Jump to content
SAU Community

Recommended Posts

Currently building an RB26 N1 and am wondering on the best options of Full-Race's EFR twin kits (Already ruled out the single 8374)

Have a 2.8L stroker, HKS V-cam setup and dry sump planned and am debating between twin 6258s/6758s/7163s

Curious as to each kit's output on 91 octane (AKI) and E85, before I make any decision (I also haven't decided on how much power I want haha)

Thanks in advance

Edited by lukecabrera
Link to comment
https://www.sau.com.au/forums/topic/476396-full-race-efr-twin-comparison/
Share on other sites

I made 780awhp (e85, 29 psi), 650awhp (93 octane, 22psi) on a conservative tune on twin EFR 6758s. RB26 (forged internals, stock head), 1500cc injectors, twin pumps. I've since been able to get 850awhp (e85, 35psi) after further mods to the build.

Edited by minesskyline
added more stuff
7 hours ago, minesskyline said:

I made 780awhp (e85, 29 psi), 650awhp (93 octane, 22psi) on a conservative tune on twin EFR 6758s. RB26 (forged internals, stock head), 1500cc injectors, twin pumps. I've since been able to get 850awhp (e85, 35psi) after further mods to the build.

Damn that sounds nice, how's the response on your setup?

  • 2 weeks later...
3 hours ago, lukecabrera said:

Sorry to revive this but I've decided to go forward with twin 6758's for my build after further research. 

Out of curiosity what fuel pumps and ECU are you running?

Thanks

Twin Bosch 044, Haltech Elite 2500

16 hours ago, lukecabrera said:

Sorry to revive this but I've decided to go forward with twin 6758's for my build after further research. 

Out of curiosity what fuel pumps and ECU are you running?

Thanks

Nice, please update with build details and results :)  As you know, there is very little info out there on this kind of setup

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


  • Similar Content

  • Latest Posts

    • I can see between the water jacket and cyl 3 there wasn't a hard line of combustion gas. It certainly appears that the issue is coming from there. Yes, checked the tension. All at 100ft lbs where I set them 5 years ago. These blocks can crack but generally when they have been over bored. Mine is only 0.5mm oversize at 89.5mm. They break between cylinders around the 91mm mark. No sign of that with mine. My gut feeling is the head gasket lifted a while back when the studs stretched and i bandaided it by retorquing the studs. It's finally let go.
    • My Nismo 1.5 churps a bit on reverse turns when cold, but besides that feels like a stock diff.
    • Yes, but, I paid cash and I'm pretty sure the receipt was in the bin 10 minutes after I got home Note to self, keep all receipts
    • Bunnings would have just handed you your money back on that one!
    • So, version 4 intake is on its way I was looking at these a while ago but at around $200 or more it was a little pricey for something that might not work, but, I had it in my watch list, but, I got a message saying it was on special, and I had a code thingie to use, it eventually came in at $120 delivered, so BAM, BUY NOW.....LOL I'll need to have a look when it arrives but I feel it will "look" better than what I currently have, as it comes with a PCV fitting, so I will be able to get rid of the alloy pipe that goes to the throttle body with the PCV fitting  Well, that's what the voices in my head are telling me  Oh, and this happened today Yeap, it was a Trojan, and it was cheap, so I headed back to the hardware store and actually spent a little bit more on a heavy duty,  one that was actually recommended by a plumber mate, a Cyclone one with a fibreglass handle that is actually rated for clay The broken shovel will eventually be "modified" into a short handle shovel
×
×
  • Create New...