[335why]

Just wondering with the jb4 if the increased power is going to jump up the oil temps some more?? The highest it's gotten so far is around 245-250..I'm currently stock however....

Just want some real world experience with other non oil cooled tuned cars..

[blbrchnk]

I have a JB4 and no oil cooler and I have been fine. The problem is not the added power as much as the repeated use of it. If you aren't out pushing it hard for a long time it should be fine. I just get on it every once in a while and have had no issues. That said, I might be investing in the retrofit kit and an upgrade down the line anyway.

[fisherbln]

It should be fine for day to day driving. If you live in the South or want to take the car to the track, you should probably get an oil cooler retrofit. Watch you oil temps and you'll be able to tell if you need it or not.

[Mike@N54Tuning.com]

No worries on not having an oil cooler. An oil cooler becomes a necessity when you track the car or are really pushing thing on the street in terms of full bolt ons, etc.

Stock or minimally modded plus JB4 and no oil cooler is perfectly fine unless you live in 45+ degree Celsius weather.

Mike

[rhodesman]

Originally Posted by Mike@N54Tuning.com

Stock or minimally modded plus JB4 and no oil cooler is perfectly fine unless you live in 45+ degree Celsius weather.

Mike

Not to say your wrong Mike but I would disagree. I had the oil cooler retrofit done before the JB4 and in 100% stock, I would get dangerously close to 300 after just 10 minutes of driving even when the temps were <45F!! (Driving on the street) Yes, you can get the JB4 w/o and oil cooler but honestly 5-8 minutes of pushing hard and then having to let up to cool the car down is not my idea of fun.

Maybe I push the car to hard but with the oil cooler, she doesn't go much past 250-260 which I still think is too hot but is not overly hot. I'm considering having BMW put the performance package on the car to get that second oil cooler plus larger radiator fan.

Just my $0.02, take it for what it's worth.

[Mike@N54Tuning.com]

Originally Posted by rhodesman

Not to say your wrong Mike but I would disagree. I had the oil cooler retrofit done before the JB4 and in 100% stock, I would get dangerously close to 300 after just 10 minutes of driving even when the temps were <45F!! (Driving on the street) Yes, you can get the JB4 w/o and oil cooler but honestly 5-8 minutes of pushing hard and then having to let up to cool the car down is not my idea of fun.

Maybe I push the car to hard but with the oil cooler, she doesn't go much past 250-260 which I still think is too hot but is not overly hot. I'm considering having BMW put the performance package on the car to get that second oil cooler plus larger radiator fan.

Just my $0.02, take it for what it's worth.

Thanks for the input.. I did say

An oil cooler becomes a necessity when you track the car or are really pushing thing on the street...

so that would agree with your statement. Most people don't push their car for a sustained 5-10minutes on the street. I am not sure how you would even do that and not wind up in jail LOL

I am speaking from experience, and I have many customers with no oil cooler who are tuned and have no issues. Its only when you FULLY mod, track or drive HARD in a sustained manner does it become a potential limitation.

Mike

[kanecvl]

Try it and see would be the only way to know. If its too hot take off the tune or install an oil cooler.

[rhodesman]

Originally Posted by Mike@N54Tuning.com

I am not sure how you would even do that and not wind up in jail LOL

You need to live out in the sticks where I do, country roads have their place.

I am speaking from experience, and I have many customers with no oil cooler who are tuned and have no issues. Its only when you FULLY mod, track or drive HARD in a sustained manner does it become a potential limitation.

Mike

I mean no disrespect, I know you got the experience to back up your claims. Hell you helped me fix my JB4 issue despite it not wanting to cooperate.

I guess I'm that guy that likes "piece of mind" and for me, all the cooling I can get gives me that and wanted to make sure the OP knew that. I still would say more cooling is needed regardless of the mods added, but again thats me.

To the OP: As Mike pointed it, it just depends how you use your car.

Jason

[Tzu]

Originally Posted by rhodesman

I would get dangerously close to 300 after just 10 minutes of driving

I was under the impression that the car would go into limp around 285F

[MKE_M3]

I would put additional cooling very high on your list, definately if you drive hard or track your car. I have the factory oil cooler and had temp related limp modes on the track running about 15 or 16psi on race gas. I now have a secondary oil cooler and an upgraded intercooler. I havn't tracked the car since the upgrades, but I am hopeful.

As Mike said, if you only get on it from time to time, like passing or on onramps, you should be OK.

[Beemw335]

Without the oil cooler your car will blow up!

Lol just playing, its not a problem at all, just dont track it or drive fast for extended periods of time. Even with the jb4, I dont think it will overheat any faster than stock...maybe just a bit.
Btw oil coolers are cheap, you can get one for a couple hundred bucks and diy the install.

[Digital.James]

I went 20k miles tuned with no oil cooler. Not once did my car run hot

[BobS]

You should be fine, my car was fine with a procede and then a GIAC stg 1 all summer during 90 degree days. Of course I didn't run it real hard all the time but it was fine.

I am getting a AR oil cooler installed in 2 weeks since i'm now more modded.

[M3 Eater]

I have been running the hell out of my non sport. I do have fmic upgrade but I was fine with frequent oil changes. Just keep your eye on the oil temp. If you see it move upward during spirited driving then I would be concerned. Mine never has so in my set up, an oil cooler is just added weight. I have never been to the track, drag or circuit, but I drive like I am there all the time. When i bought my car, I didn't know the difference. I was concerned for a while about it but the concern doesn't seem to be merrited.

[M3 Eater]

DIY install has you buying an oil cooler and the conversion kit. I have yet to see a cost effective way to do this.... or I would.

[RoundelM3]

Here in Central TX, you HAVE to have an OC...I'm even considering getting an aftermarket one. Sometimes our BMWCCA chapter takes group drives and we occasionally get into an area where we encounter traffic and it's slow going...the oil temp on my car sometimes rises 20 degrees in those situations with very little air passing through the cooler. So it's not always when you're "getting on it", but when the air temp is 105 F, the road surface is hotter still, and you're running the A/C in slow traffic it doesn't matter if you have a tune or not. I'd rather have the extra capacity.

[335i 07]

Originally Posted by Mike@N54Tuning.com

Thanks for the input.. I did say



so that would agree with your statement. Most people don't push their car for a sustained 5-10minutes on the street. I am not sure how you would even do that and not wind up in jail LOL

I am speaking from experience, and I have many customers with no oil cooler who are tuned and have no issues. Its only when you FULLY mod, track or drive HARD in a sustained manner does it become a potential limitation.

Mike

Would running a higher concentration of water in the radiator help mitigate this problem. What about water and water wetter only? Or would that make our water pumps hate life?

[M3 Eater]

yes water helps and won't harm your water pump. The boost coolers out there work well too but pick one and stick with it. I have been driving like an idiot, 15psi with meth for the last week. Average temp has been 90 degrees with 50+ humidity here in Raleigh NC. 10 minutes is a long time to drive at above stock boost. If I stay in 4th gear or higher, I can go for ever with no oil cooler even at high boost. If I am dropping into 3rd then I see the needle move toward 280 mark. Tune will limp at 285, you can continue to run at stock boost until you get to 300. 6-8 psi is fast in 4th gear and pulls like a freight train. If your not making to the track to run laps, you should be fine!