Cheapest way to eliminate the torque dip - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

allawd · 04-22-2013, 06:43 PM

I've been searching through the various threads on exhausts and have been pretty unimpressed with the results. To me, the gains are like those seen on motorcycles. So, is the stock stuff just that good?

What would be the most efficient/cheapest way to get rid of some of the torque dip? I am thinking Nameless front pipe with helmholtz resonators and high-flow cat + tune seems to be the best bang for buck. Maybe headers too...what do you think?

Don't really want more sound out of the car, just smoother power.

Yeah, I don't even have the car yet, but need something to occupy time.

pheoxs · 04-22-2013, 06:49 PM

Header seems to be the biggest gains and fix the torque dip based on the Nameless and P&L dynos

xjohnx · 04-22-2013, 06:56 PM

e85.

Opposed · 04-22-2013, 06:56 PM

Not sure if its the cheapest, but the right headers and a tune seem to do the trick. Or if you have can get it, an E85 tune alone does pretty well with the dip.

allawd · 04-22-2013, 06:59 PM

No E85 where I am, but seems like headers beat front pipe by a good bit then?

After owning a WRX for many years and doing mods on the cheap (that end up more expensive), I think paying a few hundred more up front isn't going to be as hard to justify.

Any of the dynos showing headers use stock exhaust?

DJCarbine · 04-22-2013, 07:24 PM

I've complained about borla quality because I got the dreaded warped flange syndrome, but honestly with the visconti tune and the Borla UEL, I cannot feel the torque dip any longer.

Gary in NJ · 04-22-2013, 08:13 PM

Header + full exhaust + tune.

frslee · 04-22-2013, 08:46 PM

Start with a tune.

mad_sb · 04-22-2013, 09:12 PM

honestly, if you want to get rid of the dip for realz.... equal length de catted header, high flow catted front / over pipe combo, axle back and a good tune.

I would not spend the money on multiple tunes and a good tune for an equal length header would not be the same tune as for stock manifold so if you want to do it in stages... axle back and front / over pipe, then header, then tune. Otherwise you will be paying for more than one tune.

Pandle · 04-22-2013, 09:22 PM

Quote:

Originally Posted by mad_sb

honestly, if you want to get rid of the dip for realz.... equal length de catted header, high flow catted front / over pipe combo, axle back and a good tune.

I would not spend the money on multiple tunes and a good tune for an equal length header would not be the same tune as for stock manifold so if you want to do it in stages... axle back and front / over pipe, then header, then tune. Otherwise you will be paying for more than one tune.

Not sure how it works with other vendors but if you buy a tune from visconti you will not need to buy multiple tunes. Just buy the base tune, add parts, record data and send him the logs. He'll update for free. Just saying...

allawd · 04-23-2013, 01:21 AM

Quote:

Originally Posted by frslee

Start with a tune.

Since you are in MD, do you know if Jermaine at TurboXS is doing NA BRZ tuning? He tuned by WRX. I prefer to get a real dyno tune since there's several shops in my area that can do it.

Quote:

Originally Posted by mad_sb

honestly, if you want to get rid of the dip for realz.... equal length de catted header, high flow catted front / over pipe combo, axle back and a good tune.

I would not spend the money on multiple tunes and a good tune for an equal length header would not be the same tune as for stock manifold so if you want to do it in stages... axle back and front / over pipe, then header, then tune. Otherwise you will be paying for more than one tune.

This makes sense, I just don't want the extra noise, so planning on keeping the stock cat-back even at the expense of weight/power.

I've had enough years of full exhaust on my WRX to know what it will sound like on a daily commute.

ngabdala · 04-23-2013, 08:58 AM

Cheapest way is to go turbo or supercharger bro. You're going to spend alot of money to *reduce* *some* of the torque dip. Save it for forced induction. I am going the supercharger route.

FT-86 SpeedFactory · 04-23-2013, 09:15 AM

Borla UEL and Tune.

xjohnx · 04-23-2013, 09:17 AM

Quote:

Originally Posted by allawd

No E85 where I am, but seems like headers beat front pipe by a good bit then?

Where in VA are you?

