Jump to content
SAU Community

Borg Warner EFR Series Turbo's V 2.0

Piggaz

By Piggaz,
in Engines & Forced Induction

 Share

Recommended Posts

  • Replies 2.9k
  • Created
  • Last Reply

Top Posters In This Topic

Popular Days

Top Posters In This Topic

Popular Days

Popular Posts

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

?

Posted Images

Nismo 3.2ish Grand Master

Nismo 3.2ish

Posted
Posted
22 minutes ago, s2d4 said:


Should be a riot on the streets!

Yeah :devil:it is fun now and from what I can work out with bum in seat experience , better with the EFR :cool:

Wait till Paul gets his going sometime this Century , if I am still alive I will not get in the car with the maniac, maybe,  LOL

  • Like 2
Link to comment
Share on other sites
XGTRX Veteran

XGTRX

Posted
Posted
12 hours ago, acsplit said:

Clearly people in Sydney have forgotten that the GT-R is designed for racetracks, not mind numbing bafoon I mean drag racing

Don't mean to be direspectful but Trap Speed is used as a tuning tool. Nothing to do being a bafoon just more to do with verifying dyno figures, as a graph can say what it wants but Mph is the purest number for measuring peak power.

So if a dyno sheet quotes 500kws peak power and the car pulls 130 mph then questions need to be asked to the validity of the power figure quoted on the dyno sheet.

Like it or not its just the way it is.

  • Like 5
Link to comment
Share on other sites
usmair Mentor

usmair

Posted
Posted (edited)
3 hours ago, XGTRX said:

Don't mean to be direspectful but Trap Speed is used as a tuning tool. Nothing to do being a bafoon just more to do with verifying dyno figures, as a graph can say what it wants but Mph is the purest number for measuring peak power.

So if a dyno sheet quotes 500kws peak power and the car pulls 130 mph then questions need to be asked to the validity of the power figure quoted on the dyno sheet.

Like it or not its just the way it is.

i agree with this..... even though it is my own car....

on 500kw i should have gotten 140mph or very close to it....

Always had a suspicion JEM's dyno reads a little happy but I know Adam is a good tuner so I went to him for his capability rather than what his dyno will spit out.

Next time around I'm going to make sure I'm getting 31psi on the night so we'll see its real MPH :)

Edited by usmair
Link to comment
Share on other sites
Leroy Peterson Grand Master

Leroy Peterson

Posted
Posted
Nothing to do being a bafoon just more to do with verifying dyno figures, as a graph can say what it wants but Mph is the purest number for measuring peak power.

So ... youre saying GTRs at WSID go there for more than just being kicked off after the first run, and refusing to install a cage or parachute?
  • Like 1
Link to comment
Share on other sites
XGTRX Veteran

XGTRX

Posted
Posted
9 minutes ago, Leroy Peterson said:


So ... youre saying GTRs at WSID go there for more than just being kicked off after the first run, and refusing to install a cage or parachute?

I thought you never get to run at WSID with all the VLs dumping their guts every 5 minutes

 

7 minutes ago, r32-25t said:

Speaking of stupidly high reading dynos, what happened to that bloke that made 700kw with -5s. He seemed to disappear after running his car on an Aussie dyno

Ha ha. That thread was the definition of insanity.

  • Like 1
Link to comment
Share on other sites
Nismo 3.2ish Grand Master

Nismo 3.2ish

Posted
Posted
53 minutes ago, minesskyline said:

Has anyone considered twin 7163's as shown here?: 

http://www.full-race.com/store/efr-turbo-kit/nissan-rb26dett-efr-twin-turbo-kit-1.html

This looks to be the direction I will head over the winter. 

Have seen a few different twin EFRs used on YouTube, up to 9180s.

What I did think about, if you ever got defected for having a single on,  could you go with smallish twin EFRs legally ??

Would think the cost of going back to twins would be pretty prohibitive .

Here is an RB26 @ 800awhp + with twin 6258s

 

Link to comment
Share on other sites
Piggaz Grand Master

Piggaz

Posted
  • Author
Posted
9 minutes ago, Nismo 3.2ish said:

Have seen a few different twin EFRs used on YouTube, up to 9180s.

What I did think about, if you ever got defected for having a single on,  could you go with smallish twin EFRs legally ??

