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E46 M3 (2001-2006) Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006.


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Old Mon, Mar-13-2017, 02:21:34 AM   #11
WOLFN8TR
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Default Re: Koyorad Radiator

Ok Thanks...
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Old Mon, Mar-13-2017, 03:58:20 PM   #12
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Default Re: Koyorad Radiator

I was looking for some spec's... here's a copy/past

Quote:
Koyorad is pleased to introduce a high quality direct replacement all aluminum performance radiator for 2001 through 2006 BMW M3 E46 chassis. This application features Koyorad's “HH Series” high density, two row 48mm radiator core which was developed to increase coolant volume, promote proper air flow and coolant circulation. In typical fashion, Koyorad has engineered this radiator with precision, directly replacing the stock OEM plastic/aluminum radiator and will bolt easily to the factory equipped fan shroud for a quick and simple installation. Koyorad’s superior quality, precision hand welds, reliability and uniformity are what have earned Koyorad their excellent reputation in performance cooling worldwide.

All radiators are fully polished to a mirror finish. Each feature the following:

- Provides 20% to 30% more cooling than standard radiators
- Handles high revving, high performance motors
- Perfect for Turbocharged, Supercharged & Nitrous Oxide equipped engines
- Made from aircraft quality aluminum and Heli-arc welded, cores are NOCOLOK-brazed (no epoxy)
- Koyo is on the cutting edge of technology and design with Japan's largest automobile manufacture
- Custom built OEM fit - All radiator cores and tanks are specifically designed and built for each application. No universal fit parts are used. This ensures proper fit, just like your original equipment! Koyo builds radiators to fit today's most popular import performance cars.
I'm curious how this core design holds up in heat... time will tell. The market's so flooded now with all aluminum options.


Quote:
Originally Posted by mdavidm3 View Post
looking at the picture it does look thicker than OEM. Just like CSF, Mishi, ect.
Is Mishimoto thicker then stock? Says it fits with most S/C options... this would lead me to think it's close to OE spec.

Bimmerworld/C&R is a much thicker core... if/when I go S/C I'll need to swap this out.
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Old Mon, Mar-13-2017, 11:22:47 PM   #13
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Default Re: Koyorad Radiator

Another happy Koyorad user here too. I've had mine in for over a year without a single hiccup. Highly recommended.
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Old Mon, Mar-13-2017, 11:36:19 PM   #14
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Default Re: Koyorad Radiator

Looked like the same thickness to me, I checked with the company before I bought it and they said it fits 6spd and SMG cars.
Mike
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Old Mon, Mar-13-2017, 11:40:23 PM   #15
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Default Koyorad Radiator

Quote:
Originally Posted by Treflip View Post
Another happy Koyorad user here too. I've had mine in for over a year without a single hiccup. Highly recommended.
I did read your thread and seen when you installed it. Nice M3 by the way!

Can you confirm if the Koyorad is thicker than the stock radiator?

Does it have the 1/8" bung for a temp sensor?

EDIT: Found it...







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Build Thread - S54 Vanos Thread

BAVSOUND Stage 1 - UltraGauge - Valentine One - Orion V4's - ARC-8's
TTFS Engine/SMG Tune - SGT Headers/Sect 1/SCZA - Evolve Eventuri
VIS XTS CF Hood - CF Lip/Console/Diffuser - OE CSL Trunk - Turner Spacers 15/12 - BWS 500S 9k/11k

Last edited by WOLFN8TR; Sat, Mar-18-2017 at 03:41:36 PM.
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Old Mon, Aug-21-2017, 03:31:10 PM   #16
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Default Re: Koyorad Radiator

Happy to report this unit seems to work pretty well - surprisingly much lighter than stock, and held up just fine at TWS on a 100+ degree day this past weekend. Temps used to hang out at the 3/4 "dot", however this time around they only creeped up there once and came back down after I backed off for half a lap.

My old unit was also clogged with about a cubic foot of june-bugs, even though I would blow it out with an air compressor every now and then. If you're in my boat and need to refresh and want something slightly better than stock, Koyo is a great option (IMO)
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Old Mon, Aug-21-2017, 04:39:29 PM   #17
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Default Re: Koyorad Radiator

Good to hear, I'm seriously thinking about getting one.

