Radiator fan conversion
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Racer
Joined: Sep 2018
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From: California
Radiator fan conversion
Now that most of the mechanical fixes are almost done..I was thinking..is an electric fan conversion worth it?
99 ls
99 ls
Last edited by Sin1UZFE; May 4, 2019 at 06:04 PM.
Racer
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From: SoCal mtns.
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From: CALIFORNIA
What I don't like is (if I am correct on this) is the electric fans "pull" the air instead of pushing the air through the radiator.
Anyone try sucking out a lit match? It doesn't work too well...thats why your vacuum cleaner must go screaming high RPMs to work.
From an airflow.perspective, blowing out the match is quite easy...
However, the current configuration provides airflow over the block and exhaust manifolds..
The engine bears the load of constantly spinning, accelerating and decelerating a heavy fan clutch and airflow generation.
Electric fan(s) would save H.P. and decrease fuel.consumption and emissions.
A 130A alternator would be required (more power under the curve)
Have seen a few kits, but they appear low budget splice and dice without adequate temperature sensing.
Plug and play would be big.
Would free up.about 10.HP and less wear on fan bracket bearing...
Less noise on start up
Anyone suggest an engineered solution?
Last edited by YODAONE; May 4, 2019 at 05:53 PM.
Thread Starter
Racer
Joined: Sep 2018
Posts: 1,391
Likes: 66
From: California
Following Toyota's lead, the LS430.uses electric fans.
What I don't like is (if I am correct on this) is the electric fans "pull" the air instead of pushing the air through the radiator.
Anyone try sucking out a lit match? It doesn't work too well...thats why your vacuum cleaner must go screaming high RPMs to work.
From an airflow.perspective, blowing out the match is quite easy...
The engine bears the load of constantly spinning, accelerating and decelerating a heavy fan clutch and airflow generation.
Electric fan(s) would save H.P. and decrease fuel.consumption and emissions.
A 130A alternator would be required (more power under the curve)
Have seen a few kits, but they appear low budget splice and dice without adequate temperature sensing.
Plug and play would be big.
Would free up.about 10.HP.
Less noise on start up
Anyone suggest an engineered solution?
What I don't like is (if I am correct on this) is the electric fans "pull" the air instead of pushing the air through the radiator.
Anyone try sucking out a lit match? It doesn't work too well...thats why your vacuum cleaner must go screaming high RPMs to work.
From an airflow.perspective, blowing out the match is quite easy...
The engine bears the load of constantly spinning, accelerating and decelerating a heavy fan clutch and airflow generation.
Electric fan(s) would save H.P. and decrease fuel.consumption and emissions.
A 130A alternator would be required (more power under the curve)
Have seen a few kits, but they appear low budget splice and dice without adequate temperature sensing.
Plug and play would be big.
Would free up.about 10.HP.
Less noise on start up
Anyone suggest an engineered solution?
Which 130a alternator do you suggest?
Last edited by Sin1UZFE; May 4, 2019 at 05:55 PM.
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Pole Position
Joined: Nov 2014
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From: CALIFORNIA
See:
https://www.clublexus.com/forums/ls-...r-upgrade.html
Should be plug and play on 1995-2000 LS400.
1990 - 1994 LS400 will.require different wiring harness side connector shell. Not sure if connector contacts are the same...Check with Lexus
Last edited by YODAONE; May 4, 2019 at 06:06 PM.
Thread Starter
Racer
Joined: Sep 2018
Posts: 1,391
Likes: 66
From: California
2001 -2003 LS430 alternator;
See:
https://www.clublexus.com/forums/ls-...r-upgrade.html
Should be plug and play on 1995-1997 LS400.
1990 - 1994 LS400 will.require different wiring harness side connector shell. Not sure if contacts are the same...
See:
https://www.clublexus.com/forums/ls-...r-upgrade.html
Should be plug and play on 1995-1997 LS400.
1990 - 1994 LS400 will.require different wiring harness side connector shell. Not sure if contacts are the same...
Thread Starter
Racer
Joined: Sep 2018
Posts: 1,391
Likes: 66
From: California
Lexus Test Driver
Joined: Apr 2012
Posts: 6,278
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From: Long Island
you know the 430 in a sense makes less power than the 400 since its bigger engine makes the same figure... and as we know from the recent JBrady post the 400 outperforms the 430 anyway so idk how much of a difference you expect this to make
also there's an additional electric fan in front of the radiator for when you're going slowly and using the A/C on a hot day so all of the cooling needs are already met
i'm still curious to see what happens if you do decide to do this lol
also there's an additional electric fan in front of the radiator for when you're going slowly and using the A/C on a hot day so all of the cooling needs are already met
i'm still curious to see what happens if you do decide to do this lol
CL Community Team
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From: 565 St Peter NOLA
CL Community Team
Joined: Dec 2005
Posts: 2,715
Likes: 830
From: 565 St Peter NOLA