04-22-2013, 06:43 PM	#1
allawd Member Join Date: Apr 2013 Drives: WRX Location: VA Posts: 22 Thanks: 4 Thanked 3 Times in 3 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Cheapest way to eliminate the torque dip I've been searching through the various threads on exhausts and have been pretty unimpressed with the results. To me, the gains are like those seen on motorcycles. So, is the stock stuff just that good? What would be the most efficient/cheapest way to get rid of some of the torque dip? I am thinking Nameless front pipe with helmholtz resonators and high-flow cat + tune seems to be the best bang for buck. Maybe headers too...what do you think? Don't really want more sound out of the car, just smoother power. Yeah, I don't even have the car yet, but need something to occupy time.

04-22-2013, 06:56 PM	#4
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)	Not sure if its the cheapest, but the right headers and a tune seem to do the trick. Or if you have can get it, an E85 tune alone does pretty well with the dip. __________________ 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

04-22-2013, 06:59 PM	#5
allawd Member Join Date: Apr 2013 Drives: WRX Location: VA Posts: 22 Thanks: 4 Thanked 3 Times in 3 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	No E85 where I am, but seems like headers beat front pipe by a good bit then? After owning a WRX for many years and doing mods on the cheap (that end up more expensive), I think paying a few hundred more up front isn't going to be as hard to justify. Any of the dynos showing headers use stock exhaust? Last edited by allawd; 04-22-2013 at 07:13 PM.

04-22-2013, 09:12 PM	#9
mad_sb Senior Member Join Date: Jan 2013 Drives: 2013 Asphalt FR-S Location: Orange County Posts: 1,639 Thanks: 632 Thanked 981 Times in 537 Posts Mentioned: 100 Post(s) Tagged: 0 Thread(s)	honestly, if you want to get rid of the dip for realz.... equal length de catted header, high flow catted front / over pipe combo, axle back and a good tune. I would not spend the money on multiple tunes and a good tune for an equal length header would not be the same tune as for stock manifold so if you want to do it in stages... axle back and front / over pipe, then header, then tune. Otherwise you will be paying for more than one tune. __________________ ~Namaste~ 2013 Asphalt FRS

04-23-2013, 08:58 AM	#12
ngabdala Vortech Supercharged Join Date: Apr 2012 Drives: WRB BRZ 6MT LTD Location: Massachusetts Posts: 1,447 Thanks: 1,897 Thanked 467 Times in 283 Posts Mentioned: 13 Post(s) Tagged: 1 Thread(s)	Cheapest way is to go turbo or supercharger bro. You're going to spend alot of money to reduce some of the torque dip. Save it for forced induction. I am going the supercharger route. __________________ Powered by Vortech, ECS Tuning, and JDL Auto Design

04-22-2013, 06:49 PM	#2
pheoxs Hold my beer n watch this Join Date: Nov 2012 Drives: '14 Fiesta ST / '91 240sx Location: Calgary, Alberta Posts: 782 Thanks: 214 Thanked 301 Times in 177 Posts Mentioned: 8 Post(s) Tagged: 0 Thread(s)	Header seems to be the biggest gains and fix the torque dip based on the Nameless and P&L dynos

04-22-2013, 06:56 PM	#3
xjohnx Grip>Slip Join Date: Jun 2012 Drives: 13 SWP BRZ Ltd - Innovate Powered! Location: RVA Posts: 3,563 Thanks: 656 Thanked 1,716 Times in 1,031 Posts Mentioned: 45 Post(s) Tagged: 3 Thread(s)	e85.

04-22-2013, 07:24 PM	#6
DJCarbine Thupercharged Join Date: Mar 2013 Drives: 2013 FR-S Location: La Grange Park, IL. Posts: 1,501 Thanks: 116 Thanked 751 Times in 439 Posts Mentioned: 23 Post(s) Tagged: 0 Thread(s)	I've complained about borla quality because I got the dreaded warped flange syndrome, but honestly with the visconti tune and the Borla UEL, I cannot feel the torque dip any longer.

04-22-2013, 08:13 PM	#7
Gary in NJ Senior Member Join Date: Feb 2013 Drives: WR Blue BRZ, 240Z Location: Amongst the twisty roads Posts: 587 Thanks: 21 Thanked 412 Times in 206 Posts Mentioned: 6 Post(s) Tagged: 0 Thread(s)	Header + full exhaust + tune.

04-22-2013, 08:46 PM	#8
frslee Just drive it Join Date: Mar 2013 Drives: 13' FR-S Location: Maryland Posts: 1,122 Thanks: 97 Thanked 321 Times in 218 Posts Mentioned: 10 Post(s) Tagged: 3 Thread(s)	Start with a tune.

04-23-2013, 09:15 AM	#13
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)	Borla UEL and Tune.

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