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Rb20 Det And Oil Cooler Questions

yoshiii335

By yoshiii335,
in Engines & Forced Induction

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yoshiii335 Rising Star

yoshiii335

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Posted

Hello

I have a r32 gts-t.

Ive read that the oil pump, or something like that, is weak on the RB20 det the same as it is on the RB26 dett. Is this true?

Also Ive read that the rb25 det and the rb26 dett have stock factory oil coolers built in. Is this true?

If I am uping my boost and tuning the car to go over 300hp, should I invest in a oil cooler?

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R_34 Community Regular

R_34

Posted
Posted

Even for a stock RB20 there sould have an oil cooler. The RB20 is one of the only turbo engine I know coming from factory without any oil cooler at all. :(

WTF nissan ?

I installed an oil filter bracket of a RB25 and the factory oil cooler of the CA which is bigger than the one of the RB25.

The oil heat up to 85°C pretty fast, and stays between 85 and 100°C as long as I don't go berserk. When I hit the gas pedal and the use the whole rev range the oil climb to 120°C in 10 mins or so on the road.

So even with a factory oil cooler bigger than the RB25 unit I still have my oil temp too high.

I bought a 16 row mocal oil cooler with a 92°C thermorstat. I should install it next week. I hope it will be sufficient to keep the oil within 120°C on track.

R_34 Community Regular

R_34

Posted
Posted

No factory oil cooler with a turbo is rare for what I know. As soon as it's a "performance" engine most of the time an oil cooler is installed.

On my daily driver I don't have an oil cooler but it's a N/A 2L motor with only 130 hp@ the fly stock. But the 2.3L N/A 160 hp engine have one.

XRATED Veteran

XRATED

Posted
Posted

Hello

I have a r32 gts-t.

Ive read that the oil pump, or something like that, is weak on the RB20 det the same as it is on the RB26 dett. Is this true?

Also Ive read that the rb25 det and the rb26 dett have stock factory oil coolers built in. Is this true?

If I am uping my boost and tuning the car to go over 300hp, should I invest in a oil cooler?

....considering an aftermarket oil pump will cost more than a good condition rb20, just keep it off the limiter as much as you can and don't worry too much about it. Odds are something else will fail before t he oil pump in a factory 20.

Yeah, but they are coolant/oil heat exchangers.... not air/oil heat exchangers. As above, invest in a good oil cooler system... spend good money on the adapter block/thermostat and lines... if you need to save some money anywhere, buy a cheap core. They work almost as well, but when you trash an engine they need to be replaced (you can't clean them out like everything else) and they damage easily. I use greddy thermostat sandwich plate's, compact and work well.

If your worried about oil control, have a good read of the oil control thread.

....I have a soft spot for rb20's

J.

KiwiRS4T Grand Master

KiwiRS4T

Posted
Posted

Hello

I have a r32 gts-t.

Ive read that the oil pump, or something like that, is weak on the RB20 det the same as it is on the RB26 dett. Is this true?

Also Ive read that the rb25 det and the rb26 dett have stock factory oil coolers built in. Is this true?

If I am uping my boost and tuning the car to go over 300hp, should I invest in a oil cooler?

You'll have to do more than up your boost to hit 300hp. Why not just get an RB25 (preferably a Neo) and go from there?

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