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Old 07-19-2021, 04:42 PM   #3101
DDP77
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2011 WRX STI Limited
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2011 WRX STI limited
Add-ons:
GS Down catted J Pipe
Turbosmart 45 Hyper Wastegate
Hybrid BOV GFB
Borla unequal Headers
Borla Attack Catback
Aftermarket Up-Pipe W Divorced Wastegate

OEM Wastgate Lock

Cobb Access Port

Stage2 93 v350 Boost Select
This was a 3rd Gear pull on a flat surface dry pavement.
Noob to the Cobb and Subbi world.
Former RX7 - RX8 Tech


Hi all those are the add-on's on my vehicle. I performed a compression test with 0 throttle and all presures were in the 128 with the highest in 130. i might have the wrong map flashed or i dont know but Groot is not happy. it ran well for a while and now it just stated sputtering and hesitating. Your help by looking at this log would be greatly appreciated and suggestions are also welcome. Thank you in advance.



https://drive.google.com/file/d/1DFu...ew?usp=sharing
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Old 11-12-2021, 02:25 PM   #3102
lutek34
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2017 WRX Premium
only mods:
AEM Cold air intake
rear muffler delete

Hello again
Curently I'm runing on Cobb Stage 1, 91, v.4.00, normal wastegate. After 500km, DAM droped to 0.688 and also during hard accelerating I falt jerk, so I made 3rd gear pull log, and I've notice the throttle drop when boost is reaching 18.7 PSI. Should I try High Wastegate?

https://datazap.me/u/lutek34/log-163...0&data=6-19-21
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Old 11-12-2021, 03:22 PM   #3103
tegxsi
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Quote:
Originally Posted by DDP77 View Post
2011 WRX STI limited
Add-ons:
GS Down catted J Pipe
Turbosmart 45 Hyper Wastegate
Hybrid BOV GFB
Borla unequal Headers
Borla Attack Catback
Aftermarket Up-Pipe W Divorced Wastegate

OEM Wastgate Lock

Cobb Access Port

Stage2 93 v350 Boost Select
This was a 3rd Gear pull on a flat surface dry pavement.
Noob to the Cobb and Subbi world.
Former RX7 - RX8 Tech


Hi all those are the add-on's on my vehicle. I performed a compression test with 0 throttle and all presures were in the 128 with the highest in 130. i might have the wrong map flashed or i dont know but Groot is not happy. it ran well for a while and now it just stated sputtering and hesitating. Your help by looking at this log would be greatly appreciated and suggestions are also welcome. Thank you in advance.



https://drive.google.com/file/d/1DFu...ew?usp=sharing

Dude you are in the wrong forum. EJ's need a wideband.
You are running a external gate on a OTS map? WTF!? RIP ringlands



Quote:
Originally Posted by lutek34 View Post
2017 WRX Premium
only mods:
AEM Cold air intake
rear muffler delete

Hello again
Curently I'm runing on Cobb Stage 1, 91, v.4.00, normal wastegate. After 500km, DAM droped to 0.688 and also during hard accelerating I falt jerk, so I made 3rd gear pull log, and I've notice the throttle drop when boost is reaching 18.7 PSI. Should I try High Wastegate?

https://datazap.me/u/lutek34/log-163...0&data=6-19-21
I thought your boost was low for stage 1 OTS then I noticed that your intake air temps are close to freezing. The tune reduces boost target when IAT are very low.
You should be logging wastegate and ignition.
I think the low wastegate map would help avoid throttle closure or you should get a protune.

Last edited by tegxsi; 11-12-2021 at 03:33 PM.
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Old 11-13-2021, 11:15 AM   #3104
lutek34
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Quote:
Originally Posted by tegxsi View Post
I thought your boost was low for stage 1 OTS then I noticed that your intake air temps are close to freezing. The tune reduces boost target when IAT are very low.
You should be logging wastegate and ignition.
I think the low wastegate map would help avoid throttle closure or you should get a protune.
I just switched map to the High Waste Gate version and made 3rd gear pull. For me is better then before, didn't feel any jerk during this pull. What do you think now?

https://datazap.me/u/lutek34/log-163...13-18-20-22-23
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Old 11-13-2021, 06:02 PM   #3105
tegxsi
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Quote:
Originally Posted by lutek34 View Post
I just switched map to the High Waste Gate version and made 3rd gear pull. For me is better then before, didn't feel any jerk during this pull. What do you think now?

https://datazap.me/u/lutek34/log-163...13-18-20-22-23
you shouldn't got WOT below 2500rpm

boost curve is like oscillating like a roller coaster... I think the low wastegate map might be better for cold weather. Other than that it looks alright.

