S2 Stagea Radiator Blocked

[psi]

Like the post says..

3intheback has a S2 that has got a cronic problem. It is jammed up good and proper. We placed the header tank on my manual S1 R33 and guess what.. they are the same! Same part numbers and all.

I did notice that my skyline core is thicker than the stagea by a few mm. So, we are thinking of swapping his tanks onto a secondhand R33 core.

So now we both have a few Q's:

1: can the core be interchanged between the two cars? We are thinking so..

2: due to the age of the older core, should we swap it?

3: why did nissan go to a smaller radiator in the later car that produces MORE horsepower AND has a transcooler in it?

Anybody tried this or have any idea's?

[fergo308]

1. yes,they're interchangeable. any new R33/34 radiator will fit in,try your local performance shop,ebay,just jap etc.

2. I'd go for a newer core over an older one myself,but a 2nd hand unit will get you out of trouble now.

3. simple answer - emissions. faster warmup to operating temp means better overall emissions levels as the engine is warm and running proper fuel mixtures faster.

Justin...

[psi]

no:3, that makes perfect sence! I didn't think of it like that.

Now that is all making sense, think we'll order the 33 core (we live in the tropics, and warm up is not such an issue!)

Cheers