Savington,

Can you let us know how this system spools up compared to the FM II? What about the area under the curve differences?

Erik

Our expectations are significant low-end and high-end improvements with the EFR6258 vs. FM's 2560R. We will have some dyno comparison charts between the two turbos later this summer.

I haven't had time to read through the whole thread yet so sorry if this has already been answered but when would this kit be out? I'll probably end up picking one up when it comes out.

I can not for sure say as I do not work for TSE, but I would expect several more months before we see them. With the EFR's on backorder and the problems they have had I would not expect Savington to be getting any soon.

We'll announce a release date and take pre-orders when we're a bit closer to completion. Before the end of the year for sure, hopefully quite a bit before.

Sounds good. What's the guess as to the price for the complete setup?

Pricing estimate in post 4 is still accurate today. https://www.miataturbo.net/prefabbed...34/#post872073

There's a fair amount of info in this thread, so if you're really interested, reading this thread from post 1 is a great way to get an idea of what we're planning to offer.

The GT25 turbine has to be the worst of the Garrett offerings. I bet is was designed on a commodore 64. The turbo Sav is putting together is in another league altogether. I would expect substantial gains on both ends of the RPM band.

You make it sound like incremental gains in turbo efficiency are a night and day difference.

Transient response is where it's really at.

Pretty much. The 6258 has wheels that are larger than a 2860RS, but it responds and drives like a 2554R and makes more torque down low than either of those turbos could even dream of.

They are when it comes to the GT25 frame. Gains are hard to come by when compared to a well designed turbo. The GT25 frame is not one of those.

Efficiency of the compressor wheel is not the issue. The turbine section is where that turbo falls far short. It's well documented.

Alright, will do. Thanks for the help!

I honestly never really paid much attention to the Borg-Warner turbos, but this is really impressive:

https://www.miataturbo.net/attachmen...ine=1343739892

Red is the EFR 6258, blue is a GT2871R, both in .64 A/R.

Source of data: BorgWarner EFR 6258 Turbo - Full-Race.com

torque curves of my car (red) vs Garrett 2560 /w BEGI IM (blue) vs shuiend's old setup (green)
https://www.miataturbo.net/attachmen...ine=1343756657

bauce

All at same boost of...?

I think they were running lower boost. I was at like 18-19psi up top and 15psi at 3500rpm.

Still, the point is that the curves do NOT intersect. I have more faster spool *AND* more power. My torque curve is like a hat for their torque curves.

My turbo has been on at least 3 different cars for members on mt.net and along with however many 240 people used it before I got it without any turbine wheels falling off. :giggle:

Clearly, it's because I'm *THAT GOOD* at breaking parts.

Or maybe you have to much low-end torque.

:party:

^^ That is what impressed me. More spoolz AND more torkz.

I've seen some non-public charts from way back when BW was doing their initial testing, and Soviet's results are not an anomaly - these turbos produce huge low-end torque on our motors.

Soviet's numbers are on a '99 head, too - with a VVT head and a good tune, I think 220wtq at 3000rpm is totally obtainable. That is wacky low-end.

I was going to be eventually shooting for 300 lbft by 4k and holding at that until I ran out of turbine. Looks like that will be possible on this engine, just like BW's turbo calculator shows. And looks like the first tune with the 5 speed saver setup of 200lbft by 3k and holding that till 6.5k then holding 250hp to redline will be easy as pie.

I'm still lurking, waiting to give you my money.
It seems tho FM is highly known for customer service.
How will your's compare? (Maybe some non-TSE opinions as well, but please don't turn into a bash fest)

Also, with the AEM PnP for you turbo kits, Will you be providing a base map for the given setup?

Third question >.>
Does the AEM EMS Have built in 2-step launch control?
Yes because I want to be THAT guy.


Thanks for your time :)

If anything.. you guys can start R&D on LS1 swap kit :D

I am very tempted to try and bribe Braineack in to levelling a temporary ban on the next person that bumps this thread that isn't affiliated with Trackspeed Engineering because every time this thread gets bumped and it's not them with an update, I am disappointed. :cry:

lol

I'm willing to bet Hustlers virginity that half the nancies in here crying "SHUT UP AND TAKE MY MONEY" are completely full of shit and can't afford the turbo itself let alone the whole 4-5k kit

Good thing there are some people that have a sense of humor and that I'm not crying.

I am the 50%.




But which 50%?!

