[Closed] Borg Warner Efr Series Turbos

[bri73y]

My 7670 trapped 130mph/210kph last night.

Would be 1400+kgs with driver (my son)

[BoostdR]

That's in 4th gear. Response in the lower gears is not as good. Still feels slightly small for the engine capacity.

[HarrisRacing]

Wow!

[Ke55pig]

What efr turbo is 3076-T67 size 400kw max

[Piggaz]

7670

[sneakey pete]

numbering system is pretty simple. 7670 is 76mm compressor 70mm turbine.
Garrets is nice enough, gt30 size with a 76mm compressor is a gt3076.
EFR 8374 is your gt3582 size turbo erf 9180 is gt4088ish sized etc

[XGTRX]

So how does the 9180 compare to the GT4088 in the real world. Seeing how efficient the efrs are, how would they go on a 26

[NISR32.5]

There's a guy with one for sale with his 2.6 setup. 500+kW, didn't run a great time at the drags but mph was 142mph or 145 can't remember now.

[acsplit]

There's a guy with one for sale with his 2.6 setup. 500+kW, didn't run a great time at the drags but mph was 142mph or 145 can't remember now.

And this is exactly what is wrong with most people in Sydney!

Good worried about your drag time at the uleh drags rather than drive ability on the road and track.

*puts flame suit on*

[HarrisRacing]

And this is exactly what is wrong with most people in Sydney!

Good worried about your drag time at the uleh drags rather than drive ability on the road and track.

*puts flame suit on*

I know nothing about Sydney, but this is a universal trend: chasing a dyno number over all else.

2 things:

1) The 8374 is very responsive but yes it still comes on around 4k on pump which may be "laggy" for some.

2) The 7670 may be the better choice for pump powerband but I would really be scared of overspinning it. A road rage gauge may be mandatory on that setup.

I thought long and hard about the 7670. Ultimately I'm glad I went 8374 because it's still super responsive for what I'm doing with the car and I've got room to grow if I build a 3 or 3.4 later

[sneakey pete]

Drag figures do provide a good idea of power however which can help with the whole dyno calibration shenanigans

[acsplit]

Yes the mph is always used as a calculation.

just does not tell you how well it drives.

[Nismo 3.2ish]

There seems to be a few ways of looking at the power for drag against track and road.

If you do not use your car on the road it does not matter how it drives around town, rev it up and let go , so whatever makes you happy.

For me I did not mind loosing some Dyno KWs up top to have it drive the way I use my car. Probably still be OK to drag, just change gears earlier I guess

[acsplit]

When you want twin turbos but EFR is life.

[TexGTR]

Looking at putting the 8374 on my built 26, what's the best way to head interms of manifolds.

Any videos of these things in action as well?

[Piggaz]

Can't complain about fitment of the 6 boost/8374 1.05 of mine.

[sneakey pete]

Getting a friend/fabricator to knock one up for me custom to make sure it fits well. not sure on exact design yet.

Also,

f**k yeah!

[HarrisRacing]

Looking at putting the 8374 on my built 26, what's the best way to head interms of manifolds.

Any videos of these things in action as well?

I am also on 6 boost. Lots of pictures in build thread. Raw brokerage won't work, Full-Race won't work with r32 ps and ac.

I'll get some more videos but I have some on my build thread. I need to get a driving video of the car soon.

[sneakey pete]

I was under the impression that full race was just the AC, I think i've seen their manifold on a car with 32 power steering still on it.

[Full-Race Geoff]

So how does the 9180 compare to the GT4088 in the real world. Seeing how efficient the efrs are, how would they go on a 26

i was a fan of GT4088R back in 2003, it was a good twinscroll turbo at that time. Now its 2016, GT4088R is outdated and very old design. EFR9180 murders it. Even the journal bearing SXE turbo smokes the 4088R

The 8374 is very responsive but yes it still comes on around 4k on pump which may be "laggy" for some.

I suggest to check your IWG spring and perform a boost leak test. For an EFR8374 on RB26, boost should be well on around 3500rpm. 4000rpm is a little bit late

Looking at putting the 8374 on my built 26, what's the best way to head interms of manifolds.

Any videos of these things in action as well?

We have a couple R32 GTR in our shop right now if you need photos of anything in particular.

I was under the impression that full race was just the AC, I think i've seen their manifold on a car with 32 power steering still on it.

^^that is correct