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Old 02-07-2014, 11:14 AM   #1
Chuls12590
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Default Do I need a tune?

I have a 2014 wrx that's stage 2 via Cobb access port, short ram intake, down pipe and spt cat back. Which is what's in the car now. I just picked up a Perrin turbo inlet and deuschqorks dw65c fuel pump. Would I need a custom tune to put these components on? I got the fuel pump becuase I've seen it suggested here quite a few times and the inlet is just to help the car breath easier.
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Old 02-07-2014, 11:17 AM   #2
BroBroBroBroBro
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the ecu should figure it all out dont worry no tune needed
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Old 02-07-2014, 11:19 AM   #3
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Quote:
Originally Posted by Chuls12590 View Post
I have a 2014 wrx that's stage 2 via Cobb access port, short ram intake, down pipe and spt cat back. Which is what's in the car now. I just picked up a Perrin turbo inlet and deuschqorks dw65c fuel pump. Would I need a custom tune to put these components on? I got the fuel pump becuase I've seen it suggested here quite a few times and the inlet is just to help the car breath easier.
Yes you would need a tune for the inlet... not so much the pump. The reasoning is that anytime you change the way the airflow enters the engine (including pre turbo), it changes the fueling requirements.
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Old 02-07-2014, 11:40 AM   #4
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Quote:
Originally Posted by Chuls12590 View Post
I have a 2014 wrx that's stage 2 via Cobb access port, short ram intake, down pipe and spt cat back. Which is what's in the car now. I just picked up a Perrin turbo inlet and deuschqorks dw65c fuel pump. Would I need a custom tune to put these components on? I got the fuel pump becuase I've seen it suggested here quite a few times and the inlet is just to help the car breath easier.
You should get a tune. But be weary of who tunes your car. A bad tune is a big ol' fashioned no no. Do research my mans. Ask around your area and get reviews. If you plan on making more mod and staying in the same area then you'll be going back again. I've been tuned 3 times now by a shop 45 min away because the shop 10 minutes away has a terrible tuner (the guy who owns the shop thinks that reading a book on tuning is all you need to know to tune 400whp STi's).

When I was down at my shop there was a guy there who was having his dad's STi retuned because the difference in their STi's (had all same bolt ons) was 70hp, and the guy who had tuned it the first time was the guy that works 10 min from me.
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Old 02-07-2014, 11:54 AM   #5
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Efi logics is the closest place I spoke to him and he suggested i do an aftermarket top mount
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Old 02-07-2014, 11:55 AM   #6
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And bigger injectors and equal length headers il probably just drop in the fuel pump and hold off on the inlet for now.
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Old 02-07-2014, 12:01 PM   #7
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You do NOT need a tune for an inlet.

http://forums.nasioc.com/forums/show....php?t=1681753

Quote:
Do I need engine management with a turbo inlet? No tuning or engine management is needed for this mod, just bolt it up and go. Mind you the full benefits of this or any other mod won't be seen until tuned.
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Old 02-07-2014, 12:02 PM   #8
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Quote:
Originally Posted by Chuls12590 View Post
And bigger injectors and equal length headers il probably just drop in the fuel pump and hold off on the inlet for now.
The ELH would need a tune as well as you are indirectly changing the flow and when the turbo spools
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Old 02-07-2014, 12:03 PM   #9
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Originally Posted by HinshawWRX View Post
You do NOT need a tune for an inlet.

http://forums.nasioc.com/forums/show....php?t=1681753
Its not NEEDED you are correct, but gains will be marginal until tuned
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Old 02-07-2014, 12:06 PM   #10
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Quote:
Originally Posted by 2Fast4U1DAY View Post

Its not NEEDED you are correct, but gains will be marginal until tuned
Gains will be marginal anyway. Its just an inlet, post maf.......
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Old 02-07-2014, 12:17 PM   #11
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Originally Posted by Cathexis View Post

Gains will be marginal anyway. Its just an inlet, post maf.......
Agreed.
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Old 02-07-2014, 01:34 PM   #12
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It's a philosophical decision to go ELH. I would never go there because you lose the Subi rumble of ULH. I've heard some good sounding ELH (COBB for example makes a good one), but the ones that don't make you sound like a Honda.

