Jump to content
SAU Community

RB Reimax Water Pumps - High Flow Designs - Anyone used them?

The Mafia

By The Mafia,
in Forced Induction Performance

 Share

Recommended Posts

  • Replies 72
  • Created
  • Last Reply

Top Posters In This Topic

Popular Days

Top Posters In This Topic

Popular Days

Popular Posts

GTSBoy
GTSBoy

On the stock temperature gauge, if it moves off of the centre at all, it is getting pretty hot. On a proper coolant temperature gauge, anything over a real 110°C is starting to be concerning.

The Mafia
The Mafia

I should probably update my experience too.  I stuck with the stock water pump and changed my Intercooler to a custom made ARE brand with better airflow, then installed a massive oil cooler. It's

The Mafia
The Mafia

I have a 55mm PWR twin pass radiator (tanks on the sides).  I had issues with my cooling system. This is how I fixed it. 55mm PWR Radiator, older 80mm Intercooler, 16 row oil cooler, stock N

Posted Images

  • 3 months later...
Predator1 Rising Star

Predator1

Posted
Posted

Its been a while, but after 4 months, my GrA Reimax waterpump has been installed. I also replaced the GKTech fan with a new OEM R32 Fan. Everything else is the way it was prior.

The reason I went all out was to try fix my annoying(picky) ECT creeping up at idle. It def ran cooler. I noticed that the temps would come down ALOT quicker. Cruising temps on the motorway is around 72-74 for ECT, same as my oil. I have seen the temps down to 67 in the arvo a few times while driving too(its summer time here too).

Has the waterpump made a difference? Yes I think so. 

The other day, I took it for a drive on a HOT day(27-28). Felt so much hotter, plus I purposely drove through lots of traffic. Max ECT was 82.

My ECT temps at idle we ALOT more stable. Prior, it would creep from say 78 through to 82~ in say under 2 mins, and my 2200CFM AC Fan would come on at 85 which would struggle to bring it back down.

Now, the fan doesnt come on. Mind you, I now run a sequential box, and have heat wrapped my downpipe soo..I had a habit of coasting it in neutral everytime(Never used engine braking), but now I have to stay in gear and engine brake all the time which will aid in temps as there's no spark when you decel in gear.

Would it have made the same difference without the box and the heat wrapping? I think it would have. It was my idle temps that was the issue for me, and that seems to be much better(Might be too early to say its fixed).

  • Like 1
Link to comment
Share on other sites
Predator1 Rising Star

Predator1

Posted
Posted
20 hours ago, joshuaho96 said:

I wouldn't be all that concerned about coolant temps until 90C but sounds like it worked out for you.

As I said, I was never worried about how high my ECT peaked.. but moreso how fast it creeped. Need to do more testing to conclusively say its a closed book.

Link to comment
Share on other sites
Dose Pipe Sutututu Grand Master

Dose Pipe Sutututu

Posted
Posted
On 25/01/2023 at 9:26 AM, Predator1 said:

I also replaced the GKTech fan with a new OEM R32 Fan.

I feel this is what made the difference, however my thoughts are subjective and not based on any data on Skylines.

(Did have 3x S15s with overheating issues at the track, told all 3x to put back the OEM fan blade and... Yep no more overheating).

  • Like 2
Link to comment
Share on other sites
R3N3 Rising Star

R3N3

Posted
Posted

Yes, I have also heard the gktech fans are not the best. I have just splurged on an FPG unit, so hopefully that works out well..

The only other thing I can think of would be to go to an electric water pump, which would give you full control of flow at any vehicle speed. I see that PRP have a new RB electric pump that has been released. This is the way I would go when my pump needs replacing..

  • Like 1
Link to comment
Share on other sites
The Mafia Grand Master

The Mafia

Posted
  • Author
Posted
On 25/01/2023 at 9:11 AM, joshuaho96 said:

I wouldn't be all that concerned about coolant temps until 90C but sounds like it worked out for you.

90c? 

When racing heavy loaded circuit, I wouldn't lift off until I got to 112 degrees. This was with 600awhp. 

I would ease off at 112c, and it would start dropping back almost immediately. 

90c is nothing. Lots of modern engines run at 100 degrees as standard. 

all the way up to 110 degrees is okay, just start watching it above that. 113c is my hard limit. 

Link to comment
Share on other sites
Dose Pipe Sutututu Grand Master

Dose Pipe Sutututu

Posted
Posted
28 minutes ago, The Mafia said:

90c? 

When racing heavy loaded circuit, I wouldn't lift off until I got to 112 degrees. This was with 600awhp. 

I would ease off at 112c, and it would start dropping back almost immediately. 

90c is nothing. Lots of modern engines run at 100 degrees as standard. 

all the way up to 110 degrees is okay, just start watching it above that. 113c is my hard limit. 

Jono living on the edge haha...

