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Old 05-19-2013, 10:39 AM   #376
WhiteBgeye02
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well im glad you are more knowledgable than me! I always love learning this stuff! The pump will get replaced either way with one of the big ones. if my vf37 lasts the summer of heavy autox then ill be happy. im running it to 25psi for a few thousand rpms to help me keep up with the ej25 engines in the same class. Thanks for the help!
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Old 05-30-2013, 04:45 PM   #377
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Geoff will the new v-band housings fit the tial flanges?
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Old 06-11-2013, 04:40 PM   #378
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Quote:
Originally Posted by reid-o View Post
Geoff will the new v-band housings fit the tial flanges?
yes, same flanges are used
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Old 06-11-2013, 05:16 PM   #379
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Is this turbo ever coming out?
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Old 06-11-2013, 05:24 PM   #380
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we have a few of the EFR's in stock right now, but the 7163 is still a month or so out
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Old 06-12-2013, 02:24 AM   #381
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Whats the flow rating of the new 7163 thats set to come out in a month compared to the beta 7163 that the OP has? Also im guessing it will be slightly laggier too?

Sorry if this has already been posted but are the slim vband ewg housings out yet for these? and what will be the size choices for the single scroll ewg vband exhaust housings.
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Old 06-12-2013, 03:27 AM   #382
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Quote:
Originally Posted by Full-Race Geoff View Post

yes, same flanges are used
But a dp setup for a gtx tial or pt vband will still need to be modified due to the length of the EFrs right?
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Old 06-12-2013, 05:33 AM   #383
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How does the power and spool compare to something like a Blouch Dom1.5xtr?
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Old 06-12-2013, 08:15 AM   #384
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Quote:
Originally Posted by CodeRed30 View Post
How does the power and spool compare to something like a Blouch Dom1.5xtr?
That's the big ? I have too. I'm going to wait till someone posts results on this before I decide to swap out my 1.5xtr
I will not settle for anything laggier then what I have and the prototype 7163 seems to spool as fast with more top end. But now they say the soon to be released unit will make a lot more power but as physics will dictate it will probable spool slower also
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Old 06-13-2013, 11:42 PM   #385
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Originally Posted by NA STI View Post
Whats the flow rating of the new 7163 thats set to come out in a month compared to the beta 7163 that the OP has? Also im guessing it will be slightly laggier too?
the production 7163 is rated at approx 60lb/min max flow rate. all data i have seen shows there was no spool penalty. The wheel sizes did not change, only a few minor details on the blade shape

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Originally Posted by NA STI View Post
Sorry if this has already been posted but are the slim vband ewg housings out yet for these? and what will be the size choices for the single scroll ewg vband exhaust housings.
vband housings dont come out for a few more months, attached are a couple photos from our booth last year

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Originally Posted by Phatron View Post
But a dp setup for a gtx tial or pt vband will still need to be modified due to the length of the EFrs right?
the turbine housing geometries are very close however I can not speak for other companies up pipes/downpipe setups.. whether an existing up pipe or dp would stay the same or not hard to now without trying. Every setup is different and the wider bearing span + larger compressor housing of the EFR turbo may or may not fit somebodys custom vband gt kits.

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Originally Posted by bilt2run View Post
That's the big ? I have too. I'm going to wait till someone posts results on this before I decide to swap out my 1.5xtr
I will not settle for anything laggier then what I have and the prototype 7163 seems to spool as fast with more top end. But now they say the soon to be released unit will make a lot more power but as physics will dictate it will probable spool slower also
i have no experience with the turbo you mention, but in all honesty it is hard to imagine any turbo from any company keeping up with these things, nothing to slight blouch or their stock location bolt on turbos - this is just a different approach with a completely different rotor pair
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Old 06-14-2013, 12:13 AM   #386
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Quote:
Originally Posted by Phatron View Post
But a dp setup for a gtx tial or pt vband will still need to be modified due to the length of the EFrs right?
I think the new housings don't have the Westgate integrated. I'm sure it would require adjustment.
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Old 06-16-2013, 05:03 PM   #387
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Quote:
Originally Posted by Full-Race Geoff View Post
yes - the 7163 is identical outer dimensions as 6758 and 6258



