ways to up the engine output without going FI - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

stlgrym3 · 03-06-2018, 04:54 AM

i'm looking for modest power gain, like about <10 hp and lb-ft gain. so far i have Greddy SP catback exhaust and TRD air filter. what else i can get to get more power out of our car without going FI?

Boomerang · 03-06-2018, 05:02 AM

Quote:

Originally Posted by stlgrym3

i'm looking for modest power gain, like about <10 hp and lb-ft gain. so far i have Greddy SP catback exhaust and TRD air filter. what else i can get to get more power out of our car without going FI?

EL or UEL exhaust manifold and tune

E85 good for even more HP and torque

Lots of info on this site

churchx · 03-06-2018, 05:13 AM

Also lowering weight. For just <10hp to your already upgraded airfilter i'd add whichever ecu tuning, OFT or Ecutek. And maybe E85.
If want more, then go for aftermarket header, cat deletes and such, +tune for them of course.

guybo · 03-06-2018, 05:30 AM

http://www.ft86club.com/forums/showthread.php?t=81493

read this. All of it

Tcoat · 03-06-2018, 09:25 AM

Tune. Even at stock setup a tune is your best bang for the buck. Also gives you the ability to change as you add parts. The stock tune is intended to meet emission and mileage requirements. This can only happen by sacrificing performance.

bfrank1972 · 03-06-2018, 09:43 AM

As others have said, main ingredients are a proven/quality long tube header + good tune. After that I'd say manifold spacers (Crawford blocks, need to tune for these), and then maybe 4.56 final drive. If E85 is readily available, add that to the mix. Everything else (intake, OP, FP, exhaust) will provide marginal gains (but dramatically increased volumes).

churchx · 03-06-2018, 10:17 AM

imho many have overlooked "for modest power gain, like about <10 hp and lb-ft gain" bit. At no point there was question of max NA gains with bolt-on mods. And seeing modest wish i somewhat guess that non-mentioned budget might be low.

Tcoat · 03-06-2018, 10:33 AM

Quote:

Originally Posted by churchx

imho many have overlooked "for modest power gain, like about <10 hp and lb-ft gain" bit. At no point there was question of max NA gains with bolt-on mods. And seeing modest wish i somewhat guess that non-mentioned budget might be low.

I didn't miss it. Start with a tune and build as budget and desire increases. So many want to start bolting parts onto the car in the belief they are gaining power but then leave the tune right out of the equation. You can have all the air you want flowing in and back out but if running a stock tune you can not take advantage of any of it since the car can only adjust within the design parameters.

Spuds · 03-06-2018, 12:11 PM

Also, if you start with an unlocked ots tune, I can assure you it will give you hours of entertainment working on getting it running just the way you like it, with no further monetary input.

bfrank1972 · 03-06-2018, 12:38 PM

Quote:

Originally Posted by Tcoat

I didn't miss it. Start with a tune and build as budget and desire increases. So many want to start bolting parts onto the car in the belief they are gaining power but then leave the tune right out of the equation. You can have all the air you want flowing in and back out but if running a stock tune you can not take advantage of any of it since the car can only adjust within the design parameters.

True - but caveat - if you're eventually going to go the 'ideal' route (which I haven't done yet lol), you're going to want custom tunes instead of off-the-shelf tunes. In that case, you're going to pay every time you make a significant change - might be better off doing the header+tune together first.

Also keep in mind, what you spend can vary a lot. Buy used if on a budget:
Good quality used header: $450
OFT: $400

That right there, using canned tunes, will get you pretty darned far.

Tcoat · 03-06-2018, 12:51 PM

Quote:

Originally Posted by bfrank1972

True - but caveat - if you're eventually going to go the 'ideal' route (which I haven't done yet lol), you're going to want custom tunes instead of off-the-shelf tunes. In that case, you're going to pay every time you make a significant change - might be better off doing the header+tune together first.

Also keep in mind, what you spend can vary a lot. Buy used if on a budget:
Good quality used header: $450
OFT: $400

That right there, using canned tunes, will get you pretty darned far.

There are hundreds of possible variations on the theme but if only looking for a few HP bump a good jumping off point is a canned tune. If buying one of the more advanced tuning options then they can build custom ones right on it. Anybody asking this basic a question is probably not ready to go into custom tunes just yet anyway.

finch1750 · 03-06-2018, 01:03 PM

Stickers

Grady · 03-06-2018, 01:25 PM

Oh ya those vents you put on your front fenders. Those are good for about 3hp each.

But seriously start with a tune. That will be the building block for any mods later on so it will not be a waste of money.

nikitopo · 03-06-2018, 01:51 PM

As others said, start with a canned tune.

