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Old 05-25-2011, 10:47 AM   #1051
Phatron
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i read it as..."i was playing with matchbot" "matchbot results show better efficiency below 30psi"
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Old 05-25-2011, 11:09 AM   #1052
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understandable by the way it was worded. Forgive me, im just learning the proper way to read and plot a compressor map. Ultimately, im just a little confused as to why there hasnt been more enthusiasm to get some 8374 testing done. am i wrong in thinking this thing will outspool a 35 and flow close to a 40?
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Old 05-25-2011, 11:17 AM   #1053
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seeing as how the 7670 didnt outspool the gtx30...i dont think the 8374 will outspool a gtx35....but again..they are so damn close its gonna come down to the setup and tune.

very few people are gonna up and throw a 75 lbm turbo on their car....subie folk still think gt30's are too laggy.
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Old 05-25-2011, 02:09 PM   #1054
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Quote:
Originally Posted by Phatron View Post
subie folk still think gt30's are too laggy.
weak!

i feel like the mindset we have come to embrace in regards to the relationship between lb/min and spool can almost be thrown out the window. the 7670 being a perfect example, being a ~65lb/min (im rounding up for arguments sake) is in league with the dom 5, fp red, 35r, etc. and it was only ~200rpm behind the 3076 and thats having a 10mm LARGER turbine wheel than the gt3076 (assuming the information on garretts site is inducer size). the efr series has to induce a completely different thought process into turbo sizing for the general public. if an 8374 spools like a 35r (which on the limted testing ive seen on k series, it out spooled the 35r, which i realize have a much higher ve than us)im sold. thats just to monstrous of a power jump for minimal spool sacrifice. again though, id really like someone elses input (like yours phatron) to go over and deem my logic as sound...er sound enough...
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Old 05-25-2011, 02:16 PM   #1055
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why does it have to induce a completely different thought process? the gtx3076 is 65lbm turbo too....and the efr will the larger turbine wheel spool'd slower...but made more power. whats new about that?

so both 65 lbm...within 200rpm spool and within 10-15whp....

imo theres no confusing or new results that require any different thinking.
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Old 05-25-2011, 02:24 PM   #1056
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i completely forgot about the gtx series i was basing everything off the standard gt series my bad.
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Old 05-25-2011, 02:29 PM   #1057
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if our cars liked 8-9000 rpm a little better a 30r wouldn't be considered laggy. (well i don't consider them laggy anyway... but a 35r wouldn't be considered laggy either)

but they shake themselves apart up there
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Old 05-25-2011, 05:53 PM   #1058
Bariga
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who said our cars dont like high rpm?
its not the cars its the users
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Old 05-25-2011, 06:22 PM   #1059
john 1badSTI
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^^^bingo it all comes down to how the motor is assembled,attention to detail and the set-up to allow it to rev to 8500-9000. Like I have said before a lot of the engines that don't last up top are due to too aggressive of a tune.
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Old 05-25-2011, 06:48 PM   #1060
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Is the spill valve not a reality? I guess I don't see why people would have to buy the high boost canister if the electronic spill valve works as advertised. Did I miss something? (I admit I miss a lot...)

Having reread the documentation, it appears the spill valve doesn't play as potent a role as it could have.

Last edited by WRX_hatch; 05-25-2011 at 07:01 PM.
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Old 05-27-2011, 01:11 PM   #1061
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Quote:
Originally Posted by WRX_hatch View Post
Is the spill valve not a reality? I guess I don't see why people would have to buy the high boost canister if the electronic spill valve works as advertised. Did I miss something? (I admit I miss a lot...)

Having reread the documentation, it appears the spill valve doesn't play as potent a role as it could have.
exhaust pressure > spring pressure = wg flapper blows open
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Old 06-18-2011, 06:31 PM   #1062
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Looks like Indy will be using EFR turbos in the future:

http://www.prnewswire.com/news-relea...122724203.html
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Old 06-18-2011, 07:47 PM   #1063
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Quote:
Originally Posted by LittleBlueGT View Post
Looks like Indy will be using EFR turbos in the future:

http://www.prnewswire.com/news-relea...122724203.html
Thats assuming they can build and ship them....

(waiting, sometimes not so patiently as others...lol)
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Old 06-18-2011, 07:56 PM   #1064
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Quote:
Originally Posted by thefoos View Post
Thats assuming they can build and ship them....

(waiting, sometimes not so patiently as others...lol)
you me, and at least ten others i know, haha...
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Old 06-18-2011, 08:02 PM   #1065
slava from goshen
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Quote:
Originally Posted by thefoos

Thats assuming they can build and ship them....

(waiting, sometimes not so patiently as others...lol)
I want one....I'll wait untill you get yours and running. Lol hopefully it will be soon.
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Old 06-18-2011, 08:05 PM   #1066
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Quote:
Originally Posted by sumfoo1
if our cars liked 8-9000 rpm a little better a 30r wouldn't be considered laggy. (well i don't consider them laggy anyway... but a 35r wouldn't be considered laggy either)

but they shake themselves apart up there
Maybe I'll attempt another k20 project in the future I need a lottery lol
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Old 06-20-2011, 10:04 PM   #1067
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Quote:
Originally Posted by thefoos View Post
Thats assuming they can build and ship them....

(waiting, sometimes not so patiently as others...lol)
you know they had to change foundries, right?
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Old 06-20-2011, 10:09 PM   #1068
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^ this is something I am unaware of - can you explain?
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Old 06-20-2011, 10:12 PM   #1069
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Same thin Raffi told me today. The old foundry couldn't produce the housings in quantity so they got fired ==> new foundry
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Old 06-20-2011, 10:13 PM   #1070
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We have 4 on order currently. 2 9180's for one car we are building
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Old 06-20-2011, 10:18 PM   #1071
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Yep, bunch of cracked turbines and be said eff youuuuuu we're going elsewhere
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Old 06-21-2011, 01:51 AM   #1072
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A bunch of cracked turbines?
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Old 06-21-2011, 10:05 PM   #1073
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I never heard that. I just heard that they couldn't keep up with the demand...obviously.
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Old 06-21-2011, 10:39 PM   #1074
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Ohh I read somewhere ( probably a forum so could be bs) that the ts housing castings had flaws in the casting and could crack.

Which makes sense to me, I mean how many iwg twinscrolls have you seen ? And that's the most complex casting they have.
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Old 06-21-2011, 11:04 PM   #1075
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For a minute there I thought y'all were talking AVO and their twin scroll turbos.

Apparently, twin scroll housings are hard. I'm starting to see why they're so rare.
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