Visco vs Elektriese Fan

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Borntofish
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Visco vs Elektriese Fan

Post by Borntofish »

Ek dink daaran om my Visco te laat gaan en vervang met 'n elektriese van. My rede hiervoor is dat my nuwe 4y baie koud loop, net oor die 70 grade.

Die rede hievoor is dat ek die radiator na 'n 4 core toe verander het met die ou 22R.

Dink julle elektries sal beter wees as die visco, of moet ek maar eerder daarvan vergeet.
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Re: Visco vs Elektriese Fan

Post by JohanM »

Ek sal voorstel om die radiator wat in is te vervang met `n std 4Y Radiator! Die koste om die viscous te replace met elektries en dan mooi als reg te kry is meer as a ander radiator.

Ek het `n ou 4Y radiator wat daar buite in die rommel stoor le. Hy kort net `n goeie skoonmaak en miskien `n diens by silvertons. Ek sal die radiator vir jou verniet gee. :thumbup: :thumbup: Ek moet hom net in Parys gaan haal einde van die maand. :wink:
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Re: Visco vs Elektriese Fan

Post by ThysdJ »

Maar Johan, as hy elektries gaan gain hy 2kW se krag, wat beteken hy verdubbel amper die 4Y se output... :twisted: :twisted: :twisted: :twisted:
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Re: Visco vs Elektriese Fan

Post by CasKru »

Werner... vra bietjie vir Bennie... hy sal vir jou 'n goeie antwoord gee. Maar as ek jy was.. bly by die viscous
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Re: Visco vs Elektriese Fan

Post by Mr_B »

Hi Borntofish,

I tried the viscous to electric fan mod, while i did gain a few horses, I hated it in offroad conditions, I found that the fan ran too much, was pretty noisy, and the heat gauge was always going up or down, never stuck at one place like with a viscous coupling(I'm sure the constant heat fluctuations are not good for any engine). I will admit that my installation was not the best, in my setup the elec fan was either off or 100% on. Alan(Hoppy) always told me that a 2 stage system (with a ballast resistor(I think??)) was the right way to do it, so the fan can run either half or full power as conditions require.

Please correct me if I'm wrong, but shouldn't the thermostat regulate coolant flow and therefore temp?? Is it not possible the thermostat is stuck open??

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Last edited by Mr_B on Thu Jan 15, 2009 2:29 pm, edited 1 time in total.
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Re: Visco vs Elektriese Fan

Post by JohanM »

Kaspaas wrote:Maar Johan, as hy elektries gaan gain hy 2kW se krag, wat beteken hy verdubbel amper die 4Y se output... :twisted: :twisted: :twisted: :twisted:
Ja Thys, maar as jy dit doen dan raak daai "mobile roadblock" hopeloos te vinning en veroorsaak dalk net `n verkeers opeenhoping!!! :twisted: :twisted: :twisted:
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Re: Visco vs Elektriese Fan

Post by Borntofish »

I also thought that the termostat should regulate the engine temperature. I have replaced the imported on with a genuine Toyota one. I think the CFM on the radiator is to high. I can see the thermostat open on about 80 degrees and then the temp falls back to about 71 on the open road. In town is reaches about 77.
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Re: Visco vs Elektriese Fan

Post by Borntofish »

Thys, ek weet nie of so baie krag sal kan hanteer in die ou Bakkie nie!
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Re: Visco vs Elektriese Fan

Post by JohanM »

Indeed does the thermostat regulate the engine cooling and temperature!!! The problem is that you are currently experiencing overcooling on your Lux. This I would say is due to the 4 Core radiator and would advise you to go back to the STD 2 core radiator.

The thermostat keeps the coolant under pressure, which again entails that the boiling point is raised combined with the antifreeze in the system. Therefore it is not advised to drive without a thermostat as it cannot regulate the temperature.
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Re: Visco vs Elektriese Fan

Post by BenHur »

Rather get a higher temp thermostat. Also try restricting the waterflow out of the radiator a bit so that the flow in the system slow down a bit. If that does not work change radiator to the stock one again.

