[Closed] Borg Warner Efr Series Turbos

[black bnr32]

Beer baron, will you be able to provide dyno graphs of all 3 (with rpm on the x-axis)? Also, any logs of boost from on the street or track would be fantastic.

Do you have any info on the new exhaust manifolds? internal or external gate? what about on the 8374 and 9180 setups? twinscroll or no?

what is the exhaust setup from turbo back on all 5 setups?

[Sidwysracr]

Beer baron, will you be able to provide dyno graphs of all 3 (with rpm on the x-axis)? Also, any logs of boost from on the street or track would be fantastic.

Do you have any info on the new exhaust manifolds? internal or external gate? what about on the 8374 and 9180 setups? twinscroll or no?

what is the exhaust setup from turbo back on all 5 setups?

I will also be interested in dyno graphs. Do you have graphs of the -5's and the -10's? And please post the dyno of the efr pair.

Much appreciated.

[TheKeeper]

well I have some news. have a set of 6258s for a GTR on the way now. Full kit with full race manifolds, twin 6258s etc. This particular car has run -5s and -10s so it'll be a great comparison. I'm hoping for -10 power with -5 driveability.... I think they'll deliver but there's only one way to find out..... bear in mind they are quite a bit of airflow. 44lb each is a lot of powa for a little 2.6L engine....

You ARE the first retail set. There is ANOTHER set heading to Australia soon as well. We know our results on the RB26 here in the states, but are eager to see how you like this set up.

[simpletool]

So what is the general consensus of the equivalent GT3071/76 in BW flavour? Any comparisons to show if the BW is worth looking at for this power range (260-300kw) on a 2.5L ?

I'd love to try something that rivals the GT2835 Pro S on the RB25....and was hoping it will be the EFR 7064. But I'm a bit suss about the super small ratio of compressor to turbine (especially considering the low trim of the compressor on this model).

Well after reading an absolute sh!tload of comparison yesterday.....I still don't know because the 2 turbos that SHOULD compare are not tested yet because it appears they still aren't released to the public ->>> EFR 7064 and 7670.

Here is what seems to be somewhat confirmed (sorry if this is a rehash). Some of this rant is a interpretation from the link at the bottom.

Many of the EFR turbos are not really exact matches and perhaps deliberately fall between the garrett offerings while giving more response off-boost and a more linear response of at least the size smaller turbo (ie. GT35 vs GT30).

The boost ramp plots on the dyno do not really show how responsive they feel on the street.

From comparison with the A and C frame EFR turbos vs the Garret items it would seem the 7064 should flow between the 3071 and the 3076 and be more responsive off-boost than either of them. BUT, only a true test will tell as the 7064 has a smaller inducer than the 6758 and a low ratio ratio of compressor to turbine size.

The 7670 appears to be between the 3076 and the 3582.

Ahhh the 7670 vs GTX3076 thread...EFR 7670 vs GTX3076

Edited July 8, 2011 by simpletool

[GTScotT]

We know our results on the RB26 here in the states, but are eager to see how you like this set up.

Am I missing something? I have not seen any RB26 results to date, other than a car launching on youtube.

[Beer Baron]

Beer baron, will you be able to provide dyno graphs of all 3 (with rpm on the x-axis)? Also, any logs of boost from on the street or track would be fantastic.

Do you have any info on the new exhaust manifolds? internal or external gate? what about on the 8374 and 9180 setups? twinscroll or no?

what is the exhaust setup from turbo back on all 5 setups?

The 9180 is Twin Scroll twin gate on a Full Race Manifold. The 8374 is also twin scroll, twin gate.

The 6258s are both internal gate. and I have no info on the manifolds for them other than they are Full Race (and thus I trust they will be well designed and manufactured), they are T25 flanged and the turbos are internal gate.

exhaust set-up on the 9180 is very much high flow. nice tapered dump that expands out from the turbo outlet to about 4inch diameter and nothing really in the way of restriction etc.

the 6258 is a pure track car. dyno graphs will be up to the car owner but I don't see there being a problem sharing.

[Beer Baron]

You ARE the first retail set. There is ANOTHER set heading to Australia soon as well. We know our results on the RB26 here in the states, but are eager to see how you like this set up.

nice. do I get some kind of plaque? or maybe signed turbos? just kidding. we looking forward to getting them here.

[FineLine]

Am I missing something? I have not seen any RB26 results to date, other than a car launching on youtube.

This

[TheKeeper]

nice. do I get some kind of plaque? or maybe signed turbos? just kidding. we looking forward to getting them here.

Maybe a t-shrt? We're excited to see someone else test the twins.

[black bnr32]

The 9180 is Twin Scroll twin gate on a Full Race Manifold. The 8374 is also twin scroll, twin gate.

The 6258s are both internal gate. and I have no info on the manifolds for them other than they are Full Race (and thus I trust they will be well designed and manufactured), they are T25 flanged and the turbos are internal gate.

exhaust set-up on the 9180 is very much high flow. nice tapered dump that expands out from the turbo outlet to about 4inch diameter and nothing really in the way of restriction etc.

the 6258 is a pure track car. dyno graphs will be up to the car owner but I don't see there being a problem sharing.

Excellent! Any results you can post will be much appreciated by many.

[Beer Baron]

Maybe a t-shrt? We're excited to see someone else test the twins.

Lol. Make it XL. we are just excited to try them too. The car is a pretty well sorted setup so we're hoping for good results.

[Beer Baron]

This

Noel, they have some grphs etc from the 34 GTR with the twins. Not sure if they've been posted anywhere but I've seen them. Might check with full race if they want them posted. I think they were only preliminary testing type results from memory.

[black bnr32]

^

page 9

[FineLine]

Noel, they have some grphs etc from the 34 GTR with the twins. Not sure if they've been posted anywhere but I've seen them. Might check with full race if they want them posted. I think they were only preliminary testing type results from memory.

Given this thread was started back in october last year Richard results are rare as robot shit.

I was a prospect for one of these turbos, All I wanted to see was some real world results. T'would appear I could die of old age before they are forthcoming.

[Trozzle]

T'would appear I could die of old age before they are forthcoming.

another few months Noel, you can hold on....lol

[FineLine]

I'll haunt you for that Troy. efr turbos on your roof at midnight.

[Beer Baron]

Check page 9 Noel the rb26 results are there for both e 8374 and the twin 6258 kit. Give it 3 weeks and there'll be local aus results. :-)

[TiTAN]

I'll haunt you for that Troy. efr turbos on your roof at midnight.

if it means you leave perfectly good turbos on his roof, you are most welcome to haunt me too.

[Trozzle]

Haunt away lol

[FineLine]

Check page 9 Noel the rb26 results are there for both e 8374 and the twin 6258 kit. Give it 3 weeks and there'll be local aus results. :-)

What am I missing here. this thread is 8 pages long and you tell me to check page 9.