Oil Cooler and PS Cooler Install - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

DRFT180 · 07-11-2007, 02:15 PM

I've posted this on ka-t.org, but decided to throw it on here for those who don't visit that site.

Here's my latest finished projects. Due to my coolant temps with no oil cooler at my last lapping day, a change was needed if I wanted to beat on the car all day and have peace of mind.

First the coolers
For oil I decided to use a stock FC RX-7 oil cooler because of the size and wide use by many other road racers and it was available from a local junkyard. From some measuring it comes out to be 202ci, which is pretty big in comparison to other stock coolers and most aftermarket ones.
All fitting are Russell and lines are -10 stainless

Time to cut and fit the oil cooler. I decided the best place to mount it would be directly behind the bumper support above my intercooler. I wanted to keep the bumper support because the car is still daily driven and wanted to cut it in a way to serve as ducting.

Now the oil cooler in place

top view

My two longest lines, third short line was already in place

Relocation placement

Lines to block adaptor

I decided to use a Hayden four row transmission cooler for my power steering
Here it is in placed infront of the radiator

Since I have a JGS kit and no PS relocation bracket I had the resivour ziptied to my intercooler pipe and 2in from the compressor housing = not good. So I went ahead and moved it to the corner of the engine bay by the clutch master cylinder.

The cut bumper with everything done

Completed

The results have been awesome. Before the coolers, during a 15 minute lapping session I could only go about 3 laps full out before starting to overheat and would have to back off, and half of the engine bay would be soaked in ATF from the PS resivour.

Now after, I could do a 20 minute session without worrying about temps until after 10+ laps. And then all it takes is one cool down lap and I'm back at it. Also not one hint of ATF out of the resivour. I'm very pleased with the results.

Wahl 136 · 07-11-2007, 02:27 PM

Nice write up!

Nikeboy355 · 07-11-2007, 02:31 PM

Thanks... I really like the placement of the oil cooler...

BattleRoyale · 07-11-2007, 03:31 PM

nice write up, the oil cooler looks huge

arkive43 · 07-11-2007, 04:55 PM

yea the fc oil cooler is as big as most intercoolers. i was gona do the same but decided no to because its over kill on a na motor i plan on gettin a four row oilcooler instead...

stevebsvs · 07-11-2007, 05:24 PM

man, this mofo an his dam 3.5 cyls!!!!

quit jocking fc's!!!!

^^MAN, LOOK AT THAT MIDDLE TOE!!! WTF....^^

Dousan_PG · 07-11-2007, 06:42 PM

sweet setup
thank u for going AN and not hose clamp crap

shit is solid!!!

btw what size hose for the PS setup? i am ordering a cooler and too lazy to look it up. hand feed me mommy!
lmk!

Sir · 07-11-2007, 10:25 PM

small one is 3/8 large is 5/8
depending which hose you choose.
I did same thing and took off the stock loop cooler and ran AN lines from the rack to the cooler and regular hose back. AN hose isn't needed, but I needed to order the 16x1.5 o-ring fitting that fits the rack anyway.

Either way, looking good. I see you don't run oil thermostat, so how long does it take you to warm up???

DRFT180 · 07-11-2007, 11:13 PM

The FC oil cooler has a thermostat already in it. So there is some money you can save.

Oh and the price breakdown:

oil cooler -$20
Lines and fittings - $220 (had about 6ft extra, so could have been under $200)
Relocation - $20
PS cooler - $20

total = $280

not bad at all, just takes some time

funds are a little short now, so no oil pressure or temp gauge as of yet.

vutony · 07-12-2007, 12:43 AM

Quote:

Lines and fittings - $220 (had about 6ft extra, so could have been under $200)

dam lines, they cost too much

AzNCmB · 07-12-2007, 12:48 AM

Quote:

Originally Posted by vutony

dam lines, they cost too much

gotta pay to have quality....

nice write up lance...
i gotta get my oil cooler shit on to0....

i wana switch out my cooler to something with an internal thermostat just like those fc coolers...but i dont want something that long...

do anyone out there know what other oem manufactured oil cooler cores that has an internal thermostat but a little bit smaller core....

something small enough to put in the bumper, passenger side air dam of the stock s14/jdm navan bumper??

lmk, thanks

slideways2004 · 07-12-2007, 05:40 AM

Quote:

Originally Posted by DRFT180

The FC oil cooler has a thermostat already in it. So there is some money you can save.

