Space between the fan and radiator

[jims6t6]

1. What' the optimum space between the fan and radiator?
2. Should the fan go inside the shroud or just to the edge of it?

 

[Anonymous]

IIRC, the fan should be around 3/4 into the shroud and pretty close to the radiator.

 

[Jonk67]

I've always read 3/4"-1" from rad to front of fan and fan half in half out of shroud. I'll see if I can dig up where I read that, thought it was on a fan co. website like hayden or flexalite.
I think mine landed almost perfect to that measurement, if you put a straight edge on my shoud it would land in the middle of the twisted blade:

Jon

Edit, found this on the flexalite site, it refers to a flex fan which will flatten at full use though so I think the half in/out is for clutch fans

If it doesn't sit into the shroud then you loose the suction/drawing effect as you would be exposing the fan to air around the shroud.

 

[jims6t6]

Thanks Mark and Jon

 

[65coupei6]

1" from the radiator and half in/out of the shroud.

http://www.flex-a-lite.com/auto/html/fr ... stion.html

 

[cmayna]

Yup

:sm_NTA