Why so much heat?

[Blue Pilot]

Can anybody answer as to why the Viper produces so much more heat than my other vehicles. When I pull the viper into the garage after driving it, my garage gets to be a sauna. My truck and durango do not do this nearly as bad as the viper does, yet they run at about the same temperature.
Just curious, thats all.
Thanks.

 

[Chuck 98 RT/10]

Does your truck and Durango have a 488 cid V-10??? Legit question, I'm not trying to be a smartass. It just seems logical to me that two more cylinders and a lot more cid would produce more heat.

 

[Blue Pilot]

Good point, but the viper has an aluminum block, where as the 360's in my trucks have cast iron blocks, which hold heat longer.

 

[Magicboy2]

Well, by that logic, because the aluminum block DOESN'T hold the heat longer, that means it dissipates it faster, thus making the heat buildup in your garage more noticeable.

 

[Chuck 98 RT/10]

Put 10 1,000 degree torches on a piece of aluminum and 8 1,000 degree torches on a piece of iron half the size of the aluminum, then get a...forget it. Call the math majors.

 

[Moundir]

lmao

 

[marteeni]

My ZR-1 which has an aluminum LT5 motor is the same way..instant heated garage.

 

[BruceW]

I believe aluminum has a higher specific heat value than iron (takes more thermal energy to produce a temp. change) so once it's hot it releases more energy when cooling back to room temp. Also, there's a lot of thermal mass in the Viper, what with the big block, all of the fluids, and the tranny (and possibly the rear end).

 

[Blue Pilot]

Thanks, that all makes sense. If I did not live in Florida and needed a secondary house heater the viper would work just fine. It stays hot for a very long time, much longer than my other vehicles. I am just learning about this car, as I have only had it for 2 weeks.

 

[snakebitdave]

If they all your vehicles run at the same temperature 200 degrees is 200 degrees is 200degress. I would agree with others in that there is more mass. Larger engine, headers, exhaust system, radiator, etc. Also the heat has more openings to exit quicker than a "normal" vehicle. It is a plus in Michigan's heating season in that it helps to warm up the garage.

 

[BruceW]

I do use the V to warm the house in winter (for the few weeks it needs it). I have a fan mounted in the wall between the garage and the house. Vipers do make good secondary heaters.

 

[Got Venom]

In mild Sunnyvale, California, it does get warm in the summers, and it is a pain to have the garage get 20+ degrees warmer after you pull the Viper in, so this season, I'm going to get one or two of those solar powered attic/roof fans to draw the heat out of the garage.

 

[joe117]

Just the extra 5 qts of oil alone is going to do some extra heating.

 

[MoparMan]

In addition to all the other answers above, consider that a byproduct of making horsepower is making heat. The engine in your Durango is at best a 360 (assuming its an R/T) and it's making about 250HP at the flywheel. Your Viper is a 488 and is making at least 410 at the rear wheels (probably about 15% more at the flywheel).