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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 Sat, Jul-29-2017, 07:25:09 AM   #21
silvergray545
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Default Re: Best Value vs. Performance Radiator for Track Duty 2017?

I recently installed a CSF radiator. I must say, the fitment was spot on. Some of the radiators mentioned above require some modification to fit properly (or so I've heard). Was really impressed that the CSF dropped right into place.
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Old Sat, Jul-29-2017, 08:00:40 AM   #22
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Default Re: Best Value vs. Performance Radiator for Track Duty 2017?

BW Radiators = PWR. Top of the line with Zionsville.
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Old Fri, Aug-04-2017, 02:46:15 AM   #23
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Default Re: Best Value vs. Performance Radiator for Track Duty 2017?

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Originally Posted by lmtfi View Post
Yes - I've never been off the dead middle in either car (until the 2nd went high at the sustained top end on the dyno - but that car is new to me).

Consider shifting to 100% water + WW - and then changing back at the end of track season.

Some people have been using NanoPro MT's "NanoCool" with water.
Does NanoCool perform better than WW?
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Old Fri, Aug-04-2017, 03:15:24 AM   #24
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Default Re: Best Value vs. Performance Radiator for Track Duty 2017?

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Does NanoCool perform better than WW?
Although strongly endorsed in some track circles - I haven't seen data on it. There is a guy that says he is going to do a same-car comparison and report temp info he collects.

I think one needs to first move to 100% distilled water first (off 50/50 coolant). Then see what temperature results for you in your car/radiator in your track temps.

I'd say that if all water doesn't fix the problem - the difference between WW and Nano aren't going to fix what ails the cooling system.
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Old Fri, Aug-04-2017, 04:54:01 AM   #25
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Default Re: Best Value vs. Performance Radiator for Track Duty 2017?

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Originally Posted by lmtfi View Post
Although strongly endorsed in some track circles - I haven't seen data on it. There is a guy that says he is going to do a same-car comparison and report temp info he collects.

I think one needs to first move to 100% distilled water first (off 50/50 coolant). Then see what temperature results for you in your car/radiator in your track temps.

I'd say that if all water doesn't fix the problem - the difference between WW and Nano aren't going to fix what ails the cooling system.
I wouldn't be against using 100% distilled water, and freezing isn't an issue for me here in CA. However my indy tech told me the BMW coolant is also an anti-corrosive. I wonder if that's really true.
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Old Fri, Aug-04-2017, 05:06:25 AM   #26
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Default Re: Best Value vs. Performance Radiator for Track Duty 2017?

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Originally Posted by speeeding View Post
I wouldn't be against using 100% distilled water, and freezing isn't an issue for me here in CA. However my indy tech told me the BMW coolant is also an anti-corrosive. I wonder if that's really true.
It is true, so run 10% or something. Don't the wetter water and other surfactants also have anti-corrosive properties too?
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Discussing Best Value vs. Performance Radiator for Track Duty 2017? 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)