question for guys with headers - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

Xdragonxb0i · 04-19-2013, 12:36 AM

How did your car feel after you installed it with a ecu reset? Mines feel sluggish, i definitely need a tune. Do you guys think you need a tune after your header install?

sierra · 04-19-2013, 12:45 AM

Quote:

Originally Posted by Xdragonxb0i

How did your car feel after you installed it with a ecu reset? Mines feel sluggish, i definitely need a tune. Do you guys think you need a tune after your header install?

It always feels sluggish with a lousy throttle response after a reset.
It's self learning and I wonder if it might be better to leave it alone?

Gixxersixxerman · 04-19-2013, 12:48 AM

I will talk about my brief spin in @Concept 3 LED FRS, but that torque dip is all but gone, just barely noticeable.. And honestly felt like a whole new car, with a whole new sound.. It just pulls so much harder.. But I tagged him so he could give his impression

mashal · 04-19-2013, 12:49 AM

How long has it been since you did your headers?
After I installed my CAI , I reset the ECU and it was "sluggish" for about 5-10 minutes .. Haven't had it happen after that

Xdragonxb0i · 04-19-2013, 12:52 AM

Quote:

Originally Posted by mashal

How long has it been since you did your headers?
After I installed my CAI , I reset the ECU and it was "sluggish" for about 5-10 minutes .. Haven't had it happen after that

finally installed it today. Drove it for about 5 miles with the reset ecu, i am just asking for your opinion. I am sure the ecu will adjust to it soon.

Dynotronics1 · 04-19-2013, 08:12 AM

Trust me, you need a recalibration with the header. We have seen several cases where the header/cai combo are causing a over lean bog due to over scavenging. Tuning is cheap, why chance it ?

Opposed · 04-19-2013, 10:36 AM

What kind of header are we talking about?

Xdragonxb0i · 04-19-2013, 11:39 AM

P&L headers.
@dynoyronics. I was hoping I could run my car without a tune for a few months to save up. Right now. My car isn't enjoyable

Clipdat · 04-19-2013, 11:55 AM

The pedal delay goes away after ~100 miles.

JDKane527 · 04-19-2013, 12:06 PM

Depends on which header you get. PPE Header has an angle extension for 2nd O2 sensor so it can run fine on stock tune. Improved with Visconti tune.

reeves · 04-19-2013, 05:06 PM

Quote:

Originally Posted by Xdragonxb0i

P&L headers.
@dynoyronics. I was hoping I could run my car without a tune for a few months to save up. Right now. My car isn't enjoyable

I got the EL headers from FA20club.. they're pretty similar. You'll definitely need a tune. I wouldn't have even thought about getting the CAI & headers if I couldn't tune it that same week. Like @Dynotronics1 said, you don't want to risK running too lean.. that goes with any mods, but header are much more drastic a change IMO than other bolt-ons, in terms of power gains and potential AFR fluctuations.

To be honest, you may actually lose a bit of torque down low just from the loss of backpressure in the exhaust system by putting on headers.. A tune will definitely help compensate, but I actually don't feel too much of an improvement (if any) below 3K rpms.. which is OK actually, since I gained so much more pull above 3K.

FT-86 SpeedFactory · 04-19-2013, 05:11 PM

Our Firestorm car has been running without a tune for several hundred miles and an open track day with no issues. I sure wasn't easy on the car for the track day either

Mods include AEM intake, HKS EL header, Perrin over-pipe, Invidia catted front-pipe, and T1R cat-back.

I will be interested to see the logs on the stock tune. We have tunes waiting for it, but just have not had the time for it. Also, kind of want to see what kind of numbers we are putting down with the stock flash.

Just my .02, I suppose.

Cheers!
-Yo

reeves · 04-19-2013, 05:14 PM

Quote:

Originally Posted by Gixxersixxerman

I will talk about my brief spin in @Concept 3 LED FRS, but that torque dip is all but gone, just barely noticeable.. And honestly felt like a whole new car, with a whole new sound.. It just pulls so much harder..

