Miata Turbo Forum - Boost cars, acquire cats.

Miata Turbo Forum - Boost cars, acquire cats. (https://www.miataturbo.net/)
-   DIY Turbo Discussion (https://www.miataturbo.net/diy-turbo-discussion-14/)
-   -   EFR6258-A Question (https://www.miataturbo.net/diy-turbo-discussion-14/efr6258-question-96726/)

psyber_0ptix 06-07-2018 07:49 PM

You can buy an ev1 pigtail at advance auto

borka 06-07-2018 07:53 PM


Originally Posted by psyber_0ptix (Post 1485781)
You can buy an ev1 pigtail at advance auto

Thanks, i got in touch with the turbo supplier and he told im its an EV1 pigtail plug.

already ordered one from ebay. $4

thumpetto007 06-07-2018 11:05 PM

Is there really a hole drilled all the way through for the speed sensor? It comes from the factory only partially drilled. Definitely need to plug it if its all holey.

IMSTuner 06-10-2019 10:58 AM

I just called Gavin and order it with a price match to https://www.jegs.com/i/BorgWarner/156/179150/10002/-1 .

$1,179.99 shipped

borka 06-10-2019 11:11 AM


Originally Posted by IMSTuner (Post 1538010)
I just called Gavin and order it with a price match to https://www.jegs.com/i/BorgWarner/156/179150/10002/-1 .

$1,179.99 shipped

That Is a supercore. It's missing the exhaust housing.

Are you sure you are getting the whole turbo from Gavin?

IMSTuner 06-10-2019 11:17 AM


Originally Posted by borka (Post 1538012)
That Is a supercore. It's missing the exhaust housing.

Are you sure you are getting the whole turbo from Gavin?

I gave him your part number and told him to price match it to Jegs.
Part number 179150

I just sent a email just to confirm and make sure.

borka 06-10-2019 11:50 AM


Originally Posted by IMSTuner (Post 1538016)
I gave him your part number and told him to price match it to Jegs.
Part number 179150

I just sent a email just to confirm and make sure.

The page you linked at jags is selling a supercore part number 179140.

Gavin might have mistakenly price matched this for you.

IMSTuner 06-10-2019 12:01 PM


Originally Posted by borka (Post 1538020)
The page you linked at jags is selling a supercore part number 179140.

Gavin might have mistakenly price matched this for you.

I think you are looking the the spec and that's where they tell what the core is. if you look on top its

BorgWarner EFR 6258-A Turbocharger B1 Turbo Frame Size


Part Number: 156-179150


Gavin replied back and confirmed its a complete turbo.

borka 06-10-2019 12:10 PM

Yeah the Jags page is confusing. On top they say 179150 full turbo and in specs it says 179140 supercore.

That's an unreal price for a complete 6258 turbo!.

Gavin is the man

IMSTuner 06-17-2019 12:43 PM

It's here!

https://i49.photobucket.com/albums/f...psxyuwe230.jpg

borka 06-17-2019 12:53 PM

Congrats, you will enjoy this turbo.

What hotside parts you running?

IMSTuner 06-17-2019 01:02 PM

EFR 6258-A Turbocharger
  • B1 Turbo Frame Size
  • 49mm Compressor Inducer Dia.
  • 62mm Compressor Wheel O.D.
  • 58mm Turbine Wheel O.D.
  • 0.64 Turbine A/R
  • T25 Single Flow Turbine Inlet

borka 06-17-2019 01:33 PM

I meant what kind of manifold/Downpipe setup you planning on?

shuiend 06-17-2019 01:44 PM


Originally Posted by borka (Post 1538923)
I meant what kind of manifold/Downpipe setup you planning on?

He will be going with a Mkturbo EFR setup. We talked about it about 1.5 weeks ago when I was getting a flattop from him, and gave him the info on where to get the turbo for,cheap.

borka 06-17-2019 02:03 PM


Originally Posted by shuiend (Post 1538924)
He will be going with a Mkturbo EFR setup. We talked about it about 1.5 weeks ago when I was getting a flattop from him, and gave him the info on where to get the turbo for,cheap.

Good stuff! I didnt know you plan on having efr compatible kits.

shuiend 06-17-2019 02:09 PM


Originally Posted by borka (Post 1538925)
Good stuff! I didnt know you plan on having efr compatible kits.

Already have a few customers out in the wild running them. New cast manifold will be in a t2 and t3 version. Just slow going getting a cast manifold made in the USA at a price point that makes TacoTaco manifolds not worth the cost.

IMSTuner 06-17-2019 02:16 PM


Originally Posted by borka (Post 1538923)
I meant what kind of manifold/Downpipe setup you planning on?


Yeah I was talk to Lars regarding MK setup so I don't have to fab the down pipe and lines. I currently have a Kraken T25 manifold and down pipe that I will off load since the outlet adapter and downpipe would be useless to me. I still need to purchase MS, fuel pump and Injectors.

Borka did you change the stock EFR BOV and Waste gate actuator?

borka 06-17-2019 02:54 PM


Originally Posted by IMSTuner (Post 1538935)
Yeah I was talk to Lars regarding MK setup so I don't have to fab the down pipe and lines. I currently have a Kraken T25 manifold and down pipe that I will off load since the outlet adapter and downpipe would be useless to me. I still need to purchase MS, fuel pump and Injectors.

Borka did you change the stock EFR BOV and Waste gate actuator?

Nope, I'm running the turbo exactly as it came from Gavin. With medium boost actuator.

Wastegate only I get 9-10 psi. Then use ebc to crank it to 17 psi.

Bov whistles a bit during part throttle cruising, a bit annoying, but I got used to it.

ridethecliche 06-17-2019 11:22 PM

Holy hell....

At this price I kinda wish I'd gone with the kraken efr setup instead of the T25. I would have considered selling my 2871 and upgrading to a 6278. Oh well. I guess I actually have to drive my car now lol.

Looking forward to seeing what you make on this setup now.

Borka, how's your ish been holding up?

borka 06-18-2019 09:23 AM


Originally Posted by ridethecliche (Post 1539007)
Holy hell....

At this price I kinda wish I'd gone with the kraken efr setup instead of the T25. I would have considered selling my 2871 and upgrading to a 6278. Oh well. I guess I actually have to drive my car now lol.

Looking forward to seeing what you make on this setup now.

Borka, how's your ish been holding up?

All good here, this car still makes me giggle when I push the happy pedal down at 300hp.

Car is solid, Besides blowing up my 5 speed and upgrading to 6spd and 3.6 torsen.

Oh and somehow I managed to strip the oil pan oil drain threads. So that's the next fun project to figure out.


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