i've heard some swear by them and others not.i live in the south and have been told to get one,due to the high heat.and have the money to to so.is it worth it or spend the money on something else.

 

An oil cooler on a large air cooled twin is a good idea.The H-D cooler has a thermostat so it's pretty much automatic.I don't know why anyone would advise against something thats good for your motor.

 

An excellent idea, just remember, you have to be moving for the cooler to work it's 'magic' though.

 

What you're really asking is, "Is my oil too hot?". I don't know, is it?

I know, that sounds like the smartass asnwermy dad always gave me. But in retrospect, he was usually right.

So, before making any mods, you need to evaluate the current condition. How hot does your oil really get? And how often does that happen?

Oil has an operating range. 180* seems to be the minimum accepted temp for proper operation. So You want to make sure it gets at least that warm. A cooler may not allow that minimum temp, even with a thermostat. If you rarely see your temps greater than 220*, don't bother. If it rarely gets to 200*, avoid a cooler at all costs.

 

I 2nd bob cowan. I have made 146 hp at the rear wheel and have sit in miles of traffic at daytona/ MB with very few instances where I saw temps over 240( no oil cooler). Make sure you are not running lean or to much timingand use a good syn. oil for v-twin air cooled engines. I like mobile one but any good syn will do.