Would think the cost of going back to twins would be pretty prohibitive .

Here is an RB26 @ 800awhp + with twin 6258s

 

Twin EFR's look just as out of place as one larger single. 

Twin EFR's don't mount in the factory position. 

 

Link to comment
Share on other sites
minesskyline Contributor

minesskyline

Posted
Posted
10 minutes ago, Nismo 3.2ish said:

Have seen a few different twin EFRs used on YouTube, up to 9180s.

What I did think about, if you ever got defected for having a single on,  could you go with smallish twin EFRs legally ??

Would think the cost of going back to twins would be pretty prohibitive .

Here is an RB26 @ 800awhp + with twin 6258s

 

I'm from the states so I don't think legality is really a big issue here. 

Link to comment
Share on other sites
minesskyline Contributor

minesskyline

Posted
Posted (edited)
12 minutes ago, Piggaz said:

Twin EFR's look just as out of place as one larger single. 

Twin EFR's don't mount in the factory position. 

 

Positioning isn't really important nor is aesthetics, for me personally. I'm looking at performance from twin 7163's versus other options, like a single EFR. According to Jon@FullRace, these turbos will be enough for 700whp on 91 octane, which were my goals originally. I don't mind the twin setup if it performs as well or better than an EFR single for the power requirements. 

Edited by minesskyline
Link to comment
Share on other sites
s2d4 Rising Star

s2d4

Posted
Posted
I'm from the states so I don't think legality is really a big issue here. 

Go for it but let us know.

That 800awhp is on the high side but it is on the dynojet I guess, 80hp lost is on the low side that's for sure.

Link to comment
Share on other sites
Full-Race Geoff Rising Star

Full-Race Geoff

Posted
Posted
On 10/5/2016 at 9:36 PM, Mick_o said:

^^^Correct! This is what these turbos are about! 99% of people arent going to buy an EFR for the drag strip!   These things are all about on/off throttle type of stuff and the widest power/torque band you can just about have "in a turbo car"

thanks.  i get tired of posting this ^^^ in response to "what does it trap" posts.  Believe me guys, i get it - you want to compare it to every other turbo out there.  The thing is, these are different.  And the difference is not on a dyno or a drag strip.  If you actually get real experience with an EFR then you will get it too.. and if drag racing is your thing, Twin-EFR is the way.  Not single.

On 10/5/2016 at 2:40 PM, Lithium said:

good guys at nizpro

  • Like 1
Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing


  • Similar Content

  • Latest Posts

    • r32-25t
      GReddy Injector Help!

      By r32-25t · Posted

      You need the kit turbo taipan has shown you because that manifold ia designed have side feed injectors 
    • alexburns
      Stagea Dash Multimeter

      By alexburns · Posted

      @johnnysr22 did you end up installing the little screen thingy and did it work ?>   
    • Lithium
      Boost level and torque curve

      By Lithium · Posted

      There is a LOT of stuff that can be done, it all depends on how much time and money you want to spend on doing in.  Not all ECUs will be able to do it, and the more control you need the more time and knowledge needs to be put into making it work.  If you're willing to spend the time and money and have the right hardware and skills involved there's a lot that can be done. 
    • thx78
      Boost level and torque curve

      By thx78 · Posted

      I am impressed with all this level of adjustment. I didn't expect all this possibility
    • Lithium
      Boost level and torque curve

      By Lithium · Posted

      Correct.  In the case of the 500kw dyno plot I showed you the car actually runs two boost control solenoids for boost control and a 5psi wastegate spring.  It allows me to control how much boost pressure is applied to both sides of the wastegate valve at any point and fairly accurately control boost target as a result. I've tuned it so that it's able to target anywhere from 5psi to 25psi depending on what's needed.  The target tables I've set up in that car are Gear vs RPM, so every gear has potential for a different boost (and torque) curve.   First and second gear have quite low boost targets, third gear actually has different target boost all the way through the rpm range as it's a stock RB25 gearbox - the boost targets have been chosen to maintain a peak of 600nm (what the owner has set as the maximum torque he's happy with putting through the stock 3rd gear) but it carries that to the rev limiter.   The boost curve to achieve that is something of a ramp up, then hold, then ramp up again and the power curve looks more like a flat line haha.  
×
×
  • Create New...