BEST TUNING MODS for Toyota GR Yaris & GR Corolla
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- čas přidán 12. 07. 2024
- BEST TUNING MODS: improve your GR YARIS.
Today we will be seeing the best Tuning Mods possible for the GR Yaris and GR Corolla, and in what order I suggest to implement them, in order to help plan your actions in function of what you ultimately want to obtain from your homologation special project car GR4!
From camshafts for power tuning to battery weight saving and aerodynamic hood vents, a comprehensive list of everything to consider when starting your modification journey!
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FACEBOOK: / adrianojames.piras
TIMESTAMPS
00:00 - Intro
01:33 - GR Exhausts
02:00 - GR Suspension Arms
05:15 - GR Suspension Coilovers
08:20 - GR Power Upgrades
09:20 - GR Hood Vents Kit Cooling
11:50 - HJS Catalyzer
13:00 - GR ECU Tuning, Springs & Cams
14:55 - GR Intercooler
15:15 - Mirror Riser & Seat Lowering
17:40 - Outro
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#ajclubsport #adrianojamespiras #adrianopiras
#gryaris #gr4 #gryarisrzhighperformance #grfour #yarisgr
#projectcar #car #homologationspecial #cartuning #mods #tuningmods - Auta a dopravní prostředky
Thanks for the honest and knowledgeable opinion. I am tired of sponsored content for the GR Yaris. Please allow for membership of your channel so we can support you!
Thankyou so much, I really appreciate it! And please share, I really need new subscribers at this time!!
i only needed 40 seconds into the video to subscribe.
thanks for sharing take this channel to the moon!
@@batialexis9339 Thankyou so much 🙏🙏
This is sponsored content, he's 'developed' a product he's selling you.
Great video thankyou! Still waiting
on my gr yaris to arrive but your tips already give great inspiration 🙌
Thankyou for following!
Great video. Most informative one I’ve watched.
Thankyou mate!
Great video Adriano. I really want some bushings after watching this. So many things I want for the GR Yaris lol
Sorry for the late reply, my direct email il adriano.piras1@gmail.com
Thanks for the honest info... no one else has mentioned changing the cat... makes sense
Thankyou!! Yes, it makes a huge difference!! Always trying to provide unbiased service content!
@Paul Degan : Phil (@ROETHELI Racing) has mentioned it in one of his videos as well & done it on his GRY.
Very very very much appreciated!! Big thank you for the instructing video!
🙏 Thankyou!
@@AJClubsport are you from northern Italy? Where do you get all the suspensions parts mounted?
@@mstra21 mainly direct from the producers!
@@AJClubsport Hi Adriano, good info. in regards to the suspension bushes what was the supplier? did you get them as a complete kit?
@@markstrizek2782 Thankyou: from Powerflex and DNA Racing!
Thank you for this information.
cheers mate, thank You for following! Sorry I didn't see this before
Thanks!
You bet!
Hi Adriano,
Greatly informative vidéo, thanks for uploading ! I've watched the others as well, and I see you are really enjoying your GR-4.
Regarding the HJS down-pipe, do you think it's OK to associate with the rest of the OEM exhaust ? I want to limit exhaust noise purposely.
Hello Mic!
Yes, there will be no problems to pair hjs kat with OEM exhaust. My advice is to remove OPF at the same time, otherwise you will see limited benefits. Don’t worry, the car will still be very silent with the OEM rear silencer in place
@@AJClubsport Hi Adriano, thanks a lot for your quick answer. Have a GReat day !
Thanks 👍
Thankyou!
I got $15 vents from ebay and cut them in. Works well, watching before and after ait temps. And while sitting you can see thenheat come oht the vents so less heat soak
I’m happy you found your path! For sure they work when you’re sitting, not so sure when you’re speeding! 😉
Took me 10 seconds into the video to like and subscribe. Would be awesome if you list / link the parts and things you talk about in the video description
Thankyou so much! In this phase I am not putting links because I have no returns from the producers: the goal is to get up to 1000 subscribers, then do it all the way! For now, you can find more info on the specific parts on my Instagram page! Hope this helps
Hi Adriano great video. Are both bushings harse or noisy for 70% Road use and 30% track. I want to try to lessen the float effect. Thank you Adriano.
Hi Jay, thankyou for your message! The bushings will be fine for your use: in real life you will feel low speed bumps and speed bumps a bit more because of the rear longitudinal one, but nothing too bad. A welcome tradeoff given the huge positive difference they make in the car’s handling!
