Jump to content
SAU Community

[Closed] Borg Warner Efr Series Turbos


Lithium

Recommended Posts

I haven't driven yours. I only used no more than 50% throttle and no more than 5500 RPM absolute tops.

It's imediately back on pipe. Makes the precisions between gears seem like a mid 90's turbo.

A dyno sheet won't give you a good idea of how it goes about its thing. That's what every owner of an EFR talks about.

How does it compare to the TO4Z you drive a while back?

Speaking to a local turbo guy and he said he can mod a Zed to bring it on 800rpm earlier, make more powa, and improve the already good part throttle transient response. Not sure if its an exaggeration, but interested to hear ur thoughts.

He also mentioned these EFRs and SXEs are very very good.

[emoji2] [emoji2] [emoji2]

Edited by XGTRX
Link to comment
Share on other sites

How does it compare to the TO4Z you drive a while back?

Speaking to a local turbo guy and he said he can mod a Zed to bring it on 800rpm earlier, make more powa, and improve the already good part throttle transient response. Not sure if its an exaggeration, but interested to hear ur thoughts.

He also mentioned these EFRs and SXEs are very very good.

I didn't drive it mate. I was only passenger. The Z for what it was performed very well. Considering stock engine, open scroll... Realistically a basic setup. The Z was cracking gates at 4500 rpm in second gear, to be doing that at 3700... I doubt it.

This car had -5's removed and 8374 1.05 bolted in place. I can try and explain how it was. Put all the theories and "I believes" out of your mind and drive it. It's the popping around, doodling around and gear changes that was most impressive. "Big laggy single", think again.

Link to comment
Share on other sites

Stop making me want to flog off all my gtx twins bits and making me want to buy a 7670 guys...

There's a guy selling an EFR7670 in NSW somewhere.... comes with high mount T3 manifold for SR20.... but still... $2800 I think. PM me if you want details and I'll try find the link.

Link to comment
Share on other sites

Stop making me want to flog off all my gtx twins bits and making me want to buy a 7670 guys...

In all honesty Pete you'd be MAD not to! A 7670 with 1.05 rear on your car would shit 400kw in and be all in at well under 4000rpm!

Your GTX's WILL NOT do that!

Nor will they have that zing under your foot or the transient response the 7670 will have!

If i ever pull my finger out and finish the evo off. Im pretty confident my stock 2L with mivec will be making full boost by at least 3800.

If you are honestly thinking about it Pete sell up now mate and jump on an EFR you wont regret it! I been on Pauls case for ages about EFR's he and his mate saw the light and now look how excited Paul is after his 1st taste of EFR goodness. Paul and I have been spoilt and have been in and driven some pretty epic cars and for us to be this impressed means its DEFINATELY something special! ?

Link to comment
Share on other sites

You guys inspired me. Pulled the wastegate hose and ran a log. Check my build thread 2.75L stroker. Ported head, ss .5mm valves Tomei poncam A, hypertune V2, stock fmic

10 psi 3300 rpms

15 psi 3888 rpms

20.5 psi at 4105 rpms

6boost manifold

8374 EFR .92 IWG

This is on medium wastegate cannister at 3 turns in (can go more and likely get in boost quicker).

Third gear

Car is barely tuned so far (I'm doing it).

Haltech isn't controlling boost though :( I'm pretty sure it's all setup right)

Link to comment
Share on other sites

So, theoretically speaking here of course,....

How would one go with the 7670 .92 iwg split t4 rear on a 2.8 stroker with 260 cams?

Who's manifold would you use for that?

Hypertune do a low mount TS T4 manifold for an SR20det.... so I imagine you could get one for an RB. That's what I want 'eventually' with an EFR7163 attached.

Link to comment
Share on other sites

Hypertune do a low mount TS T4 manifold for an SR20det.... so I imagine you could get one for an RB. That's what I want 'eventually' with an EFR7163 attached.

They don't. I spent a fair bit of time with them trying to get them to do one. No deal.

Pete (from Hypertune) said they have just started making a high mount manifold for the 2JZ boys. RB's are next. Late next year if you're lucky.

Those cast collectors are amazing though.

Link to comment
Share on other sites

So, theoretically speaking here of course,....

How would one go with the 7670 .92 iwg split t4 rear on a 2.8 stroker with 260 cams?

