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Old 01-15-2017, 11:22 PM   #26
phxsubaru
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Are you guys talking about DUNLOP DIREZZA ZII STAR SPEC ?
Yes, 200 treadware rating. Great tire on track
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Old 01-16-2017, 09:16 AM   #27
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nice thank you.
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Old 01-16-2017, 09:21 PM   #28
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So yesterday I installed the radiator. I burped the system incorrectly the first time and it ran hot, but the second time it would not over heat. Just checked the car today after letting it sit over night and the fluids are topped off. The highest temp I have seen around town so far was 196. It's usually 187-192. No overheating so far. It's been in the 30 to 40 degree temperature range where I live.
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Old 01-17-2017, 09:13 AM   #29
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Back to the pads, be aware that there is a great variance in how abusive the tracks themselves are on pads in the Northeast. Lime Rock is one of the easiest tracks on brakes in the country, Pocono is easy to medium depending on what configuration you use, Watkins Glen is medium in a street car, Summit Point main and Palmer are medium-hard, and Thompson and NHMS are very hard on brakes. For your first couple of days you should be fine with the pads that you have, but especially if you run Thompson or NHMS, you'll probably find that you'll want a full track pad pretty quickly.
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Old 01-21-2017, 12:00 PM   #30
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and when I changed the coolant I kind of made a mess. Anyone know how long before it stops stinking like coolant? I still get a hint here and there, pretty sure it's not leaking.
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Old 01-21-2017, 12:13 PM   #31
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a few weeks.. :| sorry. Try to hose it all off with water and dish soap - or it will be week. I hate coolant.
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Old 02-09-2018, 06:40 PM   #32
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How did your track day go and did you do anymore? I’m preparing my STI for a track day in a month!
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Old 02-11-2018, 06:01 AM   #33
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How did your track day go and did you do anymore? I’m preparing my STI for a track day in a month!

I went a while back but the overall experience was amazing. It was a very technical track (New York safety track) especially for my first time stepping foot on a track. Kind of felt good keeping a gt350 on my rear bumper on a 2 mile track for 2 to 3 Laps haha. My first pass was in the rain which was kind of awesome but scary at the same time. Once I learned the track it all started to feel natural and the car did exactly what I needed it to do and the money and time put into the suspension, etc etc paid off big time. Put a smile on my face for sure. Can’t wait to get back out there. Since then if done a full brake upgrade with ss lines, new rear control arms and that’s about it. Can’t wait for the new season.
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Old 03-13-2018, 01:16 PM   #34
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I went a while back but the overall experience was amazing. It was a very technical track (New York safety track) especially for my first time stepping foot on a track. Kind of felt good keeping a gt350 on my rear bumper on a 2 mile track for 2 to 3 Laps haha. My first pass was in the rain which was kind of awesome but scary at the same time. Once I learned the track it all started to feel natural and the car did exactly what I needed it to do and the money and time put into the suspension, etc etc paid off big time. Put a smile on my face for sure. Can’t wait to get back out there. Since then if done a full brake upgrade with ss lines, new rear control arms and that’s about it. Can’t wait for the new season.
Nice man! Glad you had such as good time. I'm about to go to an HPDE event in a couple of days. Friday at the Track (FATT) at Summit Point Raceway. I've had about ~20 track days in my old 350z, but haven't been on a track in over 4-5 years. I can not tell you how excited I am to get back on the track with my new STI.

For mods, I'm focusing mostly on reliability. Have a stage one tune, Cobb OTS, Killer B pan, pickup, and baffle kit, IAG AOS, Michilin Pilot Sport Cup 2 tires, Cobb Drivetrain kit (Shortshift and Bushings), SS brake lines, and Carbotech XP10 Brakes.

Wish me luck! I'll probably put up some videos online! Do you have any HPDE event schedule for this season yet? I see you are up in New York, but I'd suggest making a road trip to Virginia International Raceway (VIR). They have hotels on the track. It is amazing and highly recommend going. One of the best tracks in the country. I'm going to probably convenience my buddies to do one there mid-spring.
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Old 03-17-2018, 01:15 PM   #35
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What organizations do you guys run with? I’ll be at Palmer MSP for may 19-20.

