7 Cheap Engine Mods your 86/BRZ NEEDS in 2021!

[@HANCinemaa]

This is great, lots of things I was planning confirmed. Also really glad you mentioned the lightweight flywheel, especially with what you said about heel toe. One of my pet peeves when rev-matching is how slow it feels to heel toe.

[@mrvector257]

One thing to keep in mind with a lightweight flywheel is you're losing that rotational mass and can negatively affect your gas mileage. The extra mass with a stock flywheel helps keep the engine rotating while at highway speeds so the engine doesn't need to work as hard to fight against air resistance.

[@AngusOutram]

Lighter flywheel won’t affect gas mileage in any noticeable way, and the logic would be the opposite. The only thing it will affect is taking off from the lights how it could be easier to stall. In regards to gas mileage, it would help improve it due to the lower rotational mass.

[@mrvector257]

@@AngusOutram A lighter flywheel will make it easier to take off from a light, yes, but a heavier (stock) flywheel will, in fact, get you better gas mileage overall while at cruising speeds, like on the highway or cruising at the speed limit. The greater rotational inertia will stabilize RPMs (dampen, in a sense) when cruising and minimize the throttle adjustment needed to keep a stable speed. Like a spinning top. The more mass the top has, the longer it can keep spinning. Assuming equal conditions like size (same car), friction between the contact surfaces (tires), coefficient of drag, etc. In the city, a lightened flywheel may get you better MPGs during stop and go conditions, but it will certainly drop your MPGs on the highway. Anything in motion will stay in motion unless acted upon by an external force. Air resistance will slow the car down quicker because there is less rotational mass acting against the coefficient of drag, therefore more throttle input would be needed more often, thus more gas, to maintain the same velocity. If you were only doing stop and go driving, like in a big city commute, then yeah you would probably notice better MPGs. But, manufacturers engineer their vehicles with heavier flywheels for a reason. They put heavier flywheels (and torque converters for that matter) on from the factory to gain the extra highway gas mileage ratings. It depends on where you're driving, but most vehicles spend more of their time at cruising speeds, which is where the more massive (higher inertia) flywheels make the difference. My point is that a lower rotational mass only helps in certain conditions, but not most of the time. There are multiple factors to consider. Now, with that entire novel said, it does nothing to take into account the fun factor of a lightened flywheel. With the fun factor taken into account, I'm all about a lightened flywheel :). So, I do agree with you that it's a worthwhile mod.

[@eledgy]

@@mrvector257 Valid, but the effect of lesser inertia vs greater inertia during steady state RPM may well come to a 1 for 1 cancellation of perceived practical advantages/disadvantages. The engine’s reciprocating parts are always accelerating/decelerating, and a reduced inertia might aid in the combustion phase while equally increasing pumping loss and carrying less energy to overcome vehicle friction in the compression phase (likewise, the vehicle’s forward inertia can itself accelerate the drivetrain more easily with less rotational inertia). Fluid harmonic dampers theoretically address most of the issues that arise from that reduced rotational inertia, e.g., lighter flywheels and built engines with lighter components, without the added weight and inertia.

[@qpinfinitevoidqp2613]

where can i get a good lightweight flywheel for the brz?

[@sailingnika2396]

you make the point of the higher mass keeps it spinning, but forgot to mention the extra energy required to spin a 18kg flywheel vs a 4KG particularly where that mass sits which is even more critical (radius of gyration) so I can assure you it does not use more gas miles at constant velocity bar it's an aerodynamic profile which does but so small not measurable, people talk about the benefits being faster reving engine, and yes it is and sounds great done a few on different cars, have not seen a comment on the main benefit and that is 1st and 2nd gear acceleration. if the overall gear ratio of the car is 19:1 in first, then the car weight, at, say, 1400KG, only weighs 73kg to the engine (hence why first is quicker than 5th in acceleration. If the rotational mass of the engine is 50kg then the engine is having to move 123kg. 2nd is probably 10 to 1 so 140kg + 50kg (numbers all example not 86 ones) so in first if you take 12KG out the flywheel (but more importantly from the outer edges you reduce the mass needing accelerating to 111kg it makes 1st gear 10% quicker! that is the real benefit of a lightened flywheel! The difference in first gear can be astounding in some cars in 0-60 improvements.

