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Not to bring resurrect an old thread but I think the reason why the vq37vhr uses basically the same plug and the vr38dett is that our engines are high compression
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11-08-2013, 12:37 AM
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#1 (permalink) |
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Join Date: Aug 2012
Location: East patchogue
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Drives: 09 370z
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Not to bring resurrect an old thread but I think the reason why the vq37vhr uses basically the same plug and the vr38dett is that our engines are high compression and the vr is boosted which brings up compression
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11-08-2013, 02:37 PM
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#2 (permalink) | ||
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Join Date: Jun 2010
Location: Ahnald, MO
Age: 47
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Quote:
I switched because w/an upgraded oil cooler the stock heat range of 8 is to cold. It runs the same and I'm receiving combined ~17 MPG w/my 4.30 final drive. Quote:
The VQ37VHR (11:1) uses the same plug cuz it runs hot in OEM trim. No oil cooler OEM 'till 2012 and then still inefficient! The VQ37VHR compression is 0.4 higher than the VQ35HR (10.6:1). The VQ35HR uses a 7 heat range plug and doesn't have an oil cooler OEM -which I'm sure runs hot too. |
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