"end of summer" is the current eta for 7163. in borgwarner time they are tricky becuase it could be the end of summer .. of 2017




i think that is possible, but would be a lot easier and safer to do with the 8374 twinscroll! thats what im running on my built 2.0L evo for 450whp on 91 octane and love it



the 7163 compressor map (not publically released yet) flows ~60lb/min at full tilt... this thing packs a big punch in small package and able to do it in stock location is a huge bonus (especially for the Cali crowd who can not go rotated for fear of impound) FYI: paul's 7163 in this thread was a very early prototype, one of 4 evolutions, and only capable of ~51.5lb/min at full tilt. he was dynoing with stock TMIC, cat and 2.5" exhaust in place, more room to go for certain
Same dimensions but 11lb/minute more Well god damn. I have a 6758 paired with a 2.0 on my Audi, and it's great. But like you have mentioned I think it's too small for my STi... Looks like I'll be in line for a 7163...
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Old 06-17-2013, 10:35 AM   #388
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Quote:
Originally Posted by Full-Race Geoff View Post
the production 7163 is rated at approx 60lb/min max flow rate. all data i have seen shows there was no spool penalty.
Yeah... That's awesome. I'm really looking forward to seeing what this turbo can do. I think it would be the perfect street turbo.
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Old 06-17-2013, 10:57 AM   #389
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I have a 6758 paired with a 2.0 on my Audi, and it's great. But like you have mentioned I think it's too small for my STi... Looks like I'll be in line for a 7163...
dont underestimate that 6258 and 6758! the 7163 will spool later than both of them due to the larger rotor's inertia ... if you dont need the extra topend or can benefit from the smaller rotors they are outstanding
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Old 06-17-2013, 12:06 PM   #390
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are there any links for this on the web? this is still being tested correct? haha nm.
What does the 6258 compare to in size a 20g?

Last edited by BroBroBroBroBro; 06-17-2013 at 12:09 PM. Reason: moron
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Old 06-17-2013, 01:20 PM   #391
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Isnt the 7163 the only one with the special turbine wheel design "mixed flow" or whatever? it seems like the 7163 spools faster or just as fast as the 6758 from what iv seen from the OP dyno graph.
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Old 06-17-2013, 03:33 PM   #392
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Originally Posted by BroBroBroBroBro View Post
What does the 6258 compare to in size a 20g?
6258 spools faster than stock and makes more power, case in point: jager racing, 100% stock STI engine, EFR 6258: https://www.facebook.com/photo.php?f...type=1&theater

and last weekend, #1 overall event champs @ redline time attack: https://www.facebook.com/photo.php?f...type=1&theater

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Originally Posted by NA STI View Post
Isnt the 7163 the only one with the special turbine wheel design "mixed flow" or whatever? it seems like the 7163 spools faster or just as fast as the 6758 from what iv seen from the OP dyno graph.
correct the 7163 uses a mixed flow turbine wheel, but there is no way to get around the increased inertia of the larger rotor pair
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Old 06-17-2013, 05:01 PM   #393
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Quote:
Originally Posted by Full-Race Geoff View Post
vband housings dont come out for a few more months, attached are a couple photos from our booth last year
When the v-band inlet rolls, will you guys by updating the "stock location" offering? I'll be back in the EFR lineup with a 6258 at that point...
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Old 06-17-2013, 05:09 PM   #394
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You guys see this dyno of a VF39 on E85 vs the 6258 on E85?

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Old 06-17-2013, 05:23 PM   #395
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Indeed I did, that dyno looks killer. If the 6258 can do that, then 7163 should have a lot of people's attention.

I'd like to see an EFR6258 vs. GTX2867r comparo. Too bad they aren't flange compatible, that would be quite an interesting back to back. I don't keep up on RTA, but I imagine the street class will be the battleground for that comparison, as the inducers are both just under the 50mm limit in the rules.

It also tells me I should have gone to the 6258 due to my fueling being topped out at ~420-430 dynojet VD on my 6758. What can I say but that the 6758 exceeded my expectations.

