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[Closed] Borg Warner Efr Series Turbos

Lithium

By Lithium,
in Engines & Forced Induction

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HarrisRacing Proficient

HarrisRacing

Posted
Posted

Overrated mate save your money. Your response looks better than an 8374 for sure.

I have never seen a convincing dyno chart for and rb26 or 28 yet even though these things have been out forever.

Will be interesting to see piggazis and Harrisracings when they eventually post a chart.

Sorry for the delays in my project, but I'm back on it and set my goals to have that thing dyno'd within 45 days. I'm trying like hell! Trust me, I want to see an 8374 efr dyno on a stroker as well :)

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Lithium
Lithium

Hi all!   I've not really been active on this forum for some time and although I lurk in to read bits and pieces of interest I don't really think of this as a forum I'm part of but I once was and I di

R32 TT
R32 TT

Haha - yeah it could use some more boost Simon..  I'm sorry I've not put up Motec logs in the past for those who've wanted to see. Back at the time I did a bit of comparing because I did more or

Full-Race Geoff
Full-Race Geoff

mr skidz, your posts are coming off as trolling at this point.  do EFR people go into precision threads and talk about how great their mates setup is, but wont give any details??  whilst complaining t

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HarrisRacing Proficient

HarrisRacing

Posted
Posted

theres an RB30 + 8374 dyno chart from Chris Vautier (new zealand) somehwere in this thread: http://www.gtr.co.uk/forum/154737-sub-boys-r32-gt-r-then-now-66.html

Holy smokes is that really 630 whp on PUMP GAS?!

Well I'm hoping to hit my target of 550 whp on pump gas. Any more is Lagniappe as we say down here :)

MaximuSmurf Enthusiast

MaximuSmurf

Posted
Posted

Anyone running one of the newer T4 TS 6758's on an SR20? Can't find tooooo many people around with the setup. Thinking about going low mount T4 TS manifold and 6758 T4 TS 0.80 turbo (stiffer spring on internal wastegate) on my S15. It's daily driver. Some weekend warrior, and occasional track day. I'm all about that response. Poncam, Z32, 2000cc injectors, Forged engine, RB25 gearbox, Nistune (e85 Fuel).... was hoping for 300rwkw, maybe full boost around 3500rpm. Which seems to be a fantastic package, especially with that off boost and 'transient' response the BW are known for. Can anyone speculate on results of the TS 6758??

I know everyone totes the 7163, and I do love it, was considering in T4 TS version... however I just think I'll end up netting ~350rwkw which I just don't think is useable in an s-chassis.

"slow is smooth and smooth is fast" - some guy probs a while back.

HarrisRacing Proficient

HarrisRacing

Posted
Posted

Agreed that housing is more compact in everyway. My boost solenoid (8374) is out on the edge of the compressor housing as well. While mine fit well like it is, I bet the 90 degree is a better fit with piping.

MaximuSmurf Enthusiast

MaximuSmurf

Posted
Posted

Gcg got back to me and said they can get them in for the 6758. Not sure on other sizes. They don't carry them as they're brand new and don't have any on order yet. But maybe email them if anyone is interested in converting over.

Full-Race Geoff Rising Star

Full-Race Geoff

Posted
Posted

these new BW 90 degress housings? Seems like would make pipe layout on an SR20det (S15 in my case) alot easier.

agreed- for SR20 s-chassis that 90 degree housing B1 turbo posted above can help clean up pipe routings. They are much more expensive housings however

for the bigger 8374 and 9180 turbos, these already come with an optional vband you can add a 90

Anyone running one of the newer T4 TS 6758's on an SR20? Can't find tooooo many people around with the setup. Thinking about going low mount T4 TS manifold and 6758 T4 TS 0.80 turbo (stiffer spring on internal wastegate) on my S15. It's daily driver. Some weekend warrior, and occasional track day. I'm all about that response. Poncam, Z32, 2000cc injectors, Forged engine, RB25 gearbox, Nistune (e85 Fuel).... was hoping for 300rwkw, maybe full boost around 3500rpm. Which seems to be a fantastic package, especially with that off boost and 'transient' response the BW are known for. Can anyone speculate on results of the TS 6758??

I have not tried the TS6758 but I agree it may be a perfect combination for what youre considering. You can use it with the 90 degree housing I have a beater S14 with SR20 and was running an old 6258. it works so well on a junk setup for 350hp that i dont plan to change anything

Holy smokes is that really 630 whp on PUMP GAS?! Well I'm hoping to hit my target of 550 whp on pump gas.

yes that is pump gas, on a built/prepped RB30. 550whp seems reasonable if the wastegate actuator is properly sprung and everything is in order.

Geoff, does full race have these in stock?

We stock the entire line of EFR turbos, the 90 degree comp covers are en route to us

AFAIK, They've only released the 90° housings for the 6258, 6758 and 7163...

100% correct. 8374/9180 already have a vband outlet that can serve as a 90 addition easily

HarrisRacing Proficient

HarrisRacing

Posted
Posted

Can't believe I have this turbo and didn't notice that? Do you simply machine off the end and then use a 2.5" vband? Does someone sell a 90 with flanged connection already?

I'd really interested. My piping does fit well but it is all silicone. That outlet really gets tight near my shock tower.

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HarrisRacing Proficient

HarrisRacing

Posted
Posted

Can't believe I have this turbo and didn't notice that? Do you simply machine off the end and then use a 2.5" vband? Does someone sell a 90 with flanged connection already?

I'd really interested. My piping does fit well but it is all silicone. That outlet really gets tight near my shock tower.

Full-Race Geoff Rising Star

Full-Race Geoff

Posted
Posted

yes that is correct @harrisracing -- cut the end off and its a standard vband. the same as any Cummins/Holset turbo and many other BW or MHI turbos. There are cast 90 degree vbands available for this application but you could also just but a vband and weld the intercooler pipe to it

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