Why not simply add heavier weight oil to the stock unit?
Blue Fan Clutch (1 Viewer)
- Thread starter HAAANK
- Start date
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ewillis
SILVER Star
Because then you wouldn't buy stuff...
SmokingRocks
hopelessly addicted to Cruisers
- Thread starter
- #4
So in all seriousness all one really needs to do is put heavier weight oil (aka tune) in the stock fan clutch and you enjoy the same benefits as the “tuned” blue?
ewillis
SILVER Star
not to get into the nitty gritty but a tuned clutch will give better AC performance during idle and slow speed and it's a one tune fits all set up. In other words you don't have to speculate where you are going to be and how hot it will get to pick the proper weight oil.
Hornd
SILVER Star
Just like baking cookies I put mine in the oven on 200 in a pyrex upside down. Measured what came out. Put same back in.
If Philips won't come out, hit with torch then PB Blaster then Impact.
- Thread starter
- #8
Is there a benefit to using heavier weights like 15k or 30k?
If I recall correctly from the long thread that discussed the evolution of this mod, the balancing act is to let the fan slip when the engine isn't hot (better mileage) and roar when the engine is hot (better cooling). Landtank's modded clutches are set to start pulling air where he feels they should start; and pull hard where he thinks they should pull hard.
If you fill your clutch with super thick fluid, it will pull all the time. I suppose I could try to find his longer thread. It tells you how to mod yours, if you prefer to DIY, and has lots of feedback from people who tried different weights of fluid (and mixes).
46 pages (so far) Blue fan clutch mod
