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What PSI Radiator Cap? #2788247 06/22/20 08:41 PM 06/22/20 08:41 PM
Joined: Jan 2003 Posts: 1,194 Rochester, New York G GregY OP super stock
GregY OP super stock G Joined: Jan 2003 Posts: 1,194 Rochester, New York	It's a '71 Charger, 9:1 440, factory 22-inch radiator, high flow water pump and 180 degree high flow thermostat. It does have an overflow bottle. It tends to run a little warm in the warmer air temps. Right now it's got a 14-18 psi pressure release cap. I don't know that there is anything wrong with the cap that's on it now, but I don't know where I got it or how old it is. I would just like get something that I know where I got it and why I got it. Thanks. Greg

Re: What PSI Radiator Cap? [Re: GregY] #2788278 06/22/20 10:14 PM 06/22/20 10:14 PM
Joined: Jan 2003 Posts: 1,996 s. e. pa. C calrobb2000 top fuel
calrobb2000 top fuel C Joined: Jan 2003 Posts: 1,996 s. e. pa.	hi most use a 16 lb cap !

Re: What PSI Radiator Cap? [Re: calrobb2000] #2788357 06/23/20 08:38 AM 06/23/20 08:38 AM
Joined: Jan 2003 Posts: 1,194 Rochester, New York G GregY OP super stock
GregY OP super stock G Joined: Jan 2003 Posts: 1,194 Rochester, New York	Thats kind of what my research was a telling me. I am not sure why the cap I have says 14-18 psi.

Re: What PSI Radiator Cap? [Re: GregY] #2788360 06/23/20 09:00 AM 06/23/20 09:00 AM
Joined: May 2003 Posts: 6,560 Downtown Roebuck Ont Twostick Still wishing...
Twostick Still wishing... Joined: May 2003 Posts: 6,560 Downtown Roebuck Ont	Originally Posted by GregY Thats kind of what my research was a telling me. I am not sure why the cap I have says 14-18 psi. Probably bought from a store that sells a lot of radiator and heater hose. Kevin

Re: What PSI Radiator Cap? [Re: Twostick] #2788463 06/23/20 01:34 PM 06/23/20 01:34 PM
Joined: Jan 2011 Posts: 15,831 Central Florida larrymopar360 Stud Muffin
larrymopar360 Stud Muffin Joined: Jan 2011 Posts: 15,831 Central Florida	I always buy a NOS Mopar 16psi if I have to replace one or when I get a new radiator or recore Facts are stubborn things.

Re: What PSI Radiator Cap? [Re: larrymopar360] #2789399 06/26/20 10:48 AM 06/26/20 10:48 AM
Joined: Sep 2003 Posts: 19,355 north of coder moparx "Butt Crack Bob"
moparx "Butt Crack Bob" Joined: Sep 2003 Posts: 19,355 north of coder	i agree with a 16lb cap as well. factory mopar four ear [late model] replacement cap available at your local dealer.

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