Oh and the price breakdown:

oil cooler -$20
Lines and fittings - $220 (had about 6ft extra, so could have been under $200)
Relocation - $20
PS cooler - $20

total = $280

not bad at all, just takes some time

funds are a little short now, so no oil pressure or temp gauge as of yet.

where did you get your relocation kit from? link?

also, how much more oil capacity do you have after this setup?

nlzmo400r · 07-12-2007, 06:48 AM

Quote:

Originally Posted by AzNCmB

gotta pay to have quality....

nice write up lance...
i gotta get my oil cooler shit on to0....

i wana switch out my cooler to something with an internal thermostat just like those fc coolers...but i dont want something that long...

do anyone out there know what other oem manufactured oil cooler cores that has an internal thermostat but a little bit smaller core....

something small enough to put in the bumper, passenger side air dam of the stock s14/jdm navan bumper??

lmk, thanks

Kim, the FD has a smaller more square oil cooler (actually the R1 models have twin oil coolers, one on each side of the bumper) and I believe it has the same internal thermostat as the FC one. Go to rx7club.com and click the 3rd gen forum and go to parts for sale.

DRFT180 · 07-12-2007, 10:12 AM

Quote:

Originally Posted by slideways2004

where did you get your relocation kit from? link?

also, how much more oil capacity do you have after this setup?

Links:
The block adapter- http://store.summitracing.com/partde...0&autoview=sku

The single filter adapter- http://store.summitracing.com/partde...0&autoview=sku

Oil capacity is right at 5 quarts now.

tknbkthrsdy4anfg · 07-12-2007, 10:16 AM

The p.s. cooler is on the low pressure side right?
I could imagine those little hose clamps blowing off on the high pressure side.

Dousan_PG · 07-12-2007, 10:21 AM

yes u run the cooler on the low pressure side.

*slider2828* · 07-12-2007, 03:53 PM

Another quick question about the ps cooler. Ok so I understand you replace the loop on the low pressure side, but you said you don't need AN lines? So you can replace the loop from which point to which point? Can I just use oil lines instead? Thanks

Secondly, does anyone know what size AN lines Greddy Uses on their oil coolers? I need to replace my cooler cause it is leaking. THanks!

DRFT180 · 07-12-2007, 05:45 PM

I did not replace the stock loop, but put the cooler in line between the loop and the resivour. If you take the loop out than what's the point of the cooler.

You're putting in one cooler and taking out one.
Right back where you started

FRpilot · 07-12-2007, 05:50 PM

i would think you take out that long unnecessary loop and add a more efficient cooler core like you did to make things cleaner.

BustedS13 · 07-12-2007, 05:56 PM

somebody was saying you run risky low oil pressure with a relocation kit and/or cooler.... anybody have any input on this? i'm planning to put in both an oil cooler and ps cooler when i drop in the new ka.

*slider2828* · 07-12-2007, 05:57 PM

Damn that oil cooler fits so sexy man I swear, but it really weakens the structure of the bumper reenforcement.

Dousan_PG · 07-12-2007, 08:14 PM

bumper support isnt need anyways
most fmics u dump it or cut the hell out of it

gunluvS14 · 07-12-2007, 08:34 PM

very nice!!!

DRFT180 · 07-13-2007, 12:00 AM

Quote:

Originally Posted by FRpilot

i would think you take out that long unnecessary loop and add a more efficient cooler core like you did to make things cleaner.

The stock loop is not unnecessary, it acts as a PS cooler.

nlzmo400r · 07-13-2007, 06:54 AM

Quote:

Originally Posted by Dousan_PG

bumper support isnt need anyways
most fmics u dump it or cut the hell out of it

but actually if you look at the way lance cut the support, it didnt really weaken it much at all. It would be the same as swiss cheesing the support. As long as the edge metal isnt cut away (so that the bumper support retains its same outter deminsions) it doesnt get that muc weaker, just a lot lighter.

Sir · 07-13-2007, 09:07 AM

Quote:

Originally Posted by DRFT180

I did not replace the stock loop, but put the cooler in line between the loop and the resivour. If you take the loop out than what's the point of the cooler.

You're putting in one cooler and taking out one.
Right back where you started

Nope. The stock tube "cooler" is POS thats got gunk and shit all over it vs a tube and fin cooler with lots of airflow.
You're waaaaaaaaaay better off.

