stick to the OEM pump and concentrate to the hose, cooling fan, radiator and thermostat.

lol yea.. but i dont know if it makes any difference in performance or not

some guys run s14 sr pumps on their s13 sr's claiming its better so i wanted to know if thats true

[Sam_Well.13]

the only way to find out is get a temp gauge. see if it cools your engine more than the S13 naw'mean.

[alesserfate]

the only way to find out is get a temp gauge. see if it cools your engine more than the S13 naw'mean.

yeah, i was thinking because its curved in like that it improves the flow

[fliprayzin240sx]

Everything I've seen between the S13 and S14/15 pump is speculation. Supposedly, the S14 ones are less prone to cavitation at high rpm...again, speculations. But hey, if nissan decided to change the pump on the S14 even tho the block was unchanged, that must mean something.

[conrad_s13.5]

someone's had to try it out on here!

[slider2828]

Ima try that... S14 SR water pump on S13 SR ... Interesting....

S13SR definitely gets cavitation at the very end of the day... I put on a Stance Oversized water pulley and my temps ARE higher, but less cavitation... hmmm interesting...

Next time I do a water pump which is 2 years down the road, I will remember lol!

[Team DET]

how about a electric water pump Meziere Enterprises WPK510 - Meziere Import Electric Water Pump Kits - Overview - SummitRacing.com (http://www.summitracing.com/parts/MEZ-WPK510/?rtype=10) are these any good

[alesserfate]

how about a electric water pump Meziere Enterprises WPK510 - Meziere Import Electric Water Pump Kits - Overview - SummitRacing.com (http://www.summitracing.com/parts/MEZ-WPK510/?rtype=10) are these any good

ah i wouldnt get that, i want to keep my stock clutch fan, and no room in my engine bay for something like that + don't want to cut into my rad hoses + i think stock is more reliable then a constantly ripping electric motor, and is probably a heavier setup too

i'm sitting on s13 sr pump vs s14 sr pump right now about to order from frsport

ps anyone ever find premade gaskets for the waterpump ? i hate using the liquid gasket on there since i have to wait for it to dry before tightening it up, which sucks doing in a apartment building parking lot where people are constantly telling you you cant work on your car here, and camping trips to work on your car at a campsite suck too, so it would be nice to just pop a gasket in there and tighten it up right away

[Z_Spool]

...But hey, if nissan decided to change the pump on the S14 even tho the block was unchanged, that must mean something.

Best bit of logic I've read in this thread... I'd go with what Nissan's R&D decided on. :)

[alesserfate]

Best bit of logic I've read in this thread... I'd go with what Nissan's R&D decided on. :)

thats what i was thinking too, but then again, the s14 sr head has different coolant passages then the s13 sr head, and has alot more coolant things under the intake manifold then the s13 sr coming right from the head

anyway if they wanted to change a part, they'd discontinue the old one (s13 sr pump), like the timing chain tensioners, they only have the s14/s15 sr timing chain tensioner now and no longer make the s13 sr timing chain tensioner, hence telling us to use only the new one

im gonna buy the s13 sr pump, done deal, thanks for all the input.

[Luvs2slide]

I heard Yashio Factory made a pump...Not sure if its discontinued or not.

[chituntang]

But hey, if nissan decided to change the pump on the S14 even tho the block was unchanged, that must mean something.

I do not see SR is that much better than CA, so why Nissan replace it? Or the RB's?

It means something, but not necessary better in performance. It also has a lot to do with other things.

[hOngsterr]

just use the s13 one and get a larger pulley that mounts to it, your water temp will be a bit higher at idle, but if your a spirited driver or track fiend, it'll keep your SR cooler.

[Def]

Use the S13 one. Supposedly the S14 casting on the block is different, so using the S14 pump in an S13 block means way less flow.

[slider2828]

just use the s13 one and get a larger pulley that mounts to it, your water temp will be a bit higher at idle, but if your a spirited driver or track fiend, it'll keep your SR cooler.

I dunno if this is true, that it will keep it cooler, but I can tell you for sure less cavitation at high rpm....

[fishboi]

Why does the larger pully raise the temp? and at the same time reduces cavitation. Im confused.

[alesserfate]

Why does the larger pully raise the temp? and at the same time reduces cavitation. Im confused.

bigger wp pulley = slower then stock(smaller pulley) rpm at idle
but stock size pulley, spins too fast at high rpm and causes cavitaition
so biigger pulley puts it into normal (non cavitating) rpms at high rpms, but the downside is at idle it spins way too slow not cooling it enough

[fishboi]

Ohhh I see! Thanks for clearing that up. So is it possible for the car to over heat at idle on a very hot day since it spins slower?

[alesserfate]

Ohhh I see! Thanks for clearing that up. So is it possible for the car to over heat at idle on a very hot day since it spins slower?

yes it will either run hotter or overheat (depending on your coolant mixture and radiator core)

[S13SILVIA|E46M3]

I have one of these on my 13 SR http://www.jdmperformance.co.uk/images/products/JunWaterPump.jpg JUN water pump. Supposedly a "high capacity" water pump. Its been on for years, never had a problem...

[S13SILVIA|E46M3]

Just dug up some old pics, some side by sides....
http://i6.photobucket.com/albums/y238/JohnathanS13E46/For%20Sale/Nissan/P1010309.jpg
Stock S13 WP vs JUN WP
http://i6.photobucket.com/albums/y238/JohnathanS13E46/For%20Sale/Nissan/P1010310.jpg

Overall bigger diameter and wider blades. Gotta love JUN... Hope this help :D

[Psycho 240 Freak]

Ohhh I see! Thanks for clearing that up. So is it possible for the car to over heat at idle on a very hot day since it spins slower?

That's the reason for the fan.

[sidedrifts13]

how much was it and where cn i order on of these?Just dug up some old pics, some side by sides....
http://i6.photobucket.com/albums/y238/JohnathanS13E46/For%20Sale/Nissan/P1010309.jpg
Stock S13 WP vs JUN WP
http://i6.photobucket.com/albums/y238/JohnathanS13E46/For%20Sale/Nissan/P1010310.jpg

Overall bigger diameter and wider blades. Gotta love JUN... Hope this help :D

[Team DET]

from jun JUN AUTO - JUN HIGH FLOW WATER PUMP (http://www.junauto.co.jp/products/engine-accessary/water-pump/index.html?en) @ $643.87 it better be good lol

[S13SILVIA|E46M3]

how much was it and where cn i order on of these?

There's 2 options for these, normal oe fan or electric fan.
(Did a quick search and only found a few sites that carry the pumps now...)
Normal Fan
Jun Auto NISSAN SR20DET(R)PS13 normal fan Water Pump [JUN-2016M-N001] EDO Performance (http://shop.edoperformance.com/jun-auto-nissan-sr20detrps13-normal-fan-water-pump-p-6314.html)
JUN High Flow Water Pump for OEM Fan (http://www.rhdjapan.com/jun-large-capacity-water-pump-11065)
Electric Fan
Jun Auto NISSAN SR20DET(R)PS13 electric fan Water Pump [JUN-2016M-N001R] EDO Performance (http://shop.edoperformance.com/jun-auto-nissan-sr20detrps13-electric-fan-water-pump-p-6315.html)
JUN High Flow Water Pump for Electric Fan (http://www.rhdjapan.com/jun-large-capacity-water-pump-11055)

Problem is they are a little on the rich side, range from $438-597. I did not pay anywhere close to that. JUN was so much easier to get and cheaper when they were in the states, for there short span of time. People didn't know a good thing when they were here:-/