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Old 09-15-2011, 11:08 AM   #2501
Spike_916
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Quote:
Originally Posted by wheatpaste View Post
Check out Cam's threads. That may be who Raffi is talking about. He tested multiple setups with the 83-75, 88-75, and 91-79.

Here's one http://forums.nasioc.com/forums/show...1499487&page=3
After looking at that thread, OMG the EFR is insane. It also helped me confirm I made a good choice on going with the EFR 83-74 TS EWG instead of the GTX35 TS. I am looking for quick spool and power and this seems to be the ticket. Looking at the graphs it looks like the 83-75 spools around 5700-5900rpm while the 91-79 full spools around 6100-6300rpm. So there is a little difference in spool time (about 400rpm). The power different is around 28hp and 20-28tq difference. Thats a good difference in WHP between the two. Anyone know the cost difference between the two and if it will fit in the same location at the EFR 83-75? Maybe in the future when I get my car back, break it in, and get use to it, the 91-79 would be a good bolt and play upgrade (with tuning). That's if when I get my car back turbo's are out and hyper drives are in and my car will be outdated/classic.
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Old 09-15-2011, 11:20 AM   #2502
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Originally Posted by Spike_916 View Post
It also helped me confirm I made a good choice on going with the EFR 83-74 TS EWG instead of the GTX35 TS.
you have comparison data of a gtx35 ts on a subaru? link?
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Old 09-15-2011, 11:41 AM   #2503
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Quote:
Originally Posted by Spike_916 View Post
After looking at that thread, OMG the EFR is insane. It also helped me confirm I made a good choice on going with the EFR 83-74 TS EWG instead of the GTX35 TS. I am looking for quick spool and power and this seems to be the ticket. Looking at the graphs it looks like the 83-75 spools around 5700-5900rpm while the 91-79 full spools around 6100-6300rpm. So there is a little difference in spool time (about 400rpm). The power different is around 28hp and 20-28tq difference. Thats a good difference in WHP between the two. Anyone know the cost difference between the two and if it will fit in the same location at the EFR 83-75? Maybe in the future when I get my car back, break it in, and get use to it, the 91-79 would be a good bolt and play upgrade (with tuning). That's if when I get my car back turbo's are out and hyper drives are in and my car will be outdated/classic.
Not sure I fully understand you, but the turbos that Cam tested are not EFRs, they are the older model 300SX series turbos.
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Old 09-15-2011, 11:54 AM   #2504
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^^^ That is correct. Cameron was running Journal Bearing 300SX series turbos with different exhaust housing and wheels.

Martin,

I remember you had/have a EFR8374 Single Scroll, right? You finally got your finger out and put it on the car? Was hoping to see something from you as you have a proper engine to spin it

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Old 09-15-2011, 11:54 AM   #2505
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you have comparison data of a gtx35 ts on a subaru? link?
What I meant by that post is I have be discouraged from getting the EFR. I have heard "It's a new turbo and it hasn't been tested yet so you should avoid it for now", "You wont be able to order or get the turbo because of issues", "You wont see the turbo until 2012", etc.

Wheatpaste, sorry I thought he referenced the EFR because of his posts (seen below). I am at work and I have to skim a lot.

"I settled on an 83-75 with .91 a/r and an 88-75 with 1.00 a/r. I'll be testing the 83-75 with both hotsides and the 88-75 with both hotsides.
All of it will be tuned on the stock ecu with an 86mm MAF." - Post #116

"Couple more of just the 83-75 with .91 a/r." - Post #127

"Put a 91-79 on and made a little more..." - Post #150
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Old 09-15-2011, 12:10 PM   #2506
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Im so lost man. Are we speaking the same language?

Quote:
Originally Posted by Spike_916 View Post
What I meant by that post is I have be discouraged from getting the EFR. I have heard "It's a new turbo and it hasn't been tested yet so you should avoid it for now", "You wont be able to order or get the turbo because of issues", "You wont see the turbo until 2012", etc.
That is not what you said at all. You said you made a good choice going with the EFR....

Quote:
Originally Posted by Spike_916 View Post
After looking at that thread, OMG the EFR is insane. It also helped me confirm I made a good choice on going with the EFR 83-74 TS EWG instead of the GTX35 TS.

Quote:
Originally Posted by Spike_916 View Post
Wheatpaste, sorry I thought he referenced the EFR because of his posts (seen below). I am at work and I have to skim a lot.

