Will Using A Custom Alloy Radiator Make It Cooler - as above  

Joyrid3r

are you currently not running any cooling devices?? use some AU falcon thermos at least!

lockdog

yer it has 2 falcon thermos on it

10WRA

how the fuck does the radiator work in the tray???

turbo x-trail

lol are you serious?

How much airflow do you think a radiator has in the tray? fugging lol

10WRA

none cuz its at the back that does not make sense!!

lockdog

have you ever put a plastic bag in the tub of a ute and driven? it doesnt blow out. cause air sucks in. ><

10WRA

interesting, still sounds like a fucked thing to do your rad hoses would have to be long as!!

iamhappy46

You need an electric water pump to actually MOVE the volume and WEIGHT of water you have.

I would also guess that the radiator top tank is mounted higher than the engine but the coolant hoses run under the car right? You know warm water rises, so how is heat expected to 'leave' the engine effectively?

Just get a custom smaller radiator with an intercooler made to suit the space you have in the engine bay... PWR might charge you nearly $2K for it but atleast it will stop your motor from cooking itself...

lockdog

yes it has a water pump and ur correct. ill just cut some thermos in the front of it in the tub.

blacky83

Pics of the setup? Its possible to run the radiator separate from the engine, but the bigger issue will be getting enough airflow through it. Having thermos won't do anything if its located in a dead flow area.

turbo x-trail

You need flow mate, air needs to flow THROUGH the radiator, not just air "sucking" in to it.

Move it to the front, thought that wouldda been a no-brainer?

jebby88

In the tub of the tray? what will this achieve....nothing as said before custom radiator made to fit the sapce you have in your engine bay

Wraith

If it's set up at the right angle for maximum airflow and what not it shouldn't matter. How have you got the radiator positioned?

lockdog

its on a 30 degree angle leaning towards my back window.
u think if i could fit it in the bay i would of. far out.

lockdog

the thermos blow hot air out. i may cute some in the floor to blow up into it

Silver Surfer

Rear mount radiators are not uncommon in the rock crawling/4wd scene. It is mostly used to protect the cooling system from damage. However I have seen it on a few hot rods.

here is a couple of picks I googled

iamhappy46

Your problem is not airflow... its water. The heated water volume needs to move into the radiator as effectively as possible AND take the heat with it. If the water is going to fast or too slow, the radiator does not work as a heat exchanger.

Get me pics of your setup and I can show you how to imrpove on the water flow... if you cant get that right, then a custom radiator even if it is a tiny one in the engine bay will work better than your current setup is the answer.

Oh, to answer your original question... an alloy radiator wont do shit

lockdog

thanks champ il get pics today

JDMexcel.yo

mount it on the side of the tray on the inside, cut a slit down the length of the tray ( guessing its styleside) fab like a hoodscoop looking thing on the side of the tray, so the air catches and is pushed through the cooler and into your tray, and upgrade water pump as someones said.

boost101

71-BEETLE-SEDAN

A radiator will work more effectively if you can get water to flow to it.

VW Beetle owners who have Subaru motors in them run radiators up the front of the car don't over heat.

What are you using as piping? Use something with a high conduction rate, to dissipate as much heat as possible on the way to the rad and this will make it more effective. And make sure you make something to help remove any air from the system, like a bleed nipple at the highest point.

But pics will help a lot more

lagperformance

craig davis electric waterpump used in conjunction with the factory waterpump and the thermo fan controller should see the flow you require and provide better cooling and keep temps around the 80 degree operation temp that u want to be running. A alloy custom radiator would provide better cooling but bang for buck get the electric water pump to increase flow

lockdog

heres pic. i have a plastic water pump under the cover on the left hand side. im not sure if theres better pumps i can get ect. lines run under my ute to the engine in high pressure water hose. (same as is on pumps like pump out trucks. thick solid stuff.)

Riverside

There is no reason you couldn't fit it in the engine bay, has been done dozens of times before, then you wouldn't have this headfuck of a problem.

lockdog

i only have about an inch gap between my intercooler and engine. if i wanted it in the front i would have to cut the front bar and have the intercooler hanging out the front. which i dont want.

lockdog

like here

luis6268

Interesting, still sounds like a fucked thing to do your rad hoses would have to be long as!!
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Zoladex
Zoladex

Riverside

Is that a custom upper rad support in that pic?

I am confused, you don't mind having a piece of SHS steel as your rad support but don't want your cooler visible?

I stand by my previous statement, there is plenty of room without having to chop the hell out of your front bar. It just takes some thought and planning, combined with a tad more effort. (Less effort than the funky ass system you currently have)

Timmyp34

make a top or side mount intercooler fit?

moose84

setup it up like this.... with eletric pumps... plenty of air flow... problem solved

Timmyp34

i think the 1j been thrashed would be running alot hotter than a 4WD going around a few small tracks

bloodzkull

you would be suprised.

iamhappy46

A 20mm thick radiator would still do a better job cooling your engine than the current setup.

Oh, the problem is also in your coolant hoses... dont use rubber over such a long distance. Alloy pipe from the bellhousing back to the tray is a MUS as it it will cavitate the water.