03-06-2018, 04:54 AM	#1
stlgrym3 Senior Member Join Date: Nov 2011 Drives: 2017 Subaru BRZ Limited Location: socal Posts: 562 Thanks: 72 Thanked 51 Times in 44 Posts Mentioned: 3 Post(s) Tagged: 0 Thread(s)	ways to up the engine output without going FI i'm looking for modest power gain, like about <10 hp and lb-ft gain. so far i have Greddy SP catback exhaust and TRD air filter. what else i can get to get more power out of our car without going FI?

03-06-2018, 09:25 AM	#5
Tcoat Senior Member Join Date: Jul 2014 Drives: 2020 Hakone Location: London, Ont Posts: 69,841 Thanks: 61,656 Thanked 108,295 Times in 46,456 Posts Mentioned: 2499 Post(s) Tagged: 50 Thread(s)	Tune. Even at stock setup a tune is your best bang for the buck. Also gives you the ability to change as you add parts. The stock tune is intended to meet emission and mileage requirements. This can only happen by sacrificing performance. __________________ Racecar spelled backwards is Racecar, because Racecar.

03-06-2018, 01:03 PM	#12
finch1750 Undisputed El Presidente Join Date: Jun 2012 Drives: Zenki 37J ZN6 Location: Stockton, CA Posts: 11,593 Thanks: 9,403 Thanked 9,411 Times in 5,270 Posts Mentioned: 374 Post(s) Tagged: 33 Thread(s)	Stickers __________________ "Just like how a strut bar somehow enables you to corner 20MPH faster around a cloverleaf on-ramp, when the reality is, you can do it already but you just don't have to balls to do it." - CSG David

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03-06-2018, 05:13 AM	#3
churchx Senior Member Join Date: Mar 2015 Drives: 2014 GT86 Location: Latvia, Riga Posts: 4,334 Thanks: 698 Thanked 2,086 Times in 1,436 Posts Mentioned: 53 Post(s) Tagged: 1 Thread(s)	Also lowering weight. For just <10hp to your already upgraded airfilter i'd add whichever ecu tuning, OFT or Ecutek. And maybe E85. If want more, then go for aftermarket header, cat deletes and such, +tune for them of course.

03-06-2018, 05:30 AM	#4
guybo Huge E85 fan! Join Date: May 2016 Drives: 2016 Scion FRS Location: Tampa, FL, USA Posts: 1,850 Thanks: 539 Thanked 1,010 Times in 605 Posts Mentioned: 32 Post(s) Tagged: 0 Thread(s)	http://www.ft86club.com/forums/showthread.php?t=81493 read this. All of it

03-06-2018, 09:43 AM	#6
bfrank1972 Senior Member Join Date: Jul 2013 Drives: 2013 FR-S Argento Location: Westport,CT Posts: 1,855 Thanks: 517 Thanked 1,041 Times in 616 Posts Mentioned: 7 Post(s) Tagged: 1 Thread(s)	As others have said, main ingredients are a proven/quality long tube header + good tune. After that I'd say manifold spacers (Crawford blocks, need to tune for these), and then maybe 4.56 final drive. If E85 is readily available, add that to the mix. Everything else (intake, OP, FP, exhaust) will provide marginal gains (but dramatically increased volumes).

03-06-2018, 10:17 AM	#7
churchx Senior Member Join Date: Mar 2015 Drives: 2014 GT86 Location: Latvia, Riga Posts: 4,334 Thanks: 698 Thanked 2,086 Times in 1,436 Posts Mentioned: 53 Post(s) Tagged: 1 Thread(s)	imho many have overlooked "for modest power gain, like about <10 hp and lb-ft gain" bit. At no point there was question of max NA gains with bolt-on mods. And seeing modest wish i somewhat guess that non-mentioned budget might be low.

03-06-2018, 12:11 PM	#9
Spuds The Dictater Join Date: Apr 2017 Drives: '13 Red Scion FRS Location: MD, USA Posts: 9,646 Thanks: 26,684 Thanked 12,705 Times in 6,293 Posts Mentioned: 88 Post(s) Tagged: 0 Thread(s)	Also, if you start with an unlocked ots tune, I can assure you it will give you hours of entertainment working on getting it running just the way you like it, with no further monetary input.

03-06-2018, 01:51 PM	#14
nikitopo Senior Member Join Date: Mar 2014 Drives: '15 BRZ RA Location: Greece Posts: 3,787 Thanks: 2,417 Thanked 1,947 Times in 1,263 Posts Mentioned: 29 Post(s) Tagged: 0 Thread(s)	As others said, start with a canned tune.

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