I was always the on who was pro electric fan for any vehicle, but I was the one to swallow my words and tell Bretton to go back to viscose, the difference at Low RPM made up for the HP or 2 you loose on top.

Will I go viscose on the 7M? I doubt due to space problems but on a 4Y / 22R I will not recommend going Electric.
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Re: Visco vs Elektriese Fan

Post by JohanM »

Werner, laat weet my maar as jy die 4Y Radiator soek. Dit was my Hilux sin gewees, maar het besluit om te replace met `n nuwe een toe ek die enjin oor gedoen het.

Jy kan hom verniet kry, maar sal net moet wag tot maand eiende wat ek plaas toe gaan om dit te gaan haal vir jou!
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Re: Visco vs Elektriese Fan

Post by Werner »

My pa het nou onlangs met 'n ou gepraat met 'n 22R motor wat 'n elektriese fan opgesit het (BMW fan maar raai hom aan om die Camry fan op te sit). Die ou het gesê dat vandat hy dit gedoen het trek die bakkie baie beter en sy petrol verbruik het opgegaan van 6km/l tot 9km/l. Het glo die strokies om dit te bewys......is dit moontlik?

So my pa dink nou daaraan om dit te doen.

Die ou sê omdat hy die fan belt verwyder het wat om die visco fan loop het dit so groot verskil gemaak. :shock:
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Re: Visco vs Elektriese Fan

Post by CasKru »

Ek dink as jy die bakkie op die teer hou is elektries seker die pad om te gaan maar soos Bennie genoem het offroad wil jy 'n viscous he :)

Soos ek verstaan pas 'n BMW X5 se fan mooi in die 22R se radiator housing maar jy sal self brackets moet bou om hom daar te hou.
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Re: Visco vs Elektriese Fan

Post by BenHur »

6 - 9 km/l klink bietjie optimisties. My petrol verbruik op di Pajero wissel ook soms van 6-7.5 tank to tank sonder dat ek iets anders doen, dit hang net af van hoe ek bestuur en hoe lyk die verkeer.
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Re: Visco vs Elektriese Fan

Post by Borntofish »

Dankie Johan. Ek sal die Radiator van jou hande af neem. Jy kan my e-mail by Borntofish@vodamail.co.za
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Re: Visco vs Elektriese Fan

Post by Borntofish »

Ek ry baie min offroad met die bakkie. Al wanneer hy offroad sien is as ek by Kosi baai op die sandpad na die kamp toe moet ry. Die res is als teerpad. (Begin soos 'n Sandton bakkie klink) So ek begin dink die elektriese roete gaan die een wees om te vat. Ek ry altyd 500km teerpad voordat ek by 4x4 wereld uitkom.
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Re: Visco vs Elektriese Fan

Post by JohanM »

Borntofish wrote:Dankie Johan. Ek sal die Radiator van jou hande af neem. Jy kan my e-mail by Borntofish@vodamail.co.za
Werner dit is reg so. Ek gaan die laaste naweek van die maand Parys toe, dan sal ek dit vir jou saambring, dan kan ons net reel dat jy dit kom haal.
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Re: Visco vs Elektriese Fan

Post by Spartan »

Werner
Ek hoop jy het al reg gekom maar as jy meer teer ry as off-road kan jy maar die elektriese fan insit, jy kan ook kyk na die 2.7 Hilux se rediator, hulle werk soos n droom sorg net dat jou fan switch op die onderste waterpyp gekoppel is. Jou fan switch moet so +- 10 grade hoer wees as jou thermostate. Die BMW fan is ietwat duur maar werk baie goed, hy is plat en het 'n lekker lugvloei. Ons hardloop die 2JZ GTE, 2JZ GE, 7M GTE en 7M GE op die mannier en het geen probleem met die hitte nie bly net weg van die koper rediators af as jy die electric fan doen, infact bly ver weg van hulle af in elk geval, die aluminium is maar beter. Laat maar weet wat is jou ondervinding. As jy nie reg kom nie sal ek jou 'n nommer van my broer gee ek is so bietjie ver, sit in Saudi Arabia. :wink: 8 )
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