Proper tune with 3-port EBCS will offer the best boost control.
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Old 11-13-2021, 09:17 PM   #3106
silvapain
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Quote:
Originally Posted by tegxsi View Post
you shouldn't got WOT below 2500rpm

boost curve is like oscillating like a roller coaster... I think the low wastegate map might be better for cold weather. Other than that it looks alright.

Proper tune with 3-port EBCS will offer the best boost control.

There’s nothing at all wrong with going WOT at 2k on the FA20.
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Old 12-05-2021, 04:25 PM   #3107
Unr3al_WRX
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Default reveiw please

I am by no means a pro tuner but I'm currently tuning my own car using ATR. Learning as I go. Need some constructive criticism. Boost is turned down a bit while I play with the tune.



2020 FA20DIT WRX 6MT


GS intake
GS ECBS
GS turbo inlet
GS FMIC
IBR full TGV delete
EGR delete
IAG comp AOS
Catted j pipe
cat back
e30 fuel no flex sensor.



https://datazap.me/u/unr3alwrx/log-1...ata=3-11-22-30




I appreciate the input.

Last edited by Unr3al_WRX; 12-05-2021 at 04:29 PM. Reason: forgot a couple parts
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Old 12-06-2021, 04:19 PM   #3108
Unr3al_WRX
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Here’s another one

https://datazap.me/u/unr3alwrx/log-1...-33&zoom=3-131

Not sure, some logging lag at the end but it still got the run.
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Old 12-08-2021, 07:26 PM   #3109
tegxsi
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Quote:
Originally Posted by Unr3al_WRX View Post
Here’s another one

https://datazap.me/u/unr3alwrx/log-1...-33&zoom=3-131

Not sure, some logging lag at the end but it still got the run.
Looks good so far. Are you sure you have E30 in the tank? Seeing some FKL.
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Old 12-08-2021, 07:52 PM   #3110
Unr3al_WRX
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Quote:
Originally Posted by tegxsi View Post
Looks good so far. Are you sure you have E30 in the tank? Seeing some FKL.


It’s definitely at e30 mathematically. Probably actually a couple percent more. 15.9 gallon tank was at about 1/8 left added 4.9 gallons of e85 and filling the rest with 93 octane. There is a possibility that the gas station has a lower ethanol content being close to winter as well. That variable is currently unknown, looking at getting a test kit. I do not have a flex fuel sensor. Yet.

I did pull a half a degree of timing, seemed to clean up that FKL. DAM hasn’t dropped. Last virtual dyno I ran was 350 hp 362 lbft. Not entirely sure how to post that graph here.
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Old 12-09-2021, 05:56 PM   #3111
tegxsi
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Quote:
Originally Posted by Unr3al_WRX View Post
It’s definitely at e30 mathematically. Probably actually a couple percent more. 15.9 gallon tank was at about 1/8 left added 4.9 gallons of e85 and filling the rest with 93 octane. There is a possibility that the gas station has a lower ethanol content being close to winter as well. That variable is currently unknown, looking at getting a test kit. I do not have a flex fuel sensor. Yet.

I did pull a half a degree of timing, seemed to clean up that FKL. DAM hasn’t dropped. Last virtual dyno I ran was 350 hp 362 lbft. Not entirely sure how to post that graph here.
It's best to check what's ethanol% coming out of the pump in your area but being a little on the higher side isn't a problem for full time closed loop.

Usually should be able to run a few more degrees and ramp up timing up top. Maybe try running flat 11.5-11.6 AFR instead of tapering.
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Old 12-28-2021, 12:45 PM   #3112
mikemay
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Hi there,

New here and very new to mods but I'm pretty sure there something really wrong. On idle my AF learning 1 is -26. any help would be much appreciated. Below is log and mods. I wasn't sure if I should post here or start new thread. Log is at idle with a bit of throttle play.

https://datazap.me/u/mike1980/log-16...?log=0&data=28

- 2017 WRX Sport Tech
-Cobb Stage 1 + Big SF Power Package
-Boomba recirculating bypass valve
-Cobb acess port
- 6MT
- Fuel 94 petro Canada
- Tune OTS Stage1+BigSF 93*v400
- Gear used is N at idle and bit of throttle play

Thanks Mike
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Old 12-28-2021, 06:16 PM   #3113
tegxsi
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Originally Posted by mikemay View Post
Hi there,

