[L~R~G nor cal]

Im not sure if this is old news, but I was at Dinan two weeks ago, and they believe they have fixed the overheating problem alot of u guys get.
They are almost done testing the new oil cooler they designed and look for it out in a month or two.
If this was already posted im sorry guys.

[sflgator]

Funny b/c so does BMW...with a retrofitted oil cooler for Sport Package 335's that didn't have an oem oil cooler (~ pre-March, '07 production) and have overheating issues...at n/c if you complain to BMWNA. All Sport Package 335i's now have an oem additional oil cooler. So, why would anyone purchase an oil cooler from Dinan?

If anything, why not just get an FMIC?

[rambino]

Maybe the new one from dinan will be Bigger and Stronger! annnnd still Suck like there dual exaust with a fake side.. haha

[sdiver68]

Originally Posted by sflgator

Funny b/c so does BMW...with a retrofitted oil cooler for Sport Package 335's that didn't have an oem oil cooler (~ pre-March, '07 production) and have overheating issues...at n/c if you complain to BMWNA. All Sport Package 335i's now have an oem additional oil cooler. So, why would anyone purchase an oil cooler from Dinan?

If anything, why not just get an FMIC?

Because the one from BMW does not solve the problem during 85+ degree track days.

[sflgator]

Originally Posted by sdiver68

Because the one from BMW does not solve the problem during 85+ degree track days.

I think that depends on the car. There have been plenty of ppl who have tracked their 335i's and not had overheating problems, especially when they have oem or retrofitted BMW oil coolers.

[judec]

Originally Posted by sflgator

Funny b/c so does BMW...with a retrofitted oil cooler for Sport Package 335's that didn't have an oem oil cooler (~ pre-March, '07 production) and have overheating issues...at n/c if you complain to BMWNA. All Sport Package 335i's now have an oem additional oil cooler. So, why would anyone purchase an oil cooler from Dinan?

If anything, why not just get an FMIC?

BMW TRIED to address the problem and more or less solved it - for a daily driver. Their solution prooved to be insufficiet for track use with high ambient temps. Maybe Dinan designed a more efficient better performing cooler able to solve the issue. So that's why would anyone purchase a repacement high perf oil cooler from Dinan or s/o else. I'm waiting for some other aftermarket vendors to chime in, I remember Helix to mention something. But time enough till late spring with higher ambient temps.

And why not just get an FMIC? Well, get it, it's definitely a good upgrade, but even if it helps a little, I dont think it is designed to solve the issue.

[leftcoastman]

I've never overheated on track, strictly speaking, but I've definitely hovered within 10 degrees of limping.

I'd rather not run 290 oil temps. I have the BMW oil cooler. If Dinan releases a better one, I'm first in line.

[Dascamel]

You may not get limp mode on the track but if the car is pushed on a warm day, 99% of them will get reduced power on high oil/coolant temps. Nohing is more depressing than passing a few cars then after a 3-4 laps having them pass by with the needle sitting at 290 degrees.

[jon@themshop]

On the work bench you can see the silver stock oil cooler on the left side middle of the table. Next to it is the prototype Dinan Oil Cooler. (BLACK)

[Cliffj]

Jon - Any idea on the target price range for the Dinan oil cooler?

Cliffj

[jon@themshop]

Originally Posted by Cliffj

Jon - Any idea on the target price range for the Dinan oil cooler?

Cliffj

Sorry but I don't know the pricing at this time.

[F32Fleet]

Good job Dinan ! I expect an upgarded OC will be the #1 mod for this car.

[leftcoastman]

Originally Posted by Dascamel

You may not get limp mode on the track but if the car is pushed on a warm day, 99% of them will get reduced power on high oil/coolant temps. Nohing is more depressing than passing a few cars then after a 3-4 laps having them pass by with the needle sitting at 290 degrees.

Yes, with a steptronic, you are virtually guaranteed to limp due to coolant and/or oil temps - even with oil cooler.

I've run nearly a dozen events this year, with ambients up to 100+, at a pace equivalent to instructors in 997s and I haven't yet limped due to heat. But it gets damn close. At 290 oil, I'm still at full power.

I've ridden in a steptronic that insta-limped, so I know how drastic the power reduction can be. :sad0147::sad0147:

[leftcoastman]

Oh crap. Where is that huge Dinan oil cooler going to go??

If it blocks the radiator, I'm not sure it'd help. You'd be robbing Peter to pay Paul.

[DrewKo]

Yeah, that thing is frigging huge by comparison to the stock oil cooler. I wonder how it is going to fit. Maybe they use longer or different tubing to relocate it?

[jon@themshop]

Originally Posted by DrewKo

Yeah, that thing is frigging huge by comparison to the stock oil cooler. I wonder how it is going to fit. Maybe they use longer or different tubing to relocate it?

Most likely Dinan will include a mounting hardware kit to accomodate the larger oil cooler.

[leftcoastman]

Originally Posted by jon@themshop

Most likely Dinan will include a mounting hardware kit to accomodate the larger oil cooler.

I don't think that's the point. Even with a hardware kit, I don't see where you can fit that sucker without blocking the radiator.

I'm going to investigate putting another BMW cooler in the driver's fender well. The key is going to be to make the 2nd cooler run parallel to the 1st, because I imagine a series configuration would result in undesirable pressure drop.

[sdwilly]

Originally Posted by leftcoastman

Yes, with a steptronic, you are virtually guaranteed to limp due to coolant and/or oil temps - even with oil cooler.

I've run nearly a dozen events this year, with ambients up to 100+, at a pace equivalent to instructors in 997s and I haven't yet limped due to heat. But it gets damn close. At 290 oil, I'm still at full power.

I've ridden in a steptronic that insta-limped, so I know how drastic the power reduction can be. :sad0147::sad0147:

Does anyone know how good a job the tranny coolers are doing on these cars? Seems like the Auto's have a much harder time with cooling than the manuals so makes me wonder about it.

[jon@themshop]

Originally Posted by leftcoastman

I don't think that's the point. Even with a hardware kit, I don't see where you can fit that sucker without blocking the radiator.

I'm going to investigate putting another BMW cooler in the driver's fender well. The key is going to be to make the 2nd cooler run parallel to the 1st, because I imagine a series configuration would result in undesirable pressure drop.

Well I meant to say that it might be in the same location where the factory oil cooler goes to. The stock mounting points won't work with the Dinan one so Dinan might add brackets for it to fit properly.

[greentea335i]

i might have to get that
my 335i doesnt have the sportpackage

[leftcoastman]

Originally Posted by sdwilly

Does anyone know how good a job the tranny coolers are doing on these cars? Seems like the Auto's have a much harder time with cooling than the manuals so makes me wonder about it.

Hmm good question. I don't have a step, so I can be contradicted by someone who has examined their radiator.

But on my other slushbox cars, the lower part of the engine coolant radiator is used to cool the ATF. Obviously as part of a separated chamber. This obviously reduced cooling capacity for the engine coolant.

[leftcoastman]

Originally Posted by jon@themshop

Well I meant to say that it might be in the same location where the factory oil cooler goes to. The stock mounting points won't work with the Dinan one so Dinan might add brackets for it to fit properly.

It'd be sweet if it did fit in the stock location, but that opening isn't that large. Invalidate my skepticism, Dinan engineers!