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Old 05-20-2012, 11:54 AM   #1
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Default Radiator for 350 WHP Track Miata

What size radiator are the higher horsepower Miata guys running for track use. My set up is a 1.9 liter with a 3071 running on E85. I have an oversized KOYO but my temperatures where still a little high (210) for my liking. I already have a hood vent and I know I need to do a better job with ducting on the bottom of the radiator but will this be enough or do I need something bigger? Suggestions? Thanks
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Old 05-20-2012, 12:01 PM   #2
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The Trackspeed Engineering radiator is what you want, but really you need to have proper ducting.
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Old 05-20-2012, 12:03 PM   #3
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Trackspeed Engineering Dual-Row Race Radiator

If you can wait until the end of June and have an NA, this is your best option.
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Old 05-21-2012, 06:01 PM   #4
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Do you already have a coolant re-route?
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Old 05-21-2012, 07:25 PM   #5
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Yup, we'll need to know if it's an NB or NA.

Edit: Looking back, you have an '05 MSM? Is TSE's NB radiator out yet?
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Old 05-21-2012, 07:30 PM   #6
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NB radiators will follow the NAs by about 2 months.

Theseus is/was 350whp and uses a TSE radiator. Temps are ~205-215*F in 100*F heat. Ducting is still key, but at those power levels you need as much radiator as you possibly can get.
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Old 05-21-2012, 09:27 PM   #7
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My Miata is a 94. I have the coolant re route done. Does anyone have diagrams or photos of some good ducting"? Thanks
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