Hint: I don't have any fabrication skills, don't like to work on cars but do like to drive them and have two excellent AEM tooners near to me that I have good relationships with.

Honestly, the main downside for me is the fact that I have great relationships with a couple of much higher volume shops and can get prices significantly discounted from Trackspeed's retail pricing on a couple of the individual components. 1%er problems?

I've always admired FM's customer service, and we consider them to be the shop to beat in this market. I'm available via email and phone during the week to customers, and will usually answer emails on the weekends as well, and since I'm the one who designed the kit, I can usually get you set straight pretty quickly. ;)

With our kit, you also get the benefit of countless hours of R&D on not only the components in the kit, but also the methodology of the parts selection and the install process. We've been racing turbocharged Miatas for years, and our cars are some of the fastest forced induction Miatas in the world, and the kit you'll get will reflect that level of experience and maturity.

Our basemaps will get you up and running, but you should expect to have the car tuned professionally if you want to get the most out of the system.

The EMS-4 boxes do have launch control capabilities, yes.

We're an V8R dealer so we can provide the necessary parts to make that swap happen ;)

https://www.miataturbo.net/attachmen...ine=1347328139
I like this guy. Every response to peoples questions is great and informative.
+1
I rode in a club members turbo miata (13-15psi) and I'm sold for turbo miata build. I'll be waiting for word on your kit, even maybe my car as an R&D :D just to get it early muahah.


Ofcourse with any base map, okay cool. I know alot of people have been jsust taking the base map and letting it autotune with their (Hydra and Megasquirt systems) using the long term trims and what not. It seems to be working for them but for sure get it dyno tuned professionally.

Ohh yay :D I like all the features of the AEM boxes. I dunno why more people aren't running them.


Well V8Roadsters are local here in Tampa, FL :D so it's pretty easy to get the mounts and everything. I was talking an actual turn key kit. It seems FM is the only in the market on that front, but they do the LS3.

Savington, any updates on this?? Like to see some pics and videos..... Im running a stockish 96 engine in a 97 with a Megasquirt PNP,,,, 230 or so sound sweet!! :)

Put your money where your mouth is. How much to ban the above 1-post-in-3-years noob?

I love bribes! please do.

Your stockish block would love ALL OF IT.

Please dont band me, I just what to know more.. Ive heard so much about this kit and the BW turbo....

Savington,

Are you planning on enlarging the holes on the turbine housing to accommodate 10MM studs? If so, will you need to machine the flats on the turbine housing to accommodate the larger nuts?

Thanks

We'll be using M8 Inconel hardware and a turbo brace.

I'm surprised you're not going straight vband everywhere.

cliff notes:

no v-band housings for EFR yet
10mm hardware with EFR is doable (i haz it) but a pain in the ass

Treadstone Performance Engineering was working on something a year and a half ago, but I do know if ever was finished. If they make a V-band housing that fit the v-band flange currently on my manifold I would be very tempted to get one to try out.

I actually just asked them about this and their official answer was, sorry we're only making them for the bigger ones, B2 frame.

That sucks. I might give them a call in a bit just to chat and see what is up.

Maybe if we all pester them they'll do it.

I just got off the phone with them and he though I was you calling. Said the same thing that they are only working on the bigger housings. Maybe one day in the future they will expand, but I highly doubt it ever happens.

We're sticking with the standard Borg housing.

ATP machines the Tial vband inlet size into the garret 4 bolt inlet flanges, I don't see why that can't be done to the borgs too.

I'd be fine with the 4bolts/inconel solution.

Sucks about no v-band. But inconel should be good still.
Any updates?

:inout:

The FM M8 inconel package (installed with Resbond) has been flawless (so far) for several track days, autocrosses and spirited street driving. Stock studs failed fairly quickly for me.

:gtfo:
Stuff I already knew..

This might be worth something to ya'll:

Scion FR-S Forum | Subaru BRZ Forum | Toyota 86 GT 86 Forum | AS1 Forum - FT86CLUB - View Single Post - Treadstone Performance Turbo Kit Update!

Vband or not, these EFR things have some nice features built in. I'm rethinking the hot side of my setup and this kit could simplify things. Eagerly awaiting more info.

J

Any updates on an availability date? I'm planning to add a turbo this winter and would seriously consider this kit if it will be available... Car is of the road, ready to start.

Same here, I want to see pictures of this awesomeness. Hurry up.

inb4 ban