New here and very new to mods but I'm pretty sure there something really wrong. On idle my AF learning 1 is -26. any help would be much appreciated. Below is log and mods. I wasn't sure if I should post here or start new thread. Log is at idle with a bit of throttle play.

https://datazap.me/u/mike1980/log-16...?log=0&data=28

- 2017 WRX Sport Tech
-Cobb Stage 1 + Big SF Power Package
-Boomba recirculating bypass valve
-Cobb acess port
- 6MT
- Fuel 94 petro Canada
- Tune OTS Stage1+BigSF 93*v400
- Gear used is N at idle and bit of throttle play

Thanks Mike
It doesn't look horribly off but not great either...
The total fuel trim = AF Learn1 + AF Correction1. I'm seeing about negative 12-16% correction. On these cars +/-10% is acceptable for AF learn.

Clean the MAF sensor. Make sure the sensor seated properly and the electrical connector is secure and free of corrosion. I suggest you pack the connectors on the extension harness with a little dielectric grease to protect it from moisture.

Cobb intakes can be a little touchy with filter placement. Make sure the filter is straight and only insert the filter flange about 3/4-1" inch into the pipe.

Last edited by tegxsi; 12-28-2021 at 06:24 PM.
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Old 12-28-2021, 07:26 PM   #3114
mikemay
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Quote:
Originally Posted by tegxsi View Post
It doesn't look horribly off but not great either...
The total fuel trim = AF Learn1 + AF Correction1. I'm seeing about negative 12-16% correction. On these cars +/-10% is acceptable for AF learn.

Clean the MAF sensor. Make sure the sensor seated properly and the electrical connector is secure and free of corrosion. I suggest you pack the connectors on the extension harness with a little dielectric grease to protect it from moisture.

Cobb intakes can be a little touchy with filter placement. Make sure the filter is straight and only insert the filter flange about 3/4-1" inch into the pipe.
Thanks for reply I have done all that but the dielectric grease part and also replaced spark plugs. I have also got P0300 code 5 times but with no CEl well actually got CEL once with P0300 misfire code. So far the P0300 only seems to happen on cold start when below 0 outside cold cranking. I bought a new battery and going to put it in tomorrow(was due anyways) but no idea if weak battery would cause P0300.

I was thinking of buying a smoke test machine to check for intake leaks but they are like $300 so don't want to waste the money till I really look around under hood.

The P0300 is definitely a concern I would think?
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Old 12-28-2021, 10:14 PM   #3115
tegxsi
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Originally Posted by mikemay View Post
Thanks for reply I have done all that but the dielectric grease part and also replaced spark plugs. I have also got P0300 code 5 times but with no CEl well actually got CEL once with P0300 misfire code. So far the P0300 only seems to happen on cold start when below 0 outside cold cranking. I bought a new battery and going to put it in tomorrow(was due anyways) but no idea if weak battery would cause P0300.

I was thinking of buying a smoke test machine to check for intake leaks but they are like $300 so don't want to waste the money till I really look around under hood.

The P0300 is definitely a concern I would think?
Did you drive the car much after modding?
Go over all the clamps and hoses again and see what happens...

P0300 random misfires can happen at really cold temperatures. Carbon build up on the valves might play a role in this too. It should smooth out once you get some heat into the engine.
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Old 12-29-2021, 10:10 AM   #3116
mikemay
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Originally Posted by tegxsi View Post
Did you drive the car much after modding?
Go over all the clamps and hoses again and see what happens...

P0300 random misfires can happen at really cold temperatures. Carbon build up on the valves might play a role in this too. It should smooth out once you get some heat into the engine.
Yes drove the car for a few months after boomba BPV install. the intake has been on since June this year.
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Old 12-29-2021, 06:59 PM   #3117
mikemay
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Here's a WOT 3rd gear pull. How does it look?

https://datazap.me/u/mike1980/log-16...?log=0&data=28

- 2017 WRX Sport Tech
-Cobb Stage 1 + Big SF Power Package
-Boomba recirculating bypass valve
-Cobb acess port
- 6MT
- Fuel 94 petro Canada
- Tune OTS Stage1+BigSF 93*v400
- Gear used iis 3rd WOT

Thanks
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Old 12-29-2021, 06:59 PM   #3118
mikemay
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Here's a WOT 3rd gear pull. How does it look?