[@AutoMotiv8ed]

Nice to see more Brz content 💪

[@AngusOutram]

Thanks man! When do I get to see more of yours?!

[@AutoMotiv8ed]

@@AngusOutram hopefully soon man as soon as these lockdowns are over 🙁

[@DaOne09]

Dude I love your explaining, thanks so much. Happy I found you!

[@jamesstandow1281]

Love your videos brother watching these over in California

[@AngusOutram]

Thank-You James! got the car re-tuned recently so i'm hoping to get some driving video's soon!

[@jamesstandow1281]

@@AngusOutram do it bro! I just subscribed I have a nice build going on my 2013 automatic BRZ and I can’t decide if I should turbo or supercharge. I have a lot of money already in the car price isn’t much of an issue, but your videos have helped my find out what I really need before hand based off someone who already did what I’m looking to do. - thinking of throwing a Greddy turbo kit on with the Greddy super street titan exhaust I already have on the car would just have to remove my InJen intake sadly. Already have suspension done with Cusco and also a Greddy body kit just don’t know if I should turbo or not. Let me know what your honest opinion is and any tips or stuff you can tell me, you don’t know how much it would mean to me 🙏 thanks again for the reply

[@AngusOutram]

Thanks for subbing! Oh man there's so much to learn before turbo'ing! it's definitely been a journey (2x blown engines) but I love the car and the high compression engine with the turbo is insane to drive. The greddy kit is awesome, If I was in the states I would have most likely gone with the JDL kit as it allows for upgrading the turbo if you plan to go built motor in the future. Both are good though. As for if you should turbo it; In my opinion It really depends on the support where you live. If I didn't have E85 easily available I might have not have turbo'd it (lower quality fuel means you can't turn up the boost as much because the engine is fairly high compression from factory) If you have any other questions you can always message me on my instagram @angusoutram. Always happy to help!

[@maxxjonesyy]

Nice video mate, currently NA running headers and an e85 tune. Was tossing up turbo a while ago but not sure I want to gamble my luck on probability... Being that the car is going to be used for skid pan and drift events! (fellow 86 youtuber)

[@AngusOutram]

Thanks Max! I would definitely recommend staying N/A or if you really need the extra power going for a centrifugal supercharger, these engine's hate high torque situations (boost low down + clutch kicks I would think would accentuate the issue). Some people seem to get super lucky with turbo'ing the stock motor but it wouldn't be my personal recommendation unless you had money to put down on replacement engines or a built motor if anything happened. I'll check out your channel!

[@saulespino3037]

I have a BRZ with EL catless headers and front pipe with an e85 tune and don't know how much more power I gained, do you know approximately how much hp/tq you gained with your modifications?

[@J_S209]

An Australian saying Zeeee not Zed … it’s like not having beetroot on a hamburger. 🤣

[@climbbike1234]

Wow. Great video.

[@FRS_Faithful_Righteous_Servant]

Where can I find the STI break calibers u have on ur BRZ?

[@bridget_clinch]

I've got my 2018 BRZ TS arriving in a few days, ordered a Perrin CAI, tossing up between HKS and JDL catted headers to stay legal next, and have the rest of the exhaust planned out, thinking maybe an openflash tablet too. I want to get rid of that torque dip and get the rumble back, it's going to be strange coming from a WRX.

[@cct3053]

What tires and wheels Specs? Looks perfect!

[@AngusOutram]

17x9.5 +35 thank you!

[@s7robe297]

Nobody in CA uses catted headers lol. At least in SD

[@bgd_brz]

Dont even think they make ca carb headers pretty sure all say fed only

[@static7985]

Yes. if its illegal to modify the emission system at all, why bother modifying it to still have a cat? if youre going to break the law, you might as well get your moneys worth.

