Cooling a Tiger means it doesn’t overheat. The word “cool” is a misnomer. It’s OK and perfectly normal for a Tiger to get up to 200F + a little as long as it doesn’t blow it’s cool. Elec fans help at idle only but can adversely affect high speed cooling. Especially the big fans. That is why a smaller fan (10-11″) may be a better choice. Also keep to a low blade count, like a 4 to 7 blade Max fan. Any more blades and you have a loud fan that moves less air. Actually, there should be NO need for a elec fan except for real extreme cases if the car is properly cooled. That is, the following is in place, horn holes blocked, bottom of rad to cross member is blocked, use of virtually any modern core brass (three row max) or Al radiator, a properly aligned fan shroud to fan clearance and a Derale #17015 fan properly clearance is used. There fan may have clearance problems with the belts, hoses and R&P. Fix the problems. DO NOT cut the fan blades.
Under high ambient days, increase engine idle to approximately 1200 to 1500 for significant cooling improvement at idle.
Now be Kool.