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Discussion Starter #1
Hello,

looks like a great forum.

I don't have any issues with the car i have; bought a 12 plate auto a few months ago - standard and happy to keep it that way, more or less. I am considering upgrading to a k&n cold air intake and not much else - or might go for a performance filter but not sure which one's worth bothering with - apparently some are oil coated or something? happy to consider any advice or things i should know. i have done a bit of online searching and seems there's not a massive difference in terms of hp, but it might sound a bit better.

anyway, thanks for reading

Joe
 

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Hello Joe and welcome :)
I guess the first things to ask are; how come you're just fancying having a look at the intake system and not much else? And what goals do you have for the car?

The small bump in power that a cold air intake might provide, especially the 6.6HP increase claimed by the K&N 69-8619TS Kit for £441.59, is pretty hard to swallow! That's just bonkers, for what is pretty much a noise generator ;)

There was some really good research done on the stock intake over on the ft86club. The conclusion being it's excellent out of the box! I don't have the link to hand but I'll try dig it out.

As for replacing the filter with an aftermarket one. The debate over oil based filters rages on... the argument being that oil from the filter can build up on the MAP sensor, causing false readings. I understand the logic but I currently have a K&N 33-2300 installed and don't have an issue.
Tuning Developments also include one in their very popular NA Tuning Package.
If you're not sure, there are plenty of non oil based filters out there; HKS, Blitz, Cosworth etc...

Going back to the start... If you are looking for more performance or a better feel to the car and have the budget for the K&N kit. Instead, for ~£550 you could look in to having the car remapped (including the cost of am Ecutek License). This opens up a whole world of features and gives you a lot more scope for the future :)

Edit
This wasn't the article I was referring too but skimming though it has some great info.
Looks like both K&N items deliver pretty much the same amount of power without a tune.
https://dsportmag.com/the-tech/scion-fr-sbrz-intake-test-pt-1-testing-factory-programed-ecu/6/
https://dsportmag.com/the-tech/scion-fr-sbrz-intake-test-pt-1-testing-factory-programed-ecu/13/

Double Edit
Here we go!
https://www.ft86club.com/forums/showthread.php?t=56358
TL;DR:The stock intake is well designed, and performs as such. Even though the room for improvement appears to be small, it does exist and has been proven to. The stock snorkel provides a pressure gain and is not dependent on vehicle speed.
 

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Hello Joe, and welcome.

Essentially, what Kaviar said. Good luck with your choices.
 

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Hi Joe,
Welcome!
The car comes very well from the factory and modding is a slippery slope. If you don't aim to do a lot , just don't start the journey and enjoy it stock.
Having said what I have had to, there is nothing cheap and cheerful that you might want to do to get Performance gains. Manifold change and tune is one mod to get more performance and get rid of torque dip. IMHO, you don't feel the torque dip in an auto as the problem appears when you refuse to keep the car above 4K RPM and want to press on in a manual. When you mash the throttle, the gearbox does the change for you , especially in sport mode.



Sent from my SM-G970F using Tapatalk
 

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Discussion Starter #6
Hello Joe and welcome :)
I guess the first things to ask are; how come you're just fancying having a look at the intake system and not much else? And what goals do you have for the car?

The small bump in power that a cold air intake might provide, especially the 6.6HP increase claimed by the K&N 69-8619TS Kit for £441.59, is pretty hard to swallow! That's just bonkers, for what is pretty much a noise generator ;)

There was some really good research done on the stock intake over on the ft86club. The conclusion being it's excellent out of the box! I don't have the link to hand but I'll try dig it out.

As for replacing the filter with an aftermarket one. The debate over oil based filters rages on... the argument being that oil from the filter can build up on the MAP sensor, causing false readings. I understand the logic but I currently have a K&N 33-2300 installed and don't have an issue.
Tuning Developments also include one in their very popular NA Tuning Package.
If you're not sure, there are plenty of non oil based filters out there; HKS, Blitz, Cosworth etc...

