Jump to content
SAU Community

Recommended Posts

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 N1 water pump.
6 laps, water temp at 112, had to back off. 

55mm PWR radiator, new A.R.E Intercooler, larger, more airflow, 16 row oil cooler, stock N1 water pump.
6 laps, water temp at 104, but still rising. 

55mm PWR radiator, new A.R.E Intercooler that is larger and more airflow, massive 900 x 300 Oil cooler, dry sump. 
6 laps. Water temp at 85 and holding. Oil temp barely 85 degrees. 


If you are having heating issues, a few things I have noticed:

- Intercoolers sometimes block the airflow to the radiator - Get a better one. Larger area, wider spacing
- Oil coolers - the bigger the better. Takes heaps of load away from the engine coolant system
- Vacuum on the radiator outlet. 



 

  • Like 3
2 hours ago, The Mafia said:

Oil coolers - the bigger the better. Takes heaps of load away from the engine coolant system

Same experience here too, went from a 19 row Mocal core (sandwiched between FMIC & A/C condenser) to a 25 row Setrab cooler in the driverside front duct/bar area.

Water temp never got past high 90s on a warm day at Wakefield Park doing at least 6~8 hot laps per session (until the tyres gave way). Oil temperature would have been max 110.

3 hours ago, Dose Pipe Sutututu said:

Same experience here too, went from a 19 row Mocal core (sandwiched between FMIC & A/C condenser) to a 25 row Setrab cooler in the driverside front duct/bar area.

Water temp never got past high 90s on a warm day at Wakefield Park doing at least 6~8 hot laps per session (until the tyres gave way). Oil temperature would have been max 110.

How much power is this? I'm fatally attracted to stupid JDM nonsense so I got an HKS 15 row oil cooler and I'm wondering now if that's really not going to be enough even at 300 kW to the wheels.

4 hours ago, joshuaho96 said:

How much power is this? I'm fatally attracted to stupid JDM nonsense so I got an HKS 15 row oil cooler and I'm wondering now if that's really not going to be enough even at 300 kW to the wheels.

At the time 407kW at the rear wheels.

  • 2 weeks later...

Right, so we swapped the water pumps. Haven't started it as doing other work, so it will be a few weeks, but this is the pump that came out of my motor, 8 blade Nissan. 

You can see the size difference. We measured the internal housing dimensions and they are identical. Fingers crossed this puppy lives up to its hype.

 

IMG_2795.JPEG

IMG_2794.JPEG

  • Like 2
On 19/09/2022 at 1:04 PM, The Mafia said:

If you are having heating issues, a few things I have noticed:

- Intercoolers sometimes block the airflow to the radiator - Get a better one. Larger area, wider spacing
- Oil coolers - the bigger the better. Takes heaps of load away from the engine coolant system
- Vacuum on the radiator outlet. 



 

What do you mean by that?

1 hour ago, Predator1 said:

Right, so we swapped the water pumps. Haven't started it as doing other work, so it will be a few weeks, but this is the pump that came out of my motor, 8 blade Nissan. 

You can see the size difference. We measured the internal housing dimensions and they are identical. Fingers crossed this puppy lives up to its hype.

 Looking at that, it's going to flow more for sure. 

Be really interesting to see what the HP cost of it is at higher rpm. 

 

Please do report back how it goes. 

1 hour ago, Butters said:

Be really interesting to see what the HP cost of it is at higher rpm.

Water flow rate is controlled by the thermostat. So, despite the higher maximum capacity of the pump, the actual operating capacity will be whatever the flowrate that is required to achieve the cooling determined by the water temp at the thermostat. Pump power is proportional to both mass flow rate and pressure rise. Assuming that the pump ends up making a bit more head against the restriction caused by the thermostat, then the power rise will only be because of that additional (wasted) pressure and not from any extra flow.

  • Like 1
On 10/1/2022 at 9:40 AM, Predator1 said:

Right, so we swapped the water pumps. Haven't started it as doing other work, so it will be a few weeks, but this is the pump that came out of my motor, 8 blade Nissan. 

You can see the size difference. We measured the internal housing dimensions and they are identical. Fingers crossed this puppy lives up to its hype.

 

IMG_2795.JPEG

IMG_2794.JPEG

Sweet !

 

let us know how you go with before and after results please !

2 hours ago, SiR_RB said:

Just saw reimax has 2 types of rb high flow water pumps 

 

the normal high flow pumps which flows around 220L/M

 

and a group A water pump which flows 250L/M

 

 

Yep thats it. OEM flows around 160lph, but I've never been able to figure out how the testing is done.. ie at what revs etc.

35 minutes ago, r32-25t said:

I thought the issue was the normal pump cavitates and that was the reason why they made the n1 pump which flows less to prevent it. 

 

35 minutes ago, r32-25t said:

I thought the issue was the normal pump cavitates and that was the reason why they made the n1 pump which flows less to prevent it. 

The n1 flows more according to the above flow rates + anti cavitation plate 

2 minutes ago, GTSBoy said:

Average over what? Time? Rev range? Ignoring the dictates of the thermostat? Exactly what do you mean?

Meaning that it just flows more overall. Flows more at low RPM, flows more at mid RPM, flows more at high RPM? It just generally looks like a bigger pump. 

Obviously when you need the extra cooling. 

