[Borg Warner EFR Series Turbo's V 2.0]

Guys,

Quick question.  What is the difference between alu and cast iron chra - apart from weight?  Do we know what aluminum grade is used by BW?

how well does the alu hold up?

 

Thanks kenny

[Borg Warner EFR Series Turbo's V 2.0]

LOL.  Thanks all. 

Got the hint, loud and clear.
I need to sell the 9180 and get 8374 back... That is after I have confirmed that 9180 is not a good idea on stock displacement, which you all kindly did.

The 9180, vcam and stuffs are all meant for a 2.8l engine that I planned earlier - sole reason why I sold the 8374 and got the 9180.  2.8l is still an option albeit an expensive one and i would rather not as the current engine is still very healthy and reasonably new.

Vcam is not going in so soon. I need a set of piston with valve recess as the current cp pistons do not have them.

I am currently running poncam type b. For the vcam, I bought hks 264 step 2 exhaust cam. It has a slightly bigger lift (10mm vs 9.15mm). Would you recommend swapping the hks in while maintaining the tomei type b intake cam when I swap over to the ported head?

3 hours ago, Lithium said:

Straight up, you basically have 3 incompatible requirements:

1) EFR9180 power levels

2) Want to be able to get good pull from <4000rpm

3) An RB26

Remove the thing from that list which missing out on will bother you the least.  DON'T go with a .92 housing especially on a 9180, its not going to make it worth while.  It won't spool the way you want and it will also choke the compressor, worst of both worlds.

 

Response over power, definitely....

[Borg Warner EFR Series Turbo's V 2.0]

On 20/02/2018 at 10:22 AM, Lithium said:

Do you have stock displacement, @gzro?  If so, then you'll be needing near 5000rpm to keep on steam with a 9180... it is a big turbo for a 2.6.  Even on a 2.8 you'd want to be keeping over 4000rpm, the EFR8374 is the max I'd personally go with unless you've got more displacement or a good head.

Would a 0.92 ar work on stock displacement? Plus vcam?

Really reluctant to build a 2.8l engine when the current engine is still healthy,  current engine is <15k after rebuilt..

[Borg Warner EFR Series Turbo's V 2.0]

17 hours ago, burn4005 said:

I think you're going to have trouble with the excedy carbon triple on a 9180.  according to here:

https://shop.exedyusa.com/exedy-racing-clutch/exedy-racing-hyper-carbon-series/g-50059.aspx

its only rated to 568 ft lb. (770Nm)

the ORC1000F triple is rated to 980NM

the coppermix competition twin is rated to 950NM

and the OS Giken R3C is rated to 1050ft lb (1400NM)

Thanks....just realized....  the clutch was meant for the earlier turbo as well...

 

18 hours ago, Nismo 3.2ish said:

Had the Coppermix twin plate for a few years, great to drive, engages up top , good for my short legs, lol

Now have the ATS Carbon triple plate, engages early but as easy to drive as the Coppermix twin  , not an  OFF/ON clutch , easy and smooth and handles my torque easily. 

2 very good cluthes

What hp and torque were you running with the ATS triple carbon?

19 hours ago, Piggaz said:

Another vote for the 8374/1.05 especially on a smaller 2.6L.

The OSG triple is a pleasure to drive. The pickup point is lowish, not grabby/bitey. Having had a Nismo coppermix for just on 10 years, I was quite hesitant about going to the OSG triple. Totally unnecessary. 

* Apprantly they did some changes at some point. Not sure when the change over was but it would have been before July 2015.

Interested too see if the nismo can still hold up with your latest upgrade.   then i can decide which clutch to go for.

[Borg Warner EFR Series Turbo's V 2.0]

2 hours ago, Lithium said:

Do you have stock displacement, @gzro?  If so, then you'll be needing near 5000rpm to keep on steam with a 9180... it is a big turbo for a 2.6.  Even on a 2.8 you'd want to be keeping over 4000rpm, the EFR8374 is the max I'd personally go with unless you've got more displacement or a good head.

Stock displacement at the moment.... 5000rpm is like driving a honda for hill climb...nothing against honda tho...  just not too comfortable with having to maintain a rev that high through out the drive..

I have a spare head, a ported n polished head off a race engine frm japan. I have no idea if it is a good port job.  Will be using this head after i change the valve guides.

Also have the Greddy intake which may just introduce more lag to the setup...

For exhaust manifold,  i have the non-wastegate fullrace that i bought for an earlier turbo that i have now sold. Will have to get wastegate flange welded onto the manifold.  The earlier turbo was an efr8374 0.92ar - my life is full of crappy decisions......

2 hours ago, usmair said:

OS Giken Racing Triple Plate.

For hill drive, I'd recommend the 8374. 9180 on 2.6L probably too big.

Dyno comparison is on the way...

How does the OS triple plates drive?

I have the exedy triple carbon (hyper-r series i think) that i am planning to use with the 9180.  Currently on ORC twin carbon, which is very easy to drive with no On/Off bite. However i have read and been told by numerous people that On/Off bite is inevitable with triple plates.

