Z4 vs M3

[Vintage]

What does the Quaife LSD run in US $$$?

[persian54]

Originally Posted by VintageBMW

What does the Quaife LSD run in US $$$?

it was about 2k for my 335i with core exchange IIRC

[Vintage]

and then install . . . more $$$; maybe at Christmas

[persian54]

These were my temps at the track (actually it was little hotter on cause I took this while I was cruising on the road [off track] to cool down the car)

[bmwmick]

Originally Posted by persian54

These were my temps at the track (actually it was little hotter on cause I took this while I was cruising on the road [off track] to cool down the car)

WOW! Maybe we need to to find a way to spray our oil coolers.

[Vintage]

does our Stett FMIC help the heat issue?

[persian54]

a FMIC will help prevent/reduce heatstroke, but it won't really help bring oil temps down

You'll need an upgraded oil cooler, from say ER or AR, in order to bring oil temps down

[tranquility]

Originally Posted by persian54

These were my temps at the track (actually it was little hotter on cause I took this while I was cruising on the road [off track] to cool down the car)

...

Holy moly...what could happen if the temp reaches max?

[persian54]

Originally Posted by tranquility

Holy moly...what could happen if the temp reaches max?

it shouldn't

This is why the engine would cut my power, so that I couldn't push it

if you have a coolant leak it can go up and you can overheat/blow the engine

This almost happened to my old 986...

[Wraith.]

Holy crap it's 102F outside!

[bmwmick]

Originally Posted by Wraith.

Holy crap it's 102F outside!

Must be that GoreBal warming crap.

[Wraith.]

Anyway..... I have to think that racing in 102 temps didn't help much. But it does leave me wondering if the additional cooling of the iS would hold up. Same as 1M, no?

[persian54]

Originally Posted by Wraith.

Anyway..... I have to think that racing in 102 temps didn't help much. But it does leave me wondering if the additional cooling of the iS would hold up. Same as 1M, no?

I don't think the track reviews of the 1M have been in 100+ degree heat lol

my M3 never had heat issues and I've tracked it in 100+ degree heat
I mean, my times are slower sure, but the car still performs great (driver maybe not so much haha)

it actually hit 105 that day. crazy

Going back to the track Aug 13th and Aug 20th with the M :P

[flpnout]

Does your 09 Z4 even have an oil cooler? I heard some did not. When I went to Dinan for my S2, they were surprise to find an oil cooler on mine. I heard some 09 did not have oil coolers that had DCT, only 6speed manuals. Not sure if that is true or not? I pushed mine pretty hard and the highest temp on mine was 250. I'm sure the high weather temp did not help.

[persian54]

Originally Posted by flpnout

I pushed mine pretty hard and the highest temp on mine was 250. I'm sure the high weather temp did not help.

It should as it has sport package. I can see a Z4 with DCT and no sport package. I remember with the e90 335, if you had sport package you had an oil cooler (except some in 2007, and since the z4 was built in 2009 I'm assuming it would have it).

I'll check in the morning nonetheless


What you mean "pretty hard"?

I'm at around 250 daily driving

No matter how hard you push on the street, it will never get as hot as it does on the track
On the track, you're pushing it non-stop, where on the street it's rare to be going non-stop (you run out of room...)

[flpnout]

Originally Posted by persian54

It should

I'll check in the morning


What you mean "pretty hard"?

I'm at around 250 daily driving

No matter how hard you push on the street, it will never get as hot as it does on the track
On the track, you're pushing it non-stop, where on the street it's rare to be going non-stop (you run out of room...)

Look on your left side of your bumper where the silver trim piece is and you should see it set back there.

We do spirited driving quite bit in the mountains at least 6 hours on a given saturday with heat up to 85 degrees. normal driving my temp usually stays below 250. I know it's not the same as a track, but I'll do further testing when I have the opportunity for a track event. Looking forward to it!

[persian54]

Originally Posted by flpnout

Look on your left side of your bumper where the silver trim piece is and you should see it set back there.

We do spirited driving quite bit in the mountains at least 6 hours on a given saturday with heat up to 85 degrees. normal driving my temp usually stays below 250. I know it's not the same as a track, but I'll do further testing when I have the opportunity for a track event. Looking forward to it!

Sounds good

85 degrees is great lol
at least when compared to the deadly 105
today it was 116!!!!! (not at the track, but still!)

left side? ok.
i remember it was on the passenger side behind the front bumper on my 335i

[tranquility]

Originally Posted by persian54

left side? ok.
i remember it was on the passenger side behind the front bumper on my 335i

Ya, I think flpnout meant the right side...I rem looking for that grill-thingy a while back in the right-front wheel-well (2011s 'should' have the oil cooler).

[cdeslandes]

If I had a track open to the public convenient to my house, I would consider buying a used, stripped M3 as a weekend track car.
Would love to track the Z4 once or twice to explore its limits but would not expect it to be a great track car. It's more of a GT.

[cdeslandes]

Originally Posted by tranquility

Ya, I think flpnout meant the right side...I rem looking for that grill-thingy a while back in the right-front wheel-well (2011s 'should' have the oil cooler).

My 2010 has an oil cooler, it's on the right side.

[persian54]

Originally Posted by cdeslandes

It's more of a GT.

the M3 is also a GT more than a sports car :P

[tranquility]

Originally Posted by persian54

the M3 is also a GT more than a sports car :P

Agreed. It's too heavy to be considered a real sportscar in my books, even though it has lots of pwr.