JB4 for 2022+ Subaru WRX

[MEATYkielbasa]

Hey Meaty! Those are some nice numbers. Please share your map 6 settings. I also run 93, with charcoal delete, and would like to properly set my car up. Thanks!

Current settings below. Let me know if you want any help, used to do a lot of boosted Honda tuning back in the day and this has gotten me all excited again.

edit: ignore that clicked bit 2, getting a little trigger happy with the mouse.

[dylanvbwrx]

cg04-wrxMEATYkielbasa
Not a bad looking Map 6, but one thing to remember is every state is going to be different. Different elevation, fueling etc, so I recommend if you're set on making a map 6 to start low boost and slowly add on, so you're not running extremely lean. Also, duty bias will only apply if you have the waste gate plug plugged in, if not just stick with 50 in the slot.

[MEATYkielbasa]

cg04-wrxMEATYkielbasa
Not a bad looking Map 6, but one thing to remember is every state is going to be different. Different elevation, fueling etc, so I recommend if you're set on making a map 6 to start low boost and slowly add on, so you're not running extremely lean. Also, duty bias will only apply if you have the waste gate plug plugged in, if not just stick with 50 in the slot.

Very true, definitely don't plug this in and hope for the best. I'm at sea level in Maine so IATs are super low right now, will be interesting to see if these numbers change as it starts to warm up.

[dylanvbwrx]

MEATYkielbasa It won't change much; I've been running my map 6 for 8-9 months now with minor changes.

[squarejournal]

Are these the default settings for Map 1? Focusing past Boost Safety.

[ethancf55]

I’m running map 3 e30 mix with the BMS intake. I have been having a hard time with my afr’s. I’m at 19 psi peak and i’d like to be at 21-22. I had changed duty bias which put me up there for sure but i’ve been running too lean at the top in between 5k-6k rpm range. It’s in the 12’s in mid range so that’s good but that top end was in the 14’s no matter how much i would lower my fuel bias. I changed the duty bias back down to 50 and it fixed it but obviously i’m back down 4psi peak. Id like to have my boost up and play around with duty bias but I just haven’t been able to do it without it running lean. Can someone help me out?

[Payam @ BMS]

I’m running map 3 e30 mix with the BMS intake. I have been having a hard time with my afr’s. I’m at 19 psi peak and i’d like to be at 21-22. I had changed duty bias which put me up there for sure but i’ve been running too lean at the top in between 5k-6k rpm range. It’s in the 12’s in mid range so that’s good but that top end was in the 14’s no matter how much i would lower my fuel bias. I changed the duty bias back down to 50 and it fixed it but obviously i’m back down 4psi peak. Id like to have my boost up and play around with duty bias but I just haven’t been able to do it without it running lean. Can someone help me out?

Post the log for any tuning advice.

[fleadiddy2240]

I live in Colorado would I be able to run map 3 here

[NightWRX]

Does the JB4 monitor oil temperature? If it's Oilf that's always 0 when it's on the app and all logs I have seen have it at 0.

Thanks

[lidksmy]

93 Octane
Map 2
Removed charcoal filter
Nameless CBE

[Flat4]

Updated since last post. Looking for feedback, 93 oct Connecticut, ETS Intake only other mod.

Also, as suggested before I downloaded the Alpha and had trouble starting the vehicle. I could not save/load map 6 custom settings I kept getting an error. Notably the boost safety kept reverting to like 24.5 every time. I switched back to the stable version and everything seems better but looking for any advice there too.

[BoboTwo]

Okay... I ordered the JB4 Beta for the +2022 WRX. I have a stock (did nothing to is so far) base CVT, and this is what it did 0 - 60mph so far. Car&Driver same rollout time of 5.40 for CVT =) Impressive! Any other +2202 CVT (SPT) owners in here with the JB4 running Map 4 w/E30? I heard all good things about the SPT so far from people who are over 300 WHP.

[Terry @ BMS]

With the CVT we've been advising customers to start slow and evaluate. Some guys are pushing map5 on E30 with it but we just have not done the required durability testing on our end to know whether or not its going to wear down the trans. But map1 and map2, we believe are fine.