Quote:

Originally Posted by DRFT180

The stock loop is not unnecessary, it acts as a PS cooler.

on a stock system - yes, you need it. But its just a hard line, if you add a proper cooler to the system, it doesn't effect anything.

trybal · 07-13-2007, 10:06 AM

and where does your clutch fluid go? lol

*slider2828* · 07-13-2007, 10:42 AM

I use the JDM front bumper support and since it is thinner than the USDM, I don't think I am going to cut that any thinner. But yah, where does the PS cooler connect to? and hey Dousan PG, do you know the size of the greddy oil cooler lines? Thanks!

Sir · 07-13-2007, 10:55 AM

PS cooler goes between the rack and reservoir on the low pressure side. Follow the 3/8 line from reservoir down to stock loop cooler. that goes into the rack.

DRFT180 · 07-13-2007, 11:37 AM

Quote:

Originally Posted by trybal

and where does your clutch fluid go? lol

It's still there, you can see the hard lines
Just a weird angled picture

07-11-2007, 02:15 PM	#1
DRFT180 Zilvia Addict Join Date: Nov 2003 Location: Louisiana Posts: 655 Trader Rating: (7) Feedback Score: 7 reviews	Oil Cooler and PS Cooler Install I've posted this on ka-t.org, but decided to throw it on here for those who don't visit that site. Here's my latest finished projects. Due to my coolant temps with no oil cooler at my last lapping day, a change was needed if I wanted to beat on the car all day and have peace of mind. First the coolers For oil I decided to use a stock FC RX-7 oil cooler because of the size and wide use by many other road racers and it was available from a local junkyard. From some measuring it comes out to be 202ci, which is pretty big in comparison to other stock coolers and most aftermarket ones. All fitting are Russell and lines are -10 stainless Time to cut and fit the oil cooler. I decided the best place to mount it would be directly behind the bumper support above my intercooler. I wanted to keep the bumper support because the car is still daily driven and wanted to cut it in a way to serve as ducting. Now the oil cooler in place top view My two longest lines, third short line was already in place Relocation placement Lines to block adaptor I decided to use a Hayden four row transmission cooler for my power steering Here it is in placed infront of the radiator Since I have a JGS kit and no PS relocation bracket I had the resivour ziptied to my intercooler pipe and 2in from the compressor housing = not good. So I went ahead and moved it to the corner of the engine bay by the clutch master cylinder. The cut bumper with everything done Completed The results have been awesome. Before the coolers, during a 15 minute lapping session I could only go about 3 laps full out before starting to overheat and would have to back off, and half of the engine bay would be soaked in ATF from the PS resivour. Now after, I could do a 20 minute session without worrying about temps until after 10+ laps. And then all it takes is one cool down lap and I'm back at it. Also not one hint of ATF out of the resivour. I'm very pleased with the results.

07-11-2007, 05:24 PM	#6
stevebsvs Zilvia Member Join Date: Jul 2002 Location: New Orleans, LA Age: 41 Posts: 211 Trader Rating: (0) Feedback Score: 0 reviews	man, this mofo an his dam 3.5 cyls!!!! quit jocking fc's!!!! ^^MAN, LOOK AT THAT MIDDLE TOE!!! WTF....^^ __________________

07-11-2007, 06:42 PM	#7
Dousan_PG Post Whore! Join Date: May 2002 Location: Orange County, California Age: 42 Posts: 16,640 Trader Rating: (23) Rides Gallery: Dousan_PG Feedback Score: 23 reviews	sweet setup thank u for going AN and not hose clamp crap shit is solid!!! btw what size hose for the PS setup? i am ordering a cooler and too lazy to look it up. hand feed me mommy! lmk! __________________ Aaron Pink GodziRa www.geocities.com/pink_godzira

07-12-2007, 10:21 AM	#16
Dousan_PG Post Whore! Join Date: May 2002 Location: Orange County, California Age: 42 Posts: 16,640 Trader Rating: (23) Rides Gallery: Dousan_PG Feedback Score: 23 reviews	yes u run the cooler on the low pressure side. __________________ Aaron Pink GodziRa www.geocities.com/pink_godzira

07-12-2007, 05:56 PM	#20
BustedS13 Post Whore! Join Date: Jan 2004 Location: Phoenix AZ Age: 36 Posts: 10,287 Trader Rating: (0) Feedback Score: 0 reviews	somebody was saying you run risky low oil pressure with a relocation kit and/or cooler.... anybody have any input on this? i'm planning to put in both an oil cooler and ps cooler when i drop in the new ka. __________________

07-11-2007, 02:27 PM	#2
Wahl 136 BANNED Join Date: Feb 2006 Location: Not Cali! :-P Posts: 433 Trader Rating: (0) Feedback Score: 0 reviews	Nice write up!

