GQ 4.2 Turbo Radiator

[ChristoSlang]

Chuck does the same thing - give him a long uphill and the temps go through the roof (even though the EGT remains well within bounds)...

[Peter Connan]

I have just had a custom radiator built for my Trollie as well.

Proper copper-core, copper-tanked unit using only the original top and bottom plates that incorporate the mounting points for the radiator and fan shroud and mimicking the existing piping exactly, so that it's a straight fit with no mods. The core is now as thick as the tanks at 47mm, the original was probaly only 30-35mm so it should be a fair amount more effective. I had the air conditioner's condesor cleaned and combed as well.

Work was done by Thermo Radiators in Jet Park for a total of R3172.00 including vat.

I have yet to test it properly, I only got it back on Friday evening (they delivered it to my house for no additional charge), and yesterday was a cold day. Oh and my immobiliser has packed up, preventing the alternator from charging...

Thanks to Dolf who put me onto Thermo Radiators.

[Andre Steyn]

I'm having a aluminum radiator built for mine 4.2 seeing that the heads gone and I want to turbo it. I'm using a Mercedes axor truck radiator core its going to be 500mm from top to bottom and 900mm side to side and 52wide with the tanks on the side and I'm changing it from a 0.9 system to a 1.2 with a pressure bottle and basically 2 extra pipes. Should keep things perfectly cool. Seems with age the aluminum fins get flattened and block the air flow. I'd strongly recommend having a look at the aircon condenser too.

[davejones]

Digging up this thread too.

Grant seeing as i will be taking my troll to SAC Centurion, and having quite a bit of work done, i definitely need to upgrade my radiator. Temps got dangerously high over the holidays... to the extent i want to get pressure tests done, just for peace of mind.

Do you mind sharing what your radiator set you back? Need to budget carefully for this service!

Cheers

Dave

[ricster]

Dave, Grant isn't on the forums as much as he used to be ( work commitments and traveling overseas). I do know it was not a cheap radiator. I think on the same post there are some pics of my radiator. I was told that mine came from a Cabstar truck. The thickness is about double of the std radiator. My EGT gauge only tells me EGT's and cylinder head temps and unfortunately not water temps like the Madman does, but my dash temp gauge is always just to the left of center, even when working the motor up long hills, and pushing high-ish EGT's.

The fitting of this radiator looks almost identical, hoses are in the same place, fan cowl fits perfectly. Getting a secondhand ( tested )radiator may be a cheaper option.

Check with Silverton Radiators on what they would charge you to build a new one or modify one to suit.

[davejones]

Thanks Cedric.. I'm unfortunately not in the business of or have the resources to search for good condition second hand spares... But will end up somewhere between Peter and Grants set up I'm sure. Taken the morning off to renew licenses etc in Marlboro so will be stopping by silverton wynberg, also sorting out alternator and batteries today, time permitting!

[Tinus lotz]

Just speak to Pieter C I gave him the no of a place in jhb that had new radiators for 4.8 4.5 and 4.2 diesels for about 2 k will follow up from Jacobez if you are keen?????

[davejones]

Peter are you happy with your radiator since it being built and fitted?

Cheers

[Peter Connan]

David, I am happy with the ratiator, it is well made and fits 100%.

[caz]

Grant just be sure you earth that new copper radiator and do a voltage check between the battery negative and the coolant, could save you a lot of hassle.