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DIY Turbo Discussion greddy on a 1.8? homebrew kit?

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Old 01-24-2011, 07:13 PM   #21
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Quote:
Originally Posted by PatrickB View Post
seems a bit optimistic, twin scrolls are the **** though.
Yes, it does. I would be happy with 15psi at 3K rpm which from some twin scroll dyno charts I've seen is possible.

Quote:
Originally Posted by viperormiata View Post
Thank god faeflora left us that beautiful post


I'll be running a 6258 or 6758 in the summer. A little update on my hot side and I'll be golden.

I would never in a million years have guessed that a internal waste gate could keep up with a external, let alone be *better.

Yes, this is my only concern. That the IWG will not be able to keep up. I did speak with the full race guys who have held the twin scroll IWG turbos in their hands though. I asked them if there was a lot of material around the IWG if it needed to be ported. They said YES so even if it does creep, hopefully it can be fixed.



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Originally Posted by viperormiata View Post
THIS


In all seriousness though, these things are going to be serious game changers for a lot of people and racing companies. When I read that Sierra Sierra was switching to EFR turbos I was pretty much nutted.

I can't wait to "clean up" and get all my *archaic* turbo stuff sold and go with the future.

I'll more than likely be driving around on 225/50/15 DR's so I will enjoy the boost hit.

Are you going to get a twinscroll?
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Old 01-24-2011, 07:32 PM   #22
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Originally Posted by Faeflora View Post
Yes, it does. I would be happy with 15psi at 3K rpm which from some twin scroll dyno charts I've seen is possible.
I agree. If the turbo is sized correctly for your motor size/power goals/etc...you should see some nice gains in spool, especially with your bigger motor.

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Originally Posted by Faeflora View Post
Yes, this is my only concern. That the IWG will not be able to keep up. I did speak with the full race guys who have held the twin scroll IWG turbos in their hands though. I asked them if there was a lot of material around the IWG if it needed to be ported. They said YES so even if it does creep, hopefully it can be fixed.
Yeah, I was thinking the same thing. But after reading that chart and info that was posted on the Full-Race face book page, I think I am pretty much sold on it. The turbo they tested has a 42mm internal....my external is only 35mm

With the integrated bov and internal waste gate, that is two less things that need lines and two less things that can potentially be a nuisance. My waste gate is in the same spot as yours...you know what a pain the dick it is to work with it.


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Originally Posted by Faeflora View Post
Are you going to get a twinscroll?
Not at this point in time. I don't see the need. Would I look to? Yes. But the twin scroll turbos are designed to exceed 600 horsepower and that is just way above what I am looking for this year.

The B series frames are good for over 400 and that is plenty for me. I just want to build my car for consistent passes in the 12.5-12.0 range and daily duty. Will it be perfect? Who knows, maybe not. But I still want to find out and see.

I was going to slap on a 2871 and call it a day, but then I started reading about the EFRs. It would cost me over a grand to buy a new 2871. If I sold my bov and waste gate I could have the difference in money for the EFR.
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Old 01-24-2011, 07:47 PM   #23
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If you know the story of the princess and the pea, that is what our ewg is. I actually have to remove the damn wg pipe to take my turbo out of the car.

Yes the size of the ewg is a big selling point, from a tehorethtical I mean theoretical perspective. The tial 3xmm gate I have now is indeed frikken smaller.

Oh. Only other consideration is the size of the darn thing. The 7670 is 18fucking inches from compressor inlet to turbine outlet flange!!!!!!!!! That plus bov+wg can = BIG ******* BASTARD.

I may have to trim the rear engine bay frame. This time no sawzall tho. I will use a sledgehammer.
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Old 01-24-2011, 09:44 PM   #24
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Make me want to sell my HTA3582R for one.
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Old 01-24-2011, 10:10 PM   #25
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Originally Posted by miatamike203 View Post
Make me want to sell my HTA3582R for one.
I think it would be worth it, I am selling my billet 5857 for one.
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Old 01-24-2011, 10:29 PM   #26
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I think it would be worth it, I am selling my billet 5857 for one.
Wut? Which model and type are you thinking of?
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Old 01-24-2011, 11:54 PM   #27
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My S252 gives me many . It is a crazy turbo!!! At 11psi it pulls and between shifts there is 0 lag. Basically the wastegate stays open! I highly recommend BW. My super 60 was way laggier with a 48AR.
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Old 01-25-2011, 12:03 AM   #28
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Musanovic, any chance we can get a few pictures of your setup with the S252?

How do you like the quality of the turbo? Any issues at all?
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Old 01-25-2011, 03:57 AM   #29
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Quote:
Originally Posted by Faeflora View Post

If you know the story of the princess and the pea, that is what our ewg is. I actually have to remove the damn wg pipe to take my turbo out of the car.
That sucks. I undo two v-band clamps and my turbo is out in about 4 minutes - and the rest of the kit stays in the car, including the downpipe and EWG dump tube.

Quote:
The 7670 is 18fucking inches from compressor inlet to turbine outlet flange!!!!!!!!! .
I'm calling bullshit unless you post a photo of a 7670 with a tape measure next to it. The head flange is only 14-15" long.
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Old 01-25-2011, 11:47 AM   #30
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Originally Posted by Savington View Post
That sucks. I undo two v-band clamps and my turbo is out in about 4 minutes - and the rest of the kit stays in the car, including the downpipe and EWG dump tube.