Do you guys recommend adding engine oil a bit pass full level for our cars? Dry sump vs froth. Any tips?
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Old 03-17-2018, 02:24 PM   #36
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maybe a touch

def don't let it get low

maybe check it before each session and open the oil cap when checking

these things don't hold much oil to begin with


also , I fill my gas tank after every session to help prevent fuel starvation , which is very bad juju , and subies are known for such things

torque the wheels before the first session , do not retorque hot


most importantly , bleed the brakes before the trackday


have fun
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Old 03-23-2018, 11:16 AM   #37
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What motormike said.

I added a IAG AOS and the Killer B Oil Pan Kit (Baffle, Pan, and Pickup). I bleed my brakes, threw on Carbotech XP10 brakes, Michilin Sport Cup 2 Tires. Also, since I bought the car used, a 2016 STI with 22k on it. I did the 30k maintainance and replaced all the fluids, transmission, diff, oil, brake oil (Motul RBF600).

I was very happy with it. Thinking about other mods to add for reliability sake.

I was super rusty, but it feels good to be back at the track. The car felt great and loved the stability of the car. Just getting used to it all again. By the end of the day, I was getting closer to my old times but there is a lot of room for improvement. My Z was a track car that I had on the street (also a bit too tail happy). Now I have a street car that I can enjoy on the track. I prefer it this way.

I was running with Friday At The Track at Summit Point Raceway. I usually do HPDE there or VIR. I think my favorite club is Track Daze, FATT, SCCA. Have another track day in April. Can't wait .
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Old 03-23-2018, 04:05 PM   #38
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I would add to monitor oil pressure and temperature on these engines.
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Old 03-28-2018, 08:27 AM   #39
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Not car realeted, but can you guys recommend a track timer app for android? Thanks
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Old 03-28-2018, 09:40 AM   #40
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Not car realeted, but can you guys recommend a track timer app for android? Thanks
Harrys Lap Timer
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Old 03-29-2018, 12:06 AM   #41
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With Happys lap timer, make sure you get a good rigid phone mount. Look on their website for recommendation. otherwise you get crap.
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Old 03-29-2018, 12:07 AM   #42
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dont track your cars in S# for too long. they heat up !!! I saw guy kill his STI that way on the last event. (seen two already). Track in I, and switch S# here and there for a few moments.
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Old 03-29-2018, 07:59 PM   #43
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dont track your cars in S# for too long. they heat up !!! I saw guy kill his STI that way on the last event. (seen two already). Track in I, and switch S# here and there for a few moments.
I’m confused.. aren’t you degrading the car by running it in “I”, also as far as vdc on the gr. Are you guys running “full on” “green” or “orange”
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Old 03-29-2018, 08:03 PM   #44
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Quote:
Originally Posted by SHL979 View Post
What organizations do you guys run with? I’ll be at Palmer MSP for may 19-20.

Do you guys recommend adding engine oil a bit pass full level for our cars? Dry sump vs froth. Any tips?
I recommend Comscc, and after that, comscc. In fact, do the whole comscc season.

I run my bolt on 160k+ mile ej257 with around a half qt overfull when cold, and check it before going out every session
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Old 03-30-2018, 09:55 AM   #45
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I’m confused.. aren’t you degrading the car by running it in “I”, also as far as vdc on the gr. Are you guys running “full on” “green” or “orange”
not sure what VDC is.. but what do you mean by degrading the car by running in "I". Not at all, S# will give you more boost, but try running in S# it and see you will see the engine temp rise quickly after a few laps.