Very infomative video!
Thankyou 🙏
You won't believe it... just 2 hours before I watched your videos, I made a design of an air intake with the original air filter....then I saw your video and the CAD model of it.
I would suggest to maximize the diameter of the turbo inlet and not using the OEM one. Furthermore I would add a honeycomp insert to egalize the airflow after the air filter.But I don't know, if this creates more lag.
@@Ingmar72 hello, thankyou for sharing this! We designed the air intake last year, and you will be able to view more content on my Instagram page.
It works really well, peaking at 16bhp!
Yes, the air inlet on the turbo cool side does help, but there are already options on the market. The stock filter is the best option for laminar airflow, and we didn’t see the need for the hexagonal insert, it works as we did it. But, it could be tested
Perfect, I would really appreciate to see (and buy) the final result!
@@Ingmar72 have a look on Instagram and let me know!! Thankyou
Great video, thank you very much!
Unfortunately, these BOS suspensions do not have TÜV papers...
Which ones would you recommend with TÜV?
Sorry I didn't see this on time, my direct contact is adriano.piras1@gmail.com
Hello,
Kelford has several camshaft models for the GR Yaris, I understand that the most appropriate are the EZ or the A for basic tuning. Which do you think would be more recommended? Will power be gained with the EZ (basic)?
Yes, the EZ basic version has been proved good for 400hp on the stock turbo, when installed with its springs and retainers
Fitted the big boost kit from airtec and the Forge intercooler, and it really made a considerable difference in power and midrange power, I think mainly due to the piping matching the 50mm throttle as the stock elbow and piping is ridiculously small 39mm measured
have you mapped the car as well?
Interesting! I have the Forge intercooler with boost pipe kits and turbo outlet, great products for the GR!
@@SgtHail yes it’s got a moderate tune on running 1.5 bar boost now
Hi A, do you sell your air intake system or 3d print file?
@ericvermeulen9853 for now I don’t yet, but this could change
Great video. Is there anywhere that you can recommend that would be able to get these parts and to do the work as I am not mechanically minded? I live in the South of the UK.
Thankyou Adam! Unfortunately I am no longer living in the UK, so other than Litchfield, I wouldn’t know whom to suggest!
@@AJClubsport Thanks. Could you provide a list of each of the parts that you recommend for each of the areas that you mention. I don’t think you discuss a specific exhaust but if you could also offer an exhaust options that you recommend that would be very helpful too. Many thanks.
Hi AJ, what is your opinion about oil-cooler? I think this may have some very positive effect on engine cooling
Hello Matteo! Oil cooler is a must-have for me and I prefer the version from Hel Performance because it has a very good thermostat system that enables partial flow also at low oil temperatures.
If coupled with my hood vents, never think of heat problems anymore!
My question on the bushings: you say it's almost mandatory and transforms the handling- this makes me buy them but i have my doubts on if i can install them myself at all, what i need for installing them.
Also your take on how long they will last
Hello mate,
Yes, they are very important to increase the handling. Since this video was made, the Wiborg Engineering front LCA arms came out. These transform the front geometry and dial out ALL the understeer, both at stock height and at much lowered. No coilover will do this, as they have different jobs.
Both in the case of simple bushings and of the Wiborg arm kit, you will need professional installation by a mechanic.
I advise you to go Wiborg, and then you will thank me for the advice!
If you send them an email, saying you’re a subscriber to AJClubsport, they will get you a 10% discount.
Great video! I have the same line of thought as you regarding engine mods. Indeed the catalitic unit is a bottleneck.
Do you have a link to the cams and spring + retainers you mention at 13:28? I've read so many people having valve float problems or even retainer failure with the GR Yaris and that's a concern for me.
I do not really like how easily people go with the ECU tunning on cars with stock components, because there is always a compromise, usually on engine reliability. The manufacturer already optimizes the ECU to find an equilibrium between performance and reliability.
Because of that for my GR Yaris I prefer bolt-on mods which are street legal on Europe: Exhaust, the catalytic converter than you mentioned, and a better air intake. I considered a bigger intercooler, but like you said, it comes with compromises.
What are your thoughts on an oil cooling kit? I think the car has a problem with oil temp under heavy use.
Hi and thanks for your reply!
The cams come from Kelford, have a look at their site!
