New BW EFR Turbo Thread
#272
I do understand that viewpoint, this is still very early in the EFR lifecycle and we have a lot to learn in how to maximize their potential. Obviously EFR turbos excel in twinscroll hotside configuration - perrin tested them on a low VE subaru engine with singlescroll internal WG housings .. they still went head to head with the latest garrett GTX's (which i believe are on backorder for at least 2 months)
#273
. The internal WG's certainly have their benefits, but also keep in mind the a/r is a .92 which going to be a little small and backpressure will get high at 26+psi boost levels. For a twinscroll turbo if you plan to run that high levels of boost most of the time I suggest the 1.05 a/r and external wg's
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l8r)
#274
i do not have the answer to that question yet - the beauty of these of course is we can swap housings. we will obviously have a lot of 1.05 a/r evo8 results initially, bu will need to get some prototype manifolds built and tested to get .92 Internal WG data
Last edited by Geoff Raicer; Apr 22, 2011 at 12:33 PM.
#275
of what i read and understood of the perrin test the efr did actually do well.
Lets face it... all brands of turbo's can make power... even those funny ones out of taiwan... if a turbo flows X LBS/min the engine will make corresponding power.
I am looking for a turbo with response... coming on and of the throttle... and so far the test on the efr show its doing just that.
Lets face it... all brands of turbo's can make power... even those funny ones out of taiwan... if a turbo flows X LBS/min the engine will make corresponding power.
I am looking for a turbo with response... coming on and of the throttle... and so far the test on the efr show its doing just that.
#276
l8r)
#277
Geoff, will there be other turbine housing options for the 6758 in the near future?
Am I running the numbers right by saying the 58mm turbine in the 0.64 A/R housing flows roughly 15-16 pounds/min corrected?
Am I running the numbers right by saying the 58mm turbine in the 0.64 A/R housing flows roughly 15-16 pounds/min corrected?
#282
Thanks! Geoff did an amazing job building the manifold from the jig we made and sent off to him. You're right too! The turbo DOES sit pretty far forward. So far, in fact, that we made a bracket that will attach the compressor housing to the frame close to where the stock rad support would go on the passenger-side. We are excited to get this bad boy installed next month. As for not running a filter, we don't think that that should be an issue, especially since this isn't a DD by any means and will never see rain/water. The Buschur FF kit uses a CF block off plate for the grille which is a good idea so as to prevent stuff from entering the turbo compressor and we will most likely build a similar plate for the Voltex front bumper. Now that I think of it, the Voltex bumper doesn't come with a grille either! LOL! Guess we need to make a grille AND a little blocking plate.
#283
Thanks! Geoff did an amazing job building the manifold from the jig we made and sent off to him. You're right too! The turbo DOES sit pretty far forward. So far, in fact, that we made a bracket that will attach the compressor housing to the frame close to where the stock rad support would go on the passenger-side. We are excited to get this bad boy installed next month. As for not running a filter, we don't think that that should be an issue, especially since this isn't a DD by any means and will never see rain/water. The Buschur FF kit uses a CF block off plate for the grille which is a good idea so as to prevent stuff from entering the turbo compressor and we will most likely build a similar plate for the Voltex front bumper. Now that I think of it, the Voltex bumper doesn't come with a grille either! LOL! Guess we need to make a grille AND a little blocking plate.
On another note, please post more pics when you get the manifold! Looks great
#284
#285
Gosh! i cant wait to see results from so many different sizes of these!
Geoff, couldnt you make a Top mount turbo manifold for the Twinscroll Internal wastegate EFR turbos which would give you plenty of room and allow you to keep the AC, with no nasty bends?
Geoff, couldnt you make a Top mount turbo manifold for the Twinscroll Internal wastegate EFR turbos which would give you plenty of room and allow you to keep the AC, with no nasty bends?