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Borg Warner EFR Series Turbo's V 2.0

Piggaz

By Piggaz,
in Engines & Forced Induction

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HarrisRacing Proficient

HarrisRacing

Posted
Posted

Car arrives at shop with stock RB26 on stock turbos. Has installed a PNP Haltech and a rough, rich tune. 14 psi on top end...laggy for sure. I knew we were swapping them so I didn't try hard here.

3 weeks later:
Billet oil pump gears
Tomei Cam Gears (rolled in pretty well)
My old EFR 8374 .92 and 6 boost divided IWGmanifold
3" exhaust
Still on 93 octane and still on Haltech basemap timing (still tuning just ran out of time last night)
15-16 psi boost (same as his car when arrived).
 

This is a FANTASTIC turbo for an RB26!

image.png.c7129c6116b3ce3425aa6f0ba6db4e5f.png

 

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HarrisRacing
HarrisRacing

Note to all. Finally moved my cam gears on the dyno. Spent 4 hours there yesterday (on a dynocomm inertial - which will soon be eddy brake). I now see what a V-cam would do for you. Moving my Pon

minesskyline
minesskyline

Here's some updated pics

Deano 1
Deano 1

?

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burn4005 Proficient

burn4005

Posted
Posted (edited)
2 hours ago, GTSBoy said:

Torque line is not boost line.

looking at a few dyno sheets (from some manufacturers) it appears on some they correlate directly, and on others torque lags MAP by a little bit. I'm guessing that is more to do with torque calculation/smoothing and retarder control than reality?

I can't think of any reason why torque and MAP wouldn't correlate directly. why would torque lag it?

Edited by burn4005
GTSBoy Grand Master

GTSBoy

Posted
Posted
7 hours ago, burn4005 said:

looking at a few dyno sheets (from some manufacturers) it appears on some they correlate directly, and on others torque lags MAP by a little bit. I'm guessing that is more to do with torque calculation/smoothing and retarder control than reality?

I can't think of any reason why torque and MAP wouldn't correlate directly. why would torque lag it?

Yuh, hence why I said what I said.  Without knowing whether it lines up on that car/dyno combo, you don't quite have enough info to assume.  FWIW, torque climbs from low to max in an NA....there is no boost to "set" the torque level.  That efficiency/breathing function is still present in a turbo engine too.  So if the boost comes up to max before the engine has reached its inherent torque plateau, then the torque should still lag the boost.

Duncan Grand Master

Duncan

Posted
Posted
6 hours ago, fatz said:

If anyone needs a 9180 with external gate on housing 50mm progate

i have one for sale

how much woosh does that size make mate, I need something for the rb30 stagea

HarrisRacing Proficient

HarrisRacing

Posted
Posted
On 7/26/2018 at 5:36 PM, burn4005 said:

Full boost at 5k on stock turbos? That's a bit lethargic

I agree with you more for sure now. Below is the comparison on SAME dyno (only days apart) to my 1991 GTR.

Here is my stock RB26 GT2860-7 car. It has Greddy downpipe, HKS super Drager exhaust, Tomei cam gears rolled in about 6 deg, and now has hard inlet pipes that I built last week and a Haltech Platinum pnp (the rev2 is nice!!). I modified fuel rail for -6 inlet on rear and upgraded fuel pump with FIC 850cc drop-ins. 

On stock AFM's and just raising boost to 18psi it was 384 whp before cutting due to AFM overrun. It did ~ 300 whp at 9-10 psi boost.

New dyno on Haltech at 20.5 psi and 3 deg added to base haltech timing = 456 whp. I want you guys to note that while it "hangs" with the 8374 EFR IWG .92 on boost threshold on a non-load bearing dyno, when driving the two cars the single completely stomps the twins on response. You can spool sooner, run less boost, and make more power. The 8374 car on 14 psi makes the same power as the -7 car does on 19-20 psi...It is a no-brainer for anyone that thinks that -7 are acceptable boost threshold and lag turbos then the 8374 will beat the pants off of them everywhere.

image.thumb.png.22dddd5be5abe86d89d211d546afab97.png

 

 

RICE RACING Community Regular

RICE RACING

Posted
Posted (edited)

Here is 9180 on 13B street port engine (the video I put up of it on idle a page or so back). Turbo is max response set up with adequate power range (~700bhp engine), makes for a fast car in a RX7 weight/size.

Power band is good, but it can only do so much, 120k turbo speed on this one, we have run higher on other cars though. Its got a nice spread of power and will do 100 to 200kph in one gear in under 5 seconds. I also include data on phase + anti phase control, we can run a bit more boost if required, and no drop off to 9000rpm (beauty of an advanced ECU).

lSzF6Zn.jpg

Edited by RICE RACING
right pic
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Full-Race Geoff Rising Star

Full-Race Geoff

Posted
Posted (edited)
3 minutes ago, Predator1 said:

Anyone have any experience with a 9180 1.01 on a 3.2? Hoping it will make 500.

The 9180 1.05 can easily supply 500rwkw worth of airflow.  the rest of the setup will need to support this, fuel is the biggest factor (knock)

4 hours ago, RB335 said:

Does anyone have a 9180 for sale?

Full-Race has a few in stock, there will be a sale for the big holiday in the states this weekend

Edited by Full-Race Geoff
Predator1 Rising Star

Predator1

Posted
Posted
30 minutes ago, Full-Race Geoff said:

The 9180 1.05 can easily supply 500rwkw worth of airflow.  the rest of the setup will need to support this, fuel is the biggest factor (knock)

Full-Race has a few in stock, there will be a sale for the big holiday in the states this weekend

Thanks Geoff. I am going to be using a built and ported head as well as flex fuel. The only thing that worries me is the turbo running out of puff on the top end.

Is there nothing in between a 1.01 and a 1.45? I really dont want to have to stick a 1.45 in there. I know a friend that runs one and is rather laggy, on a 3.2.

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