Oil/engine cooling: have a look at my other video on Cooling, as this is really treated well there!
@@AJClubsport Thank you so much for your quick response. I just discovered and subscribed to your channel, so I didn't notice you already had a video on cooling (I was watching the exhaust video as I type this comment 😃 ). I'll watch the cooling video right after, thank you!
Great content Adriano 🙏👌. Just keep it up. Can you pls send me full name of the powerflex bushings. I am from Sweden and first butch of Öhlins kit was just picked up from diffrent kits and put it together. This year in the and of august Öhlins will realese new update it "real" Öhlins kit road and track developed here in Sweden and I pre order it one kit for my GRY. I hope this time is good enough 😁?
Hello! Thankyou for your reply and information on Ohlins, that matches mine: be aware of what hydraulics there will be inside! I don’t understand why people just go for the BOS kit, as its super, its tested, and works great!
Bushings are: www.powerflex.co.uk/product-details/Front+Wishbone+Rear+Bush+Caster+Adjust/14184.html
@@AJClubsport
Thx a lot Adriano. Where can i find BOS kit?
@@vtec4meeee www.bos-suspension.com/toyota-yaris-gr-4-shocks-road-kit-c2x36084311
Video fatto bene, chiaro ed informativo..... una domanda .... che mi dici dell'OPF delete (lasciando lo scarico per il resto stock e utilizzando diametri stock per la modifica)? Mi riferisco ad un'auto utilizzata solo per sano divertimento stradale e nulla di più....
Ciao, ti ringrazio! Sì, l’OPF è stato installato solo sulle vetture europee per rientrare nelle normative anti-emissioni.
Addirittura non ricalibrano la centralina, quindi è un vero tappo! Se lo rimuovi, vedrai un aumento di 10-12cv ed una riduzione dei consumi!
@@AJClubsport grazie mille x le info... 😊
Like your videos! Question, what spring rates do you have on your GRY?
I am running 37,5Nm/mm that is the standard rate for the BOS Suspension kit!
Thankyou for following!!
@@AJClubsport With wide semi slicks on track you would get quite some lean in the corners, or are the anti-roll bars uprated?
@@magnus-thome hello Magnus: please watch my suspension comparison video to see exactly how much the car leans today, with hydraulics set at 50% on Goodyear F1 Supersport’s. Car lean is not only controlled by ARB’s and springs: it is controlled, in this case, also by the nitrogen filled dampers, that have a very impressive valving that keeps the car level with very little roll. You would want to test the car on wider tires, on track, and only after that decide if you need stiffer ARB’s. Remember that any way you look at it, they are taking overall grip away from your setup!
@@AJClubsport I'll check out the video 👍 I run 265 wide semislicks (I've run on TrofeoR, CUP2 and AR-1 so far) and the side forces generate a bit of side lean 🙂
@@magnus-thome on what suspension are you?
hi, what is your opinion on the stock gr yaris intake and does it make sense to change it? What are the benefits of your design?
The aftermarket intakes give you around 15bhp more, midrange and high revs, plus they don’t fish the hot air from lower flap
Eureka moment, now I get it. By the way, come on Verkline, if you are watching, you know who you should sponsor.
Thankyou Lambros!!
Hello,
From powerflex that you said, I need only this part : "Powerflex Track Front Wishbone Rear Bushes Caster Adjust - Yaris GR (2020 on) - PFF76-902GBLK" ? Or I need more part from Powerflex?
Thank you for the help
Hello, you are right, only the specified part.
I also use the engine and gearbox mount inserts, but it’s not mandatory
Hi Adriano, for stock turbo and street driving EZP or A type kelford cams?
Sorry I didn't see this on time, my direct contact is adriano.piras1@gmail.com
Do you need to do this suspension work if you have the Rallye? It already has upgraded suspension yes?
Hello: I imagine you are referring to the Circuit version, that is the car I have. Yes, the illustrated work is necessary if you want to have the best ClubSport Yaris possible
Subscribed, do you need to re-do the suspension geometry after fitting the bushes and if so, what are the recommended settings? Cheers Richard
Yes, it surely requires a new alignment. In general, slightly closed toe F+R, and between +0,5 to +1° deg camber more in front than rear.
@@AJClubsport many thanks from a Swiss Yaris owner!!!
@@richardmueller6322 my pleasure!