 

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

    • PayPal is a safe, online payment system that enables businesses and individuals to safely send and receive money, making it an indispensable tool in both personal and professional contexts. However, many users wonder how to send money on PayPal? Don't be alarmed if PayPal is new to you - all the steps can be found by visiting merchant sites with links marked "Pay or send money". Once clicked, select payment method, amount, and add message or note for recipient(s). Upon successful transaction completion you will receive an email containing details of transaction. Let’s start by understanding how PayPal works, how money transfers from banks to PayPal and using various payment methods. Moreover, to transfer money between PayPal and bank, head to the Wallet section and click "Add Account", selecting either "Transfer within seconds with debit" or "Transfer between 3-5 days with bank", and following any instructions shown on screen until completed successfully.   How to Send Money Over PayPal: The Basics Before sending money through PayPal, first create an account. Here is how to set-up a PayPal account: ·         Click “Sign Up” on either the PayPal website or app to enter your basic information such as email address or name into their system. ·         Link your bank account, debit card or credit card directly with PayPal so you can fund transactions directly using these accounts. ·         Verifying your PayPal account will enable you to send and receive more funds. Typically, PayPal requires that you verify your credit card or bank account by making small deposits into it. ·         Once your PayPal account has been established, you can send money through it.   How Do I Send Money to Someone on PayPal? After creating a PayPal account, you can easily send money through it. Here is how to send money to someone on PayPal: ·         First of all log into your PayPal account ·         Once on your dashboard, click on "Send & Request Tab." ·         After this enter the recipient's email or mobile phone number. ·         Enter the amount you wish to send to someone. ·         At last, recheck all the details and click "Send Payment" to complete your transaction if everything looks in order.   How Can I Send Money PayPal for Goods and Services? PayPal provides a safe method for individuals and businesses alike to transfer funds online, both personally and commercially. When paying for goods or services there are additional protections in place both for buyers and sellers. PayPal Buyer Protection offers you peace of mind when paying for products or services with PayPal. In the unlikely event that there is an issue with a transaction, if there are any discrepancies you may dispute it and be eligible for a possible refund. You need to follow the same steps to send money, but select Paying for Services or Goods when prompted. In fact, this extra layer of protection will keep your account safe from fraudulent attacks.   How to Transfer Money to PayPal from Bank? Here is how to transfer money from PayPal from bank: ·         Log into PayPal using either its app or website. ·         Click "Add Funds" in the Wallet section, and add money directly from your bank to your PayPal account. ·         If you have linked your bank account with PayPal, select it under Funding options to select it as your funding option. ·         Enter the amount you would like to transfer to PayPal from your bank balance. ·         Click Add Funds. It typically takes several days for funds to arrive on your PayPal account.   FAQ How can I send money PayPal? Log into your PayPal account, select "Send and Request," enter in your recipient's phone number or email address, select the amount due, payment method of choice and click on "Send Now" - quickly and safely sending money via PayPal is now an efficient method of money transfers!   How do I transfer money to PayPal from a bank? Log into PayPal and select "Add Funds" to transfer money from your bank to PayPal. Select your account number, input an amount, and confirm it. Though the transfer may take up to several days for completion.   How do you send money to someone on PayPal? Simply log into your PayPal account, select "Send and Request", enter the recipient's phone number or email address, select the amount to send, and click "Send Now".   How can I receive payment through PayPal? Senders can easily accept payments with PayPal by providing your PayPal email address and being notified via email when a payment has been completed. When funds appear in your PayPal account, they will appear instantly!
    • At least yours have parkour down pat. One of mine will still trip over his own shadow and fall over... He's a special type of cat... Ha ha ha
    • The question then becomes - was there any fluid coming from that hole before you did the rebuild ?    You may not have noticed, of course.   Depending on how you did the rebuild, the possibility has to be considered that somehow (cleaning ?)  fluid entered that hole and is now being 'forced'  out by small movements of the proportioning valve.   From the factory, there's actually a small rubber plug in that hole but with age and under-bonnet heat it's quite common for it to 'go missing'.  That rubber plug is designed to allow the venting process but also to prevent 'stuff' getting to the area (prevent corrosion, etc).   The plug is also not available as a spare part AFAIA. Personally I wouldn't race and buy a new master just yet but keep an eye on the area to see if the 'leak' continues.   If you're concerned about brake fluid damaging nearby paintwork, cable tie a piece of suitable absorbant material over the hole and remove/monitor occasionally.    Operation of the proportioning valve and the brake master itself won't be affected, but also keep an eye on brake fluid level, of course. In terms of a new master, the genuine part is getting expensive, unfortunately.  Amayama is showing AUD900+.   I was searching recently and there's an aftermarket part available from Japan made by 'Parts Assist': https://zenmarket.jp/en/yahoo.aspx?q=BNR32%2bBM50&p=1 Whether it's any good I have no idea, although in my experience Japanese aftermarket stuff is pretty good quality-wise.   The above site allows overseas buyers to purchase stuff more easily from Japan but there are fees and shipping costs, of course.   The original Japanese seller page is here: https://auctions.yahoo.co.jp/jp/auction/p1197401228 Copper/Nickel is fine but I still prefer bundy tube and it's also cheaper.
    • Your chihuahuas look weird!
×
×
  • Create New...