Last post on May 30, 2009 at 7:37 AM
You are in the Classic Cars
What is this discussion about?
#237 of 255 1969 Plymouth Valiant 225 Towing Capacity
May 28, 2009 (10:53 am)
I was wondering if anyone could tell me what the towing capacity for this car is. I would like to pull a small travel trailer with it but I'm not sure how large it can be so the car can comfortably pull it. I plan on buying a vintage trailer somewhere in the same year range as the car and work on them both as a restoration project. Any info would be appreciated thanks.
#238 of 255 Re: 1969 Plymouth Valiant 225 Towing Capacity [cmknight8897]
May 28, 2009 (1:00 pm)
I have no idea, but as a wild guess I'd say maybe 2000 lb, max. While a Valiant may not seem like a small car by today's standards, back then it was considered a compact. In stock form, the Valiant with the 225 engine had a 2.76:1 axle ratio, and 9" manual drum brakes. Around 110 hp net (145 gross), and maybe 185 ft-lb of torque, I'd guess. I don't think it would be able to tow much, without some beefing up.
I guess if you could swap in different gears, maybe 10" brakes off a V-8 Valiant/Dart, and perhaps install a transmission cooler and oil cooler, maybe the car would be a better tow vehicle? A 2.94:1 axle was standard in 1967, and optional in later years. That would probably be better, but still maybe not enough?
#239 of 255 Re: 1969 Plymouth Valiant 225 Towing Capacity [andre1969]
May 28, 2009 (1:46 pm)
I plan on converting to power disc brakes cross drilled and slotted rotors and probably changing the gear ratio. I would like to keep it mostly original. I want to keep the slant six. The trailer doesn't need to be very large probably about 14 -16 foot or so. Based on that I will find out the gross weight of some trailers of that size.
#240 of 255 Re: 1969 Plymouth Valiant 225 Towing Capacity [cmknight8897]
May 28, 2009 (3:14 pm)
you may want to check into getting a larger radiator, from a v8?, and adding a transmission cooler.
#241 of 255 Re: 1969 Plymouth Valiant 225 Towing Capacity [explorerx4]
May 28, 2009 (3:57 pm)
OK thanks. I will definitely be adding a trany cooler and a larger radiator couldn't hurt.
#242 of 255 Re: 1969 Plymouth Valiant 225 Towing Capacity [cmknight8897]
May 28, 2009 (4:00 pm)
I used my '72 Duster with a 198/manual 3 spd. to pull a small Uhaul trailer from Houston to San Francisco, no problems. I had previously installed a bigger radiator and a large-capacity fan. I imagine it was well under 2000 lbs, so if you're talking travel trailer, it had better be small!
Note-while drilled and slotted rotors are good for looks, they actually aren't better for overall braking performance, and all that drilling and slotting actually can weaken the rotors. Disc brakes sure would be an improvement over the drums, though
#243 of 255 Re: 1969 Plymouth Valiant 225 Towing Capacity [texases]
by MrShift@Edmunds HOST
May 28, 2009 (4:52 pm)
I'd say nothing over 1,000 lbs and even that is pushing it. You have everything against you--small engine, no transmission cooler, drum brakes, and no doubt an economy differential gearing.
So that's about the weight of a U-Haul closed trailer that's 5 X 8 foot and empty.
#244 of 255 Re: 1969 Plymouth Valiant 225 Towing Capacity [Mr_Shiftright]
May 28, 2009 (5:42 pm)
Sounds about right. With my manual tranny I had one less thing to worry about. I used (and loaded up ) the smallest Uhaul trailer-might be smaller than 5x8? It was 'fun' passing a guy on PCH...
#245 of 255 Re: 1969 Plymouth Valiant 225 Towing Capacity [texases]
by MrShift@Edmunds HOST
May 29, 2009 (6:32 am)
One trip on US highway 50 through Nevada would convince anyone not to tow much weight with a passenger car. I've seen too much carnage on that road. I'm a believer in never pushing your tow weight.