Originally Posted By: 440Magnum
Originally Posted By: OVERKILL
Will a Mark VIII fan fit? If so, that, plus a DCC controller should be all you'll ever need. Those things move a STUPID amount of air.
I bought a MkVIII fan for my Polara, and decided it would be too much work to make it fit. So I risked going down in size to the fan from a 3.8 Taurus (considered second to the MkVIII fan among OEM fans) and it works great at keeping the 440 with AC cool along with a DCC continuously-variable controller. Why that much fan is needed for a front-drive v6, I'll never know. The only complaint I have is that the DCC controller generates a lot of EMI and actually interfered with my ignition system until I added a lot of ferrite chokes on the wiring. You could feel the idle get "choppy" as the fan ramped through certain speeds- not good. But a big electrolytic cap on the input, chokes on the input/output, and re-routing the wiring in the harness to stay away from the ignition fixed it right up.
Many early FWD cars had an excessive amount of stuff packed into a small underhood compartment. The radiant heat from the exhaust manifolds and other sources then became a huge problem. The manufacturers didn't do much to help heat ventilate out from under the hood of the car either. V6 engines made this problem worse.
This is why many early FWD cars weren't relaible, and why the paint on the hood often peeled away while the rest of the paint was intact. Many other things located under the hood didn't last long either. Mom's 1985 Nissan Maxima suffered the same problem.
Originally Posted By: OVERKILL
Will a Mark VIII fan fit? If so, that, plus a DCC controller should be all you'll ever need. Those things move a STUPID amount of air.
I bought a MkVIII fan for my Polara, and decided it would be too much work to make it fit. So I risked going down in size to the fan from a 3.8 Taurus (considered second to the MkVIII fan among OEM fans) and it works great at keeping the 440 with AC cool along with a DCC continuously-variable controller. Why that much fan is needed for a front-drive v6, I'll never know. The only complaint I have is that the DCC controller generates a lot of EMI and actually interfered with my ignition system until I added a lot of ferrite chokes on the wiring. You could feel the idle get "choppy" as the fan ramped through certain speeds- not good. But a big electrolytic cap on the input, chokes on the input/output, and re-routing the wiring in the harness to stay away from the ignition fixed it right up.
Many early FWD cars had an excessive amount of stuff packed into a small underhood compartment. The radiant heat from the exhaust manifolds and other sources then became a huge problem. The manufacturers didn't do much to help heat ventilate out from under the hood of the car either. V6 engines made this problem worse.
This is why many early FWD cars weren't relaible, and why the paint on the hood often peeled away while the rest of the paint was intact. Many other things located under the hood didn't last long either. Mom's 1985 Nissan Maxima suffered the same problem.