I play it a tiny bit safer, just trim the limiter to tell me the car is getting warm. Ain't nobody got time for gauges when you're racing.

image.thumb.png.3c96a52b934add81af6ef65d8220bc2c.png

Link to comment
Share on other sites
The Mafia Grand Master

The Mafia

Posted
  • Author
Posted
10 minutes ago, Dose Pipe Sutututu said:

Jono living on the edge haha...

I play it a tiny bit safer, just trim the limiter to tell me the car is getting warm. Ain't nobody got time for gauges when you're racing.

image.thumb.png.3c96a52b934add81af6ef65d8220bc2c.png

haha mate, I definitely don't have time for gauges. 

I get a very big red full screen on my dash alerting me when I'm at 112 degrees, it's a bit hard to miss. 

At 113c, it starts to pull the limiter down. 

  • Like 1
Link to comment
Share on other sites
  • 11 months later...
SiR_RB Grand Master

SiR_RB

Posted
Posted

So these pumps have been out for sale now for some years

 

has anyone here used one and whats the comparison to an oem or even n1 unit ?

Link to comment
Share on other sites
  • 3 weeks later...
Predator1 Rising Star

Predator1

Posted
Posted
On 13/01/2024 at 3:57 PM, SiR_RB said:

So these pumps have been out for sale now for some years

 

has anyone here used one and whats the comparison to an oem or even n1 unit ?

I posted one a few replies up. Before I parked her up, I did lots of highway pulls. I def noticed that the ECT was alot more stable. Did lots pulls in high gears to redline and I was def happy. Safe to say my ECT issues were completely fixed.

Link to comment
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
 Share
Go to topic listing


  • Similar Content

  • Latest Posts

    • HYBRID VL
      V37 Alarm settings and what the buttons do.

      By HYBRID VL · Posted

      I have been looking at some setting on the alarms for the Q60 and what buttons do and so and also been looking for details on the alarm in my V37 which is a standard issue with the car. settings like window roll up and a few others seem to not work at all. i cant seem to find exact info on V37 alarms so Q60 is all i can really go off i have not tried 400Z alarm settings or info yet so that will be next. any one got like a sheet of info on the alarm system in the V37 as all my documents are in japanese but i thought the system would basically be like standard through similar models? 
    • r32-25t
      R32 Gtr Long Term Love, Now Project

      By r32-25t · Posted

      I had a fuel smell coming from the drivers rear and pulled the tank out to inspect where it was coming from, turns out the breather hose from the tank to the filler neck was perished. I’m going to Japan next week and I’ll grab it while I’m there  pulled the oil tank apart and started cleaning this crap out of it, some brake cleaner and rags got it looking new again 
    • GTSBoy
      Creative in cabin amp locations

      By GTSBoy · Posted

      Hmm. Was quite a few years ago now. I think I bought from a crowd in the US called CDT Audio. The speaker is the HD-6. The HD-6CF would have been the better option (based on T-S parameters), but they were discontinued in 4 ohm at that point in time. The HD-6 is a better driver in almost every other way (than the CF) - just not as good in IB. They still do the HD-6. They might even have a more suitable (for IB) option here.https://www.cdtaudio.com/cdtnew22/products/components/woofers/midwoofers/midwoofers.htm But, here's the rub. I was working in the US a lot back then, so I got them delivered to my US office and then just brought them back to OZ myself. I don't know if they will ship to OZ, and it probably wouldn't be great cost-wise anyway. As to results. They're driven direct off the rear channels of my headunit, because the headunit can be setup to run the rears as subs. So, not a lot of power being fed there. Nevertheless, there's no shortage of volume - the sub levels don't need or want to be boosted at all. The bass is definitely not what you would call "tight". It is definitely a bit delayed compared to a proper sub. But, with the great front soundstage and really good 6.5" woofers in the front doors, I'm getting most of the bass detail from the front and the rear is really only to extend the bottom end a bit. Works for what I'm doing. I mean - until recently you couldn't really hold a conversation in my car due to the fuel pump, and for many years I had tyres so noisy (Kumho KU36 at <50 tread depth) that I had to drive with earplugs anyway!
    • Ghosty033
      Creative in cabin amp locations

      By Ghosty033 · Posted

      curious to know what drivers you chose and the results? quik mafs, says two 6.5s should roughly equate somewhere between a single 8" or 10" driver. i agree that IB is definitely the way to go in most cars imo.
    • Dose Pipe Sutututu
      Rear suspension upgrades

      By Dose Pipe Sutututu · Posted

      S13 and R32 rear suspension geometry is horrible once you lower it (which everyone does). The camber & toe out ramp is very aggressive, hence it's common for the S13 boys/girls to use a S14 or S15 subframe as the geometry is light years ahead. I'm sure the same can be done on R32s, but I don't know anyone that has done that.
×
×
  • Create New...