https://datazap.me/u/mike1980/log-16...?log=0&data=28

- 2017 WRX Sport Tech
-Cobb Stage 1 + Big SF Power Package
-Boomba recirculating bypass valve
-Cobb acess port
- 6MT
- Fuel 94 petro Canada
- Tune OTS Stage1+BigSF 93*v400
- Gear used iis 3rd WOT

Thanks
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Old 12-29-2021, 08:39 PM   #3119
tegxsi
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Quote:
Originally Posted by mikemay View Post
Here's a WOT 3rd gear pull. How does it look?

https://datazap.me/u/mike1980/log-16...?log=0&data=28

- 2017 WRX Sport Tech
-Cobb Stage 1 + Big SF Power Package
-Boomba recirculating bypass valve
-Cobb acess port
- 6MT
- Fuel 94 petro Canada
- Tune OTS Stage1+BigSF 93*v400
- Gear used iis 3rd WOT

Thanks
Looks alright for OTS... I thought something was strange was going on with the boost pressure but you let up on the pedal slightly.
Similar issue with your idle logs. AF correction is on the negative 10-14%. That's what a custom tune will fix but it's running fine.

Last edited by tegxsi; 12-29-2021 at 08:48 PM.
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Old 12-29-2021, 09:04 PM   #3120
mikemay
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Originally Posted by tegxsi View Post
Looks alright for OTS... I thought something was strange was going on with the boost pressure but you let up on the pedal slightly.
Similar issue with your idle logs. AF correction is on the negative 10-14%. That's what a custom tune will fix but it's running fine.
Hey thanks again for reply. That gives me peace of mind so thanks. Going to get a tune but I want to get all parts on I think I want first. Want to go turbo back exhaust and probably a bigger intercooler.

Also the misfire has gone away for now after I put in new battery but it was also warmer outside today
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Old 12-29-2021, 09:57 PM   #3121
tegxsi
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Originally Posted by mikemay View Post
Hey thanks again for reply. That gives me peace of mind so thanks. Going to get a tune but I want to get all parts on I think I want first. Want to go turbo back exhaust and probably a bigger intercooler.

Also the misfire has gone away for now after I put in new battery but it was also warmer outside today
I would add EBCS to that list. A good intercooler would be good to have. I would go flexfuel you have access to E85.
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Old 12-29-2021, 10:32 PM   #3122
mikemay
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Originally Posted by tegxsi View Post
I would add EBCS to that list. A good intercooler would be good to have. I would go flexfuel you have access to E85.
Unfortunately virtually no E85 in Toronto area. One station on a Indian reserve about 100km north of me
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Old 12-30-2021, 04:21 PM   #3123
That_Boosted_Life
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intercooler and ebcs would be the best especially the intercooler as the stock one isnt that great in the hot weather and when turning up the boost.

The ebcs you will need to install on a etune/dyno tune as no OTS map that i am aware of supports that unless you get one through a tuner as some offer their own ots maps (Ron watson i believe specifies that a regular etune is needed as it requires a lot more fiddling with the tune to get the boost right as the ebcs is more precise)
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Old 12-31-2021, 03:18 PM   #3124
mikemay
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Originally Posted by That_Boosted_Life View Post
intercooler and ebcs would be the best especially the intercooler as the stock one isnt that great in the hot weather and when turning up the boost.

The ebcs you will need to install on a etune/dyno tune as no OTS map that i am aware of supports that unless you get one through a tuner as some offer their own ots maps (Ron watson i believe specifies that a regular etune is needed as it requires a lot more fiddling with the tune to get the boost right as the ebcs is more precise)
Thanks for reply. Yes I was aware of a tune needed for EBCS. I have heard lots of good things about Ron Waston as well. I actually was checking out his website last week. Hopefully he will E-Tune cars running on Candain pump gas.

Also I fixed my low STFT. I took tegxsi advice from above and put some dielectric grease on both ends of the COBB electrical wire harness extension going to the MAF sensor. re-flashed the OTS map drove the car around a bit and my numbers are real good like better then I have ever seen them -7 to +7 or so) so big thanks to tegxsi fort that zi still want to do a intake smoke test for peace of mind at some point when I get a smoke tester to be sure I have no leaks before tune.
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Old 12-31-2021, 04:12 PM   #3125
That_Boosted_Life
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Quote:
Originally Posted by mikemay View Post
l... I actually was checking out his website last week. Hopefully he will E-Tune cars running on Candain pump gas.
I would assume so. As long as they use the (R+M)/2 method you should be ok. If not you may have to look up conversions.

I know in Britain they use just the RON measurement so their roughly 97 octane is actually equivalent to our 91 octane.
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