NA Peak torque - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

PowderfaceTr. · 04-22-2013, 10:26 PM

What length of intake runners are the NA NiTROUS guys running on Subarus? What rpm are they tuning max torque.

Sportsguy83 · 04-23-2013, 08:02 AM

Quote:

Originally Posted by PowderfaceTr.

What length of intake runners are the NA NiTROUS guys running on Subarus? What rpm are they tuning max torque.

For one, there is very few people running nitrous in the forum. Second, I don't believe there is any aftermarket intake manifolds to run custom intake runner lenghts.

OrbitalEllipses · 04-23-2013, 10:23 AM

Quote:

Originally Posted by Sportsguy83

For one, there is very few people running nitrous in the forum. Second, I don't believe there is any aftermarket intake manifolds to run custom intake runner lenghts.

I'm running a modified 787B manifold with variable length intake runners.

2forme · 04-23-2013, 10:31 AM

Quote:

Originally Posted by OrbitalEllipses

I'm running a modified 787B manifold with variable length intake runners.

Dude, you should upgrade. I have the 797X. Not only does the length vary, but width as well. I hear the next one will actually expand and contract the head passages too!

dabocx · 04-23-2013, 10:36 AM

Maybe a year down the line someone can answer this question, but as of now I have yet to see aftermarket IMs. Going to be a year and still waiting on cams and valve train parts.

Frs300 · 04-23-2013, 11:08 AM

Quote:

Originally Posted by dabocx

Maybe a year down the line someone can answer this question, but as of now I have yet to see aftermarket IMs. Going to be a year and still waiting on cams and valve train parts.

Ferrea has valve train parts out now. You can get them anywhere from $900-1400 depending on who you purchase them through.

PowderfaceTr. · 04-24-2013, 01:35 AM

aftermarket? just fab some, its not hard to calculate rpms you want the motor to develop power and just tune the runner length to 0.8 the speed of sound. Off the shelf tuning forums this place is, eh?

charged86 · 04-24-2013, 10:41 AM

I have the obx intake manifold. With inconnel runners

04-22-2013, 10:26 PM	#1
PowderfaceTr. Senior Member Join Date: Sep 2012 Drives: stock Location: ALBERTA CANADA Posts: 117 Thanks: 31 Thanked 81 Times in 7 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	NA Peak torque What length of intake runners are the NA NiTROUS guys running on Subarus? What rpm are they tuning max torque.

04-24-2013, 10:41 AM	#8
charged86 Senior Member Join Date: Mar 2013 Drives: whiteout gt86 2015 IS350fsport Location: northern kentucky. cincy Posts: 1,931 Thanks: 2,154 Thanked 697 Times in 437 Posts Mentioned: 42 Post(s) Tagged: 0 Thread(s)	I have the obx intake manifold. With inconnel runners __________________ INSTAGRAM @Rcf_700 www.youtube.com/boostindub

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04-23-2013, 10:36 AM	#5
dabocx Senior Member Join Date: Jan 2012 Drives: Scion FRS Location: United States Posts: 1,267 Thanks: 564 Thanked 261 Times in 191 Posts Mentioned: 9 Post(s) Tagged: 0 Thread(s)	Maybe a year down the line someone can answer this question, but as of now I have yet to see aftermarket IMs. Going to be a year and still waiting on cams and valve train parts.

04-24-2013, 01:35 AM	#7
PowderfaceTr. Senior Member Join Date: Sep 2012 Drives: stock Location: ALBERTA CANADA Posts: 117 Thanks: 31 Thanked 81 Times in 7 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	aftermarket? just fab some, its not hard to calculate rpms you want the motor to develop power and just tune the runner length to 0.8 the speed of sound. Off the shelf tuning forums this place is, eh?

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