[Borg Warner EFR Series Turbo's V 2.0]

31 minutes ago, Mick_o said:

If you are after a hill climb car a 9180 wouldn't be a great choice in my opinion. Sure its gunna make gobs more stick but itd make it bit of a handful and hard to punt through the tight stuff! An 8374 1.05 is where its at i reckon. More than enough grunt to satisfy any mortal man but still responsive enough to be a blast through the hills. 

The current gtss is easy on tight corners n windy roads but a bit boring when we hit the long stretches (down hill).

Another mate has a 2.8l with gtrs n find the exact opposite of mine.. fast on long straights.

On hill climbs, i try to maintain 3.5k and above most of the times on the gtss.  O the gtrs, my mate needs to maintain 3.5k to 4k. If the 9180 requires more than 4k to be in the power range then it will not be a fun car for hill climb.

[Borg Warner EFR Series Turbo's V 2.0]

16 hours ago, usmair said:

yes standard 33 GTR diff with 34 Box

Great. I hv the same! What clutch are you using at the moment?

My main sport is hill drives. I am currently running a pair of gtss and looking at upgrading to efr9180.  it is a 1.05... one of my mate has a stock engine with efr8374. it has a 0.92 without the actuator. Tuned to 1.2bar and the car is great.

My current engine has poncam b, tomei rods and cp pistons (9:1).  the engine runs great so i am very reluctant to rebuild it.  As i am into hill drive, my main concern is response from the 9180. 

Do you of a dyno overlay to share? And maybe a vid of how the car goes?

 

[Borg Warner EFR Series Turbo's V 2.0]

On 17/02/2018 at 12:08 PM, usmair said:

It's smoother than the 8374. The 8374 felt snappier when it came on. This isn't.

Low down there is noticeable lag compared to 8374 but once IMO it's perfectly acceptable to drive around town once ur up in the red range. My short ratio getrag also helps with drive ability.

Top end is mental. Even as the driver I felt a little scared as too how quickly it picked up speed. 5500 to 8500 is where it all happens on 2.6 so a stroker and 9k rev limit with this turbo would make for an incredible street car.

Are you running 4.1 fd with the getrag? 

[Borg Warner EFR Series Turbo's V 2.0]

5 hours ago, usmair said:

580kw @ 35 psi at 5,500RPM - 119,000 RPM turbine speed.

hahahahahahaha f**k it im leaving it there.... 

 

very nice.  how does it drive when compared to the 8374? 

[Borg Warner EFR Series Turbo's V 2.0]

Guys, what do you think the below setup? Would it be laggy?

1. efr9180 1.05

2. Fullrace manifold running twin gates

3. Rb26 87mm forged CP piston 9:1 compression with tomei rods

4. Ported head with tomei type b cams

5. Greddy intake

6. Getrag with 4.1 final drives

I hv been searching for results of 9180 on stock 2.6l displacement but couldnt find much info.  what i am really after is whether it is going to be laggy.

Fuel will be 97 but running on wmi.

Thanks

 

 

[Borg Warner EFR Series Turbo's V 2.0]

2 hours ago, Mick_o said:

What are your power goals mate? 

Why are you having 2nd thoughts on the 8374?

The 8374 is a beast of a turbo. If a street car id definitely recommend an 8374 with 1.05 rear. On a 2.8 you'll be getting a boot up the ass well under 4000rpm  in 2nd gear and obviously sooner in higher gears. 

My mates 8374 3L combo is spinning all 4 265 ADO8R's at around 3700rpm in 2nd gear. It's f**king awesome! 

600atw would be nice and slightly more, activated via scramble boost when required would be great.

Feedback i have gotten so far is the 0.92 housing fits perfectly on a 2.6l but on a 2.8l with vcam, maybe i should be looking at something slightly bigger.  I already have the 8374 with 0.92 and getting the 1.05 housing alone is not worth it. 

So the option now is to stick with what i have or sell the 8374 and get the 9180 with 1.05 housing.  Cant remember where I read this but some posted that the response between the 2 are almost the same - maybe 500rpm difference?

 

[Borg Warner EFR Series Turbo's V 2.0]

Guys, would like to get some advice on efr choices.

The setup will be HKS step 0 2.8l kit and hks vcam step 2 (think it is 264 intake with 8.5mm lift).  on exhaust cam, i was told i need 272 high lift cam so i m planning to get hks step 2 cam.

turbo choices are efr8374 0.92 internal gate or efr9180 1.05. 

Car is mainly a street car but i do hope to be able to bring it to track in the future.  car is a bnr34 runninb 4.1 final drive.  i decided on 8374 initially but after speaking to a few friends who has had experience with the same turbo on a built 2.6l, i am having second thoughts.  

Which would be a better choice between the 2?

 

Thanks

[Tomei +1mm Valves & Type B Springs - RB26]

Where are you located pls ?

 

[Stripping R33]

do you have r33 v spec rear diff?