"I settled on an 83-75 with .91 a/r and an 88-75 with 1.00 a/r. I'll be testing the 83-75 with both hotsides and the 88-75 with both hotsides.
All of it will be tuned on the stock ecu with an 86mm MAF." - Post #116

"Couple more of just the 83-75 with .91 a/r." - Post #127

"Put a 91-79 on and made a little more..." - Post #150
none of those are EFR turbos...here are the EFR turbos

http://www.full-race.com/articles/bo...fr-turbos.html
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Old 09-15-2011, 12:21 PM   #2507
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Ron,

It is because you are not using your Online dictionary man..........

Jasper.
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Old 09-15-2011, 12:29 PM   #2508
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i put it in google translate and it still doesnt make sense.
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Old 09-15-2011, 04:03 PM   #2509
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well, then try Urban Dictionary
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Old 09-16-2011, 12:59 AM   #2510
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Quote:
Originally Posted by MartinSTi05
I was told the hotsides were held up because the foundry was having issues fitting an additional 3 scrolls into the hotsides. The decision to go to a penta-scroll design was made late in the design phase as a response to the Garrett quad scroll.

Damn I guess I can't keep it secret any longer lol
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Old 09-16-2011, 08:19 AM   #2511
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WTF is that off of?
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Old 09-16-2011, 08:31 AM   #2512
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Originally Posted by 02RexWI
WTF is that off of?
Hahaha wondered what kinda reaction I would get lol or anyone would know what it is, I use these alot in the marine diesel industry and for some reason you can't find any info on the internet
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Old 09-16-2011, 10:32 AM   #2513
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coolant passages?...


....long term, full-load, steady state, thermal management with no outside airflow...
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Old 09-16-2011, 10:44 AM   #2514
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^^^ You are correct. Many marine engines which are turbo charged use water cooled turbines for the reasons you mentioned.

Jasper.
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Old 09-16-2011, 10:54 AM   #2515
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Yeah, those passages looked too small in comparison to the center one to be separate scrolls.
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Old 09-16-2011, 11:08 AM   #2516
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Now I want to go to the turbo room and take pictures of the sweet prototypes down there BUUUUUT I'd get in a lot of trouble for that!!
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Old 09-16-2011, 11:37 AM   #2517
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Quote:
Originally Posted by Homemade WRX
Now I want to go to the turbo room and take pictures of the sweet prototypes down there BUUUUUT I'd get in a lot of trouble for that!!
Getting into trouble is underrated....fire away, Peter Parker!

You obviously have strong insider info. On turbo systems. Since we don't have any good EFR Subaru data yet...do you like where BW is going with the EFR lineup? And knowing what you know about Subaru motors...do you think they will work well on them?
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Old 09-16-2011, 12:00 PM   #2518
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I'm just patiently waiting in line like everyone else, put simply

I do like what the EFR offers on paper but any good engineer know's that paper doesn't always translate to real world. What data I've seen and heard, I'm hopeful. I also don't like shoving my shoe in my mouth, so I'll keep it shut for now.

I have this gaping whole infront of my engine waiting for a 9180.
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Old 09-16-2011, 12:00 PM   #2519
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stupid double posts!

Last edited by Homemade WRX; 09-17-2011 at 08:57 AM.
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Old 09-16-2011, 03:56 PM   #2520
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Haha yea coolant passages they just use the same coolant that goes through ttheexhaust manifold and engine but hey it Got the scenario perfect lol
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Old 09-17-2011, 08:32 AM   #2521
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Yeah, but you were a bit too early though! Should have waited till the next 1st of April

Jasper.
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Old 09-17-2011, 10:35 AM   #2522
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right hahaha
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Old 09-17-2011, 10:27 PM   #2523
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Old 09-20-2011, 02:16 PM   #2524
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Wow, 10.6 @ 133.8 and room to go. congrats, that subie is an animal!! the S300SX 8875 was also what i ran for a while on my rb26 its top end power is substantial considering this is only a 63mm inducer
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Old 09-20-2011, 02:38 PM   #2525
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Originally Posted by Full-Race Geoff View Post
Wow, 10.6 @ 133.8 and room to go. congrats, that subie is an animal!! the S300SX 8875 was also what i ran for a while on my rb26 its top end power is substantial considering this is only a 63mm inducer
Geo, you do realize this is the turbo i got from you right?
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