Hi, is a very informative video congrats, I have a couple of questions I hope you have time to answer, the first one is about the bushings, how they affect (noise, vibration, and harshness), is it too much or not noticiable? and the other one is that you did not mention about wheels an tyres, some people change to wheel with 18x9,5 and 255/35 tyres and change the offset, waht would be your recommendation about wheels and tyres?, thanks, I hope see more videos about GR Yaris
Hello, and thankyou for your message!
The bushings do affect NVH, but in a marginal way. In my opinion, the benefits outgo the downsides by far! The rear longitudinal arms upper bushings have the greatest effect on small harsh bumps, but sharpen the whole handling by far…
Regarding tires: it depends what you do with your car. For street I like the stock sizes with semi slick tires, like Sport Cup 2 Connect. For full out track, 265/35R18 with 9,5J R18 Et45 rims BUT you will need corresponding suspension setup, otherwise you will find yourself “hanging” onto the tires instead of having an enjoyable track machine!
@@AJClubsport thanks for you quick response, have a nice weekend!!
@@jorgeluismedinabegazo1043 my pleasure, enjoy you weekend too!
Which is good cat back exhaust. Not too loud . Been looking at fujitsubo.
Inoxcar 70mm, resonated with mechanical rear silencer!
do you mean that Bilstein B16 is better than Ohlins R&T? I'm thinking about road setup... Thanks
I mean that, for a lot less money, Bilstein B16 will give you comparable performance
Do you have the vents on sale or can give me more informations ? thank you
Hi, please contact me in private in Instagram
Hi any plans on marketing the bonnet vents yet? Also I’m looking at suspension options but don’t want to lower too much, I can’t find much data on the lowering when fitting the bos suspention?
Hi Neil! BOS Steet kit can go from +10mm to minus 25/30mm. Get it from their online shop and you will never look back!
Bonnet vents: unfortunately they are too expensive to produces, so I decided not to market them, sorry…
@@AJClubsport thanks for that, that’s a shame they look awesome 👍 and actually functional unlike many options !!!
Adriano does anyone make the bonnet vents? I’ve been looking ages.
Wish you can say suppliers of the items or share their links , great show
Ok, sure!
Hi, Have you tested the yellow Powerflex Engine&Gearbox&Torque Mount Insert? and what do you think about them?
Hi, actually I have tested the black version, both engine and gearbox sides, and am very happy with them! The additional Nvh is not an issue to me in everyday use, so for sure the yellow version will have an even lesser impact
I'm running whiteline rear torque mount insert with yellow powerflex front inserts. Would absolutely recommend this for any GRY owner. It's sorted the notchy shifting, throttle response is improved, front end is more direct and negligible added NVH.
Thankyou for sharing!
Hi,
where can you get the "long rear trailing arm Bushing" from Powerflex??? I can't find it anywhere, not even on their page??!! Have you a source??
Hello Greg, thankyou for your question!
Infact it has been my mistake in the video: you can get the rear trailing arm bushing from Verkline (I suggest) or from DNA Racing (backup option)
@@AJClubsport , you mean the Verkline spherical rear trailing arm insert kit?
@@Ingmar72 exactly! But if you can afford it, their whole arms are fantastic
Please make a video showing all the mods you did🙏🏻
Ok!
Nice tips, as always! Thanks! I have HJS downpipe and Kind3D intake duct on my list. How does the rain go with the vented hood? Never had any experience with them.... As for the mirror riser, I'm using Tegiwa one, helps much with visibility in front, but yea, the angle had changed so you see less distance in the back, it points more downwards, towards the road surface.
I wonder about the same. For climates less "Italian": I think that rain /snow getting under the bonnet it's a concern. Maybe these vents should a drip tray to sort that issue. Looking forward to see this commercialized ... also an cold air intake ;-)
Thankyou for your reply! Regarding the water / bonnet vents: I just covered my Ecu with a waterproof material! The fuse box is totally waterproof, the rest is bodywork! Same as on Evo’s, there is no problem!
@@AJClubsport One more question if you don't mind :) Would you suggest swapping the mentioned bushings even if I plan to stay on original dampers and springs till they give up? Thanks!
@@markos8400 absolutely yes!!! It makes a world of difference!!
@@AJClubsport For road use / inspired mountain road driving, would pink ones be better or black all the way :)
What's is your setup? Is setup stay same from "Stage Monte Carlo" video? Just to have reference how it sounds
At the stage of that video, it was stock Catalyzer with full 70mm line, central silencer and mechanical silencer back box by InoxCar.
