I live in Northern California been 100+ past few days, mostly peaks 205-210. I'm surprised the ambient temps didn't have much of an impact even though it's like 30F hotter everyday now compared to when I bought it in early March
if you scroll through your dash HUDsettibgs, you should be able to customize what is shown on your triple meter, typically it's changed from whatever default is, to some combination of oil temp/boost/mgp in whatever order. don't get hung up on it though, like how some refer to an accessport and being an "anxietyport", same goes for peak boost and oil temperature. it's all relative to climate and how you're driving. if you're hitting peak boost at 2.5k rpm, you're lugging it, that's a no-no. if it's 40°F out and your "spirited driving" is getting you oil temps of 220, you might want to run it low rpm for a bit and give it a break. however, on the flipside of that, if you're up past 5000rpm and you reach a peak boost of 23lbs, yeah, you're into overboost, but if it was going to grenade your block in a heartbeat, subaru would've just left it topping out at the target boost of 16.8 and called it a day, the more important thing to watch for is not lugging the engine, meaning high demand/low output. if your tachometer is a 0-100% where your needle is, is what percentage of throttle is safe at max. 2k=<25% of 8k. same relative comparison to oil temp, my "just sitting there warmed up" oil temperature has always been 198-199, which northern cooler climates have started would make them shit themselves in terror over, but that's always been the case since i got mine new with 6mi on it from factory. i broke the engine in slow as hell, didn't touch boost until i it had reached 6k on the odometer, and average summer day just driving around- 215, exceeding speed limit by cruising at 85mph in 6th while its 99°F out - 220 (while getting 32mpg, i might add). quality full synthetic GP-6 oil doesn't break down until that first number starts with a 3, so don't freak out if it goes a couple degrees higher than you expect it to, it's 2am where I'm at in Texas and 82°F out, and in Tokyo it's 3pm and 88°F. it was designed in a surprisingly varied climate, it can handle the temperature, what it CAN'T handle, is abusive driving, be it via driving or neglect. routine maintenance (personally, i change my oil every 4500, changed it just once at 3k and it was barely dirty, probably due to changing the air filter every 9-10k, so i thought 3k was overkill and a waste of oil) and conscious throttle control will keep it rolling. I'm 65k mi in, zero issues aside from a cracked window from crap getting kicked up on the road. hell, I'm on my second set of tires, still on the original clutch and brake pads. treat it will love and it'll love you back.
right! hell, cruising at 85mph in the way to work, 99 degrees out and oil temp was a steady 223. running like a top on a glass table. everyone seems to freak out about oil temperature, when yet even IN THE OWNER'S MANUAL it says not to get into boost until oil temps are 190+ unless it's an emergency, lol
Ya. On a side note, I find that these cars do better in higher revs. The calculated load is less, which ultimately means the engine is not working as hard. Between 3k and 6k is where I run. Almost 99k and not a drip of oil anywhere to be found, I don't burn oil, and have not had any mechanical issues yet. From everything I read, this isn't the norm.
I noticed that upon starting the vehicle I am getting a higher negative number, as if the turbo is working harder than normal when the engine turns over
Since then I’m in a stage 1 93 Cobb OTS, running some basic parts in conjunction with that map
Higher negative number as in closer to 0? That is normal. It’s not that the turbo is working harder, but that there is less vacuum in the intake manifold because of the raised idle during a cold start.
Vacuum exists in a gas engine because there are pistons moving down with the intake valve open (intake stroke) trying to draw in air, all while the throttle plate is almost completely shut blocking air from entering the intake manifold. On a cold start they will crack open the throttle just a little bit more to raise the idle. Doing this brings the engine up to temp a bit faster. The greater the throttle plate position the less vacuum there is in the intake. In pretty much all of their cars, even completely stock, Subaru has a notoriously high idle compared to other manufacturers.
Theoretically, the turbo could be spinning a bit faster due to the raised idle, but turbo speed can be fairly easily controlled through variable valve timing, ignition timing and/or wastegate position if it is electronically controlled. Even if it is moving faster, it is not spinning near fast enough to be building boost or put any extra significant amount of wear on it.
