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Track-only FD: NO Thermostat? Does FD have bypass port?

Old 07-28-14, 02:32 AM
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Track-only FD: NO Thermostat? Does FD have bypass port?

Sup guys,

I've been tracking FC's for a long minute, and now cutting my teeth on an FD.

Running stock ports, emissions delete, Apexi PowerFC, ID2000's, Fuelab FPR, GSP 7081 Turbo, Greddy FMIC, Big Oil Cooler, Coolant/WaterWetter, etc., etc.

QUESTION:

Is the FD cooling system a bypass-system like the FC? Is there a bypass port underneath the Thermostat that needs to be blocked off like the FC when you run no thermostat?

Cruising temps right now is 88*C/190*F, and I'd like to try and get it down to 70*C/160*F like on my FC.

This is a Yes or No question. NOT a "lecture me on why I need to run a thermostat" thread, pretty please.


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Old 07-28-14, 05:58 AM
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The answer is yes.

I won't lecture you on why you should run a thermostat but I will say 190 is a good water temp and 160 is way too cold. I'll also say, if you can keep even an NA rotary at 160, you're not running it very hard.
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Old 07-28-14, 06:39 AM
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touche !.. yes indeed is bypass like FC.. infact the FD thermostat and its rubber ring is the same part used in the series five FC with the 3 bolt plastic thermoneck

the old days MFR water pump housings where simply welded up bypass hole and no thermostat
and i know from experience the 12a- FC water pump housings just required a tap and a pipe bung
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Old 07-28-14, 07:00 PM
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Old 07-28-14, 07:28 PM
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160 is only a issue if your fuel has a issue with it otherwise 160* is just fine. I been running 70*c tstats for years without a hiccup.
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Old 07-28-14, 11:59 PM
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^^^ RacingBeat

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Old 08-13-14, 10:30 AM
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"Track-only FD"

If that is the case, think about selling the FMIC (if that is what it is) and going V-Mount. Much better water cooling.
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Old 08-13-14, 11:21 AM
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+1 FMIC are a terrible idea for any track rat, turbo rx7
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