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      07-15-2014, 08:07 PM   #1
jts1981
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Some pics from MPACT

So I posted earlier about MPACT and needless to say there was 0 response on this forum. Anyways I just wanted to post some pics from the event. It's a shame that this forum isn't as active or supported by enthusiasts like the 3, 1, or M forums. Anyways hope you guys enjoy.
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      07-15-2014, 11:51 PM   #2
Hujan
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Car looks good, man. I saw your Z on a video of the event posted on M3Post. I, too, am always bummed by the lack of enthusiasts with E89 Z4s.

What is your wheel and tire setup? Looks very good.
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      07-16-2014, 07:03 AM   #3
jts1981
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Thanks man! Here is my set up:

Linea Corse LC8181
f: 19x8.5 et 30
r: 19x10 et 37

Tires Continental Extreme Contact DWS
f: 245/ 35/ 19
r: 275/ 30/ 19

Thanks for the heads up about the video. I'll have to check it out.

and yea, what a shame of lack of enthusiasts. Total bummer. These cars have so much potential. I raced my buddies 1 series w/fbo Cobb stage 2. From a 40mph rolling start I had him. I also had a full tank of gas weighing me down where as he had a half tank with race gas. At 60mph he beat me by a 2 car lengths at the top of the track.

Same thing when I ran a 460hp@ wheels turbo end m3. On the edge 40mph rolling starts we were neck and neck thanks to the Z's enormous torque and dct. At 60 he only beat me by a car length at the most.

I think with downpipes and improved cooling the Z can be a strong contender. I did notice on my 4th and 5th consecutive runs the gaps grew wider. The first 2-3 runs where very close, not even a full car length.
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      07-16-2014, 10:00 AM   #4
Hujan
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Quote:
Originally Posted by jts1981 View Post
Thanks man! Here is my set up:

Linea Corse LC8181
f: 19x8.5 et 30
r: 19x10 et 37

Tires Continental Extreme Contact DWS
f: 245/ 35/ 19
r: 275/ 30/ 19

Thanks for the heads up about the video. I'll have to check it out.

and yea, what a shame of lack of enthusiasts. Total bummer. These cars have so much potential. I raced my buddies 1 series w/fbo Cobb stage 2. From a 40mph rolling start I had him. I also had a full tank of gas weighing me down where as he had a half tank with race gas. At 60mph he beat me by a 2 car lengths at the top of the track.

Same thing when I ran a 460hp@ wheels turbo end m3. On the edge 40mph rolling starts we were neck and neck thanks to the Z's enormous torque and dct. At 60 he only beat me by a car length at the most.

I think with downpipes and improved cooling the Z can be a strong contender. I did notice on my 4th and 5th consecutive runs the gaps grew wider. The first 2-3 runs where very close, not even a full car length.
Awesome, thanks! Any rubbing with that setup?

I agree wholeheartedly about the Z. I'm in the process of modding mine right now. So far I have an Evolution Racewerks intercooler and charge pipe, Tial BOV, and a filter and oil thermostat replacement from BMS. I also have a Cobb AP. Next up are some AR downpipes (probably catted) and then a Cobb pro tune. Someday I also hope to add KW v3s and an LSD.
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      07-16-2014, 11:20 AM   #5
nicknaz
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Quote:
Originally Posted by Hujan View Post
I, too, am always bummed by the lack of enthusiasts with E89 Z4s.
+1

I have not seen another E89 on the track yet.
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      07-16-2014, 11:25 AM   #6
jts1981
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What do you think about the oil thermostat? Does it help?

I have a Wagner fmic which I like for now, but I'm also considering a 7 inch upgrade for the future, along with catted dp.

Rubbing wise. I would say no for daily driving in local roads, only small rub on high speed highway dips or large incline drive ways.

My tires don't show any signs of damage so I'm OK with the rare occasions I mentioned above.
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      07-16-2014, 12:56 PM   #7
Hujan
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Quote:
Originally Posted by nicknaz View Post
+1

I have not seen another E89 on the track yet.
Me either. Only E86 Z4Ms. Plenty of those.

Quote:
Originally Posted by jts1981 View Post
What do you think about the oil thermostat? Does it help?

I have a Wagner fmic which I like for now, but I'm also considering a 7 inch upgrade for the future, along with catted dp.

Rubbing wise. I would say no for daily driving in local roads, only small rub on high speed highway dips or large incline drive ways.

My tires don't show any signs of damage so I'm OK with the rare occasions I mentioned above.
The oil thermo works very well, almost too well. Whereas before my oil temps would settle at 245-250, just cruising around town or on the freeway, the oil temps now settle at about 210 degrees (same as my M3). I have never taken the car to the track and probably won't, but I imagine it would be a huge help at the track as well.

