Which is hard to do, with posted measurements/specs on most of them being either completely or partially wrong, or a copy/paste from a different part altogether lol

"this intercooler is comparable to a gt28"

I bought a turbo from eBay seller dptmotorsport and they successfully shipped/delivered. It was as-advertised. Nearly 85k feedback at 99.7% positive. That's about as reputable as eBay gets.

https://www.ebay.com/usr/dptmotorspo...72.m2749.l2754

Specifics and Features:

• Boost engine horse power significantly
• Increase engine power and torque outpout
• Maintain combustion chamber pressure and fuel/air load
• Contructed with high quality material
• Built for durability and strength
• Dual ball bearing mechanism

This is how the Chinese describe their turbo, I personally enjoy the turbos ability to maintain combustion chamber pressure and air/fuel load.

I appreciate your hate lol. So if the GT2560r is so outdated why is it FM's go to in their kits? At this point I assume that I am incorrect, but I thought the older GT2560r's were journal bearing and the new ones were ball bearing, making them a smidge better.

This is a great thread to mention the fact that Chinese turbos routinely underperform their legitimate counterparts by several hundred RPM in spool and mid-range power. You get what you pay for. I would never, ever use one, even if I were on a budget. Find a used journal bearing T25 or an SR20 GT2560R. Same cost, better quality, better performance.

Use garbage if you wish, but don't delude yourself into thinking it is "the same".

I have my bases covered as far as swapability goes. My thoughts about the ISR are the same. I was just hoping I could find someone who could confirm it.

Why the assumption that there aren't better products than FM's offerings?

GT2560R is a ball bearing turbo.

It's outdated, which is why it's FM's go to. Everything they sell was designed around that turbo a few millenia ago. They use it because it's cheap, easy, and pairs well with these trash motors.

Nothing wrong with the GT2560R its a good turbo. Its not the newest tech but it still performs well. If its not BB its not a GT2560R, it would just be called a T28 at that point. The 2560R specifically is the ball bearing variant of the T28

I know there are better performing kits, but if I buy a kit it's going to be from FM for product development, and customer service. Their kits seem tried and true and there is TONS of documentation for a noob like me. I know a newer Borge Warner setup would be far superior, but lets face it, im going to run a stock motor and hopefully make 220-250whp at the end of the day. Why spend more money than I have to?

2560r is a great turbo for a miata, yes its a 30 year old design, but its sized correctly and works great on a miata. its sweet spot is around 250hp. with great spool and response.
I ran the 2560r for almost 2 years, spool was quick and made good power. no complaints.

I recently sold this setup and went with an EFR6258 setup, as i wanted a bit more power, and a bit better response. but really no complaints about a gt2560r.

The 2560r originated in the Japanese 240sx s14 and s15 cars. the s14 variant is i believe single ball bearing and s15 is dual ball bearing.
The turbo i had was the s14 variant and ran great. zero complaints about spool or power.

if buying used, i would get a used s14 or s15 2560r over a junk journal bearing china crap.
If buying new, i would never spend $900 on a 30 year old turbo, epsecially when the latest and greatest efr is only a few hundred more.

Thanks for your great insight. At the risk of derailing my own thread even more, what do you recommend as far as manifold and down pipe setups for the EFR considering, I would like to run a stock compatible exhaust and cost is definitely an issue.

Why use an EFR turbo and then bottle it up by using the smallest possible exhaust (stock)?

The only EFR manifold/downpipe kits that will bolt up to your exhaust are the Trackspeed or Fab9, both are around $3k.

I personally went with Kraken, great quality manifold and downpipe, only issue is his EFR 3" downpipe is open ended, so you need to have an exhaust shop weld a flange and mate it up to the rest of your exhaust.

If you want to go with a T25 2560r setup, i strongly recommend Kraken manifold/downpipe/oil/water lines combo, its affordable, great quality and will bolt up to your normal exhaust. and you can upgrade it to an EFR later down the road by getting a new EFR downpipe from Kraken, the manifold is the same..

Im not running stock. I have a 2.5" that bolts up to stock flanges. I just don't want to have to fabricate a downpipe to use my current exhaust.

Using an EFR, I guess TSE has a downpipe + manifold (you'll need to use them both). You can check with them. Kraken has a T2 flange manifold and is building an EFR downpipe but not sure if it puts the downpipe outlet exactly as stock.

EDIT: Borka pretty much said it.

Just an fyi on Kraken... Michael offers full exhausts for all his kits (t3, t25, td04, efr) in 2.5, 2.75, or 3.0," all v-bands, your choice of resonators, magnaflow or other muffler, and straight pipe deletes for any section.

Not everyone needs a Bourgeois Weiner to have a good time. Sometimes a regular Johnson gets the job done just fine.

Not every one needs a EFR turbo is very correct, so;
My recommended solid and budget setup is:

Kraken manifold/downpipe and oil/water lines: ~$800
Used Garrett s14 t28 (2560r) turbo ~$300-400
Megasquirt 2 or 3: $550-1000
FlowForce 640cc injectors: $300
Ebay intercooler, pipes and BOV: $200

so about $2.5-3K for a good and reliable setup.

Can a setup be hacked together with shitty parts for cheaper? yes, but it wont perform good, nor be reliable.

Why not pick up an MHI turbo? They're inexpensive new, or easy enough to find used and have rebuilt, or buy rebuilt.