What are these plastic spirals in my new radiator? - R3VLimited Forums

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MC Hammered

R3VLimited

Join Date: Jul 2008

Posts: 2076
#1

What are these plastic spirals in my new radiator?

09-28-2012, 05:56 PM

New Behr radiator arrived today and when I peek inside of it each rung has one of these plastic twisted spirals in it.

So can anyone tell me why they are in there and what purpose they serve before I pour coolant into the radiator?

TIA for any information

My 1989 e30 s52 Touring... this is Betty

My 1989 325i vert (sold)...this is Nina

My 1991 M5 (sold)... this is Veronica

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TobyB

R3V Elite

Join Date: Oct 2011

Posts: 4906
#2

09-28-2012, 11:54 PM

Turbulators.

Or packing material.

t

now, sometimes I just mess with people. It's more entertaining that way. george graves
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Hey_You

E30 Modder

Join Date: Nov 2009

Posts: 963
#3

09-29-2012, 10:35 AM

Vortex generators, makes you coolant flow faster!

85' 318i ~The Bronze Bomber (FrankenM10 with a Forced Future :wgaf:)
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jeffnhiscars

R3V OG

Join Date: Jun 2011

Posts: 6009
#4

09-29-2012, 02:41 PM

Looks like fusilli. Cooks while you drive.

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dogsbark26

E30 Addict

Join Date: Nov 2008

Posts: 533
#5

09-30-2012, 10:03 AM

I've never seen anything like that before.
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Jaxx_

E30 Mastermind

Join Date: Dec 2009

Posts: 1880
#6

10-01-2012, 11:31 AM

I have them in my radiator too. It's for evening out load as well as surface area optimization, I'd guess.

'84 318i M10B18 147- Safari Beige
NA: 93whp/90ftlbs, MS2E w/ LC, 2-Step
Turbo: 221whp/214ftlbs, MS3x flex @ 17psi
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cabriodster87

E30 Enthusiast

Join Date: Jan 2011

Posts: 1042
#7

10-01-2012, 12:59 PM

Seen them made of aluminum in my old 318i, things get stuck in the twists.

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Reich und Roll!
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dogsbark26

E30 Addict

Join Date: Nov 2008

Posts: 533
#8

10-01-2012, 01:24 PM

This creates turbulence in the tubes, exposing more coolant to the radiator tube walls and improving heat transfer.

Car Craft, February, 2009
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