View Full Version : Radiator Options

03-12-19, 11:22 AM

I have noticed on a couple of occasions that there has been some nice looking alloy radiators suggested for various applications on this forum but as I think they were hidden within other threads it may be difficult to search out.

So I thought a general collective of offerings as a thread may be a good idea. Possibly a useful sticky?

Anyway, my current one off Cobra build is at the stage of planning a radiator. I have a fairly open space but it is a bit too narrow for the ASM type we use.
As I mentioned, there have been a couple of nice options including fans, shrouds etc. I didn't really see the point in setting up a design for a one off if something else would work well.

So if you could list your suggestions preferably with dimensions that would be great.



03-12-19, 11:37 AM
The Nissan 200SX radiator comes up a lot - I think that's the S14/S15 item rather than S13: https://www.ebay.co.uk/itm/45mm-CORE-HIGH-FLOW-ALLOY-RADIATOR-DRIFT-RAD-FOR-NISSAN-S14-S14A-200SX-SR20DET/351976100774
Size is 670x505mm according to that listing - I think that includes mounting lugs, though.
Readily available with shrouds, too: https://www.ebay.co.uk/itm/3-Row-Radiator-Shroud-Fan-For-Nissan-Silvia-200SX-S14-S15-SR20DET-1993-2002-MT/233281252080

Looks like the S13 rad (for SR20DET engines) is damn near identical: https://www.ebay.co.uk/itm/3ROWS-52MM-ALLOY-ALUMINUM-RACE-RADIATOR-For-1989-1994-NISSAN-180SX-S13-SR20DET/254268807201

But avoid the S13 CA18DET radiator as the inlet & outlet are on the same side (the right) rather than opposing - unless that helps in your application, of course.

[edit] If I remember, I'll measure the 'hole' it goes into on the Dax later.. I'm half tempted to change the Dax radiator to the shrouded 3-row above..

03-12-19, 01:36 PM
I've got my eye on those shrouded with fans ones too.
just need to measure available space in the Hawk.

Happy Jim
03-12-19, 05:36 PM
Somebody PM me please if they think there is enough material for a sticky. Otherwise I may miss it



03-12-19, 08:19 PM
as above, S14 - 200sx Nissan is the one used by quite a few on here.

I'd originally bought one to replace my SD1 rad but found there was going to be to much work needed to make it fit the SR - mods and welding to rad cradle needed or new cradle design needed. As i can't weld, i didn't fit it in the end, but the weight different (even with the twin fans and ally shroud fitted was significant :)

picture of rad i purchased


A man of your many talents Andy you shouldn't have an issue sorting the fitment out - especially if you weld ally - may be needed to remove the rad filler on the top part of the radiator - it hit the body shell or was very close of the SR cobra.

Couple of thread links:



03-12-19, 08:57 PM

Some good info there. The ebay link has yielded some interesting stuff.
So out with the tape measure tomorrow.
These are approaching half of the cost of our custom jobs for the ASM but of course we are hardly a volume customer.

My 289 build is accommodating Audi v8 with custom chassis. I currently have plenty of scope for radiator shape. It is actually the pipe routing which tricky because the engine is so wide and the pipes emerge from the back and side of the engine.

Anyway, thanks for the links.


mark chambers
03-12-19, 10:28 PM
I’ll also measure and double check but I’m sure that I fitted the Nissan one to my Dax I’ll try and send you some pics and dims.

04-12-19, 09:13 AM
The 200SX radiator definitely fits in a Dax. I fitted one in my De-Dion. It's a bit of a tight squeeze but it means i get as much radiator surface area as possible exposed to the cool air.

Gatwick Axe Man
04-12-19, 10:31 AM
Yep, one of them!

67 cm left to right (as you look at it).
47 cm top to bottom (NOT including filler cap).
+3 cm for filler cap (50 cm top to bottom total).
6.5 cm deep (5 cm core).

Pictures (hopefully) my own bracketry, bolts need trimming and the whole thing needs a coat of paint. Watch for the top outlet had to make a cutout for this (see pictures).


Gatwick Axe Man
04-12-19, 10:36 AM
A couple more.


04-12-19, 11:59 AM
What gauge and material are your brackets made from ? I have a Ford so my inlet and outlets are swapped. The S14 - 200sx Nissan is the one for Chevy engines. Make sure you go for the 52mm thick 3 row.
The radiator should be mounted on rubber fixings. I have been looking at rubber mounts and they seem to be expensive at £26 two pairs of grommets .

Gatwick Axe Man
04-12-19, 02:53 PM
50mm x 5mm x 600mm across the back, https://www.metalmaniauk.com/Steel/Black-Flat-Bar/Black-Flat-steel-strip-50mm-x-5mm.aspx cut to size £4.90 exc VAT.

50mm x 3mm x 1500mm for everything else, https://www.metalmaniauk.com/Steel/Black-Flat-Bar/Black-Flat-steel-strip-50mm-x-3mm.aspx £6.25 exc VAT.

And a bunch of theses from Rimmer Bros', https://rimmerbros.com/Item--i-572312A, 60p each including VAT, perfect fit for the pegs.

Plus a few days sodding around to get everything to line up and get the radiator to lean back a touch and whatsit's your Uncles fanny. Couple of coats of Hammerite and Job done.

On to moving the engine!


04-12-19, 03:23 PM
Fibet have a wide range of rubber mounts.


I have no idea if they are competitive on price mind you. I have used them for engine mounts though and they are very helpful.


04-12-19, 05:15 PM
Thanks Graham,

The steel bar looks ideal for mounting and the rubber mounts.


Fibet look an interesting company. They have a lot of different options.


Gatwick Axe Man
04-12-19, 05:22 PM
Any issues using the engine mounts, thinking along the lines of torque during acceleration and deceleration and the like? There are a few on there that would work better with the bracket mods' I have in mind.


07-12-19, 08:20 PM
The bottom outlet may only be 35 mm, going to around 45mm OD to the US water pumps inlets, is there a flow issue there or simply just reducers required etc?

08-12-19, 10:50 AM
I've not had any flow issues with that setup, just use a reducer.
I've had two of those rads in different cars.

08-12-19, 04:35 PM
Go for quality silicone hoses as the first hose reducer I purchased was poorly finished. My original supplier did not have the reducer in stock at the time.

The new supplier was advertised as quality and manufactured in the U.K..

I was very disappointed with the quality. A noticeable step inside at the reduction point and the wall thickness was linear so clamping would of been a problem. So buyer be ware.

I ended up with ASAP hoses and was very happy with the quality and used Mikalor stainless clamps.