Mounted the cooling fan and the rest of the cooling system. I wanted to run the engine until it warms up to check for leaks or any other issues before putting the suspension cradle back in. The alternator is swapped to the other side in preparation for the A/C compressor to go on the right side.
View attachment 19553
I cut the rad opening to better match the size of the rad. Also cut some sheet metal away to mount the fan.
View attachment 19551
View attachment 19552
The engine ran well. One small coolant leak from where the thermostat housing bolts to the intake manifold. As they say, an easy fix. No oil leaks or any other concerns.....except...
The electric cooling fan blows a lot of air when testing it. But with the rad in front of it (I have a Griffin rad), the flow is cut down to the point that it is hard to tell that air is blowing through the rad. This is what I have now:
View attachment 19554
View attachment 19555
I'll do some research to see if there is a better one I can get. I do remember the long article on testing all the various cooling mods on a Tiger found that fans with straight blades worked the best. Maybe the curved ones are mainly to quiet it down? Fans on turbofan engines a basically straight, so maybe that says something? Maybe a shroud around the fan would force more air through the rad. I'd like a fan powerful enough to move the car!
Anyways, I can go ahead with things which is good.
Rick
Edit: After looking around a bit, I'm thinking of this fan with a shroud; https://www.summitracing.com/parts/prm-19114
I recommend the Spal fan below. It is very strong and moves a lot of air. Spal fans use more amps at start but once running normal. Most electric fan manufacturers are a liberal on the cfm. Spal fans are very true to cfm. This fan also has a very open shroud area so not to block air traveling through radiator when fan is off. They make a few sizes in this series. They cost more but well worth it.Mounted the cooling fan and the rest of the cooling system. I wanted to run the engine until it warms up to check for leaks or any other issues before putting the suspension cradle back in. The alternator is swapped to the other side in preparation for the A/C compressor to go on the right side.
View attachment 19553
I cut the rad opening to better match the size of the rad. Also cut some sheet metal away to mount the fan.
View attachment 19551
View attachment 19552
The engine ran well. One small coolant leak from where the thermostat housing bolts to the intake manifold. As they say, an easy fix. No oil leaks or any other concerns.....except...
The electric cooling fan blows a lot of air when testing it. But with the rad in front of it (I have a Griffin rad), the flow is cut down to the point that it is hard to tell that air is blowing through the rad. This is what I have now:
View attachment 19554
View attachment 19555
I'll do some research to see if there is a better one I can get. I do remember the long article on testing all the various cooling mods on a Tiger found that fans with straight blades worked the best. Maybe the curved ones are mainly to quiet it down? Fans on turbofan engines a basically straight, so maybe that says something? Maybe a shroud around the fan would force more air through the rad. I'd like a fan powerful enough to move the car!
Anyways, I can go ahead with things which is good.
Rick
Edit: After looking around a bit, I'm thinking of this fan with a shroud; https://www.summitracing.com/parts/prm-19114
Summit catalog Manufacturer Part Number: SPU-IX-30102040.