- Joined
- Jul 30, 2002
- Location
- Rockville, MD
Seems that instead of swapping efans everyone should be running 93 instead. Those gains from good gas alone are silly.
only if you tune for it.
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Seems that instead of swapping efans everyone should be running 93 instead. Those gains from good gas alone are silly.
Seems that instead of swapping efans everyone should be running 93 instead. Those gains from good gas alone are silly.
That is what you got from his "scientific" test? A worn out mechanical fan on a sketchy running 244 from 3 runs that may or may not have had decent gas coursing through the fuel line.
Sounds legit.
How about a hydraulic efan?
For test purposes only, bend an L bracket, under a water pump bolt, engaged into the fins on the fan clutch.
My jeep has a hydraulic fan. Runs off the power steering pump. It's quiet, I don't even hear or feel it working. No matter how hot it gets, whether if I'm towing or offroading..the engine temp is solid.
On that note, do all LH 2.4 ECUs support controlling the electric fan? What if I burn a ROM from a 940 with factory e-fan and put it in the ECU of my 740? Using the ECU to control the fan seems like the cleanest way of doing it.
Just got a call from a buddy who works inside GM and the 2020 Corvette will be using a mechanical fan. Apparently the leak of this news is creating a wave of change within the auto industry. All car manufacturers intend to switch to mechanical fans by 2021. The difference they say between mechanical fans and efans is infinitesimal. As well hand cranks to start the engine will be offered as an option.
Seriously though, the only real reason to swap to e-fan is to get rid of that infernal noise...
your mom called to make an appointment, and mentioned that you need to move out of the basement.
..
that does sound like something decidedly chrysler/mercedes, that's funny (sorry). probably not all that bad though really aside from the plumbing aspect.
First one I saw was on a Lexus SC400
Not all ECUs support an e-fan, so grab one from a doner that has one installed from the factory. Forget swapping chips and just swap the whole ECU. As long as the engine is the same and the 940 didn't have an immobilizer installed it should work out just fine. AFAIK, If there was an immobilizer installed, then you'll have to get a chip burned to replace the onboard one. That's what I did for my project 740 (see signature) with a 984 ECU, works great with the computer controlled fan.
You'll need to populate pins 10 and 11 on the harness to run a wire to the low and high speed relays on the fan, but it's simple, easy and avoids hacking radiator hoses to install thermal switches.
A list of ECUs with information on motors and if it has an immobilizer can be found here: http://forums.turbobricks.com/showthread.php?t=84817
Thank you Kenny for spending your time to show actual data. Despite some morons who want to nit pick and put down your info I found it very valuable to start to quantify this.