Reply From Cold Case Regarding OTR CAI - Pontiac G8 Forum: G8 Forums - G8Board.com
 
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post #1 of 7 (permalink) Old 07-10-2019, 05:00 PM Thread Starter
F1rehawk
 
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Reply From Cold Case Regarding OTR CAI

Messaged Cold Case Radiators regarding the fitment when using an OTR CAI like the VCM on our engines and got this reply:

"It would be pretty similar to the stock radiator. You would need to use the same brackets and tilt."

I've searched the forums and went to some car meets and one G8 owner said it would work with the VCM, which is considerably bigger than the Vararam.

Still haven't witnessed a single G8 using this combination along with the upgraded hoses. Can anyone confirm it would work?

Heard the fitment was not perfect but it seems like the only and best replacement option for the GT. Will soon do a full DOD Delete and Cam swap so it would be a good time to upgrade the radiator before it eventually cracks and causes issues.

2009 SRM PONTIAC G8 GT
VCM OTR Cold Air Intake
Kooks Long Tube Headers / HF Cats
Solo Mach Shorty Catback
Continental Extreme Contact DWS6 Tires
Shadow Chrome Camaro SS Wheels
91 Octane Tune @ JLS Tuning Performance
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post #2 of 7 (permalink) Old 07-10-2019, 11:21 PM
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As they are saying, it's similar fit to the OEM radiator therefore the VCM would fit just the same. I ended up returning my cold case radiator because of the cap fitment issue. I went back to OEM. Even with the added horsepower and 100+ ambient temps out here I have not had cooling issues. Plus I think the OEM radiator is a bit better with an OTR because I could see an all-aluminum radiator melting the plastic parts of the intake if they touched whereas the OEM plastic tanks do not radiate as much heat from the surface. Also slightly lower under-hood temps. Of course, if it starts to crack and leak that's the main downside but they are easy to change and you could buy 4 of them for the price of the cold case.

GXP built 11/10/2008 #246/1829, #10/70 PBM, M6, Onyx/Red, Roof
Livernois Mini-Stroker, CNC heads, custom cam 500whp/460wtq
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post #3 of 7 (permalink) Old 07-11-2019, 07:06 PM Thread Starter
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Quote:
Originally Posted by Ill09GXP View Post
As they are saying, it's similar fit to the OEM radiator therefore the VCM would fit just the same. I ended up returning my cold case radiator because of the cap fitment issue. I went back to OEM. Even with the added horsepower and 100+ ambient temps out here I have not had cooling issues. Plus I think the OEM radiator is a bit better with an OTR because I could see an all-aluminum radiator melting the plastic parts of the intake if they touched whereas the OEM plastic tanks do not radiate as much heat from the surface. Also slightly lower under-hood temps. Of course, if it starts to crack and leak that's the main downside but they are easy to change and you could buy 4 of them for the price of the cold case.
Thanks for the reply, I think I will stick with the stock one for now. Wouldn't want to melt the CAI unit. Heard lots of fitment issues as well.

2009 SRM PONTIAC G8 GT
VCM OTR Cold Air Intake
Kooks Long Tube Headers / HF Cats
Solo Mach Shorty Catback
Continental Extreme Contact DWS6 Tires
Shadow Chrome Camaro SS Wheels
91 Octane Tune @ JLS Tuning Performance
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post #4 of 7 (permalink) Old 07-11-2019, 11:08 PM
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Don't know if you are a fan of the looks but I went with Orssom and love it. I watched my mechanic do it in like 20 minutes. No issues yet after at least five years now. Knock on wood.

PBM GT W/SPORT PACK
GO:
Pat G tune
CIA: ORSSOM
EXHAUST: BADLANDZ CUT OUTS W/ X PIPE AND RESONATOR DELETE
KOOKS 1 7/8 mids and HFC's (coated)

SHOW:
PONTIAC EMBLEMS REMOVED. HOLDEN TRUNK LOGO ADDED.
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post #5 of 7 (permalink) Old Yesterday, 01:23 AM Thread Starter
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Quote:
Originally Posted by pony killer View Post
Don't know if you are a fan of the looks but I went with Orssom and love it. I watched my mechanic do it in like 20 minutes. No issues yet after at least five years now. Knock on wood.
This thread is actually about the Radiator unit

Need some coffee mate?

2009 SRM PONTIAC G8 GT
VCM OTR Cold Air Intake
Kooks Long Tube Headers / HF Cats
Solo Mach Shorty Catback
Continental Extreme Contact DWS6 Tires
Shadow Chrome Camaro SS Wheels
91 Octane Tune @ JLS Tuning Performance
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post #6 of 7 (permalink) Old Yesterday, 08:29 AM
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My bad. I thought you were looking into OTR intakes and didn't want to have to tilt the radiator for fitment.

PBM GT W/SPORT PACK
GO:
Pat G tune
CIA: ORSSOM
EXHAUST: BADLANDZ CUT OUTS W/ X PIPE AND RESONATOR DELETE
KOOKS 1 7/8 mids and HFC's (coated)

SHOW:
PONTIAC EMBLEMS REMOVED. HOLDEN TRUNK LOGO ADDED.
TINT
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post #7 of 7 (permalink) Old Yesterday, 11:45 PM
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Quote:
Originally Posted by GTRenegade911 View Post
Thanks for the reply, I think I will stick with the stock one for now. Wouldn't want to melt the CAI unit. Heard lots of fitment issues as well.
The fitment of the radiator itself wasn't too bad, I think I had to slightly enlarge the mounting holes for the condenser but nothing major. It's too bad the cap threads were way off. I had a rotofab at the time and there would have been no issues with that. In my opinion, the VCM does not require you to tilt the radiator back that much.

GXP built 11/10/2008 #246/1829, #10/70 PBM, M6, Onyx/Red, Roof
Livernois Mini-Stroker, CNC heads, custom cam 500whp/460wtq
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