3rd Generation Specific (1993-2002) 1993-2002 Discussion including performance modifications and Technical Support Sections.
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Dumb question?

Old Jun 21, 2002 | 10:01 AM
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Dumb question?

I heard someone talking recently about removing their thermostat on a 3rd gen and running without one.
Is this safe? Are there ANY advantages in doing this?
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Old Jun 21, 2002 | 10:28 AM
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I know in a normal car you don't usually want to do this, because the engine will never get up to normal operating temperature. I don't know how it would apply to the FD though.

I wouldn't do it.

btw..your sig says 'coming soon'..I've seen a CYM FD running around Manassas a couple of times...near Libera Ave and Rt 28...was that you?

Last edited by Section8; Jun 21, 2002 at 10:39 AM.
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Old Jun 21, 2002 | 10:44 AM
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Don't Do it the car will NEVER be operating at the correct temp - the ECU really wants to see 195-205deg water temp and freeks if the temp goes over 220 or is below 175
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Old Jun 21, 2002 | 10:50 AM
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No, that could have been someone testing one of PFS's CYMs for sale.
I just sold my Black R1 about two weeks ago and I'll be looking for a good clean CYM in the fall.
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Old Jun 21, 2002 | 10:54 AM
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Originally posted by BlkFD
No, that could have been someone testing one of PFS's CYMs for sale.
I just sold my Black R1 about two weeks ago and I'll be looking for a good clean CYM in the fall.
OIC. That's right, I forgot that Farrell still has those 2 CYM's down there.

There's a Black R1 at Maximum deals just off of Manassas drive that just showed up. That's not your car is it? 64K miles, PFS exhaust?
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Old Jun 21, 2002 | 11:17 AM
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maxpesce,

Thanks for the info.
I will pass it along.
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Old Jun 21, 2002 | 11:20 AM
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OIC. That's right, I forgot that Farrell still has those 2 CYM's down there.

There's a Black R1 at Maximum deals just off of Manassas drive that just showed up. That's not your car is it? 64K miles, PFS exhaust?
No, not mine I sold it out of state. It was super clean though with some nice Pettit Mods.
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Old Jun 21, 2002 | 01:52 PM
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I wouldn't take out the thermostat....but that's just me.

CYM's are hard to find, so good luck. But man they're great looking.
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Old Jun 21, 2002 | 02:20 PM
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you should never remove a thermostat on any car rotary or piston engine. your coolant sensor will never get an accurate reading, the front side of your engine will always run cooler than the rear (due to the coolant going directly to the engine without having the thermostat to regulate the temp.
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Old Jun 21, 2002 | 02:27 PM
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CYM's are hard to find, so good luck. But man they're great looking.
Don't I know it! I found a very nice one a few weeks ago at the same time I was selling my Black R1 but it was just a timing issue. If I don't find what I'm looking for then I'll probably just get a decent shell and build it. We can call it "Rikki's Big Adventure".
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Old Jun 21, 2002 | 02:54 PM
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I don't know about rx7's, but if you remove the thermostat and the engine never reaches operating temp, it will run in open-loop mode and use tons of gas. The computer thinks the car is always heating up. This happened on my old Probe. Bad gas mileage, and very black spark plugs.
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