Cooling for Colorado

The tech thread on Carlisle running stats gave some cooling figures which prompts this question. I have a 1915 engine with a thin line sump. The anticipated "average" temperatures from SoCal to Colorado are in the 90's-100's in September. Not all of the way of course, but several hundred miles. How would you add to or change this set up in anticipation of this kind of heat?

I run a 1915 Hi-Perf. with stock cooler....In my case, I think bumping the timing from 30deg. to 27/28deg. would be enough....Maybe fatten the air gas ratio a little....

leon , do you monitor your oil temp? and what kind of oil do you use 15/40, or what.and how much timing do you run. is 230 on the temps to much. thanks bill.

id add a remote oil filter and a 72 or 96 plate oil cooler with switch under dash.

Or a built-in thermostat and fan instead of a manual switch. I have such a set up, and I never saw over about 200-210 the whole 1500+ miles, even though the last leg of the trip was 70mph in temps in the 80's.

Monitored oil temp on Carlisle trip....207deg. max. if I remember correctly.....Don't have data log handy....Timing is 30deg. @ 2800rpm...20W50 Castrol or Kendal....Last leg of trip, ambient temp in the mid to high 80's....Engine has thin line sump....Spent about a month jetting carbs using head temp as primary guide....

what size carbs, and what jets, also what exhaust do you use. thanks bill

Carbs are Weber 44 IDF's...36mm venturi...60 idle jets...202 air correction jets...155 mains...and F-11 tubes....Be advised that although this works for me, my car is not as heavy as a Speedster and does not have the cooling restrictions a Speedster normaly does.

There for, this combination may not work for you....If you want to run Webers, buy the TECH MANUAL, read it throughly and then select your carbs and or parts.....

Hope this helps....

EXhaust....almost wide open...

Almost?

Danny, did the new ignition set-up cure any pinging you were getting before?
~WB

Thanks for the input. Sorting the differing opinions (Berg vs coolers,etc.) it helps to hear some real world experience in Speedsters. I would be interested to hear the results of Gordon's install shown on the SpeedsterShop.com site. Or anyone else who has gone the fan/cooler/filter route.

Pinging is GONE!!!

Next time you have to drive it again Bill.

Excellent! Can't wait ;)

Meet at Tom's for engine teardown/find and fix?

First weekend or two in June?