[squarejournal]

I believe I'm running quite thin on AFRs. Can someone take a look at my CSV and advise?

Context:

Base CVT
91 Octane
Running Map 2
_______________

Cobb TMIC
ETS Axelback

[lidksmy]

I believe I'm running quite thin on AFRs. Can someone take a look at my CSV and advise?

Context:

Base CVT
91 Octane
Running Map 2
_______________

Cobb TMIC
ETS Axelback

1. What do you mean by 'running quite thin'? It goes rich (lower AFR) at times.
2. Why are you running Map 2 when you are only using 91 octane?

[squarejournal]

1. What do you mean by 'running quite thin'? It goes rich (lower AFR) at times.
2. Why are you running Map 2 when you are only using 91 octane?

Thanks for the response back, apologies on miss using some terms. my previous understanding was that AFR going below 14.5 is thin or not right. As for Map 2 vs Map 1. It was potentially recommended that I try Map 2 if in higher elevation areas. I'll look to revert back to Map 1. Any red flags in my CSV?

[lidksmy]

Thanks for the response back, apologies on miss using some terms. my previous understanding was that AFR going below 14.5 is thin or not right. As for Map 2 vs Map 1. It was potentially recommended that I try Map 2 if in higher elevation areas. I'll look to revert back to Map 1. Any red flags in my CSV?

AFR lower than 14.7 = Richer mixture
AFR higher than 14.7 = Leaner mixture



I've never heard it being called thin, just rich or lean.

Who recommended Map 2 for higher elevations, just curious.

Terry @ BMS indicated their Map 1 and Map 2 are pretty much dialed in.

[Cannon @ BMS]

AFR lower than 14.7 = Richer mixture
AFR higher than 14.7 = Leaner mixture



I've never heard it being called thin, just rich or lean.

Who recommended Map 2 for higher elevations, just curious.

Terry @ BMS indicated their Map 1 and Map 2 are pretty much dialed in.

While yes this image is correct for perfect idle/cruising conditions, this should not be relied on at all for WOT. On pump gas, I do not recommend running over low 12's at WOT. Even then, shoot for mid to high 11's.

[Terry @ BMS]

Updated since last post. Looking for feedback, 93 oct Connecticut, ETS Intake only other mod.

Also, as suggested before I downloaded the Alpha and had trouble starting the vehicle. I could not save/load map 6 custom settings I kept getting an error. Notably the boost safety kept reverting to like 24.5 every time. I switched back to the stable version and everything seems better but looking for any advice there too.

Log seems fine. Ideally I'd want to see 40-90, on a safe private track, so there is a shift in there to evaluate. With the update you may need to make new templates as the internal scaling changed.

[BoboTwo]

I think Subaru really gave us a sleeper. If you haven't seen my first post (dragy 0 - 60 100% stock CVT 2022 WRX)... I was able to hit 5.40 seconds (with rollout like C&D time). You have to floor the gas and hold for 2 or 3 seconds so the car doesn't 'fake-shift' and holds 5800 - 6000 rpm all the way to the quarter mile. If you just floor it and take off... it most likely will just 'fake-shift' and the time is like ~0.5 seconds slower so it's mandatory to get the car not to 'fake'shift'. Okay... a video on YouTube showed adding E85 to get an E30 mixture to a 2022 WRX without any mods or tune, and it added 30 HP. They noticed the car was pulling timing around the 5000 - 5800 rpm on the 91 octane... but smoothed it out with the E30 and added ~30 HP! I've experimented with other cars in the same manner and was willing to put it to the test. I found out that E25 seemed to work the best (without a tune or mods). The car ran smooth and def. pulled a bit more after the E25 mixture made its way through (drove around for like 20 minutes). I was able to hit 0 - 60 in 5.08 seconds! The CVT doesn't make mistakes (compared to manual shifting) and when you figure it out... it totally rocks! Now add the charcoal delete mod and a grim speed intake... I bet I can dip into the 4's. I don't think that'll affect the MAF scaling. 80 - 120kph time improved as well @ 3.20 sec (prev. 3.44). I did a couple pulls and this was the best one so far. It seemed the car was getting quicker after a couple pulls. Learning the E25 and the ECU making adjustments? Anyway, from my results I can concur that YES; adding E85 to make an E25 - 30 mixture alone, does increase HP! This is a very good thing in California