Last edited by Concillian; 06-17-2013 at 05:29 PM.
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Old 06-17-2013, 06:08 PM   #396
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[quote=Full-Race Geoff;40035077]6258 spools faster than stock and makes more power, case in point: jager racing, 100% stock STI engine, EFR 6258: https://www.facebook.com/photo.php?f...type=1&theater

and last weekend, #1 overall event champs @ redline time attack: https://www.facebook.com/photo.php?f...type=1&theater


just saw this on my facebook feed thats wicked...
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Old 06-17-2013, 06:26 PM   #397
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posted half a page up by Geoff himself! this is really a dilema for me. 6258 or 6758..... ej207 wants to be feed more air!!!
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Old 06-18-2013, 10:55 AM   #398
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The 1.8 in my miata loves the 6758 so far. Had to trouble shoot some things on the dyno so I never touched the boost control, running straight off the 6psi iwga it made like 250hp and 212 ftlbs (dynapac), It did creep to 10psi for peak power and taper off on the 6 psi iwga. You need to watch for v-band clamp orientation if you run the actuator I have because the tip of the shaft can hit the clamp bolt. I dont think you have the wastegate flow to be able to run the 6758 on an ej257 under 12 psi so even as low as it could go you'd still be touching 300hp on a dynojet. I'd run the 6758 on the 2 liter, there's pretty much no downside besides 50-100 rpm of spool.
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Old 06-18-2013, 01:28 PM   #399
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Quote:
Originally Posted by WhiteBgeye02 View Post
posted half a page up by Geoff himself! this is really a dilema for me. 6258 or 6758..... ej207 wants to be feed more air!!!
You're call. Looks like the 6258 will top out right near ID1000s. so 350-375 airboy / 400-430 dynojet on E85. 6758 will give up some spool, and it should push another 30-40 over the 6258 when maxed.

IMO, I was pretty annoyed with low end on my EJ205, but with the 207 and shorter ratio transmission, the 6758 is plenty responsive and I have no issue with lag. even going slow in 2nd, the car is pretty responsive with the short gearing and spool of the 6758. If you have a 3.9 or 3.7 5MT and are highly annoyed by lag, then go 6258. JDM 6 speed or 04-05 USDM 6 speed or 4.11 or 4.44 5MT, then 6758, if not wait for the 7163. Short gearing makes up for a lot in terms of turbo responsiveness, so I try to look at the whole picture.
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Old 06-19-2013, 05:02 PM   #400
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Quote:
Originally Posted by LittleBlueGT View Post
You guys see this dyno of a VF39 on E85 vs the 6258 on E85?

^I didn't look at the setup, but those #'s seem a bit inflated to me...Solid comparison though...

Quote:
Originally Posted by Concillian View Post
Indeed I did, that dyno looks killer. If the 6258 can do that, then 7163 should have a lot of people's attention.

I'd like to see an EFR6258 vs. GTX2867r comparo. Too bad they aren't flange compatible, that would be quite an interesting back to back. I don't keep up on RTA, but I imagine the street class will be the battleground for that comparison, as the inducers are both just under the 50mm limit in the rules.

It also tells me I should have gone to the 6258 due to my fueling being topped out at ~420-430 dynojet VD on my 6758. What can I say but that the 6758 exceeded my expectations.
Quote:
Originally Posted by Concillian View Post
You're call. Looks like the 6258 will top out right near ID1000s. so 350-375 airboy / 400-430 dynojet on E85. 6758 will give up some spool, and it should push another 30-40 over the 6258 when maxed.

IMO, I was pretty annoyed with low end on my EJ205, but with the 207 and shorter ratio transmission, the 6758 is plenty responsive and I have no issue with lag. even going slow in 2nd, the car is pretty responsive with the short gearing and spool of the 6758. If you have a 3.9 or 3.7 5MT and are highly annoyed by lag, then go 6258. JDM 6 speed or 04-05 USDM 6 speed or 4.11 or 4.44 5MT, then 6758, if not wait for the 7163. Short gearing makes up for a lot in terms of turbo responsiveness, so I try to look at the whole picture.
I agree with your statements.

After experiencing as many setups as I have (not just my own, but over 200 that I've tuned), I have to say that my choice would be the 6258 on a 2.0L. Add a v-band inlet, and its a no brainer. Match it with a 4.444 final, and you have a ripping street car. You aren't going to win any bench races, but it sure will be fun...Since the turbo appears to be on its way out on my car, I might be putting my money where my mouth is sooner than planned.

6758 or bigger on a 2.5...
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