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08-20-2012, 08:26 AM | #51 | |
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08-20-2012, 08:48 AM | #52 |
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Is there any possibility of twin scroll housings for the smaller frame turbos? Not stock-Subaru-mount twin scroll housings, obviously; it would be silly to expect something that niche. It's not a deal breaker by any means - results so far look fantastic as is - but possibly it would be nice icing on the cake.
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08-20-2012, 09:23 AM | #53 |
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These results look great! For that power level the spool is incredible!
How would you expect the results to change if this turbo were run on a FMIC setup? How would you expect the results to change if this turbo was run on a rotated setup? |
08-20-2012, 02:39 PM | #54 |
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+1 twinscroll housings (I understand not OEM ones) for the smaller ones.
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08-20-2012, 02:52 PM | #55 |
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How far off is the retail release?
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08-20-2012, 03:49 PM | #56 |
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Good Stuff. Keep us updated? Group Buy?
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08-20-2012, 04:03 PM | #57 |
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Certainly nice numbers but..I think there are some 1.5xtr "e85" charts that look very similar to these,maybe a bit more taper, with same type mods, Correct me if im wrong...
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08-20-2012, 09:46 PM | #58 | |||||||
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we'll have the 7670 EFR available in rotated single scroll OR rotated twinscroll, but it can not fit stock location this setup is not for everyone. If you want to make big power our rotated kits are available in singlescroll (similar to stock location just rotated) OR twinscroll - both with B2 EFR turbos. If the 7163 is too small but you want to stay stock location i will say its not possible to fit the hulking B2 here (must rotate it) Quote:
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some of the available subie FMIC/charge piping kits have large diameter, long convoluted piping (spaghetti?) which can add a LOT lag and gain nil on the top end... if you are going FMIC keep the pipes as short as is possible otherwise stay TMIC! Quote:
not sure yet, but they will have some new stuff on display at SEMA... |
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08-20-2012, 10:43 PM | #59 | |||
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This new BW turbo looks very promising, but it's hard for me to compare to other stock location turbo's due to the fact that you need a new uppipe and downpipe to be able to run it. If someone already has an uppipe and downpipe (as many people do who are looking to upgrade their turbo), then it is getting dangerously close to rotated territory.
If this turbo meets your power goal, and spool is your absolute primary concern (and you're willing to spend the money to get it) then this might be perfect. If budget/simplicity are your main objectives, then there seems to be similarly performing turbo's that would work with the stock up/down pipe. If you want big power, then you're probably looking rotated. This turbo kind of seems to fit into a middle ground. Maybe it will be perfect for some (or possibly many) people. Quote:
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08-20-2012, 10:54 PM | #60 |
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based on those charts the efr holds power out better and considering the small 2.5" exhaust its even more promising, time should tell....
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08-20-2012, 11:41 PM | #61 | |
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Also consider that the Topspeed dyno graph had the STD correction factor applied versus the SAE factor on my graph. Typically the STD CF adds about 3% over SAE. The Topspeed car also had a header, which I have found typically adds roughly 10whp/20wtq over the stock exhaust manifold. All in all, the EFR makes more power, has a broader powerband extending all the way to redline and spools the same or better.... I guess that's comparable |
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08-20-2012, 11:58 PM | #62 | |
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This is fine. But then you have to consider it will probably be another $1500 or so for the downpipe and uppipe from Full Race. While I'm sure they are excellent items, it is a large cost to stomach. Especially for someone who already has an aftermarket downpipe and uppipe installed. If you're going to pay $3000 or more, then why not just go rotated for a rotated (possibly twin scroll setup). I guess it all comes down to how much you value spool and how much top end you want. I honestly really want this powerband. I just think it would make more sense to go rotated and leave my options open. Would this turbo fit into a Full Race rotated setup and allow for easy upgrade in the future? |
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08-21-2012, 08:58 AM | #63 | |
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The LHD subaru crowd is lucky, most of our space constrained applications are not nearly as forward compatible as this platform |
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08-21-2012, 10:01 AM | #64 |
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Oh, also, do the B1 frame EFRs (or the 7163 anyway) still have the spot to put a speed sensor in? It doesn't look like the existing B1 size housings do, but then, that's looking at pictures on a web site... for that matter, is the 7163 still using the small frame housing?
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08-21-2012, 10:31 AM | #65 | |
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08-21-2012, 11:15 AM | #66 |
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Hey Paul, good to see some info up on this 7163.
Any chance you can comment on the boost transition, recovery time? Not the boost threshold that you can see in a plot, but what it feels like on the road in 2nd gear at 3500 when you go WOT. Can you really tell the difference between the lighter weight titanium exhaust wheel in drive-ability? To Geoff: I tried calling you a few times, but you are obviously busy. I should (finally) have a 13 STI on order, and I want to know when I can actually physically have one of these complete kits in my hands. Also, is there any way one can have your "1.5" scroll header, and then the appropriate UP to work with the SS B1 frame EFRs? One last question for you: -if we have to wait a while for the 7163 to come out, what are your thoughts on the 6758? I know Perrin did the one test, but the results seem skewed due to a possible TGV issue. Is the 6758 (all things being equal) a turbo that will have a few hundred rpm better boost threshold, but 30 whp or so less potential? I am thinking of the following for a 2013 STI: -stock or possibly aftermarket TMIC -94 octane E10 -your 1.5 scroll system if available -3inch TBE, with possibly a 3.5" HFC, vs a 3" unit -TGV delete -some sort of intake and inlet pipe I have been waiting forever to purchase a car wanting 400 whp and Stage 2ish response, and I even spent a fair bit of time test driving used GTRs and 911s, but I think I kinda want the practicality of a STI. Please tell me I can actually buy one of these kits soon!!!!! plsplsplsplsplspls |
08-21-2012, 12:06 PM | #67 | |
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08-21-2012, 03:57 PM | #68 | |
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Subaru Impreza WRX/STI EJ20/25 T3 Singlescroll Up-Pipe: $448.11 http://www.full-race.com/store/turbo...up-pipe-1.html Subaru STi 3" Downpipe: $1,025.80 http://www.full-race.com/store/downp...-downpipe.html |
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08-21-2012, 04:10 PM | #69 |
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Group buy group buy group buy ))
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08-21-2012, 04:34 PM | #70 |
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+1 this turbo i've decided for my car.
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08-21-2012, 05:25 PM | #71 |
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Interesting read. I think a big deciding factor on this would be cost like others have said. I don't think I would spend 3000 on that. Close to rotated territory. Ill keep looking at this to see the price point
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08-21-2012, 06:33 PM | #72 | |
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08-21-2012, 06:37 PM | #73 | |
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08-21-2012, 06:54 PM | #74 |
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That's amazing... let's see some vids! I bet it sounds like a jet! Careful with all that torque though... As cool as it is now it's gonna need an engine build soon hahaha
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08-21-2012, 08:30 PM | #75 |
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Maybe Jeff at perrin can give us some good ole prototype EFR uppies and Downpipes he was using for his blogs since he's using that cheap ole 304 steel thats on every ebay exhaust
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