Rb26 Vs Rb25 Clutch Fans

[works 510]

Hey,

Trying to keep temps down so would like to try a stock fan from a rb25 or rb26.

Currently have 2x 12" elec fans on a cheap alloy radiator, after i few hard mashes of the throttle, temp slowly rises.

Now,

Im just wondering what the differences between the two are?

I mainly interested in how far the fan protudes off the motor (i have minimal room between motor and radiator)

But any experiences with either fans accepted.

Thanks,

Dan

[bubba]

It will be the cheap ally radiator mate, I replaced mine with a stock GTR radiator and never looked back.

I was also running 2x thermo fans on the front (no aircon) as well as the engine fan.

Sorry, can't help with fan differences.

[works 510]

Bubba,

cool mate cheers for the info

All info and suggestions welcome.

[DVS JEZ]

What sort of power level.

How high are the temps getting

[works 510]

395rwkw

was going just over 100,

temp was clearly climbing after each short hit of the throttle.

Edited January 1, 2012 by works 510

[bubba]

I found the cheap ally rad just heatsoaked horribly, after about 20mins on the highway the temp would start steadily climbing. Burnouts would get it hot enough to spit coolant everywhere.. put the GTR rad in and I could drop a 1-2min skid without throwing any coolant, temp never got over 105deg and would cool off reasonably quickly.

Something I have noticed with the newer engine fans is the blade count and design, must have been done for a reason

Just a thought.. what water pump are you running?

[works 510]

waterpump is a new generic brand I had lying around.

How does a N1 waterpump differ to the rest?

edit, nevermind, currently googling

Edited January 1, 2012 by works 510

[bubba]

Could be a crappy blade design on the generic water pump but my money is still on the radiator

As you've probably found the N1 is designed for sustained high rpm (7000rpm+)

[Piggaz]

Stock pump for a road car. N1 pump = issues.

[Bond]

Does the rb26 rad bolt straight up for an rb25 (r33)

[bubba]

33gtr rad should drop straight into a manual 33gtst

[BLITZ-26]

i have a cheap alloy rad on mine no over heating issues, it dropped the temps and i had a GTR rad in there with 2 fans on the front, i still havnt put the shroud on either and its still sits below stock...... on another note my mate just had a similar problem for the last cupple of weeks wouldnt run right on startup sometimes and then slight heat issues at the track similar to your problem needless the say cyc 5 filled with coolant at the last track day so early days but dont rule out a head gasket issue

[Bond]

What cheap alloy rad do you have?

[works 510]

to be honest, im not sure,

It may be a 'asi' one.

As for N1 pump not flowing low rpm driving, it rarely gets driven on the street.

[Kris..]

the radiator is a 42mm ISC item

bled it properly?

[works 510]

knew you would be around.

yes sir, system bled.

I dont have a oil cooler on it yet, also could be contributing.

[Kris..]

id imagine so because dont they sort of cool each other.........so if you can drop oil temps then it will in turn drop water temps aswel

[CrimsonLey]

I wanna see where this goes. I experience occasional overheating in traffic.

Found this:

http://forums.nicoclub.com/omg-my-rb-is-overheating-writeup-t262601.html

I have a built RB26 in my GTT. Does anyone know if the stock clutch fan for a RB26 will fit?

[T04GTR]

FIT THE STANDARD FAN (the stock fAN AT 1500RPM WILL MOVE DOUBLE THE AIR ANY ELECTRIC FAN WILL.

same height.

32 gtr is straight blade and noisy. 33 and on is better.

[FineLine]

FIT THE STANDARD FAN (the stock fAN AT 1500RPM WILL MOVE DOUBLE THE AIR ANY ELECTRIC FAN WILL.

same height.

32 gtr is straight blade and noisy. 33 and on is better.

This man speaketh the truth.

The stock fan will blow a veritable hurricane through your engine bay compared to thermos.

Been there done that.