Side By Side: GT2554R vs. GT2860R (BoostVlog 7)
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- เผยแพร่เมื่อ 4 ก.พ. 2025
- Thought some of you might like an actual side by side comparison against two turbochargers. The GT2554R is rated by Garrett for a maximum of 270bhp, while this version of the GT2860R is rated for up to 360bhp. Depending on your setup, those numbers can be exceeded (ex: my car).
![What do you know about turbocharger design considerations? | Garrett G-Series [TECH TALK]](http://i.ytimg.com/vi/3La14cdzGkM/mqdefault.jpg)
![What do you know about turbocharger design considerations? | Garrett G-Series [TECH TALK]](/img/tr.png)
this is very helpful thank you very much for taking the time to create a informative video!
YESH! Greg video! Awesome! I'm in a big modifying streak on my car, so your videos are like eyecandy to me right now. I'm really interested to see how this will change your car characteristics. And if your engine survives ^^
+Totally Legit Gaming [TLEG] I have another BV I'll probably upload tomorrow or Tuesday that's a "first impressions" video, but I've already started collecting more data above that via MS logs and Virtual Dyno. So much fun so far!!
Great video. Simple well explained in 3 minutes.
The largest different which you didn't note was that the 53.8 you were referring to was the inducer of the turbine wheel; which you cannot see. The exducer which you were visually showing is around 6mm larger in the 2860rs. This difference and the 9 blade (gt) design is what gives it the jump in 50hp compared to a t25/t28 turbine wheel
Yeah that looks like t25 not a GT25 exhaust wheel
Thank you for such an informative video. Since you swap back and forth between the turbos on the same motor with only a change in manifold, could you describe the boost build differences? How do they compare in how they build boost and fall off towards redline?
Hi I have a Garret GTX2860R Gen 2 t25 .64ar 5 bolt and 3" inlet, 2" outlet anti surge. I want to switch over to a GT2554R with the same spec housings and I was wondering if both turbo's will have the same footprint and bolt up the same or if mods will be required?
i brought a 28/60 gt r garrett brand new for my subaru = but have not fitted it yet , still just getting all the parts for a complete job .
dude idk which 2860 i have but the R and RS look similar and wanted to know what oil restrictor and an fitting sizes your using?
You're the best Greg
Perfect man
hey greg would you recommend going turbo or kraftwerks supercharged for drifting a miata?
+StevoCarDude If you choose the right sized turbo, I'd take it over a supercharger any day.
Greg, Do you sell you GT2554R? I am looking for one on my miata?
+fiches12 I will not be selling it. I'll probably be selling the GT2860 when I finish with it.
Are you just switching it for the car passion channel? for the comparison?
fiches12 I'm switching it just for my own education and experimentation. Although I will be documenting it via this channel and TCPC.
How much would you want for it? I'd probably buy it I went from a 2554 to a 2871 and I think the 2871 is too big I miss my spoolup. A 2860 may be perfect. If you would rather not say it here I'm Wade5k on Instagram we have a message thread already
Kris Wade If you think a 2871 spools too slow, I would avoid a 2860 also. They have the same hotside so the spoolup is only going to be slightly faster due to a lighter compressor wheel. Do you know what your turbine a/r is on the 2871?
I recently picked up a Miata and a bunch of other parts in a trade recently and one thing the Miata came with is a Garrett .42/.48 and I was just wondering what your opinion would be on that specific turbo. I have a 92 1.6 with a 1.8 5 speed and rear end.
".42/.48" isn't really a model of turbo, I'm guessing those are the housing a/r's? Does it have an ID tag on the CHRA or any other markings? 5-bolt turbine outlet?
+Greg Peters is there a way I can send you some pictures of it?
gearhead8989 Sure! thecarpassionchannel at gmail dot com
Which is better and safer for 1.6 nb model
There really aren't any turbos that are more or less safe for an engine. It's all in the tuning!