I'm calling bullshit unless you post a photo of a 7670 with a tape measure next to it. The head flange is only 14-15" long.

How about a technicalish drawing from mama borg:

http://www.treadstoneperformance.com...install-39.pdf

From the PDF:



Look at that ****!!!!

Woops bad math on my part but it is still 14.7 inches!!!!
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Old 01-25-2011, 11:54 AM   #31
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yes turbo does hit hood just a bit. This exhaust housing makes it sit a bit higher.

bad video included that is 10 psi 0 at 4,000 rpm 10 at 4,500.
http://www.youtube.com/watch?v=nbuL632KbOQ
Attached Thumbnails
BorgWarner EFR Turbos-photo_1.jpg   BorgWarner EFR Turbos-photo_2.jpg   BorgWarner EFR Turbos-photo_3.jpg   BorgWarner EFR Turbos-photo_4.jpg  
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Old 01-25-2011, 11:56 AM   #32
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Quote:
Originally Posted by Faeflora View Post
How about a technicalish drawing from mama borg:

http://www.treadstoneperformance.com...install-39.pdf

From the PDF:

[IMG]http://i.imgur.com/FJToS.jpg[IMG]

Look at that ****!!!!

Woops bad math on my part but it is still 14.7 inches!!!!
Umm, from that picture 6.25+4.79=11.04 not 14.7
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Old 01-25-2011, 12:54 PM   #33
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Originally Posted by Savington View Post
That sucks. I undo two v-band clamps and my turbo is out in about 4 minutes - and the rest of the kit stays in the car, including the downpipe and EWG dump tube. .
I think the Absurdflow setups are still in a different category. But as I've learned on this forum, track car =/= street car. If the EFR came with a v-band inlet that would be ****, but completely overkill for most street cars. Especially with the new Inconel studs from TSE Which I will most certainly have.

This is one of the reasons why I want to make a change on the hot side. All the EFR's are 3"(smaller frames) v-band exhaust housings and.................no more bottom mount external waste gate!!!!!! I've got the construction and tear-down process down to a science but I don't want all the extra **** anymore. Especially when my external is smaller than the new internal

Quote:
Originally Posted by musanovic View Post
yes turbo does hit hood just a bit. This exhaust housing makes it sit a bit higher.

bad video included that is 10 psi 0 at 4,000 rpm 10 at 4,500.
Wow, that is nice. If anything, the EFR is supposed to spool faster the the S-series...but that is just awesome.

Thanks for the post. I have a friend who is going for a S256 on hit 1.8t golf, I'll make sure I forward this video to him.
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Old 01-25-2011, 01:03 PM   #34
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Quote:
Originally Posted by 18psi
Quote:
Originally Posted by Faeflora View Post
How about a technicalish drawing from mama borg:

http://www.treadstoneperformance.com...install-39.pdf

From the PDF:

[IMG]http://i.imgur.com/FJToS.jpg[IMG]

Look at that ****!!!!

Woops bad math on my part but it is still 14.7 inches!!!!
Umm, from that picture 6.25+4.79=11.04 not 14.7
******* damnit **** on my ****. Well that sizing is good news.
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Old 01-25-2011, 04:00 PM   #35
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Where can you get these and what type will compare to a gt2554 or gt2560?

Right.. There is no turbo that small.
Also they aren't that cheap: starting at $1400.

Last edited by IHI; 01-25-2011 at 04:28 PM.
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Old 01-25-2011, 04:31 PM   #36
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Quote:
Originally Posted by IHI View Post
Where can you get these and what type will compare to a gt2554 or gt2560?

Right.. There is no turbo that small.
Also they aren't that cheap: starting at $1400.
Compressor:
Inducer: 51mm
Exducer: 69mm

Turbine:
Inducer: 70mm
Exducer: 61mm
43 lbs/min
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Old 01-25-2011, 04:31 PM   #37
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Quote:
Originally Posted by IHI View Post
Where can you get these and what type will compare to a gt2554 or gt2560?

Right.. There is no turbo that small.
Also they aren't that cheap: starting at $1400.
Full-Race is the place to get them. The closest thing to a small frame garrett would be the EFR 6258, and that still blows the 2554, 2560, 2860 and 2871 out the water.

6258 is .64a/r t25 flanged. Full-Race says it's good for 200-440hp

* Compressor Type: Forged-Milled Wheel (FMW) Extended Tip
* Compressor Wheel OD (exducer): 62mm
* Compressor Wheel Inducer: 49.6mm
* Max Flow Rate: 44 lb/min
* Built-in BOV: All EFR compressor housings incorporate an integrated BOV.
* Compressor Housing: 2.5" inlet, 2.0" hose coupler outlet.


You're correct, they are not cheap. But not too much more than a ball bearing garrett and better performance all around. Plus you get the integrated features with the EFR series.
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Old 01-25-2011, 04:33 PM   #38
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Quote:
Originally Posted by viperormiata View Post
Full-Race is the place to get them. You're correct, they are not cheap. But not too much more than a ball bearing garrett and better performance all around.
I could maybe possibly get the S252 for 900.
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Old 01-25-2011, 04:44 PM   #39
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Quote:
Originally Posted by musanovic View Post
I could maybe possibly get the S252 for 900.
No T2 foot print

Hopefully they will have some nice shiz in the 1 series.

EDIT: This would be awesome.

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Old 01-27-2011, 05:15 PM   #40
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efr bearing vs gt bearing!
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