Cobb Stage 2 w/ SF intake and stock fuel

srt-4 · 02-14-2020, 04:43 AM

Ok before you roast, I did a search and read the recommended threads. I'm still ill informed.

So, I'm getting stage 2, SF intake/box, air/oil separator, and a protune on an ' 18 type RA. I know on Cobb's site they don't recommend this setup, but the tuner said there is a lot of misinformation out there regarding this setup and says i'll be fine/safe. This is a very reputable shop that does a wide variety of cars and is a COBB certified gold protuner. (Prolly just means they paid for the title lmao)

So, since I'm sure there is a lot more people that have experience with this setup now vs the old threads I found...I'd love to hear input on people that have actually run this setup or tuners that have tuned it. Assuming no other mods, should this be ok to run with a protune? Is Cobb's non-recommendation simply because it is risky with an OTS tune?

I appreciate any input. Thank you.

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horsePOOGAS · 02-14-2020, 09:00 AM

If the OTS map notes don't list the mods that will work with it then it is not recommended to be used and there is a risk of a lean condition.

Now if you're getting a protune, then the tuner will be able to take care of any mods done to the car and you shouldn't need to worry. You're on the right track my listening to your tuner and what he recommends.

08redWRX · 02-14-2020, 10:14 AM

Cobb doesn’t do it for their OTS map because they run rich putting IDCs higher with just a DP. So when you add the intake the stock injectors will be running at max if it was an OTS tune from Cobb. With a protune he will tune it to be efficient and safe so you won’t have to worry.

sluflyer06 · 02-14-2020, 10:46 AM

Skip the intake IMO, the airbox is better and you can use the money for something else. There is no better intake than the stock airbox until you are pushing enough power to actually need a new one, which you aren't at stage 2. Even truer for the 18RA and 19-20 STI's which have a revised airbox and scoop setup.

I know they sound cool but IAT's will suffer and MAF scaling won't be as good as OEM.

srt-4 · 02-14-2020, 11:26 AM

Thank you guys so much. This is pretty much exactly what i was looking for. Thanks for the help.

wrxlaunch · 02-15-2020, 01:39 PM

Quote:

Originally Posted by srt-4

Ok before you roast, I did a search and read the recommended threads. I'm still ill informed.

So, I'm getting stage 2, SF intake/box, air/oil separator, and a protune on an ' 18 type RA. I know on Cobb's site they don't recommend this setup, but the tuner said there is a lot of misinformation out there regarding this setup and says i'll be fine/safe. This is a very reputable shop that does a wide variety of cars and is a COBB certified gold protuner. (Prolly just means they paid for the title lmao)

So, since I'm sure there is a lot more people that have experience with this setup now vs the old threads I found...I'd love to hear input on people that have actually run this setup or tuners that have tuned it. Assuming no other mods, should this be ok to run with a protune? Is Cobb's non-recommendation simply because it is risky with an OTS tune?

I appreciate any input. Thank you.

So are you getting a Pro-tune or are you using OTS for the mods? If Pro-tune,
Mods shouldn't matter much since the tune will be tailored for the car. The next concern should be injectors, fuel pump or Fuel Pressure Regulator.

OTS Map has Required parts list...

srt-4 · 02-16-2020, 02:07 AM

Quote:

Originally Posted by wrxlaunch

So are you getting a Pro-tune or are you using OTS for the mods? If Pro-tune,
Mods shouldn't matter much since the tune will be tailored for the car. The next concern should be injectors, fuel pump or Fuel Pressure Regulator.

OTS Map has Required parts list...

Protune. Will stay on this setup for a while and see how i like it. Next step will be fuel system with E85 conversion, but that will probably be next tax season lol.

BurninSTI · 02-16-2020, 11:01 PM

Running it right now, except with an upgraded pump and regulator pushing higher fuel pressure. Without a new pump and increased pressure it's dangerous. The stock injectors at stock pressure will get overrun but up the psi and tune for it, you're gtg. There's more to get adjusted as well in the tune. If you want more info lmk but I'm not here to steal anyone's business.