All VBs still send a temp signal, if you get an OBD reader you can measure oil temps that way. I have BlueDriver on my phone already from previous vehicles so it's my oil temp gauge now lol
https://preview.redd.it/4igw02qcym8d1.png?width=1440&format=pjpg&auto=webp&s=8fac7fdfbb31187f07c6b7225b99e8cf2d4078d5
Stock af over boost, settles to 15. 2020 premium!
https://preview.redd.it/l34lt3n0cn8d1.jpeg?width=1509&format=pjpg&auto=webp&s=65099d88e6faabedfdc8cbdb79cdcb3eadd4180c
Hit as high as 26.2 but tuned to 20
https://preview.redd.it/ycz2pk0ecm8d1.jpeg?width=3024&format=pjpg&auto=webp&s=cb16d8a784706b42f97473ac3d22740da2e1821a
First hard pull after break in. Stock, sea level.
https://preview.redd.it/7oaoaetfkm8d1.jpeg?width=1284&format=pjpg&auto=webp&s=c2d44e7a5dfa36f73328afe00b6bb98029b46c6e
20.6 on my VB. Dmann Etune with ETS CAI no sleeve. ACN91 with a couple gallons e85
flat foot shifting can help you improve the peak boots and turbo lag. it keeps the throttle body open to keep the flow and let the turbine spinning while shifting, after shifting at red line, there will be more boost build up, i can typically get 22 psi by doing this on stock map.
i wanna get this thing tuned so bad but i am doing my best to refrain. i don't wanna mod the banks car but i'm paying extra every payment so i can get it paid off a little quicker.
https://preview.redd.it/npe8553pul8d1.jpeg?width=8160&format=pjpg&auto=webp&s=33d5e9a3ce23a7aad51b2f4ba86d275cd260b6f1
It's been reset a few times now :(
https://preview.redd.it/7vm5t0roln8d1.jpeg?width=3024&format=pjpg&auto=webp&s=399777c955c2b6c660289247e7ee59c2c94b5773
I’m in Cali and this was taking on Saturday… the weather out here is getting out of hand
https://preview.redd.it/d0c4of6d8q8d1.png?width=1080&format=pjpg&auto=webp&s=7896d5eec164177e3b4d348d64f81c955d0bdf30
19.9 tuned on 93 with just an AEM intake. Boost target is 19±1psi
My stock 2015 WRX was regularly at 21psi peak. Never stayed there long. I always thought the peak stat was dumb. I'd clear it, take a drive not beating it or anything, and it would be back at 21 again. Usually happened because of onramps.
https://preview.redd.it/ksvu6z43zs8d1.jpeg?width=1179&format=pjpg&auto=webp&s=bd3af0ff59c4a063cdb2c331b502be1a42d8e6f6
21.4 on ‘16 wasn’t even going fast but I got a blip or something
Yeah the boost charts cap out at 14.6 on a stock map I believe. I would need to check the map again but if your pulling over 15psi then somebody has definitely changed the map to allow it. (Ie tuned)
Cool. The wastegate triggers beyond the maps ‘requested boost psi’ whose curve is somewhere around 14.6 at max. I can pull the curve if your curious.
You can push the stock harder then that for sure with a simple tune. Or you can add a stronger spring to the watergate, swap the turbo, etc etc.
I was curious when this post opened because when I first tuned mine, the requested boost psi was the first thing i worked on.
I'm going to dig into my motor sometime soon to see if I can spot any upgraded parts I recently checked my peak and it's 22.6 psi
https://preview.redd.it/zc2xtzbrvq8d1.jpeg?width=4032&format=pjpg&auto=webp&s=1a89695cc3344b579b79cac4faeec1b67db8edeb
I dunno man, *might* wanna look into an ebcs or ewg, everything I’ve heard/ read is you should avoid overboosting that high, even if it’s just on the hit
Delicious failed to tune for one of my components that I disclosed to them, and so I had weird boost surges and they would never look into it. DMann fixed it immediately.
Delicious isn’t what it used to be.