07-11-2007, 02:31 PM	#3
Nikeboy355 Zilvia Addict Join Date: Mar 2004 Location: Los Angeles, CA Age: 41 Posts: 734 Trader Rating: (0) Feedback Score: 0 reviews	Thanks... I really like the placement of the oil cooler...

07-11-2007, 03:31 PM	#4
BattleRoyale Leaky Injector Join Date: Sep 2005 Location: moon Posts: 83 Trader Rating: (0) Feedback Score: 0 reviews	nice write up, the oil cooler looks huge

07-11-2007, 04:55 PM	#5
arkive43 Zilvia Addict Join Date: Sep 2006 Location: houston Age: 38 Posts: 795 Trader Rating: (0) Feedback Score: 0 reviews	yea the fc oil cooler is as big as most intercoolers. i was gona do the same but decided no to because its over kill on a na motor i plan on gettin a four row oilcooler instead...

07-11-2007, 11:13 PM	#9
DRFT180 Zilvia Addict Join Date: Nov 2003 Location: Louisiana Posts: 655 Trader Rating: (7) Feedback Score: 7 reviews	The FC oil cooler has a thermostat already in it. So there is some money you can save. Oh and the price breakdown: oil cooler -$20 Lines and fittings - $220 (had about 6ft extra, so could have been under $200) Relocation - $20 PS cooler - $20 total = $280 not bad at all, just takes some time funds are a little short now, so no oil pressure or temp gauge as of yet.

07-12-2007, 03:53 PM	#17
slider2828 Premium Member Join Date: Oct 2004 Location: San Francisco, CA Posts: 5,824 Trader Rating: (13) Feedback Score: 13 reviews	Another quick question about the ps cooler. Ok so I understand you replace the loop on the low pressure side, but you said you don't need AN lines? So you can replace the loop from which point to which point? Can I just use oil lines instead? Thanks Secondly, does anyone know what size AN lines Greddy Uses on their oil coolers? I need to replace my cooler cause it is leaking. THanks!

07-12-2007, 05:45 PM	#18
DRFT180 Zilvia Addict Join Date: Nov 2003 Location: Louisiana Posts: 655 Trader Rating: (7) Feedback Score: 7 reviews	I did not replace the stock loop, but put the cooler in line between the loop and the resivour. If you take the loop out than what's the point of the cooler. You're putting in one cooler and taking out one. Right back where you started

07-12-2007, 05:57 PM	#21
slider2828 Premium Member Join Date: Oct 2004 Location: San Francisco, CA Posts: 5,824 Trader Rating: (13) Feedback Score: 13 reviews	Damn that oil cooler fits so sexy man I swear, but it really weakens the structure of the bumper reenforcement.

07-12-2007, 08:14 PM	#22
Dousan_PG Post Whore! Join Date: May 2002 Location: Orange County, California Age: 42 Posts: 16,640 Trader Rating: (23) Rides Gallery: Dousan_PG Feedback Score: 23 reviews	bumper support isnt need anyways most fmics u dump it or cut the hell out of it __________________ Aaron Pink GodziRa www.geocities.com/pink_godzira

07-12-2007, 08:34 PM	#23
gunluvS14 Zilvia Member Join Date: May 2006 Location: ga Posts: 206 Trader Rating: (0) Feedback Score: 0 reviews	very nice!!!

07-13-2007, 10:06 AM	#27
trybal Zilvia Junkie Join Date: Nov 2005 Location: Seattle wa Posts: 299 Trader Rating: (0) Feedback Score: 0 reviews	and where does your clutch fluid go? lol

07-13-2007, 10:42 AM	#28
slider2828 Premium Member Join Date: Oct 2004 Location: San Francisco, CA Posts: 5,824 Trader Rating: (13) Feedback Score: 13 reviews	I use the JDM front bumper support and since it is thinner than the USDM, I don't think I am going to cut that any thinner. But yah, where does the PS cooler connect to? and hey Dousan PG, do you know the size of the greddy oil cooler lines? Thanks!

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