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The mkiv Supra Owners Club

Thick / Thin versions of the factory radiator?


Ark

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I've been told that there are two thickness's of factory radiator, and I have the thin one. Does anyone have a definite line on this?

Also:

- How much thicker is the thick one?

- Why do facelifts seem to get the thin one as standard?

- Does the facelift fan-shroud fit the thicker radiator?

- Will the thicker radiator fit with the pipework from a Greddy 3 row intercooler?

- Part numbers?

 

Thanks!

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I have the thin one, but didn't realise until I tried to fit the thicker one. Facelift TTs and I believe ALL NAs has the thinner rad - usually.

 

The difference is maybe 1~2cm.

 

The fan + shroud attachments have different mating points and one won't fit the other without modifications & compromise. I can't answer your intercooler or part number questions though, sorry. Chris Wilson usually has some of each type - that's who I got mine from. :)

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From what I've seen:

 

NA's and facelift TT's came with the thin radiator

Pre-facelift TT's come with the thick radiator

 

Not sure if it's really that simple, but it seems to be consistent on the cars I've checked this on (edit, just seen Steve's post which seems to agree!)

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Thanks for the thoughts so far - this has come up because I'm fitting a fluidyne (about 2 cms thicker), and the fitment quality is shit. I was assured that it would fit together with the throttle pipe from the Greddy and my fan shroud, but no. And it won't take the air-snorkel thing from the stock airbox without fabricating a bracket. So exasperating.

 

The only way I can get everything together is without the fan shroud, and right now I'm thinking of pulling the whole thing out and using a thick Toyota original...but then I have to use an old style single electric fan shroud, rather than the twin fan facelift version, and I've still got no guaranteed fit! In the meantime, I think I'm going to run without the shroud or electric fans and monitor the performance, before regrouping and coming up with a new plan. I thought that since the 2 electric fans are thermostatically controlled and switched off most of the time, half the rad surface area is pretty much blocked, so maybe opening all that up will be better...

 

Oh, and why haven't I seen that website before? It's about a billion times easier than messing with the old "EPC for windows 98"!!

Edited by Ark (see edit history)
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