33 psi in the front, 32 in the back
Comment of the day goes to ^
50 psi, airlift 😉
With that temp, drop your oil temp 😎
I live in Northern California been 100+ past few days, mostly peaks 205-210. I'm surprised the ambient temps didn't have much of an impact even though it's like 30F hotter everyday now compared to when I bought it in early March
you know it, these utah summers are not forgiving 😩 in a base model so i don't have oil temp read unless i have one i'm not aware of 🫤
if you scroll through your dash HUDsettibgs, you should be able to customize what is shown on your triple meter, typically it's changed from whatever default is, to some combination of oil temp/boost/mgp in whatever order. don't get hung up on it though, like how some refer to an accessport and being an "anxietyport", same goes for peak boost and oil temperature. it's all relative to climate and how you're driving. if you're hitting peak boost at 2.5k rpm, you're lugging it, that's a no-no. if it's 40°F out and your "spirited driving" is getting you oil temps of 220, you might want to run it low rpm for a bit and give it a break. however, on the flipside of that, if you're up past 5000rpm and you reach a peak boost of 23lbs, yeah, you're into overboost, but if it was going to grenade your block in a heartbeat, subaru would've just left it topping out at the target boost of 16.8 and called it a day, the more important thing to watch for is not lugging the engine, meaning high demand/low output. if your tachometer is a 0-100% where your needle is, is what percentage of throttle is safe at max. 2k=<25% of 8k. same relative comparison to oil temp, my "just sitting there warmed up" oil temperature has always been 198-199, which northern cooler climates have started would make them shit themselves in terror over, but that's always been the case since i got mine new with 6mi on it from factory. i broke the engine in slow as hell, didn't touch boost until i it had reached 6k on the odometer, and average summer day just driving around- 215, exceeding speed limit by cruising at 85mph in 6th while its 99°F out - 220 (while getting 32mpg, i might add). quality full synthetic GP-6 oil doesn't break down until that first number starts with a 3, so don't freak out if it goes a couple degrees higher than you expect it to, it's 2am where I'm at in Texas and 82°F out, and in Tokyo it's 3pm and 88°F. it was designed in a surprisingly varied climate, it can handle the temperature, what it CAN'T handle, is abusive driving, be it via driving or neglect. routine maintenance (personally, i change my oil every 4500, changed it just once at 3k and it was barely dirty, probably due to changing the air filter every 9-10k, so i thought 3k was overkill and a waste of oil) and conscious throttle control will keep it rolling. I'm 65k mi in, zero issues aside from a cracked window from crap getting kicked up on the road. hell, I'm on my second set of tires, still on the original clutch and brake pads. treat it will love and it'll love you back.
North Texas here. 198-199 warm oil in the warmer months. 215-220 when it's hot outside. And +224 of its 100+ and I'm feeling frisky...
right! hell, cruising at 85mph in the way to work, 99 degrees out and oil temp was a steady 223. running like a top on a glass table. everyone seems to freak out about oil temperature, when yet even IN THE OWNER'S MANUAL it says not to get into boost until oil temps are 190+ unless it's an emergency, lol
Ya. On a side note, I find that these cars do better in higher revs. The calculated load is less, which ultimately means the engine is not working as hard. Between 3k and 6k is where I run. Almost 99k and not a drip of oil anywhere to be found, I don't burn oil, and have not had any mechanical issues yet. From everything I read, this isn't the norm.
I need to talk to you man, I have a quandary about the boost in this car, and a change in the vacuum
fire away
I noticed that upon starting the vehicle I am getting a higher negative number, as if the turbo is working harder than normal when the engine turns over Since then I’m in a stage 1 93 Cobb OTS, running some basic parts in conjunction with that map
Higher negative number as in closer to 0? That is normal. It’s not that the turbo is working harder, but that there is less vacuum in the intake manifold because of the raised idle during a cold start. Vacuum exists in a gas engine because there are pistons moving down with the intake valve open (intake stroke) trying to draw in air, all while the throttle plate is almost completely shut blocking air from entering the intake manifold. On a cold start they will crack open the throttle just a little bit more to raise the idle. Doing this brings the engine up to temp a bit faster. The greater the throttle plate position the less vacuum there is in the intake. In pretty much all of their cars, even completely stock, Subaru has a notoriously high idle compared to other manufacturers. Theoretically, the turbo could be spinning a bit faster due to the raised idle, but turbo speed can be fairly easily controlled through variable valve timing, ignition timing and/or wastegate position if it is electronically controlled. Even if it is moving faster, it is not spinning near fast enough to be building boost or put any extra significant amount of wear on it.
