"Parmas" Motor - Page 5 - Toyota Yaris Forums

Parmas · 05-10-2009, 01:31 PM

I was thinking about this oil cooler branded Flex-a-lite and includes a dual circuit and a remote fan triggered within a certain temprature threshold.

http://www.flex-a-lite.com/auto/html/remote-mount.html

Oil cooler 45901

cali yaris · 05-10-2009, 02:36 PM

that's pretty fancy! -- is your oil too hot?

Parmas · 05-10-2009, 03:05 PM

Quote:

Originally Posted by cali yaris

that's pretty fancy! -- is your oil too hot?

At least I am preventing it to be hot but as I said I am in doubt whether it will affect oil pressure.

cali yaris · 05-10-2009, 06:55 PM

Unless there is a leak, your oil pressure should be exactly the same.

Tamago · 05-10-2009, 07:26 PM

Quote:

Originally Posted by cali yaris

Unless there is a leak, your oil pressure should be exactly the same.

it depends on what part of the circuit he taps into for the cooler.

Parmas · 05-10-2009, 07:37 PM

Quote:

Originally Posted by Tamago

it depends on what part of the circuit he taps into for the cooler.

My intension of a using dual circuit oil cooler is that of using half of it after the oil pan and the other half for the transimssion.

Tamago · 05-10-2009, 08:13 PM

you're going to cool the transmission gear oil? why?

changchewsoon · 05-11-2009, 01:28 AM

i think flex-a-lite is a very good brand as well, its a good choice parmas.

since it comes with a fan controller, you could skip installing an external controller like what i did. am using a pivot super temp here.

just curious, wouldn't you rather have a dedicated cooler for each engine oil and transmission?

Parmas · 05-11-2009, 03:40 AM

Quote:

Originally Posted by changchewsoon

just curious, wouldn't you rather have a dedicated cooler for each engine oil and transmission?

You are probably right in saying this but you have to consider the limited space I have in here. I think this oil cooler with it's active cooling is capable of keeping temps as low as possible I can get. Also it would be rather more expensive to get 2 independent oil coolers than a dual circuit one.

Re: ceramic coating... I done some research and there are many that say is a good asset to own heat management. Here is quite difficult to find someone to do the job for you and I don't wish to risk sending all the parts abroad and never come back! Although I really wish this coating I will keep you updated if I could find one somewhere...

Tamago · 05-11-2009, 09:21 AM

so how are you going to pump the transmission gear oil through the cooler?

and "keeping the oil as cool as possible" is not smart. oils are designed to operate in a specific temperature range for them to be efficient. over-cool your transmission gear oil (not sure how you're going to pump it) and you'll end up with oil that just doesn't laugh, as you are heat cycling the oil constantly. leave the transmission alone, focus on the engine oil. if you want to keep oil pressures constant, i suggest cooling the oil coming OUT of the turbo (provided there is NO backpressure through the cooler).

changchewsoon · 05-11-2009, 10:24 AM

just to clarify, we're talking about manual transmission here and not automatic right?

Parmas · 05-12-2009, 03:00 PM

Quote:

Originally Posted by Tamago

so how are you going to pump the transmission gear oil through the cooler?

and "keeping the oil as cool as possible" is not smart. oils are designed to operate in a specific temperature range for them to be efficient. over-cool your transmission gear oil (not sure how you're going to pump it) and you'll end up with oil that just doesn't laugh, as you are heat cycling the oil constantly. leave the transmission alone, focus on the engine oil. if you want to keep oil pressures constant, i suggest cooling the oil coming OUT of the turbo (provided there is NO backpressure through the cooler).

The choice of cooling the transmission is scrapped since the C160 can withstand high power and it is complicated to do aswell. Probably the oil cooler will be connected between the oil pan and the turbo.

Still trying to find someone who can do ceramic coating .....

Tamago · 05-12-2009, 03:47 PM

Quote:

Originally Posted by Parmas

Probably the oil cooler will be connected between the oil pan and the turbo.

just be careful to not pressurize the return flow to the oil pan. seriously oversize those lines, as you will blow your turbo seals if there's any backpressure on the oil return line.