[dylanvbwrx]

squarejournal yes unless you're on alpha and then fuel bias will be 80

[dylanvbwrx]

BoboTwo Moving pretty quickly! I'm sure you could break into the 4's

[dylanvbwrx]

fleadiddy2240 It's best to try Map 2 do a log post it up here and then if all looks good do the same for map 3. I've seen a handful of maps on pump gas running map 3 up there, but best to always data log to make sure.

[BoboTwo]

BoboTwo Moving pretty quickly! I'm sure you could break into the 4's

Yep... ordered the filter . Amazing now how all these 2022 WRX's (after Subaru discounted them 1.5 - 3k depending on trim) are being sold. There's not many left in the lots
by me now. I think people are seeing the real potential of the FA24 now that tuners and hobbyists are posting all the results. This is my third WRX (one being an STi) and I really think the +2022 it's the best outta them all in general. Some people are still hung on the looks but I think it has to grow on you... like the FK8. I'll say it again though.. the CVT (SPT) has really been improved. Love the way it handles in the mountains. The car definitely looks better in person than in photos.

[YanisJ]

Hi,

May you guys take a look at this log?
This is running on 94 octane, charcoal delete and CBE.
Should I revert to map 2 or make adjustments to increase my AFR?

[cbk412]

Howdy! First post y'all I'm sure excited to get the most out of my JB4. How does my log look? Map 3, 93 Octane, with the ETS intake. Still waiting for the Perrin charger pipe and ETS intercooler. She seems smooth so far, no issues. Only thing I've noticed is she gets rich down in first gear coming up to a light before it leans out slowly to stoich after idling at a light. Thanks!

[lidksmy]

Y’all might jes wanna attach the file to your post, pardner, as everyone else has done.

(The link you posted doesn't take me to your file, it just takes me to Google Drive.)

[cbk412]

Y’all might jes wanna attach the file to your post, pardner, as everyone else has done.

(The link you posted doesn't take me to your file, it just takes me to Google Drive.)

I took a very long log. Too big for the BBS. I spent about 20 minutes shortening it manually but got frustrated when I got it small enough and I couldn't convert it from a numbers file to excel ( new to mac). I'll take some short rips tomorrow and log it. I drove to Nashville from East Texas today on MAP 2. Got 27.3 MPG in there with some good rips in. Felt smoother than Standard map 3 but its hard to tell without data. Sorry about that!

[lidksmy]

I took a very long log. Too big for the BBS. I spent about 20 minutes shortening it manually but got frustrated when I got it small enough and I couldn't convert it from a numbers file to excel ( new to mac). I'll take some short rips tomorrow and log it. I drove to Nashville from East Texas today on MAP 2. Got 27.3 MPG in there with some good rips in. Felt smoother than Standard map 3 but its hard to tell without data. Sorry about that!

They just need to see the rows at 100% throttle and save it as a .csv, which Numbers can do. File--Export To--CSV

[Flat4]

Hey everyone - I downloaded the beta-app version which is much nicer. I was able to load the current alpha firmware, but it will not let me save the max boost (fail safe) manually and keeps reverting back to 25 and change. I want to limit the boost to 20psi max

[cbk412]

Here is a rip from Map 2 today. I70 E going from Columbus for about an hour towards Pittsburgh was not fun. Thankfully the ride handled everything but I can't do much about the other nut jobs on the road. Burlington tomorrow.

[Cannon @ BMS]

Please upload a log with 100% pedal input throughout the entirety of the pull.
Thanks!

