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12-12-2010, 05:19 PM | #1201 | |
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That specific turbo on the link is a great price, but no reason why we couldn't match it. Depending on turbine A/R that is. Email me whenever you're ready to pull the trigger or if you have any questions. [email protected]
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12-13-2010, 10:14 AM | #1202 | |
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Thanks guys, Micah Last edited by Homemade WRX; 12-13-2010 at 10:24 AM. |
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12-13-2010, 11:52 AM | #1203 | |
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Would love to see some big boost numbers (35-40 psi) on a built 2.5 before i buy my next turbo but I don't see that happening. |
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12-13-2010, 01:03 PM | #1204 |
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Yeah, well I have my questions about a new product as well and for an average Joe, $2,300 in a turbo isn't exactly chump change. Especially when I can get the same sized holset (flow rate, billet wheel, inconel turbine wheel, VGT, etc) for free. Perks of the job I guess.
I guess it really is the competition to the 42R...? Same mass flow rates (more or less). It's downside is sheer size/mass. Last edited by Homemade WRX; 12-13-2010 at 01:42 PM. |
12-14-2010, 03:28 AM | #1205 |
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I would think the EFR series (91-80 sounds like EFR and 91-79 sounds like the regular BW) should all be noticebly lighter because of their stainless (thinner walls) exhaust housings.
Or had you forgotten about that nice feature? |
12-14-2010, 04:12 AM | #1206 | |||
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Not sure if anyone's posted this. It has more detailed info of features.
Good article by Eric Hsu of MotoIQ.com: BorgWarner EFR Turbo Feature Set Notice how the compressor recirculation valve (CRV) is not composite but looks to be aluminum. Quote:
All three sizes of compressor housings: Quote:
Quote:
Last edited by methaddict; 12-14-2010 at 04:34 AM. |
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12-14-2010, 08:33 AM | #1207 |
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I was saying the mass of the HE551VE...she's a chunky girl, hence my questioning the mass of this. You know we engineers make matrices on a points scale for options on builds
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12-14-2010, 12:05 PM | #1208 |
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Micah, everyone needs to go hogging now and then.
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12-14-2010, 01:30 PM | #1209 |
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not what I meant but...to each their own
seriously, picking up the he551ve at work, that think feels like it's about 70 lbs. Need to go grab one and slap it on a scale. Any idea when Borg will have their sizing calculator out for this? I'm just curious to see theirs |
12-14-2010, 01:56 PM | #1210 | |
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Quote:
http://www.turbodriven.com/files/pdf...alog_SMALL.pdf |
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12-14-2010, 02:21 PM | #1211 |
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sizing, as in flow sizing in relation to the engine. Yes, it is easy enough to get rough numbers...
In Eric Hsu's blog...on of them on the EFRs he wrote 'Check back on BorgWarner's EFR site in the near future for an extremely in depth turbo sizing app. You forum nerds are going to have plenty to argue about when that's released.' I'm just curious to see how it compares to the ones at work and it's another toy to play around with. But in this case, I won't have to write the map out for islands...Borg will have already done all that work I do wonder how the brittle titanium-aluminide turbine wheels will handle the percussion and shock waves from antilag and two steps...I really don't want to have to squeeze a bottle to launch on a big turbo. Last edited by Homemade WRX; 12-14-2010 at 02:55 PM. |
12-14-2010, 03:02 PM | #1212 | |
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http://www.turbodriven.com/en/perfor.../matchbot.aspx btw, i emailed raffi@full-race and they dont have weight yet. "rough shipping weight" is in the 30# range. he is going to email me the actual weights when they get them. |
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12-14-2010, 03:19 PM | #1213 |
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Sweet on the weight (though ballparked) and sweet on the link...I guess I missed it when browsing the site last week.
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12-14-2010, 03:35 PM | #1214 |
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As an engineer this is by far the biggest selling point of these turbos i have seen yet.
Truly "engineered for racing"......and for anyone running timeattack or any racing circuit this picture should make your eyes pop and make your checkbook open up....the pricepoint of these shouldnt even be a consideration if high temp/high stress racing situations are the purpose of your car. |
12-14-2010, 04:45 PM | #1215 | |
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12-14-2010, 04:55 PM | #1216 |
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iirc that bpv is a special cosworth piece made for the efr. stock efr valves are composite |
12-14-2010, 05:00 PM | #1217 |
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12-14-2010, 05:09 PM | #1218 |
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I am sure it could be machined out pretty easily. Could probably just copy the one that comes on them.
methaddict, what are those bearings comparing? The new ones vs some other turbo or something? |
12-14-2010, 05:09 PM | #1219 |
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I am sure it could be machined out pretty easily. Could probably just copy the one that comes on them.
methaddict, what are those bearings comparing? The new ones vs some other turbo or something? |
12-14-2010, 05:18 PM | #1220 |
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im guessing the bearing cartridge on the 8374/9180 vs. a gt35r.
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12-14-2010, 05:27 PM | #1221 | |
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BorgWarner EFR Turbo Feature Set "As an example, a BW EFR8391 is 16mm longer than a GT40R. This probably isn't going to be a problem with a longitudinal engine configuration, but in a transverse application with A/C or power steering, this is going to make things a bit tight." "You didn't know that Brockstar was a hand model too, huh? On the bottom you have the most common ball bearing cage on the market today (brand G). On top in the EFR B2 bearing cage. Notice the dual piston ring grooves on both the turbine shaft and dynamic seal. Now there's a good chance your turbo won't get polluted blow by gasses even if your engine builder sucks." Most of us are making the assumption that the GT40 is referenced above the bearing picture......and the "comparison bearing" is referred to as "brand G" that its a garrett gt35/40 bearing.... |
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12-14-2010, 05:35 PM | #1222 |
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Oops missed that link.
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12-14-2010, 06:08 PM | #1223 | |
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12-14-2010, 06:49 PM | #1224 |
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Royal failure on posting pics raffi.. Haha..
Last edited by raffi@full-race; 12-14-2010 at 07:11 PM. |
12-14-2010, 06:53 PM | #1225 |
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why did BW put the bpv provision on the compressor housing? is this for some production model, or for some other use on a diesel app?
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