Parmas · 05-12-2009, 04:43 PM

Quote:

Originally Posted by Tamago

just be careful to not pressurize the return flow to the oil pan. seriously oversize those lines, as you will blow your turbo seals if there's any backpressure on the oil return line.

What size do you recommend? Would oversize effect oil pressure?

cali yaris · 05-12-2009, 07:45 PM

Quote:

you will blow your turbo seals if there's any backpressure on the oil return line.

true; done that.

Tamago · 05-13-2009, 09:27 AM

Quote:

Originally Posted by Parmas

What size do you recommend? Would oversize effect oil pressure?

if the cooler is between turbo outlet and oil pan, oversize will not affect oil pressure.

it is highly UNrecommended to restrict oil coming back from the turbo, so if you do this, size it for 3times more than flow out of the turbo.

m911gt · 05-13-2009, 11:18 AM

I hate to add a pointless post to this great thread, but I need to subscribe.

Congrats on the progress Parmas and best of luck with the rest of it.

cali yaris · 05-13-2009, 01:28 PM

I want to see this car on the road soon. Please.

05-10-2009, 02:36 PM	#74
cali yaris ULTIMATE View User's Garage Drives: 07 Yaris Turbo Join Date: May 2007 Location: Canoga Park, CA Posts: 14,859	that's pretty fancy! -- is your oil too hot? __________________ Micro Image forums, online store and shop are now closed. It was a great eight year run, but it was time to focus on other things. I'm still selling parts on eBay under micro*image seller ID and customers can still make requests for anything specific.

05-10-2009, 06:55 PM	#76
cali yaris ULTIMATE View User's Garage Drives: 07 Yaris Turbo Join Date: May 2007 Location: Canoga Park, CA Posts: 14,859	Unless there is a leak, your oil pressure should be exactly the same. __________________ Micro Image forums, online store and shop are now closed. It was a great eight year run, but it was time to focus on other things. I'm still selling parts on eBay under micro*image seller ID and customers can still make requests for anything specific.

05-11-2009, 01:28 AM	#80
changchewsoon View User's Garage Drives: Vios Turbo Join Date: Feb 2009 Location: Malaysia Posts: 190	i think flex-a-lite is a very good brand as well, its a good choice parmas. since it comes with a fan controller, you could skip installing an external controller like what i did. am using a pivot super temp here. just curious, wouldn't you rather have a dedicated cooler for each engine oil and transmission? __________________ 454 whp, 1.7 bar boost, pump gas, water/meth. 501 whp, 2.2 bar boost, pump gas + avgas, no water/meth. www.viosturbo.com - World's first 500 WHP 1NZ-FE

05-11-2009, 10:24 AM	#83
changchewsoon View User's Garage Drives: Vios Turbo Join Date: Feb 2009 Location: Malaysia Posts: 190	just to clarify, we're talking about manual transmission here and not automatic right? __________________ 454 whp, 1.7 bar boost, pump gas, water/meth. 501 whp, 2.2 bar boost, pump gas + avgas, no water/meth. www.viosturbo.com - World's first 500 WHP 1NZ-FE

05-13-2009, 11:18 AM	#89
m911gt Carless in Chicago View User's Garage Drives: 08 Blk LB Join Date: Oct 2008 Location: Chicago Posts: 2,479	I hate to add a pointless post to this great thread, but I need to subscribe. Congrats on the progress Parmas and best of luck with the rest of it. __________________ Wanted: Forced Induction Some say that he is the secret love child of Ferrari and Porsche, and others say that he would lap James May twice in a 1/4 mile drag race. All we know is that he is called The Stig.

05-13-2009, 01:28 PM	#90
cali yaris ULTIMATE View User's Garage Drives: 07 Yaris Turbo Join Date: May 2007 Location: Canoga Park, CA Posts: 14,859	I want to see this car on the road soon. Please. __________________ Micro Image forums, online store and shop are now closed. It was a great eight year run, but it was time to focus on other things. I'm still selling parts on eBay under micro*image seller ID and customers can still make requests for anything specific.

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