[YanisJ]

Cannon @ BMS, Can you take a look at my log on post #375, please? Looks like it fell through the cracks. TIA

[Cannon @ BMS]

Cannon @ BMS, Can you take a look at my log on post #375, please? Looks like it fell through the cracks. TIA

Hey YanisJ sorry I didn't see that! That log actually looks really solid and that's a nice, happy AFR for this platform! I typically like to see pump gas between mid 11's and low 12's.
I would suggest going into map 6 and setting all boost levels to "5" between 3000-6500 rpms. For the boost levels below 3000, set them to 2.

[YanisJ]

Hey YanisJ sorry I didn't see that! That log actually looks really solid and that's a nice, happy AFR for this platform! I typically like to see pump gas between mid 11's and low 12's.
I would suggest going into map 6 and setting all boost levels to "5" between 3000-6500 rpms. For the boost levels below 3000, set them to 2.

Amazing! Will do. Stay strong.

[BoboTwo]

JB4 Installed and running MAP 2 w/E30. Set the Fuel Bias to 60 across the board, and Open Fuel Loop to 30. EWG connection not connected. Best so far is 4.69 w/rollout!
Wow! SPT(CVT) not shifting which is good.
0 - 60 SPT goes up to 5700 6000 rpm and holds. AFR's between 11.8 - 13 which is good. Car really feels quick.
Beat a 2022 GTi 7 speed 0 - 60 today by 3 car lengths.
You don't want the SPT to shift unless you're in the mountains hitting the twists. If I don't hold the pedal long enough from the start, at least 2 seconds, the SPT will shift, and the result will
be ~ 0.5 seconds slower. That's huge... so you don't want 'fake shifts'.

[Conger85]

Would love for someone to take a look at my logs and let me know how I can setup map 6. I can only get 91 where in at unfortunately. I also have a remark catback and ets cai. I have pulls on the stock map and map1

[BoboTwo]

Would love for someone to take a look at my logs and let me know how I can setup map 6. I can only get 91 where in at unfortunately. I also have a remark catback and ets cai. I have pulls on the stock map and map1

Hello Congo!

You can't get E85? That's the way to go. This engine loves E30

[Conger85]

Hello Congo!

You can't get E85? That's the way to go. This engine loves E30

Only way to get it would be to order it online or taking a lengthy road trip 3 hours each way to buy it. I haven't found anywhere around here that has it. There's no pumps here that have it I know that for sure.

[Nate_2022_WRX]

Just picked up my WRX a couple months ago and looking into tuning options (and everything else). I think I've settled on the JB4 but had a few questions before I pulled the trigger.

So, the relevant info. We're at about 300' elevation here and have easy access to E85. The temperature varies a great deal however; 30°F winter morning, 115°F summer afternoon.

I'm wondering if I'll need to tune for different seasons, and how adaptable a tune with the JB4 can be with various ethanol fuel ratios (with the sensor installed, of course).

Looking forward to getting some more power out this engine and burning a lot of ethanol in the process, thanks.

[Terry @ BMS]

The JB4 will compensate for fuel and weather on it's own But you'll likely want to use a lower map (selected via app) when on straight gas and then a higher map to take advantage of the E85 mixture when running it.

Right now we support up to around E35.

[Nate_2022_WRX]

The JB4 will compensate for fuel and weather on it's own But you'll likely want to use a lower map (selected via app) when on straight gas and then a higher map to take advantage of the E85 mixture when running it.

Right now we support up to around E35.

Ok. I thought the JB4 would select/modify maps based off of the input from the Fuel-It! system. Any chance that functionality will be available in the future?

[User1029]

Outback XT: JB4, Map5, BMS intake, Perrin chargepipe, Lachute Catted ********, ETS TMIC, stock EWG connection

Difference between two maps are A/F adjustments

[BoboTwo]

Outback XT: JB4, Map5, BMS intake, Perrin chargepipe, Lachute Catted ********, ETS TMIC, stock EWG connection

Difference between two maps are A/F adjustments

CVT(SPT) still holding up at 345 Ft-Lbs of torque?

[User1029]

It’s doing great with 10,000 miles

[Cannon @ BMS]

Nice!

[squarejournal]

Thoughts on my short pull? Looking for analysis on the AFR on WOT