It's my understanding that BMW keeps the oil temps so high to reduce emissions but I can't imagine it's good for the oil's longevity to be constantly at 250 degrees F. I feel better with the oil temps being down to around 210 degrees. I imagine it helps keep the rest of the fluids cooler as well.
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      07-16-2014, 05:17 PM   #8
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Quote:
Originally Posted by jts1981 View Post
I think with downpipes and improved cooling the Z can be a strong contender. I did notice on my 4th and 5th consecutive runs the gaps grew wider. The first 2-3 runs where very close, not even a full car length.
Thanks for the info on your tire setup. I will look into those tire widths in the future. I am using 235 and 265 wide tires on the OEM wheels right now.

I agree with you completely on the cooling. When I was at buttonwillow in May I struggled in a huge way with limp mode with engine completely stock, as well as brake fade.

Hujan, one concern I would have with the temp thermostat is increased carbon buildup on the intake valves from the lower oil temps. There is a thread going on in the other subforum about this. My sense is that if the stock cooling can't keep the oil from going to 250F to 300F then a lower temp thermostat is just slightly delaying the inevitable, and aftermarket oil cooler etc are needed.
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      07-16-2014, 07:43 PM   #9
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I'm the only E89 I've ever seen at any NASANE events. I was at MPACT, but didn't really get a chance to look around since I was on the road course all day.

Here's a pic of my car from MPACT
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      07-16-2014, 07:53 PM   #10
Hujan
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Quote:
Originally Posted by nicknaz View Post
Thanks for the info on your tire setup. I will look into those tire widths in the future. I am using 235 and 265 wide tires on the OEM wheels right now.
I've often thought about a 275 rear myself. 235/35/19 and 273/30/19 are exactly the same diameter, whereas 265/30/19 is slightly smaller than 235/35/19. Having a smaller diameter rear tire seems odd to me, especially when the rear wheel on the M3 uses a bigger diameter tire.

The only reason I would hesitate is because the 40 mm disparity front to rear might exacerbate understeer (the M3 has a 20 mm disparity stock). And I'd be afraid of rubbing (though there is a little room yet even with the 265 PSS).

Quote:
Originally Posted by nicknaz View Post
Hujan, one concern I would have with the temp thermostat is increased carbon buildup on the intake valves from the lower oil temps. There is a thread going on in the other subforum about this. My sense is that if the stock cooling can't keep the oil from going to 250F to 300F then a lower temp thermostat is just slightly delaying the inevitable, and aftermarket oil cooler etc are needed.
Interesting about the carbon buildup. I'll have to check that thread out. I, too, wondered if it would only delay the inevitable, but my understanding is that even when the temps cross a certain threshold and the thermostat "opens," it still blocks a fraction of the flow. In other words, it goes from allowing 10% to flow through the oil cooler to, say, 80% when the temps reach the specified set point.

Speaking of carbon buildup, as the Z approaches 40k miles, I probably need to address what's undoubtedly been built up. Do you have any recommendations for a place to do a good walnut blast in San Diego?
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      07-16-2014, 10:10 PM   #11
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Quote:
Originally Posted by wmandra View Post
Here's a pic of my car from MPACT
Which course did you guys run? Poconos East on a ninja my very first track day ever!

Hujan, maybe you can change the rear toe. I brought it closer to zero and like it better than stock

As for the carbon buildup, some advice I'd gotten and also read online is that really heating engine up (>20 minutes at >4000rpm) regularly keeps build up from being a problem. I've been following that advice since I got the car, so I haven't thought about the walnut blasting.

Btw, what are you thinking for your next DE?
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      07-16-2014, 10:32 PM   #12
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Quote:
Originally Posted by Hujan View Post
I, too, am always bummed by the lack of enthusiasts with E89 Z4s.
+2

Lack of a true E89 M didn't help either.

Nice photos jts1981. You track with top down?
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      07-17-2014, 08:50 AM   #13
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      07-17-2014, 04:28 PM   #14
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Quote:
Originally Posted by Hujan View Post
Car looks good, man. I saw your Z on a video of the event posted on M3Post. I, too, am always bummed by the lack of enthusiasts with E89 Z4s.

What is your wheel and tire setup? Looks very good.
i see you're on here to hujan lol....

i was thinking of asking the mods to create a consolidated track section rather than a track section within each 123456789mzxpost.
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      07-17-2014, 11:43 PM   #15
Hujan
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Quote:
Originally Posted by SlowSaloonM3 View Post
i see you're on here to hujan lol....

i was thinking of asking the mods to create a consolidated track section rather than a track section within each 123456789mzxpost.
What up, dude! Yeah, I'm on both. I go back and forth working on the Z4 and M3. I love both!

A universal track forum across all platforms would be awesome!
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      07-19-2014, 11:26 AM   #16
jts1981
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Quote:
Originally Posted by wmandra View Post
I'm the only E89 I've ever seen at any NASANE events. I was at MPACT, but didn't really get a chance to look around since I was on the road course all day.

Here's a pic of my car from MPACT
Looks like I just missed you. At one point I parked in front of you while we were setting up the Ideas booth. I like what you did with your ride. #becauseracecar
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