why not add an oil cooler pre turbo?

[emarsh]

It would seem like a good idea to have an low pressure drop type oil cooler just before the turbo to help in the cooldown/shutdown proceedure? Is there a reason this would not be a good idea?

 

[HEMI®Dart]

Correct me if I'm wrong....

..... but it's not the oil going into the turbo that is hot, its the oil already in the turbo's bearings is where the heat is. You want to keep pumping engine oil thru it to dissapate the heat built-up in the turbochargers bearings.

 

[RJOL]

It's an interesting idea, but wouldn't it just be a lot easier to install an EGT gauge and monitor the temp for below 300 on shutdown. You know what the temp is, and you have an EGT guage to give you temps for other situations, like heavy towing...

 

[Marco]

Good idea

While I had a stock HO engine on a engine dyno I noticed the oil temperature reach 226°F. The probe was placed in the bottom of the pan.

Turn up the power some... . away the temp went to 248°F.



I think that adding an oil cooler isn't a bad idea. Mostly if the engine is BOMBed a little.



In fact my next project for my 'lil babe is an oil cooler... .



Oh, yeah, here is another one for you Cummin hummin guys.

The Duramaxipad had stock oil temps up to 260°F. :--)

Guess which is the better engine for me... ... ... ... ... ... .....



Marco

 

[Evan A. Beck]

For those who don't know, the ISB already has an oil cooler. But adding one isn't a bad idea. Plus, it would add a little bit of capacity too.

 

[Brandon]

anyone that has an engine on a dyno is a king in my book... .....





marco was it a crate engine or out of a truck... ... ...





putting an engine on a dyno is impressive. What was the horsepower of a stock eth at the flywheel

 

[PZicha]

I,m thinking of getting an oil cooler and hooking fans like on the back of your computor to it controling them from the dash . I think this after a good hot run with the hood up and the fans on would cool the oil down quicker , I have hooked a Amsoil bypass system up (My Truck) and am thinking of connecting one into the system

 

[Marco]

The engine came out of a 2001. 5 ETH.

HP numbers were as advertised by Cummins. Well almost, 243 Hp instead of 245. That's a VERY GOOD number!



The D-Max had only 257 Hp but is advertised @ 300.

I suspect that the D-Max has some kinda "Break in" software stuffed somewhere into it's PCM.



Marco



P. S. I'm NOT a king! Just doin' my thing here to earn money.

 

[Brandon]

who had the guts to pull a dmax and put it on an engine dyno?????



that seems like a lot a work when you could just use a chassis dyno

 

[Marco]

That was me

We needed to obtain the Euro 3 emissions certification.



For the European standard an vehicle above 6170 Lbs can't be tested on a chassis dyno. So we had to go on the engine dyno.

(Was the same for the Cummins)



And yes it was a PITA to get the D-Max running on the dyno. The Cummins was much easier.



Marco

 

[JJW_ND]

A word of caution on adding an oil cooler. What would be the negative side of haveing an oil cooler for the 99% of the normal driving miles when not running on a dyno or 1/4 mile drags?



With a totally stock oil system (no bypass, etc) in a 96 5sp, with NO engine fan, Gettmann winter front installed directly in front of the radiator, Air temps have to be over 30 degrees to get oil temps over 175. (Oil Temp Probe in the port above filter housing).



When air temps are below zero oil temps stay at 170 to 175. This is allittle cool IMO already. What is an oil cooler going to do?



I have not been able to get my oil temps over 215 pulling extreme loads on open country. Maybe a 6% MT pass that goes on for miles might do it.



I would think the coolant would be well into the RED before the oil gets above 220.



Would be curious to here what standby or stationary Cummins B engines have to put up with for Oil temps. Lots of extra cooling available in over the road applications.



The Factory oil cooler helps both cool and heat the oil. With the winter front on and 40 - 60 degree air temps, I can get the oil push the oil temps upto 190 by keeping the coolant upto 190. Pull the interfront and oil temps drop to 175 real fast.



IMHO... I think 180 - 190 degree coolant temps and 190 degree oil temps is the sweet spot for best engine efficincy. I get my best MPG if I can keep the temps in the area.



jjw

ND

 

[RGRAT1618]

An Oil cooler is a very good idea. Right now I am working on mounting and hooking up an oil accumulator to feed some oil into the turbo after the engine is shut down. I will let everyone know how it works out.



rob