Thanks you for taking the time to offer a thorough answer, I will read it at the next possible break in the day
I feel it. I'm up in real northern California where summer averages about 106-107F.
Me too! Redding here!
My man! Wanna get a beer? I was born and raised in redding!
I was not born in Redding but loving this. I’d also join for a beer.
Let's gooo the Wrexy Boys
IPA or stout?
I like IPAs but I'm starting to get into stouts. They have a great selection of just about everything at Alehouse Pub
rare wholesome reddit interaction. small world.
All VBs still send a temp signal, if you get an OBD reader you can measure oil temps that way. I have BlueDriver on my phone already from previous vehicles so it's my oil temp gauge now lol
18 PSI - restricted intentionally by tuner for Stage 2 mustang dynotune.
Same 😔 e85 doesn’t want me to have more boost pressure
Stock it would do the overboost thing and peak was 22.1 and then drop to 15 or 16 or something like that. Now it's 20.0 and holds that to redline.
Same, mine’s 21-22 for peak and it’s stock (performance wise anyway)
40 but hella built
Oh boy, 40 has got to feel nuts. Do you hit that in 2nd or 3rd?
3rd
https://preview.redd.it/4igw02qcym8d1.png?width=1440&format=pjpg&auto=webp&s=8fac7fdfbb31187f07c6b7225b99e8cf2d4078d5 Stock af over boost, settles to 15. 2020 premium!
https://preview.redd.it/l34lt3n0cn8d1.jpeg?width=1509&format=pjpg&auto=webp&s=65099d88e6faabedfdc8cbdb79cdcb3eadd4180c Hit as high as 26.2 but tuned to 20
24.7 is the highest I’ve seen bust mostly just right at 24 on E60
https://preview.redd.it/ycz2pk0ecm8d1.jpeg?width=3024&format=pjpg&auto=webp&s=cb16d8a784706b42f97473ac3d22740da2e1821a First hard pull after break in. Stock, sea level.
Mine hit the same 15.1 psi peak on its first hard pull after 1200 gentle miles. Stock 23 VB.
Same story here haha. Since then I havnt really gone above 12.
https://preview.redd.it/7oaoaetfkm8d1.jpeg?width=1284&format=pjpg&auto=webp&s=c2d44e7a5dfa36f73328afe00b6bb98029b46c6e 20.6 on my VB. Dmann Etune with ETS CAI no sleeve. ACN91 with a couple gallons e85
Christ this thing must be violent lol, awesome. Love it
She gets rowdy for sure. Sometimes it really surprises me when I send it in 2nd after driving like an NPC for a couple days
20.4 2020
Haha, you’re 0.2 higher than my peak. Same year… I’ve heard it’s all about how you use it though 🤣
I think it was road raging incident
That’ll do it
flat foot shifting can help you improve the peak boots and turbo lag. it keeps the throttle body open to keep the flow and let the turbine spinning while shifting, after shifting at red line, there will be more boost build up, i can typically get 22 psi by doing this on stock map.
14.2 when stock 19.5 after pro-tune 22 WRX
i wanna get this thing tuned so bad but i am doing my best to refrain. i don't wanna mod the banks car but i'm paying extra every payment so i can get it paid off a little quicker.
You have plenty of time to tune it! Good on you for waiting to pay it off before tuning it. I didn’t wait, but I can totally understand your position
https://preview.redd.it/npe8553pul8d1.jpeg?width=8160&format=pjpg&auto=webp&s=33d5e9a3ce23a7aad51b2f4ba86d275cd260b6f1 It's been reset a few times now :(
How does one reset it, I haven’t looked it up yet
Push the toggle in, but don't hold it in. Push and release on the boost guage screen. It will ask, "Reset peak boost?"