I have the 7670 1.05 TS on a measly old RB25. The turbo kills it on a RB25, would hate to see what it does on a 2.8.

I'd imagine it's a little too small unless your car is 100% street driven.

It will also top out at 400kw..don't expect it to go too far north of 400kw even on E85.

Link to comment
Share on other sites

Would probably try get someone like crg to knock one up. Iwg would make it easy enough to fit

A good 400kw would be more than enough, But track time would be had.

Are these too small comments based on 'well you could make even more power' or on the turbo falling way out of range resulting in a dangerous amount of heat

Link to comment
Share on other sites

It's getting outside it's limit.

Mine makes 375kw @ 24psi on E85.

My car is with my tuner this very moment having stiffer wastegate springs put in (currently only running the supplied 7psi springs) to see if we can crack 400kw.

I'll know this time next week if it can go 30psi and over 400kw!!

Link to comment
Share on other sites

Would probably try get someone like crg to knock one up. Iwg would make it easy enough to fit

A good 400kw would be more than enough, But track time would be had.

Are these too small comments based on 'well you could make even more power' or on the turbo falling way out of range resulting in a dangerous amount of heat

Have a read on the evoM forum.

http://www.evolutionm.net/forums/evo-engine-turbo-drivetrain/533438-new-bw-efr-turbo-thread.html

That's the link to the EFR thread. Start reading from page 100 or so. Pretty stout thread!

Link to comment
Share on other sites

It's getting outside it's limit.

Mine makes 375kw @ 24psi on E85.

My car is with my tuner this very moment having stiffer wastegate springs put in (currently only running the supplied 7psi springs) to see if we can crack 400kw.

I'll know this time next week if it can go 30psi and over 400kw!!

is that motor still stock since the day you've bought it?

Link to comment
Share on other sites

Guest
This topic is now closed to further replies.



  • Similar Content

  • Latest Posts

    • Does this count as a time trial as well? I got all gold in the master super licence (1 lap time trial) and received a McLaren MP4/4 for my trouble.  If anyone else has done this, did you ride the wall right around the first long right hander at Lake Louise snow track to get gold? I couldn't do it any other way... best I could do without riding the was was within 2 tenths of the gold time.
    • I definitely get the low power, sporty car to drive to smash gears but not be doing eleventy million miles an hour! It makes all the normal drives fun!   Rev match tune sounds like the funs! I didn't know the NC had a DBW throttle!   As for me, still have the Skyline, it still has the Barra in it. It's been pushed to the side of the workshop at the moment. Pretty much waiting on me finishing the wiring, and dropping new fuel lines in. Got myself an ACDC Tig end of last year so been teaching myself TIG welding to build a few things for the Skyline. The missus wrote off her GTB liberty at the end of last year, and got it back on salvage rights stupid cheap. It's also still registered, so will mean easier for me to take to the track already done most of the panel damage, just playing "clear the workshop" to make space to pull the motor and box out, fix some oil leaks, replace the clutch, and replace a few minor broken things.  Also got a Lathe at the start of the year, which is adding to the annoyance of no space, which is another reason I'm trying to build things to get more space, to get the Lathe back in a final home for it. It's a BIG lathe, can turn a 355mm diameter, and 1metre between centres... Got it at a steal! So between it and the TIG and old MIG welder, I'll be fabbing some fun little shit up But we've had a lot of shit stuff happening at home, so it's slow going getting things done. But one step at a time!
    • I love Catalunya.  Got a 1:54.632. The AMG is a hoot.
    • I hadn't got that far, my main worry was the connection to the actual calipers themselves. I'm just using new (ish) stock brake lines in the stock setup. I've just had a stud welded to the knuckle that is a little lower than the original stud (so my knuckles have two studs each side) to not have it be stretched so far in previous BBK setups, so the "block" (in the second picture) mounts a little lower for me and I hope I don't need to change anything. I may have even changed the connection to the calipers in the past and have since forgotten I did that. I may not have. Guess how I'm gonna find out. Source: hopium
    • It's more so I'm using the 1x piece line from HEL that goes from the body to the caliper. There's no middle block/mount like the HFM ones or the GKtech ones. There are certain angles/suspension compression where the line actually slightly contacts the ARB. Below of how mine sit (not my photo): How I want it:  
×
×
  • Create New...