New BW EFR Turbo Thread
Nov 13, 2012 | 03:46 PM
#2193
would be interesting to see the trend line form with regards to transient response of the Ti wheels vs. diameter against the steel alloy wheels vs. diameter. I think the spread will widen as the wheel diameter gets larger in favor of the EFR. And if Brock at BW is right about it (which because he's already tested it... he probably is) that WILL be the case.
lolicopters...
Here in these 2 pics are the results I got from Garrett boost advisor, asking for 600hp at the crankshaft. "Mid range" rpm is 5000, "Max power" rpm is 7500, race gas, cool western Washington weather conditions, GTX3071. The left red dot (mid range point) is quite off the map. The map is zoomed which is why you can't see the vert or horiz scales. But the pressure ratio and airflow numbers are given in the accompanying chart.
If you put these same 2 points on a EFR7670 map, the "mid" point is very comfortably on the map at better than 70% efficiency.
If you put these same 2 points on a EFR7670 map, the "mid" point is very comfortably on the map at better than 70% efficiency.
Yep it's kinda funny.
I guess my thought about the charts I posted above is, my "mid" point at 5000 rpm that's in surge territory - fer crum sake this is not exactly lugging the engine... It's a bugger that a turbo significantly smaller than the EFR7670 should be in surge at a point that should be a very useful part of the rev band.
I guess my thought about the charts I posted above is, my "mid" point at 5000 rpm that's in surge territory - fer crum sake this is not exactly lugging the engine... It's a bugger that a turbo significantly smaller than the EFR7670 should be in surge at a point that should be a very useful part of the rev band.
So let's see what turbos the advisor picks out for ernie: Aw bummer there aren't any GTX's on the list!
Let's look at the map for one of these turbos, with the 2 points plotted:
[IMG]
[/IMG]
Man look at that first point way out in left field. RT, it might just be that you can't do what you did with any Garrett turbo
Let's look at the map for one of these turbos, with the 2 points plotted:
[IMG]
[/IMG] Man look at that first point way out in left field. RT, it might just be that you can't do what you did with any Garrett turbo
if you ordered it from full-race expect an update this week
Last edited by Geoff Raicer; Nov 13, 2012 at 03:49 PM.
Nov 13, 2012 | 03:50 PM
#2194
Newbie
Joined: Sep 2011
Posts: 24
Likes: 0
From: Texas
Really wanting to see how much the 9180 is good for.
Nov 13, 2012 | 04:05 PM
#2195
Evolved Member
Joined: Mar 2010
Posts: 715
Likes: 17
From: Welly NZ
I have been consistently objective through the whole thing, and I have wanted to see them do what it looked like they should from the start and am far from eating my words about reliability and supply when it was obviously an issue. I am glad they are a good thing, shame about how long it has been taking to turn them into a viable product
Nov 13, 2012 | 05:37 PM
#2197
i dont know the exact change yet. The 1.45's are slated to be available in june or july and sold as turbine housing only, so it will make sense for guys like you who start with the 1.05
Nov 14, 2012 | 08:23 AM
#2198
What are these more "recent events" that have supported the EFRs? Have more started to show results now on back to back comparisions?
If so, post up the links, let's see what they have managed to do!
Pics of EFR7163 with V-band housing? Will it by chance interchange with a Tial housed GTX3071R?
If so, post up the links, let's see what they have managed to do!
Pics of EFR7163 with V-band housing? Will it by chance interchange with a Tial housed GTX3071R?
Last edited by 03whitegsr; Nov 14, 2012 at 08:41 AM.
Nov 14, 2012 | 08:51 AM
#2199
Newbie
Joined: Sep 2011
Posts: 24
Likes: 0
From: Texas
What are these more "recent events" that have supported the EFRs? Have more started to show results now on back to back comparisions?
If so, post up the links, let's see what they have managed to do!
Pics of EFR7163 with V-band housing? Will it by chance interchange with a Tial housed GTX3071R?
If so, post up the links, let's see what they have managed to do!
Pics of EFR7163 with V-band housing? Will it by chance interchange with a Tial housed GTX3071R?
Nov 14, 2012 | 09:12 AM
#2200
Newbie
Joined: Oct 2011
Posts: 25
Likes: 0
From: Israel
if I order it from a distributer of full-race what does that mean?
I have not received my turbo yet
Last edited by Talx; Nov 14, 2012 at 09:16 AM.
Nov 14, 2012 | 04:19 PM
#2202
Newbie
Joined: Jun 2010
Posts: 10
Likes: 0
From: Australia
Stock evo 2L motor. only internal change is the HKS cams. Before the tune I was hoping we could get it to 320-330kw on 30psi but after the tune it looks like we might make it to 360kw on 30psi when the new motor goes in.
Nov 14, 2012 | 07:04 PM
#2203
-FXMD switches to EFR 9180 turbo, pinches WG hose, pops motor, throws in a new motor on the same turbo - one flyer lap and sets a new record, little more info Here not a back to back like your asking for, but certainly a vote of confidence
-indycar 2012 wrapped up, not one single EFR turbo failure during the entire season (every car in the field ran an EFR, or two)
- I spoke with Dario Franchitti (multiple winner of indy 500) and asked how he likes the twinscroll 9180 on his car. He looked me in the eye and said its so brutally fast it's taught him to be extra smooth on the throttle, becuase if he is not pointed in the right direction and stabs the gas, there would be consequences
Most of the turbos we have in stock are T3 EFRs of most sizes. There are some T4 twinscroll EFRs coming through (not as many), sp we are shipping turbos as soon as they arrive they are heading out the door to fill backorders. PM me your info, ill check on it
Nov 14, 2012 | 07:43 PM
#2204