That being said, the GT2554R is a much more suitable turbo for a 1.6L street car.
hey Greg new subscriber love both your channels just had a question if you are familiar with sheet tab on the 1.8 Miata apparently it's something to verify that the engine has been overheated just curious to hear your thoughts keep up the good work love your videos thanks in advance
Do they have the tab stock? I always thought that was something you added after a head gasket or something for future reference.
+Greg Peters ya you're right it's not a factory thing. thanks for the response.
how do you know so much about cars?
+Skycat_22 Literally 18 years straight of reading and researching and talking to people that know more than I do. I constantly want to learn more and more, I'm addicted to it! It all starts slow, learning about oil changes and spark plugs, and you just keep building on your knowledge base. I try to learn something new about cars every day. The more you know, the more you realize you don't know. I've still got so much to learn.
hey, man, been watching your vids for a long time now. what do you think of a tb0363 for a 1.6? it's a t3 50 trim .52/.48, internal mesuments are very similar to a gt2554r. I can hit you on Instagram of that's easier to communicate on.
If it's similar to a 2554 it will probably work excellent.
Hi Greg, love your channels, and i have to say that i've learned a lot whatching your videos! Thanks a lot for doing all this "how to" stuff! Since i'm going to boost my 2000 Miracle edition 1.8 Miata, i'd like to ask you if Garrett GT2560 is different on the hot side from the GT2560R, because i'd like to use a GT2560R (since here in Italy it's cheap, and i cannot find a NON R version) with Begi manifold and downpipe. I know that both the turbos regarding flanges are identical, but i'm sure you know much more....! Please keep doing video because we all learn a lot from your experience!! Thanks mate!!
The two versions of the turbo are the "T2560" and the "GT2560R". The only difference is the GT turbo is ball bearing, and the other one is a journal bearing turbo. Both are excellent choices for the Miata engines, the ball bearing one will perform better but is more expensive.
+Greg Peters I'll go with the gt2560r version!! Here in Italy it's 819€ (something like 950$), but it worth the money! Thanks again Greg, especially for your videos!!!
Do you think the GT28 would be a good swap for a cruze 1.4T?
Way too big in my opinion
i had to drill my 2554r stud holes too, stupid begi manifold. i hate that. whats the point?
+Ryan Wolfe Mega strong studs that won't stretch. But honestly, so much headache. The worst part is how big the nuts are, makes install so much harder that it needs to be.
+Greg Peters installing the nuts on the head side of the manifold is more difficult the manifold does not give you enough room to get more then tiny turns of all the lower nuts.
But then again if installing is the only complaint we have with the begi manifold that isn't too bad lol
Ryan Wolfe Outperforms the Flyin' Miata manifold for the same price too. Although the customer service of FM might outweigh that benefit, lol.
Hey where does your GT2860R fully spooly at?
On this car it was very laggy and couldn't hit full boost until around 4000-4200. This was also the big A/R GT2860, compared to something like the modern GTX2860R it's very outdated
i feel like im here too early...
So is it on yet?😁😁
+Sam YES and I have another BV that's going up maybe tomorrow night or Tuesday morning with first impressions!
I can't find a used gt2554r turbo
I have one if ur interested
I am (bendeckers@outlook.com) contact me
+Kris Wade wat turbo and how much would it be
+Boosting cars a GT2554 and I'm not sure tbh I havent checked what the used prices are like yet
+fiches12 just now seeing this. coming up
Coin money
Garrett is the most beautiful male name 😁
Thanks bro
Greg, any ideas on the effects of compressor housing size and spool?
To be honest not really, all I know is that a lighter/smaller compressor wheel will help spool up just a little bit only because it's lighter, but that's partially negated because they move less air at any given wheel speed. (If I remember correctly, the compressor wheel in my 2860R moves the same amount of air at 140,000rpm as the 2554R moved at 155,000rpm). The turbine wheel and housing have a much greater affect on spool up. I'm planning on upsizing my compressor setup on the GT2554R to make it a 2560R which should give me a good idea of spool changes!
Disco Potato!