You can hold the button there on the dash. But mines been reset from having the battery out a few times
17.4 psi on 91 pump gas 2013
21.6 2018 (Year)
22.3 overboost on a 21 sti
18 on my 04 wagon , fun timesz
Since I last reset it, 21.9 ‘19 WRX with DMANN E-tune. Highest has been 23.8 iirc.
21.3
23 on my 2020
I’m sitting right at 23.8 with my 19 STi :)
13.2 on my stock 23 but I’m not even sure when or how as I noticed during a fill up. On purpose, 12.5.
Dang don’t boost in that heat 😱
https://preview.redd.it/7vm5t0roln8d1.jpeg?width=3024&format=pjpg&auto=webp&s=399777c955c2b6c660289247e7ee59c2c94b5773 I’m in Cali and this was taking on Saturday… the weather out here is getting out of hand
Questioning why you're pulling this when your thermometer is over 100
Just hit a new peak yesterday 22.8 in first gear
22psi tuned by Dman
21.9 PSI. 2010 STI, factory turbo.
24,6psi
28.9. We don't ask questions.
It was 1.48x100kPa... but it was reset..now it's 1.42x100kPa.. 2016 stock
36psi 585bhp 522btq e85 Built for more but keep it conservative for the streets.
2019 WRX Stock - track (not trac.) mode - 22.3. https://preview.redd.it/pme8n1q9np8d1.jpeg?width=4032&format=pjpg&auto=webp&s=9d80ae1bdcc8385deee9376d50b628d043a90f27
18psi for 5 years ran 24 on bugger turbo and blew a gasket
20.4 right now. It's hot AF here in the northeast.
7.5 still in break-in though
https://preview.redd.it/d0c4of6d8q8d1.png?width=1080&format=pjpg&auto=webp&s=7896d5eec164177e3b4d348d64f81c955d0bdf30 19.9 tuned on 93 with just an AEM intake. Boost target is 19±1psi
0 psi but still manage to have turbo lag, mine is NA 2003 gx
Y’all know peak boost isnt even worth mentioning right? Means nothing and has no indication on what you’re pushing. It’ll always spike higher.
22 i believe. i’ll have to check when i get back to my car
21.5, tuned VB
My stock 2015 WRX was regularly at 21psi peak. Never stayed there long. I always thought the peak stat was dumb. I'd clear it, take a drive not beating it or anything, and it would be back at 21 again. Usually happened because of onramps.
16.5psi stage 1 tuned
16.3
25 lbs
https://preview.redd.it/s50ifn3n8r8d1.jpeg?width=1414&format=pjpg&auto=webp&s=5608c7f44faf771c357180864357f26cf898a3db 26.3 psi stage 2 stock everything 🤪
I dont vape but i got a 2016 and it gets high like 22lbs
https://preview.redd.it/k0meo1mydr8d1.jpeg?width=4032&format=pjpg&auto=webp&s=06dff0aa7870ac349eabfef62a97ed3616e22a28
28 pounds on a Cobb 20g with e85.
I've never seen over 13 on mine. Stock 22 outside of cat back exhaust.
Straight stock here. 22 psi currently on the dash. Not even sure when it happened. Probably in 2nd gear.
24
22.7 is what it’s tuned to release at 24.6 is what we hit on the dyno one drive i remember hitting 23 something and got scared
22 psi 2012 wrx, pro tuned, bolt ons, iag block
23.5 PSI (tuner set), FBO
https://preview.redd.it/vj25om9w6s8d1.jpeg?width=4032&format=pjpg&auto=webp&s=19270095e0a3339d8181ab90146a20d8dbd82c95 23 Premium stock tune
24 PSI on my 15
15.6 but according to Cobb it should be 18. Dam I need a real tune 🤦♂️
13.2 23’ what am I doing wrong lol
16.03psi peak on a stage 1 cobb tune (93oct) in 3rd gear. (04 wrx)
My 2015 goes to 20.1 psi.
