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What Size Is Fmic Cooler Piping On A Standard Kit ?

Munkyb0y

By Munkyb0y,
in Engines & Forced Induction

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Munkyb0y Grand Master

Munkyb0y

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I was under the impression that the stock cooler piping was 2.5 inch ID (63mm).

I got a piping kit for an fmic, and measured the piping to be 2.25 inch ID (~57mm)

I thought this might be the wrong kit, so i measured my stock 33 smic inlets, and the leftover pipes from the R34smic upgrade. They measure 2.25 inch ID.

So, what size cooler piping is normal for the fmic kit for R33? Has anyone bothered to measure? Or just assume, as I did, that its 2.5 inch?

STATUS Grand Master

STATUS

Posted
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the hot side is often smaller than std but the cooler side is larger. i know on the big sr20 kits (like on our car previous) the hot side is usually around 57mm and the cool side is 70 or 80mm depending on kit.

Munkyb0y Grand Master

Munkyb0y

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its the just jap type 2 kit. it's supposed to be tube and fin, but i have a feeling they gave me the wrong cooler. looks like bar and plate to me. and also measures 600x280. i'm currently waiting for a reply about that. here are pics of the cooler they gave me

the piping comes in a seperate box, and it looks to be the correct shape for R33. but the diameter threw me off. after measuring my stock pipes, i'm not sure what size its supposed to be now. has anyone actually measured theirs?

Munkyb0y Grand Master

Munkyb0y

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yeah the piping kit looks correct for r33. i havent tried fitting anything yet, but it's basically the same shape as the others ive seen.

i just spoke to just jap, and they told me the piping kit is 2.25 on the type 2 (greddy copy) in keeping with the stock piping size.

they also said the new type 2 coolers are all bar and plate. they found a tube and fin in stock for me to pick up.

ive always assumed tube and fin flow better, less restriction, but cool less than bar and plate. is this right? coz now i'm getting conflicting info.

RBwhatever Veteran

RBwhatever

Posted
Posted

Yeah thats the general consensus between the 2.

I opted for the bar and plate. I'm using the stock turbo, as if flow is going to be hugely affected on the low flow a stocker pushes. Plus I'd rather have the better cooling side of things. Up to you really.

STATUS Grand Master

STATUS

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Posted
ive always assumed tube and fin flow better, less restriction, but cool less than bar and plate. is this right? coz now i'm getting conflicting info.

Other way round. bar and plate is cheap to make and hence is used more here in these types of kits.... all the better cores are a tube and fin type design.

Munkyb0y Grand Master

Munkyb0y

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so tube and fin would be a better choice? coz thats what i was going with

nissan smic's and gtr coolers are tube and fin. as well as the hks etc.

Edited by Munkyb0y
Munkyb0y Grand Master

Munkyb0y

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:) yes i see

well i measured my stock cooler piping. the one that joins to the standard crossover pipe. it seems to be 2.25 inch.

so i guess the same size (2.25") fmic piping on a stock turbo setup is probably the way to go.

Munkyb0y Grand Master

Munkyb0y

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updated the link with pics of the tube and fin cooler from just jap.

http://tony.ikkon.com.au/fmic/ - (scroll down for tube and fin)

looks ok to me. what do you think?

Edited by Munkyb0y
  • 1 month later...
Munkyb0y Grand Master

Munkyb0y

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fitted the cooler. drives nice. no added lag. still as responsive. feels like it pulls a bit harder.

i'm thinking it'll benefit from another tune. what do you guys think?

here's how it turned out.

post-29392-1197430267_thumb.jpg post-29392-1197430284_thumb.jpg

Munkyb0y Grand Master

Munkyb0y

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thanks man :(

the reo bar was easy. i just cut 2 small wedges out of each side of the bottom section. after i sprayed it black, you wouldnt even notice it's been cut.

the front bar needed a bit more attention around the cooler piping, but all in all, it was just a matter of patience.

Edited by Munkyb0y
Munkyb0y Grand Master

Munkyb0y

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lol. depends on the bar too i guess. does yours have a huge opening for the cooler? also, i hung my cooler from a single bracket in the centre, off my radiator support. the ones with the 2 mounting points that bolt up to the reo, sit alot more forward, so would require alot more cutting of the reo bar.

i managed to squeeze a cold air intake pipe just above the cooler piping in the passenger side opening (it's the blue rectangle-ish thing). i wish there was more room, but thats all i've got to work with there.

better than nothing i guess.

post-29392-1197602578_thumb.jpg

Edited by Munkyb0y

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