Running without thermostat

Jeff Chambers · 06-30-2005, 06:48 AM

Not a good idea for an EFI car. If your engine temp doesn't get above ~170-degrees, the car won't enter the base fuel & spark temperatures. Now if you're sure it will break the 170 mark with some margin (as measured by the ECT), then you might be OK, but even at that I'd still put a restrictor in to limit the flow through the engine.

07-01-2005, 11:30 AM

Yeah, if you have to remove the old one anyway, then why not spend the $6 or whatever it is and slap in a 180.

ob1thx1138 · 07-01-2005, 12:35 PM

I agree, if a new thermostat is going to break the bank, then you really don't need to try to get a new engine, I guarantee you that will cost at least a couple hundred more than you budget.... Theres always something you find that needs replacing or fixing that you didn't expect.

06-30-2005, 06:48 AM	#1
Jeff Chambers Moderator Join Date: Aug 2000 Location: Milan, OH Posts: 2,699	Re: Running without thermostat Not a good idea for an EFI car. If your engine temp doesn't get above ~170-degrees, the car won't enter the base fuel & spark temperatures. Now if you're sure it will break the 170 mark with some margin (as measured by the ECT), then you might be OK, but even at that I'd still put a restrictor in to limit the flow through the engine. __________________ Jeff Chambers 1990 Mustang GT 10.032 Seconds / 137.5 MPH 14-time Street Warrior World Record Setter CRT Performance 2001 Tropic Green Mustang GT - 12.181 / 113.2 MPH 2002 Ford F-250 Crew Cab 7.3l Power Stroke - 17.41@77.2 "There's nothing boring about a small block automatic shifting gears at 9400 rpm!"

07-01-2005, 11:30 AM	#2
Simi Stang Guest Posts: n/a	Re: Running without thermostat Yeah, if you have to remove the old one anyway, then why not spend the $6 or whatever it is and slap in a 180.

07-01-2005, 12:35 PM	#3
ob1thx1138 Registered Member Join Date: Jun 2005 Posts: 2	Re: Running without thermostat I agree, if a new thermostat is going to break the bank, then you really don't need to try to get a new engine, I guarantee you that will cost at least a couple hundred more than you budget.... Theres always something you find that needs replacing or fixing that you didn't expect.

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