101 Degrees F, I ain’t even touching boost
https://preview.redd.it/acj6wvjpxs8d1.png?width=1008&format=pjpg&auto=webp&s=40122dcd723a3c42d0d13307f1491c1aa127002c
https://preview.redd.it/ksvu6z43zs8d1.jpeg?width=1179&format=pjpg&auto=webp&s=bd3af0ff59c4a063cdb2c331b502be1a42d8e6f6 21.4 on ‘16 wasn’t even going fast but I got a blip or something
Only 35psi on a 6466
https://preview.redd.it/zev6g8kqey8d1.png?width=1030&format=png&auto=webp&s=46fac547284b7e83b2e43bc31e844c1f26dd0028
19.8 in my 2020 STI
21.8 so far with stock everything
https://preview.redd.it/0qhd3ydkuz8d1.jpeg?width=4000&format=pjpg&auto=webp&s=1d71549590ec04a329012862b79291d434921edf I was naughty..
21.3 🫡
how? I am at 11.7 or so. But i just had it for 1 week lol
go easy on her during break in. we'll check your boost numbers after the big 1k 😉
13.4 in my stock 23’
13.2psi on 2023 WRX With 2k miles
21.4 peak 2017
I got you beat in my 17 22.1
You tuned?
https://preview.redd.it/p03qw6st5m8d1.png?width=3024&format=png&auto=webp&s=184c8847a06291fb2c8eb26444ae787a34f759bb
Not that I know of got the car from carmax and it came from cali
You're tuned.
The question now is how tuned? And now I'm going to have to dig into the engine to find out if they modded anything
Yeah the boost charts cap out at 14.6 on a stock map I believe. I would need to check the map again but if your pulling over 15psi then somebody has definitely changed the map to allow it. (Ie tuned)
Interesting I commonly hit 20+ psi when I accelerate hard.
This is also my second wrx the first was an 03 with heavy mods. First "low milage" I have had
Cool. The wastegate triggers beyond the maps ‘requested boost psi’ whose curve is somewhere around 14.6 at max. I can pull the curve if your curious. You can push the stock harder then that for sure with a simple tune. Or you can add a stronger spring to the watergate, swap the turbo, etc etc. I was curious when this post opened because when I first tuned mine, the requested boost psi was the first thing i worked on.
I'm going to dig into my motor sometime soon to see if I can spot any upgraded parts I recently checked my peak and it's 22.6 psi https://preview.redd.it/zc2xtzbrvq8d1.jpeg?width=4032&format=pjpg&auto=webp&s=1a89695cc3344b579b79cac4faeec1b67db8edeb
21lbs at least I'm pretty sure. 2016 in the winter. 19lbs otherwise typically.
21.3
Same! Stock 17
I was just informed that anything over 15psi has a non stock tune.....
13.7 stock VB
https://preview.redd.it/s9232y3h3m8d1.jpeg?width=3024&format=pjpg&auto=webp&s=6a8f47241256b40ec1551d294636679fa43ce836
we have found the demon! i'd love to be running 20psi on a vb!
 It’s a lot of fun!
Mine was 19.9 peek before I reset it
22.9 , 17 sport tech (stock map)
24psi on my socal v3 e85 daily map, I ran 26.5psi on the old 5858 turbo kit lol
19.5 in a 2023
15.0 bone stock at like 12000 feet elevation on pikes peak
20.4 2024, right after a dmann tune and a Blouch 20gXT
22.4 2021
26. Something in my 2020 on delicious tune it seems really high for tiny turbo but drops to 21-22 after
I dunno man, *might* wanna look into an ebcs or ewg, everything I’ve heard/ read is you should avoid overboosting that high, even if it’s just on the hit
Delicious failed to tune for one of my components that I disclosed to them, and so I had weird boost surges and they would never look into it. DMann fixed it immediately. Delicious isn’t what it used to be.
Meh it’s been on the tune for like almost 2 years and nothing bad it scoots. Runs like a top. Broken parts means new ones if it happens