Koyorad Radiator
http://www.m3forum.net/m3forum/showthread.php?t=568336
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Build Thread - S54 Vanos Thread

BAVSOUND Stage 1 - UltraGauge - Valentine One - Orion V4's - ARC-8's
TTFS Engine/SMG Tune - SGT Headers/Sect 1/SCZA - Evolve Eventuri
VIS XTS CF Hood - CF Lip/Console/Diffuser - OE CSL Trunk - Turner Spacers 15/12 - BWS 500S 9k/11k

Last edited by WOLFN8TR; Mon, Aug-21-2017 at 04:55:15 PM.
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Old Sat, Jun-23-2018, 11:24:24 PM   #18
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Default Re: Koyorad Radiator

I wanted to post this incase anyone is looking to buy a new radiator.
The Koyo Radiators are on sale until the first week of July for approx $400, normally $600.

I just purchased one from Redline360
https://www.redline360.com/koyo-radi...3-e46-HH422675

Sub-Total: $395.00
UPS Ground: $21.68
Coupon (WELCOME): $-11.85
Total: $404.83

Koyorad Radiator Install: BMW E46 M3
http://www.motoiq.com/MagazineArticl...tallation.aspx


Koyorad HH Series Radiator- HH422675 for a 2001-2006 BMW 3-Series E46 M3. (E46 Chassis - w/ All Transmission)

Koyorad’s new 48mm “HH” Series radiator core features an ultra high fin density to maximize heat transfer. Koyo designs and manufactures each radiator with precision; therefore each one is a direct-fit performance replacement for the stock OEplastic/aluminum radiator for a quick and simple installation with no modifications. Koyo has also integrated a 1/8” NPT female accessory fitting (supplied with a threaded plug) to accept temperature sensors typically included with aftermarket temperature gauges.

Koyorad quality is a direct result of their privately owned factories which allow Koyorad Japan to oversee each stage of radiator production. This ensures that quality is never sacrificed for quantity. Each Koyo all aluminum radiator core is hand assembled, Nocolok brazed, then TIG welded by hand with the finest aluminum available. These are just a few characteristics that have earned Koyorad Radiators their excellent reputation in performance radiators worldwide.

Features
Koyorad “HH” Series 48mm Hyper Core
OE Specific mounting and direct fit
Nocolok-R Brazing
Precise Tube and Fin alignment
Billet aluminum filler neck
1/8” NPT female accessory fitting
Attached Images
File Type: jpg IMG_0017.JPG (109.7 KB, 39 views)
File Type: jpg IMG_0102.JPG (106.8 KB, 37 views)
File Type: jpg IMG_0103.JPG (158.6 KB, 36 views)
File Type: jpg IMG_0101.jpg (589.9 KB, 35 views)
File Type: jpg IMG_0109.JPG (329.8 KB, 42 views)
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Build Thread - S54 Vanos Thread

BAVSOUND Stage 1 - UltraGauge - Valentine One - Orion V4's - ARC-8's
TTFS Engine/SMG Tune - SGT Headers/Sect 1/SCZA - Evolve Eventuri
VIS XTS CF Hood - CF Lip/Console/Diffuser - OE CSL Trunk - Turner Spacers 15/12 - BWS 500S 9k/11k

Last edited by WOLFN8TR; Sat, Jun-23-2018 at 11:29:54 PM.
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Old Sat, Jun-23-2018, 11:39:06 PM   #19
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Default Re: Koyorad Radiator

The NPT port is cool - I'm pretty sure mine doesn't have one
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Old Sun, Jun-24-2018, 01:31:41 AM   #20
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Default Re: Koyorad Radiator

Love mine. Bought a second M3 and it was the first thing I swapped.
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Discussing Koyorad Radiator in the E46 M3 (2001-2006) Forum - Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006. at BMW M3 Forum.com (E30 M3 | E36 M3 | E46 M3 | E92 M3 | F80/X)