Engine, Drivetrain & Forced-Induction
Have Technical Questions or Done Modifications to the G37? Find out the answer in here!
View Poll Results: Which cooling mod do you have?
mishimoto thermostat
11.76%
Csf radiator
35.29%
other
29.41%
none of the above
41.18%
Multiple Choice Poll. Voters: 17. You may not vote on this poll

Additional cooling tips?

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Old 05-05-2015 | 11:37 PM
  #16  
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Black Betty
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If your car never gets anywhere close to freezing temps you don't need any coolant for its antifreeze properties at all, just corrosion protection. I've been running water wetter and 25% coolant/75% distiller water for years. It's really important to get all of the air out of the system to cool efficiently.
Old 05-06-2015 | 12:28 AM
  #17  
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From: Oman.
Doesn't water/rain leak in with those vented hoods ?! I always wanted to know this lol. umm .. Any vented CF hoods for Sedans crowd ?!

ANMVQ .. Loved yours.
Old 05-06-2015 | 09:06 AM
  #18  
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From: Framingham Ma,
Originally Posted by Glover998
Doesn't water/rain leak in with those vented hoods ?! I always wanted to know this lol. umm .. Any vented CF hoods for Sedans crowd ?!

ANMVQ .. Loved yours.
Thanx man me too, Yes they make that same hood for the sedans I'm waiting for one to be made. Yes some water of course would run in but nothing crazy.
Attached Thumbnails Additional cooling tips?-ak-cf-hood-sedan.jpg  

Last edited by ANMVQ; 05-06-2015 at 11:23 AM.
Old 05-06-2015 | 11:18 AM
  #19  
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From: Oman.
^ is it custom made to order ?! can you give me their link .. i need one
Old 05-06-2015 | 11:24 AM
  #20  
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ANMVQ
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From: Framingham Ma,
Sure man tell Alex, I sent you .. PM me I'l give you my name BTW thats Alex's car.

AUTO KITS X
Old 05-06-2015 | 12:06 PM
  #21  
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kk bro .. PM me ur name
Old 07-06-2015 | 02:39 AM
  #22  
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Waking this up from the dead. So I did two coolant flushes (25% coolant), changed my thermostat with another stock one (rockauto) and added water wetter. Safe to say my car been the coolest it ran during my tenure of owning it. My good friend claimed that it was a faulty thermostat (not opening all the water) it also could've had air pockets. I bought a lisle spill free funnel (eBay) to burp the air out of the coolant passage way for over an half hour. I'm a happy camper to see 190°-200° temperatures.
Old 03-02-2016 | 09:05 AM
  #23  
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Months later and the coolant flush served a great purpose. My temps don't go above 205°. I did get a CF seibon vented hood I've yet to install but it'll serve more of a purpose when I turbo my G. Still think it'll look good though
Old 03-04-2016 | 05:16 PM
  #24  
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Water Wetter reduces water's rather strong surface tension. This surface tension can allow steam bubbles to form in the head, especially around the exhaust valve. Once steam has formed, no more additional cooling for that spot or spots.

It's been quite awhile since I looked into Water Wetter, can't remember if it does anything better than glycol. I do remember I couldn't use it (or glycol, for that matter) on road courses. Really slippery stuff if there's a coolant loss.

Proper glycol:water ratio and higher-pressure coolant system cap should be sufficient for any street driving.
Old 02-11-2023 | 04:26 PM
  #25  
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Mishimoto

Originally Posted by PongSanity
i got the stillen oil cooler. I got the zspeed under shroud. Does anyone have the mishimoto thermostat? (I know gofightnyugen, mishimoto is garbage.) does it make the engine "too cold" like some claim? Has it failed on anyone? What are your average coolant temps after installation?

What about the csf radiator and condenser? Is it hard to install? Is it worth the $600? What are your average coolant temps after installation?

Any other tips or mods to improve cooling of the engine?


I live in constant 70-90° degree weather all year round and drive at 30mph on average. The car's average mph is 10.9 mph at 10.5 mpg. My intake temps are always in the 80s and my coolant temps be between 220°-240°

I would prefer 180-200° ... Any advice?
It brings down cooling temp. By a lot. 160
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