Going back to the start... If you are looking for more performance or a better feel to the car and have the budget for the K&N kit. Instead, for ~£550 you could look in to having the car remapped (including the cost of am Ecutek License). This opens up a whole world of features and gives you a lot more scope for the future :)

Edit
This wasn't the article I was referring too but skimming though it has some great info.
Looks like both K&N items deliver pretty much the same amount of power without a tune.
Scion FR-S/BRZ Intake Test: Pt 1 | Testing with the Factory Programed ECU
Scion FR-S/BRZ Intake Test: Pt 1 | Testing with the Factory Programed ECU

Double Edit
Here we go!
Measuring Restriction in the Stock Intake System - A GrimmSpeed Report - Toyota GR86, 86, FR-S and Subaru BRZ Forum - FT86CLUB
Hi Kaviar

thanks for your very useful comments and points. The K & N induction kit. Yes, they are expensive at the RRP - but managed to buy a couple for a lot less than that so was thinking of either reselling both, or selling one and installing the other, just for the hell of it. In any case, will certainly look at the drop in filters as well; again, probably opt for K & N largely because of their reputation, but also considering HKS and Cosworth; not sure if there's anything between them in terms of pros/cons. Thanks also for the links; have scanned the one that looks at stock intake restrictions, which seems to suggest it's fine, although the snorkel might produce a kind of bottleneck or something. as you can guess from my language, i'm not a mechanic but i can do some relatively basic things.

I don't really have a lot of plans for the car - i quite like it as it stands and i was quite keen to keep it stock and unadulterated for a while, but the world of mods/enhancements can be insidious. presently thinking about a set of bola wheels, and a cobra decat exhaust. both these are second hand, but depends if i can get them cheap enough to bother with.

As for remapping, i'll think on it. The car i had before this, a 2.7 audi, had a remap and it was pretty good - i think it was called a 50-50 econ/performance. that did make a difference to both consumption and responsiveness etc. I am conscious that mapping can be a bit dicey for some cars more than others - but will definitely look further into it, perhaps having a chat with some local specialists as a starting point.

anyway, again, thanks so much for your thoughts and for the welcome. Apologies for not replying sooner.
 

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Discussion Starter #8
Hi Joe,
Welcome!
The car comes very well from the factory and modding is a slippery slope. If you don't aim to do a lot , just don't start the journey and enjoy it stock.
Having said what I have had to, there is nothing cheap and cheerful that you might want to do to get Performance gains. Manifold change and tune is one mod to get more performance and get rid of torque dip. IMHO, you don't feel the torque dip in an auto as the problem appears when you refuse to keep the car above 4K RPM and want to press on in a manual. When you mash the throttle, the gearbox does the change for you , especially in sport mode.



Sent from my SM-G970F using Tapatalk
Hi BRZ

- thanks for that. yes, i know what you mean; if you hit the pedal, it'll either kickdown or just climb revs and then change - and it feels okay, although there's not torque surge which you get with turbos etc.

for everyday driving, this car is more than adequate in terms of speed/performance/etc; half the time, you're stuck in traffic, and when you're not, traffic cameras and fear of points holds any temptation at bay. that's the rational side of me. the irrational side of me says, yeah... maybe an extra 30hp, and a clearer sense of feeling any increased torque would be nice to have, even though it might be somewhat impractical on a day to day basis. As it's my daily driver, i'm not going to even consider it for track days or anything like that (the last time i did a track day, was over a decade ago, probably).

fwiw, I know people who've spent a fortune on their cars, enhancing them in all the ways that mean something to them. personally, and as something of a 'tourist', i still find all that very valuable (not economically so much) aspects of motoring culture... i do find car culture in general fascinating, and the weird but not surprising thing is, a lot of the enhancement/modification that's very visible isn't appreciated more widely as valuable cultural or even creative activity, but often the opposite. that's not meant to trigger any responses, btw - merely an observation.

anyway, sorry for going on

thanks again

Joe
 

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Discussion Starter #11
quick follow up question -

am thinking of trying a drop in filter... any one have any particular insights? from what i can tell, seems like a bit of a coin toss between cosworth, k and n, hks, greddy and maybe a couple of other brands. if they're all more or less the same, am inclined to go with cosworth as it seems to be the cheapest. figure i might as well hold off on messing around with the cold air induction kit

comments/advice appreciated
 
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