BurninSTI · 02-16-2020, 11:06 PM

Quote:

Originally Posted by wrxlaunch

So are you getting a Pro-tune or are you using OTS for the mods? If Pro-tune,
Mods shouldn't matter much since the tune will be tailored for the car. The next concern should be injectors, fuel pump or Fuel Pressure Regulator.

OTS Map has Required parts list...

Parts list schmartslist... do the fpr and pump, skip the injectors... prove me wrong besides what cobb has to say.

02-14-2020, 04:43 AM	#1
srt-4 Scooby Newbie Member#: 99268 Join Date: Oct 2005 Location: Clayton, NC Vehicle: 2018 Sti Type RA Blue	Cobb Stage 2 w/ SF intake and stock fuel Ok before you roast, I did a search and read the recommended threads. I'm still ill informed. So, I'm getting stage 2, SF intake/box, air/oil separator, and a protune on an ' 18 type RA. I know on Cobb's site they don't recommend this setup, but the tuner said there is a lot of misinformation out there regarding this setup and says i'll be fine/safe. This is a very reputable shop that does a wide variety of cars and is a COBB certified gold protuner. (Prolly just means they paid for the title lmao) So, since I'm sure there is a lot more people that have experience with this setup now vs the old threads I found...I'd love to hear input on people that have actually run this setup or tuners that have tuned it. Assuming no other mods, should this be ok to run with a protune? Is Cobb's non-recommendation simply because it is risky with an OTS tune? I appreciate any input. Thank you. * Registered users of the site do not see these ads.

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02-14-2020, 09:00 AM	#2
horsePOOGAS Scooby Newbie Member#: 450712 Join Date: Jul 2016 Location: Indiana Vehicle: 04 STi WRB	If the OTS map notes don't list the mods that will work with it then it is not recommended to be used and there is a risk of a lean condition. Now if you're getting a protune, then the tuner will be able to take care of any mods done to the car and you shouldn't need to worry. You're on the right track my listening to your tuner and what he recommends.

02-14-2020, 10:14 AM	#3
08redWRX Scooby Newbie Member#: 186068 Join Date: Aug 2008 Chapter/Region: South East Location: NC Vehicle: 2019 STi DGM	Cobb doesn’t do it for their OTS map because they run rich putting IDCs higher with just a DP. So when you add the intake the stock injectors will be running at max if it was an OTS tune from Cobb. With a protune he will tune it to be efficient and safe so you won’t have to worry.

02-14-2020, 10:46 AM	#4
sluflyer06 Scooby Specialist Member#: 111641 Join Date: Apr 2006 Chapter/Region: MWSOC Location: St. Louis, MO Vehicle: 2020 CWP STi RIP - 06' WRX w/ 6spd	Skip the intake IMO, the airbox is better and you can use the money for something else. There is no better intake than the stock airbox until you are pushing enough power to actually need a new one, which you aren't at stage 2. Even truer for the 18RA and 19-20 STI's which have a revised airbox and scoop setup. I know they sound cool but IAT's will suffer and MAF scaling won't be as good as OEM.

02-14-2020, 11:26 AM	#5
srt-4 Scooby Newbie Member#: 99268 Join Date: Oct 2005 Location: Clayton, NC Vehicle: 2018 Sti Type RA Blue	Thank you guys so much. This is pretty much exactly what i was looking for. Thanks for the help.

02-16-2020, 11:01 PM	#8
BurninSTI Scooby Newbie Member#: 510655 Join Date: Jan 2020	Running it right now, except with an upgraded pump and regulator pushing higher fuel pressure. Without a new pump and increased pressure it's dangerous. The stock injectors at stock pressure will get overrun but up the psi and tune for it, you're gtg. There's more to get adjusted as well in the tune. If you want more info lmk but I'm not here to steal anyone's business.