[@julecasey2376]

Lmao true n I’m in Orange County rn, lots of cops and rich people who hate loud cars in these rural areas, I’m had an frs fbo fully catless from headers to front pipe and I did it again in my 19 86 trd, yolo

[@SirDubsAlot]

Question...so I got the aluminum HKS Intake with the Sound Generator outlet. Since then, I have put on a new cat back exhaust, which is plenty loud, and I no longer want the sound generator. How can I safely plug that outlet and clamp it shut, since it's not plastic anymore but metal? If that makes sense...lol I don't want to have to buy a whole new intake just to remove that thing.

[@magnusnielsen2648]

Music is way to loud and does not add a whole lot. Thank you for making an effort and researching the topic beforehand tho👍

[@pizzabacon332]

Nice car can you tell me your wheels and fitment

[@spiceyparcely9737]

Do I need to tune the car after a light weight flywheel install?

[@AngusOutram]

You don’t, tune won’t change anything.

[@jakubkujawa695]

You can tune it to make it easier to daily drive in traffic with LWFW.

[@TheSchnitzelable]

Shorter final drive + cusco diff cover with air ducts for bigger oil capacity and cooling

[@StillFN]

What wheels are those?

[@ashkanmahouti858]

thank you

[@orcastationaryrecords]

Hey guys, just bought an 2020 86. I have full invidia exhaust, headers, wheels,.tires, and suspension..I dont know of anywhere to tune in my area. Do you think its needed?

[@Twig2250]

Open flash tablet is a good way to go easy to use, im using it for my 2017 86 running a header and e85 also sometimes if you want to be crazy loud you can get an electronic exhaust cut out, with the press of a button you go straight pipe and super loud.

[@orcastationaryrecords]

@@Twig2250 I just filled up on E85 today! Did some research and havent really done any hard pulls just. After about 30 miles or so ill rip it. I can already tell its gonna be sick tho. Didnt even go above 2500 RPM on the way home doing 55-60+

[@Twig2250]

@@orcastationaryrecords yea I took it easy on mine for about the same amount of time, it feels really good with the e85 the engine feels like it runs smoother than 91 could just be me but seems like the motor likes the stuff better. Glad to hear you got it done tho, this is probably the most power we can get out of these things without going forced induction

[@Twig2250]

@@orcastationaryrecords the next thing I need is better tires and brakes when mine go out I think I’m going to stay stock wheel

[@orcastationaryrecords]

@@Twig2250 Right. Im sketchy about a turbo. I dont want to cut my engine life in half. It is my daily after all. I have 18.5in shift racing rims with nitto neo gen low profile. Look great but the bigger size I think throwing off the rear differential, I might go back

[@jasonren4518]

What wheel is that? It look so sixk

[@bradyheber9046]

I love the videos

[@AngusOutram]

Thanks Brady! Appreciate the comment! Hopefully a few driving video's coming soon!

[@Macoosey.]

What wheels are you running

[@AngusOutram]

Wedssport TC105N 17x9+35

[@Macoosey.]

@@AngusOutram thanks

[@jesse584]

the stock 'sound tube' robs power and makes fuel economy worse... cheapest power mod, is to simply remove it and plug it off. then add a throttle body spacer and fuel economy goes way up..

[@ivoe6860]

Cheap legal mods though. Headers are not carb compliance

[@CoreyBroadstock]

Kaayyy swap, be done with it

[@AngusOutram]

I promise, one day it will happen haha

[@chasevaughn1804]

Why would you k swap this car

[@bufordmaddogtannen5164]

LS swap and leave them ks in the dust.

[@bufordmaddogtannen5164]

@@chasevaughn1804 cuz the engine it came with blows. Duh.

[@hauntCS]

@@bufordmaddogtannen5164waste of money to k swap a car like this lol..

[@JV-dz2yf]

why u so sassy man

[@jasonm.1370]

New engine.

[@TheFixer91]

🤣🤣🤣