Ok I'm in need of an oil cooler. After riding on the highway today for about 40 miles in 80 degree weather and travelling between 70-80mph the oil temp got up to 260F. I got stuck in traffic after that and the bike sat there idling but the temps actually went down to about 240F. It seems the temps really go up on high speed highway travel.
I was wondering if anybody has any experiences on what would work to cool it best. I have been looking on EBAY and have seen a few things
http://cgi.ebay.com/ebaymotors/FITS-...spagenameZWDVWI'm kind of skeptical of this one

http://cgi.ebay.com/ebaymotors/JAGG-...spagenameZWDVWthis one looks like pretty close to the one Harley sells themselves for about $85 more http://www.harley-davidson.com/gma/g...bmLocale=en_US

http://cgi.ebay.com/ebaymotors/CHROM...spagenameZWDVW

 

Pib, to be honest, the oil cooler sleeve doesn't do a whole lot, my friend got one. Get a real cooler like the other two, they both cool very well. I am lucky, don't live in a very hot city, I do think the cooler looks ugly to me lol.

 

Yea it does look ugly but it would be even uglier for my bike to overheat and destoy itself. Not trying to get it for looks, just trying to get my temps down.
Are the temps I've listed ok or what temps should I start worrying about? I've hit 280 F before also.
By the way I'm already using Mobil 1 20w50 syn oil.

 

The first thing I would do is check your plugs for a lean condition or even worse a slightintake leak. Your bike shouldn't be running 260* when running down the highway and then cool off in traffic.

The second thing I would do is double check the oil temp with a meat thermometer to make sure you oil temp dipstick isn't screwed up. Those things are notoriously wrong.

 

Nope not running lean, actually running a little rich. Its running hotter because of the conversion. My temps seem about 20 degrees hotter since the conversion.
There is a topic on the XL forum with others having the same problem. Some say there bike runs hot on the highway and cools off when stopped just like mine. So far the cause has not been found.
I checked the thermometer in a pan of boiling water and it checked out ok.

 

280 F Holy, that's real hot, by the way where do you live?

 

What are the components of your conversion? I still don't get why it would run so hot with air flowing over it in pretty mild air temps.

 

I live in Virginia.
It got up to 280 yesterday while sitting in traffic when I was trying the stock 883 ignition again. It had more power with that ignitionbut it's because it was advancing the timing too much. It was pinging pretty bad.
I put the Twin Tec ignition in and tried different serttings on it but they all pinged even the 0 and 0 setting. I put the SE 1200 ignition back in for now as it seems to have the least pinging. I don't have the computer cable for the Twin Tec or I could adjust it further.
I rode 160 miles today and the highest it got was 260F on the highway, I got home and let it idle in the garage and it got down to 210F.
I have a feeling the lower 883 gears on the highway resulting in higher rpmsis partly to blame.

The conversion consisted of only the NRHS 1250 cylinders and pistons. No head work or cams were done.
Even when it was an 883 last summer it got up to about 230 and 240F which is normal I believe. The only time it would run below 200 was in the winter or very short trips.

 

With the bit more info you have provided, my money is gonna be on a timing issue. IMO, lower gears have nothing to do with it.

If 230-240 is normal during mild temps, that sucks, IMO. My old Ironhead rarely gets above 200 even with the oil cooler covered and running lower than stock gearing. My Twin Cam hovers around 200-210 even in hot weather.

 

Also I forgot I am running plugs that are colder by 2 stock numbers. NGK plugs for a Sportster are DCPR7E andI am running DCPR9E.