Yes the car is faster in S# than on I. But its plenty fast on I with the right tune.
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Old 04-03-2018, 09:42 PM   #46
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I’m confused.. aren’t you degrading the car by running it in “I”, also as far as vdc on the gr. Are you guys running “full on” “green” or “orange”


I have a gd sti si I don't have s or I or that green or yellow shyt either but I will say this

my track tune is about 80-100hp less than my hot dog street "beat em up tune" . I also run the dccd in "auto"

these things are done to help preserve my fragile pos Subaru shytbox that has a whole boatload of "issues" when they are roadcoursed

my car is fairly dialed and pretty much fully built but it is still handicapped by problems that some other cars are not

if you think you can beat on your car like a wrc factory built special or some nurburgring ringer you are sadly mistaken there kidz


if you really want to go faster around a track then figure out how to not slow down as much , most often lap times are better when the avg speed is higher not top speed
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Old 04-03-2018, 10:04 PM   #47
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I have a gd sti si I don't have s or I or that green or yellow shyt either but I will say this

my track tune is about 80-100hp less than my hot dog street "beat em up tune" . I also run the dccd in "auto"

these things are done to help preserve my fragile pos Subaru shytbox that has a whole boatload of "issues" when they are roadcoursed

my car is fairly dialed and pretty much fully built but it is still handicapped by problems that some other cars are not

if you think you can beat on your car like a wrc factory built special or some nurburgring ringer you are sadly mistaken there kidz


if you really want to go faster around a track then figure out how to not slow down as much , most often lap times are better when the avg speed is higher not top speed

^
I do no know this man above me, but I tell you one thing folk, he is not talking out of his ass - and he knows what is up. This is the voice is experience right there.

Consistency wins races, that is why I am really impressed by my friend's hot lap times, because I their averages are all over the place. Anyway, I wouldn't say the EJ are ****, but you need to prep them and you need COOL them !!!!.

So like state above, no, do not run High boost. Road course is not fast and furious.
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Old 04-10-2018, 07:57 AM   #48
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I can probably share some of my track experience here.

I had a 2002 wrx ECUTEK stage 3 (VF30) with supporting mods (stock internals, stock intercooler) that I tracked a dozen times in Seattle and Portland. Car ran perfect with stock radiator and no oil cooler, no overheating no nothing. I didn't have any gauges to monitor the temps because I didn't think it was needed. Obviously I wasn't a pro and perhaps I wasn't beating on it too bad. Anyway, overall great experience with the EJ20 motor.

Fast forward 10 years, I have a 2012 STi now and have done about 5 track events with it. First 3 times, I was on stock power level (with a Blitz oil cooler). The last 2 times (recently one being just 2 days ago) I was on Stage 2 ECUTEK tuned by a reputable tuner in the States (e-tuning only). I also added a Blitz radiator with some specially mixed Motul coolant that was supposed to be the sh**t. You can probably guess where this is going... BOTH times I had overheating issue. Previously my brand new Sard low temp thermostat was the messed up and there was bubble in the system caused by either improper bleeding or the thermostat which didn't open fully, thus decreasing the flow of coolant into the engine for cooling (not sure if this means sense). As a result, coolant was pouring out of the reservoir when I was pushing it out on the track. I lost like 4-5L of coolant, for real. How do I know, because that was how much I had to refill the system before the long drive home. Less coolant = overheating, simple.

Then in the recent event, I made sure everything was working. Coolant level was consistent even when the car was overheating after pushing it for 2-3 laps in S mode. In S# it would overheat a bit sooner. By that I mean the water temp reading on my Defi gauge almost hit 110C (which was when the stock needle would begin to creep up, scary stuff yeah...) The temp would drop back to normal after half a lap, ~95C.

My conclusion is that this seems to be an inherent issue for the EJ25 motor if you run higher boost. Anyone has similar experience? I mean my tune is supposed to be conservative since I drive on the street as well. By the way, my oil temp was nice at under 100C, which was kinda expected since I was only doing 2 hot laps each time before I had back off.

I'm not sure about running I-mode on the track though... What we do here is time attack and of course I need every ounce of juice to beat my own record.


Not hijacking the thread LOL..
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Old 04-10-2018, 10:51 AM   #49
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You can run I or S, but S# (high boost is to be used sparingly).

People talk crap about mishimoto, but I am running the X-line radiator and their oil cooler. They work, not overheating, my experience has been good.
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Old 04-13-2018, 04:51 PM   #50
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Mishimotos fitment , cores and radiator caps are crap in general.

If you run high boost on the car pushing the turbo out of its efficiency range you push more hot air so put more heat into everything.

Our engines run hot in general so any ducting or cooling mods are going to be beneficial
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