Jump to content
SAU Community

Recommended Posts

I know that bosch makes a water pump suitable for an rb20/35/26/30 so they are all the same in design... However i believe the flow rate would be different from a stock item....

But yeah they do all fit each other.... Its only the oil pump that is different...

Link to comment
https://www.sau.com.au/forums/topic/93042-water-pump/#findComment-1679378
Share on other sites

No it is not the same, but you can use the rb30 water pump.

It has less blades so it flows less coolant at a given revs. Which means you get the similar effect as the N1 water pump at about 20% of the price :)

Link to comment
https://www.sau.com.au/forums/topic/93042-water-pump/#findComment-1679397
Share on other sites

Thanks guys!

I got a price on both water pumps:

R32 GTR water pump $325

VL Turbo water pump $126

I might save myself any hassle and get the R32GTR pump. Massive price difference though!

From my experiences the only different one is the rb25 pump.\

If I were you I'd just get the holden one - mind you that is a pretty expensive price you've got there - I'd look a bit harder.

Cheers

Link to comment
https://www.sau.com.au/forums/topic/93042-water-pump/#findComment-1682811
Share on other sites

There is a mounting hole different between the rb20 and 25 pumps, the small one to the top right of the impeller when looking from the front is in a slightly different position.

The N1 pump has an elongated hole so fits both.

I also picked up my last genuine pump (for an rb20) for about $130.

Link to comment
https://www.sau.com.au/forums/topic/93042-water-pump/#findComment-1684753
Share on other sites

davies craig are certainlly electric....

All they make are pumps and fans...

I heard they are "no good" on RB26's by a workshop here in Melbourne. I was pretty keen on running an electric water pump as I have read that you would be able to gain as much as 15kw at the rears.

Anyone use these pumps on RB26?

Link to comment
https://www.sau.com.au/forums/topic/93042-water-pump/#findComment-1686254
Share on other sites

a water pump is a water pump. it has a pretty basic job to perform. :P i cannot see how one pump will be "no good" for a particular engine. did they give you any reasons or anybody else heard this?

from memory the davies craig pump itself is <$200 and there's a EWP controller that allows you to set engine temps (through flow rate of the pump) and keep the water pump running after engine shut-off to assist in cooling everything down.

i've yet to hear bad things about the thing...

d

Link to comment
https://www.sau.com.au/forums/topic/93042-water-pump/#findComment-1686461
Share on other sites

if your electrics fail your car will not run either, so the no pump wont be such a problem. lol.

but i agree if the wiring was faulty just for the pump it could be a problem, but a simple warning buzzer could be incorporated.

I must say i have heard people say to stay away from them too, but i've never heard it backed up. I'd love to know why there is such a fear of using them on GTRs.

Link to comment
https://www.sau.com.au/forums/topic/93042-water-pump/#findComment-1687089
Share on other sites

i didn't have any problems whatsoever on my gtst with the ewp. i was very impressed with it. and i've yet to hear about one failing. i'd love to hear any problems people have had tho!

and re: the electrics. if you install ANYTHING dodgily on a car you're gonna have headaches. it isn't hard to wire one of these suckers up, nor is it hard for anyone with a head on their shoulders to make the wiring reliable.

d

Link to comment
https://www.sau.com.au/forums/topic/93042-water-pump/#findComment-1687245
Share on other sites

and re: the electrics. if you install ANYTHING dodgily on a car you're gonna have headaches. it isn't hard to wire one of these suckers up, nor is it hard for anyone with a head on their shoulders to make the wiring reliable.

mmmmmmmm My thoughts exactly! I'm really keen on going with the electric water pump. In two minds now. What do I do? Pay $325 for a new GTR water pump or a little over $200 for an electric water pump? :)

Link to comment
https://www.sau.com.au/forums/topic/93042-water-pump/#findComment-1687393
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Similar Content

  • Latest Posts

    • @joshuaho96 Hmm considering the drama you've seen/experienced, have you looked into getting a built complete long motor shipped from Australia?  Considering the AUD is basically monopoly money when compared to the USD, at a glance this seems like a good option?
    • Bloody Skylines, they put you through the bloody wringer! Stick at it! Stunning drag strip BTW! Where is it? Can see part of the name on the slip and probably should just Google it!
    • I mean the other day I had to walk someone through diagnosing why their timing belt was walking off the cam gears. At least one of the issues was a bent tensioner stud. Local mechanics have found runout on the CAS mechanism causing weird failures. I'm also no saint here I've documented some of the things I've had to learn the hard way. Something I discovered recently is that my CA emissions catalytic converters weren't even welded correctly to align the downpipe to the main cat and they tossed the support bracket that goes from the transfer case to the downpipe to support everything there. I spend a lot of time chasing down these decidedly unsexy problems and the net effect is it feels like I never actually get to the original objective (flex fuel, VCAM, oil control, cooling, etc).
    • At times with how you make everything sound, all I imagine Americans doing when they see a gtr is standing there looking at it and bashing it with a gun like how a caveman would with a club and hoping it fixes itself 
    • I think this is just a product of how the US market works for this stuff. Shops are expensive and there's no real way of knowing what kind of results you're going to get, people don't really have the institutional knowledge. I have heard too much at this point to really put faith in anybody "full service" except maybe DSport and they aren't really a full service kind of shop. If you go to the right place I have no doubt they'll get it right for you. Some locals have set it up right but the cost really is nuts and even now they're still fighting issues. And you know I'm a crazy person who thinks things like twin scroll, relatively short low-mount cast headers, PCV recirc to intake, recirculating BOV, right-sized for ~400 whp, MAF load, validating all of that to a standard comparable to OEM test programs, etc are relevant. For what it's worth, multiple local owners at this point have been stuck in a perpetual cycle of blowing a motor -> getting someone to rebuild it -> some missed detail causes the bearings to wipe and spin just outside of break-in mileage or drop valves or some other catastrophe -> cycle repeats. I usually only find out about this because I'm perpetually helping random friends with diagnosing car troubles, Skyline or otherwise. The single turbo stuff if I'm honest is mostly secondary, it just doesn't seem to achieve the numbers in the ~2000-3000 rpm region that I would expect given the results I've seen here or in Motive's videos. I don't really know what we're missing here in the US to be causing this. Lots of people like to emphasize the necessity of finishing the project first and foremost, but I'm not made of money and I can't afford to be trashing a 15k+ USD engine build with any regularity. Or spending my relatively limited garage time these days unable to triangulate problems because too much was changed all at once. Also, even if it isn't a catastrophic failure I would consider spending the cost of single turbo conversion with nothing to show for it to be pretty bad. 
×
×
  • Create New...