The dreaded torque crater - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

iccce34 · 10-21-2013, 01:01 PM

So I was wondering, from those of you who have retuned your motors, what it took to correct the odd torque band and if you noticed a substantial difference. I just hit 3000 miles and was going to do an intake, header back exhaust, and a tune come spring. Is there any talk of a cam package for an N/A setup?

Dimman · 10-21-2013, 01:03 PM

Epic first post.

JDKane527 · 10-21-2013, 01:15 PM

No cams yet but there's some in the works.

Sent from my SCH-I535 using Tapatalk

MAPerformance · 10-21-2013, 01:22 PM

Quote:

Originally Posted by iccce34

So I was wondering, from those of you who have retuned your motors, what it took to correct the odd torque band and if you noticed a substantial difference. I just hit 3000 miles and was going to do an intake, header back exhaust, and a tune come spring. Is there any talk of a cam package for an N/A setup?

Proper header and tune. Done.

CK_Bladesmith · 10-21-2013, 02:55 PM

No need for an intake....the stock intake is excellent. Go with a full exhaust, headers all the way back, and a tune, then you will be good to go.

husker741 · 10-21-2013, 02:59 PM

Quote:

Originally Posted by CK_Bladesmith

No need for an intake....the stock intake is excellent. Go with a full exhaust, headers all the way back, and a tune, then you will be good to go.

If anything, do a filter (I have TRD) and inlet hose. That keeps the stock box, has a better diameter than the stock hose, deletes the sound tube, and gives better sound and a little better performance at half the cost of an intake system.

FR-S Matt · 10-21-2013, 03:10 PM

Header + Tune has consistently eliminated the torque dip along with FI options. It's all over the forums and the dynos are listed.

Jive Turkey · 10-21-2013, 03:19 PM

the first part of your question has been answered over and over.

as for cams, just think about how much work you will have to do...for what gains? you can't just lift heads in this car, you HAVE to pull the motor, and IMO when pulling a subaru motor you should build it up at that point, just cams will be such a waste of money.

jflogerzi · 10-21-2013, 03:19 PM

Quote:

Originally Posted by CK_Bladesmith

No need for an intake....the stock intake is excellent. Go with a full exhaust, headers all the way back, and a tune, then you will be good to go.

Yup what this man said. If you hate the noise generator, just get an inlet tube and and drop in filter

Circuit Motorsports · 10-21-2013, 06:19 PM

With a good tune you can actually greatly reduce the torque dip. To completely eliminate it and get a bump in torque in the mid-range a set of headers is needed.

With headers and a tine, the car can really be transformed with more power throughout the entire rev-range.

You can see what we did here on a stock exhaust car - http://www.ft86club.com/forums/showthread.php?t=47586

Guff · 10-21-2013, 07:15 PM

Torque crater, huh...

So that's how it happened...

SloS14 · 10-21-2013, 08:51 PM

The gay liberal media would have you believe this is what happened.

The torque dip is there by design.

Captain Snooze · 10-21-2013, 09:19 PM

Just do a quad turbo, supercharged with nitrous V8 engine swap.

10-21-2013, 01:01 PM	#1
iccce34 Junior Member Join Date: Aug 2013 Drives: 2013 FR-S and 2014 Jeep Wrangler Location: United States Posts: 8 Thanks: 0 Thanked 0 Times in 0 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	The dreaded torque crater So I was wondering, from those of you who have retuned your motors, what it took to correct the odd torque band and if you noticed a substantial difference. I just hit 3000 miles and was going to do an intake, header back exhaust, and a tune come spring. Is there any talk of a cam package for an N/A setup?

10-21-2013, 01:15 PM	#3
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)	No cams yet but there's some in the works. Sent from my SCH-I535 using Tapatalk __________________ Asphalt Build

10-21-2013, 02:55 PM	#5
CK_Bladesmith Senior Member Join Date: Feb 2013 Drives: Raven FR-S Location: Victoria TX Posts: 335 Thanks: 372 Thanked 95 Times in 75 Posts Mentioned: 7 Post(s) Tagged: 0 Thread(s)	No need for an intake....the stock intake is excellent. Go with a full exhaust, headers all the way back, and a tune, then you will be good to go. __________________ Raven FR-S mods: Unichip, Ground Control street coilovers with camber plates and strut tower brace, SPC Lca's, Drag DR-38 wheels with Dunlop Direzza DZ101s, Perrin CAI and silicone inlet tube, Perrin 3" resonated catback, Perrin high flow catted front pipe, Rev Works UEL header.

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10-21-2013, 03:19 PM	#8
Jive Turkey the tuna, no crust. Join Date: Oct 2012 Drives: 2014 Hachiroku of the year Location: jersey Posts: 2,299 Thanks: 874 Thanked 1,770 Times in 761 Posts Mentioned: 78 Post(s) Tagged: 0 Thread(s)	the first part of your question has been answered over and over. as for cams, just think about how much work you will have to do...for what gains? you can't just lift heads in this car, you HAVE to pull the motor, and IMO when pulling a subaru motor you should build it up at that point, just cams will be such a waste of money.

10-21-2013, 06:19 PM	#10
Circuit Motorsports Senior Member Join Date: Jan 2012 Drives: 2013 Subaru BRZ Location: Orlando, FL Posts: 4,353 Thanks: 294 Thanked 495 Times in 259 Posts Mentioned: 35 Post(s) Tagged: 2 Thread(s)	With a good tune you can actually greatly reduce the torque dip. To completely eliminate it and get a bump in torque in the mid-range a set of headers is needed. With headers and a tine, the car can really be transformed with more power throughout the entire rev-range. You can see what we did here on a stock exhaust car - http://www.ft86club.com/forums/showthread.php?t=47586

10-21-2013, 08:51 PM	#12
SloS14 Senior Member Join Date: Apr 2013 Drives: 2013 FR-S whiteout Location: United States Posts: 726 Thanks: 381 Thanked 652 Times in 256 Posts Mentioned: 3 Post(s) Tagged: 0 Thread(s)	The gay liberal media would have you believe this is what happened. The torque dip is there by design.

10-21-2013, 09:19 PM	#13
Captain Snooze Because compromise ® Join Date: Jan 2012 Drives: Red Herring Location: australia Posts: 7,818 Thanks: 4,050 Thanked 9,551 Times in 4,195 Posts Mentioned: 60 Post(s) Tagged: 0 Thread(s)	Just do a quad turbo, supercharged with nitrous V8 engine swap.

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