Now I mapped and am also running their decat downpipe
@@AJClubsport Thanks AJ!
@alexeyyatsew8004 pleasure!
What do you think about kw?
It is a good and reliable brand!
Where can I buy the bonnet vents 🙂
Hi there! These aren’t really on sale, but I could make a pair of one-off ones, but they are very expensive. Contact me on Instagram if interested, cheers
HI ! YOUR VIDEO IS VERY USEFUL! CAN YOU TELL ME WHAT YOU MEAN BY POWERFLEX AUTO DIRECTION REAR LONGITUDINAL ARM BUSH?
Thankyou for this reply!!
I intended the Rear Trailing Arm bushing: you can source it from Verkline!
The front arm bushing, instead, can be found from Powerflex (Black series).
You will find pictures of both on my Instagram profile!
@@AJClubsport Powerflex Front Wishbone Rear Bush Caster Adjust for Toyota Yaris GR (2020-) Black Series e verkline Rear lower long arm insert - Toyota GR Yaris ok ?
SONO GIUSTE ?
@@Fastgatto cosa?
@@AJClubsport LA DESCRIZIONE DELLE 2 BOCCOLE CHE TI HO MESSO SOPRA ?
If want just spring . Which springs please ?
Eibach Pro Kit
@@AJClubsport what do you think of the Tein springs? Thanks
@elvinomac I don’t like lowering springs in general, because they take bump travel away… tein is a reputable brand, so I’m sure its a good product BUT I know nothing about the rates they use
@@AJClubsport Spring Tein 32 nm front, 41 nm rear
they should work well, making the front a little softer and rear a little harder
do you have a rear torque arm on your gr ?
Do you intend the longitudinal lower engine/gearbox mount? In that case, we modified the stock part by filling the holes with 70 shore liquid rubber
@@AJClubsport nvh while idling?
@@jbt6121 to me not much difference..
@@AJClubsport would you suggest this mod too? Can you feel any benefit with a stiffer lower torque arm? I was thinking about the Verkline's one...🤔
Thanks and keep on posting videos about our fantastic pocket rocket!
P.S. I'm going to install on the front your suggested powerflex bushing in the next days, really anxious to see the effect of a more rigid bushing and more Caster in combination with DNA top mounts giving close to 3° Camber
@@matteovanini9459 Thankyou 🙏🙏
Let me know how you like the new setup!
The torque arm yes, it makes a big positive difference
What air intake please ?
Since ours didn’t come to market, a safe choice would be Eventuri
@@AJClubsport thanks. Is eventuri safe to use on a standard ecu ?
@@webbieuk yes, I confirm it is safe
part numbers for powerflex bushes ?
You can find them on the Powerflex site: beware to purchase the BLACK SERIES version! thankyou for engaging!
street car £3000 to spend can u give your recommendations
Very difficult question, but I will give it my go:
- EcuTek remap, NOT ANY OTHERS!!
- DECAT or OPF-eliminating full exhaust, 70mm, not 76mm!! (you loose too much spool at these power levels)
- Panel filter, cotton, NOT sponge type!
- Shift Cables aluminium bushings from LAMSpeed
- Motul RBF660 or similar high quality brake/clutch oil flush, well done...
- F/R Cusco Strut bars (you have no idea, especially the rear one...)
- Front Powerflex Lower arm Rear Black series buhsing (the one with metal housing and ball inside)
- Rear Longitudinal trailing arm front bushing (made similar from the above, from Hardrace, Cusco or DNA)
With these mods and propper alignment, you will sped a bit less, maybe, and have really tangible results to appreciate every day without regretting!
Let me know how it goes for You!
@@AJClubsport What do you think of SprintFilter synthetic air filters? Thank you!
@@AJClubsport do you think cotton BMC is better? Thank you
@@elvinomac I use BMC, but all cotton filters are about equal. I advise against sponge panel filters on the GR, from personal experience (lasted 10k km).
I like the standard exaust, nobody hear you coming
yes, that is a very good point, I agree! The version we developed with InoxCar can also be very stealth, depending on the configuration chosen.
Get a proper mic and get rid of the disturbing music. Super difficult to focus.
is it better in the new videos?
Adriano can't find the link for those bushes can you share the link of both? Thanks a lot on sharing
Hello Bati, sorry, just go on the vendor's online shop and input GR Yaris!