The good side to ELH is that you can gain ~20hp...so nice trade off if you're really looking for that extra something. I'm not though...not yet.
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Old 02-07-2014, 01:54 PM   #13
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Quote:
Originally Posted by Oddisey View Post
It's a philosophical decision to go ELH. I would never go there because you lose the Subi rumble of ULH. I've heard some good sounding ELH (COBB for example makes a good one), but the ones that don't make you sound like a Honda.

The good side to ELH is that you can gain ~20hp...so nice trade off if you're really looking for that extra something. I'm not though...not yet.
And equalized exhaust pulses and more equal cylinder temps. They are more effecient.
I have elh on mine and have to say its one of the best mods ive done. Love them and imo they sound way better. Motor is indeed happier with them. I do things for effeciency and power though vs for the sound or look....
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Old 02-08-2014, 08:33 PM   #14
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I run a Perrin ELH on my Forester, it knocks down a lot of the drone that really sucks with the big box. With a Maddad Whisper exhaust it sounds mean, not at all buzzy. I did try running with an STI muffler, and it sounded horrible, really resonated and buzzed. So if someone complains that ELH made their car sound like a Honda, perhaps they had the wrong muffler.
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Old 02-09-2014, 12:40 AM   #15
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Quote:
Originally Posted by 2Fast4U1DAY View Post
Its not NEEDED you are correct, but gains will be marginal until tuned
Hence the thread, DO I NEED A TUNE....

No, OP does not.
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Old 02-09-2014, 02:17 AM   #16
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Quote:
Originally Posted by HinshawWRX View Post

Hence the thread, DO I NEED A TUNE....

No, OP does not.
I should have phrased it better the first time but I was rushing. Sorry I will put my due diligence next time
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Old 02-09-2014, 11:01 AM   #17
Chuls12590
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Talking

I don't really want to give up the subie rumble though I mean it is kind of the trademark of subaru. I'm just trying to make the car breathe easier pick up some ponies and stay within the parameters of not breaking ****. I got a good deal on the parts and I spoke with someone at EFI logics and he said the fuel pump will make the car run richer and he wouldn't suggest running Wide open throttle with the turbo inlet. I may just try and pick up aftermarket unequal length headers, up pipe since I have the headers off and why not? The process west top mount and injectors idk what size haven't done any research yet and tell myself thats the line. What do you guys think decent power within the parameters of the 2014 drivetrain?
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Old 02-09-2014, 11:12 AM   #18
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OTS tunes are ok but remember they do not works for all the cars. Protune is the way to go man.search on nasioc for reputable tuners and drive over there to take advantage of the stage 2 STI power
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Old 02-09-2014, 01:32 PM   #19
Chuls12590
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I had to load the lwg pressure map becuase I was over boosting
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Old 02-09-2014, 01:46 PM   #20
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Quote:
Originally Posted by 2Fast4U1DAY View Post
Yes you would need a tune for the inlet... not so much the pump. The reasoning is that anytime you change the way the airflow enters the engine (including pre turbo), it changes the fueling requirements.
This is 100% wrong. Pay no attention to this guy. You do not need a tune. Save your money.
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Old 02-10-2014, 06:23 AM   #21
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...and you will not run rich with installing the pump without a tune.
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Old 02-10-2014, 09:19 PM   #22
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Quote:
Originally Posted by HinshawWRX View Post
Hence the thread, DO I NEED A TUNE....

No, OP does not.
Ah he does have a short ram intake, he needs a tune for that. The new round of mods dont need a tune, but he should have a custom tune with the stuff thats already on the car.
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Old 02-11-2014, 01:40 AM   #23
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He doesn't need a custom tune with basic stage 2. OTS cobb maps are good enough for that (just not as optimal for best gains). However, there is that little boost creep, downpipe problem.
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Old 02-11-2014, 01:58 AM   #24
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Quote:
Originally Posted by UsedSti View Post
OTS tunes are ok but remember they do not works for all the cars. Protune is the way to go man.search on nasioc for reputable tuners and drive over there to take advantage of the stage 2 STI power
Agreed. I talk to a guy at ecs performance and he said the cobb ots maps are ok but should really only be used temporarily until you can get a pro tune the car will run the way it's supposed to cuz every car is diff
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Old 02-11-2014, 01:58 AM   #25
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Quote:
Originally Posted by Chuls12590 View Post
I had to load the lwg pressure map becuase I was over boosting
I had to do the same thing, did you run into what felt like a rev limiter? This was followed by the check engine light, traction control light, and a blinking cruise light. Used the Accessport and pulled a P0244 code for over boosting. Running the lwg map now and it's running much better.
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