Totally agree! In fact, I'm inclined to say the DIP is now "upside down".

mad_sb · 04-19-2013, 05:23 PM

Quote:

Originally Posted by Dynotronics1

Trust me, you need a recalibration with the header. We have seen several cases where the header/cai combo are causing a over lean bog due to over scavenging. Tuning is cheap, why chance it ?

yup, the cam timing for sure needs to be changed around the dip rpm range.. and with that fuel and timing as well, and while your at it you may as well tweak the rest of the rpm range to account for the reduced back pressure and improved flow as well.....

or you could just rock the stock tune and not make more than a few hp with your new header i suppose

04-19-2013, 12:36 AM	#1
Xdragonxb0i Senior Member Join Date: Nov 2011 Drives: ex500r Location: AR Posts: 859 Thanks: 13 Thanked 105 Times in 77 Posts Mentioned: 2 Post(s) Tagged: 0 Thread(s)	question for guys with headers How did your car feel after you installed it with a ecu reset? Mines feel sluggish, i definitely need a tune. Do you guys think you need a tune after your header install? __________________

04-19-2013, 10:36 AM	#7
Opposed Senior Member Join Date: Jun 2012 Drives: 2013 Asphalt FR-S Location: Bloomington, MN Posts: 1,156 Thanks: 499 Thanked 447 Times in 294 Posts Mentioned: 7 Post(s) Tagged: 0 Thread(s)	What kind of header are we talking about? __________________ Asphalt FR-S: EcuTek Visconti STG2 tune, MAPerformance turbo kit, MAPerformance 3" exhaust, Hotchkis springs, Mach-V 17x9 Awesomes. Build thread: http://www.ft86club.com/forums/showthread.php?t=30703

04-19-2013, 11:39 AM	#8
Xdragonxb0i Senior Member Join Date: Nov 2011 Drives: ex500r Location: AR Posts: 859 Thanks: 13 Thanked 105 Times in 77 Posts Mentioned: 2 Post(s) Tagged: 0 Thread(s)	P&L headers. @dynoyronics. I was hoping I could run my car without a tune for a few months to save up. Right now. My car isn't enjoyable __________________

04-19-2013, 12:06 PM	#10
JDKane527 Senior Member Join Date: Jan 2013 Drives: Asphalt Scion FR-S Location: Los Angeles, CA Posts: 499 Thanks: 274 Thanked 215 Times in 136 Posts Mentioned: 10 Post(s) Tagged: 1 Thread(s)	Depends on which header you get. PPE Header has an angle extension for 2nd O2 sensor so it can run fine on stock tune. Improved with Visconti tune. __________________ Asphalt Build

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04-19-2013, 12:48 AM	#3
Gixxersixxerman Senior Member Join Date: Aug 2012 Drives: Toyota GT86, 66 beetle, 11 GSXR 750 Location: Las Vegas, NV. Posts: 1,382 Thanks: 575 Thanked 836 Times in 436 Posts Mentioned: 32 Post(s) Tagged: 0 Thread(s)	I will talk about my brief spin in @Concept 3 LED FRS, but that torque dip is all but gone, just barely noticeable.. And honestly felt like a whole new car, with a whole new sound.. It just pulls so much harder.. But I tagged him so he could give his impression

04-19-2013, 12:49 AM	#4
mashal DADA Join Date: Jun 2012 Drives: 2013 Location: Kanada Posts: 1,500 Thanks: 47 Thanked 388 Times in 249 Posts Mentioned: 10 Post(s) Tagged: 0 Thread(s)	How long has it been since you did your headers? After I installed my CAI , I reset the ECU and it was "sluggish" for about 5-10 minutes .. Haven't had it happen after that

04-19-2013, 08:12 AM	#6
Dynotronics1 Join Date: Nov 2012 Drives: 2013 BRZ Location: New braunfels Posts: 223 Thanks: 2 Thanked 102 Times in 76 Posts Mentioned: 15 Post(s) Tagged: 0 Thread(s)	Trust me, you need a recalibration with the header. We have seen several cases where the header/cai combo are causing a over lean bog due to over scavenging. Tuning is cheap, why chance it ?

04-19-2013, 11:55 AM	#9
Clipdat Proud of BOXER Join Date: Dec 2012 Drives: Subaru Boxer Location: Bay Area Posts: 8,148 Thanks: 7,073 Thanked 6,846 Times in 3,675 Posts Mentioned: 199 Post(s) Tagged: 0 Thread(s)	The pedal delay goes away after ~100 miles.

04-19-2013, 05:11 PM	#12
FT-86 SpeedFactory Join Date: Jul 2012 Drives: 2013 Scion FR-S Location: Des Moines, IA Posts: 7,694 Thanks: 1,298 Thanked 3,578 Times in 1,253 Posts Mentioned: 341 Post(s) Tagged: 5 Thread(s)	Our Firestorm car has been running without a tune for several hundred miles and an open track day with no issues. I sure wasn't easy on the car for the track day either Mods include AEM intake, HKS EL header, Perrin over-pipe, Invidia catted front-pipe, and T1R cat-back. I will be interested to see the logs on the stock tune. We have tunes waiting for it, but just have not had the time for it. Also, kind of want to see what kind of numbers we are putting down with the stock flash. Just my .02, I suppose. Cheers! -Yo

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