Jump to content
SAU Community

Recommended Posts

1 hour ago, Piggaz said:

Apparently 480 AWKW was the most power out of a 8374 awkw (out of an Evo) Scott has seen on his dyno.

Nick (3.0/8374) went 461, 24 psi

Pete (3.2/vcam/8374) went 457awkw, 25 psi tapering back to 21 psi (120,000 turbine speed).

I don't know. It's all dictated by that magic 127,000 RPM turbine speed. What will be more interesting will be the boost level that it'll need to get there. Going off the -5 setup, it went 441 at 19 psi. Realistically, I should have just left it there.  Boost level I'm gonna peg at no more then 25 psi, tapering back down. 

How does that power compare with Garrets and Precision etc on same dyno? Sounds lower than I would expect but apples with apples

39 minutes ago, SimonR32 said:

How does that power compare with Garrets and Precision etc on same dyno? Sounds lower than I would expect but apples with apples

I'd have to ask Scott, Simon. Haven't really asked to be honest. Pete did a back to back between a 6266/0.84 to a 8374/1.05 but the car was pretty ill when it arrived. Having driven that car in both setups, the 8374 belts it for the stuff you can't see on the dyno. Your assume the 6266 with its 0.84 ass end would be stronger down low, that is most definately not the case, let alone the transient stuff. 

If his car was anything to go off, the PTE needed 28 psi to make 460 kw and the EFR needed 21 psi to make 457. *Different dynos though.

A 9180 blows about 550 kw on that dyno for example before it taps out due to speed.

A Gen 2 3582R, PTE 6266 and a 8374 comparison would be awesome. But the fab work involved makes it a very expensive exercise.

2 hours ago, Piggaz said:

I'd have to ask Scott, Simon. Haven't really asked to be honest. Pete did a back to back between a 6266/0.84 to a 8374/1.05 but the car was pretty ill when it arrived. Having driven that car in both setups, the 8374 belts it for the stuff you can't see on the dyno. Your assume the 6266 with its 0.84 ass end would be stronger down low, that is most definately not the case, let alone the transient stuff. 

If his car was anything to go off, the PTE needed 28 psi to make 460 kw and the EFR needed 21 psi to make 457. *Different dynos though.

A 9180 blows about 550 kw on that dyno for example before it taps out due to speed.

A Gen 2 3582R, PTE 6266 and a 8374 comparison would be awesome. But the fab work involved makes it a very expensive exercise.

Honestly I'd have given a EFR8374 a go if it wasn't for all the fab... Instead I seem to be stuck with the 6262 (not being a bad thing) but now I'm up to 5 sets of cams that have been in the car haha

Latest better be awesome considering I've gone backwards 4 times in some way shape or form

3 hours ago, SimonR32 said:

Honestly I'd have given a EFR8374 a go if it wasn't for all the fab... Instead I seem to be stuck with the 6262 (not being a bad thing) but now I'm up to 5 sets of cams that have been in the car haha

Latest better be awesome considering I've gone backwards 4 times in some way shape or form

5 sets of cam setups? What are you chasing to warrant 5 different setups? You could have had a EFR setup with change.

9 hours ago, Piggaz said:

I'd have to ask Scott, Simon. Haven't really asked to be honest. Pete did a back to back between a 6266/0.84 to a 8374/1.05 but the car was pretty ill when it arrived. Having driven that car in both setups, the 8374 belts it for the stuff you can't see on the dyno. Your assume the 6266 with its 0.84 ass end would be stronger down low, that is most definately not the case, let alone the transient stuff. 

If his car was anything to go off, the PTE needed 28 psi to make 460 kw and the EFR needed 21 psi to make 457. *Different dynos though.

A 9180 blows about 550 kw on that dyno for example before it taps out due to speed.

A Gen 2 3582R, PTE 6266 and a 8374 comparison would be awesome. But the fab work involved makes it a very expensive exercise.

I really hope mine spins more than 550, be a fair bit off where I want to be. 

 

That speed "cap" is a pain. 

Owell only one way to find out ?

7 minutes ago, fatz said:

What happens when you pop a ic pipe at 25psi and over speed them? 

 

Boom? 

I doubt the boom is that inevitable, I'm fairly sure a mate had that exact thing happen on his EFR8374 drift car after he first went to one and he just lost power and his heart sunk because of the stories about overspeeding - but then realised what happened, got it sorted and carried on.  Car is still going strong.

Worth avoiding, obviously - but not necessarily immediate death.  Much the same as how you have people running around with boost leaks all over the place with stock ceramic turbo Nissans who never realised it.  I guess not having the full load on the turbo MAY take some of the edge off?

 

Edited by Lithium
2 minutes ago, Lithium said:

Lol!  

How is your car going?

Slowly. Motor is almost there I am told then its off for fab work before wiring and then tune.

Maybe July...

1 minute ago, Lithium said:

You staying with the EFR party?

I've gone a 6870 1.15 rear for now as I wanted over 600awkw. It looks like the 9280 will do the power I want when it is released so I plan on swapping back at that point.

I just wanna go fast

  • Like 3
1 hour ago, fatz said:

What happens when you pop a ic pipe at 25psi and over speed them? 

 

Boom? 

I spose sensor back to ecu, if it falls out of "x" parameters then have some sort of protection in place... whatever that may be.

What am I missing with these EFRs? 

I thought you just took a look at the comp map, aimed for a decent efficiency island for your power goal, as you do with any turbo choice, and that was that?

Can't think of when I've seen people talking about turbine speed so intently with other brands. Are the EFRs particularly sensitive to overspeeding? 

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

    • careful when running the car after a boil over. Ive heard you can lose enough coolant that it won't show the right temps because of too much air in the system (or something like that). Make sure the levels are good before trying again.  Maybe a mobile mechanic can come have a look with their scan tool ?
    • OK, just for some extra clarity - there is more than one option at Frenchy's. 1. You can buy the whole kit - with or without the actual compressor. The whole kit includes mounts, hoses, condensor, etc. That's either ~$2200 or ~$2800. No surgery required with this option. 2. You can buy just the bracket (~$600), or the bracket with the compressor (~$1200). Either of this or the above option "without the compressor" is if you already have an Echo comp or you are able to source one locally. Whatever the case, in this option, you will need surgery done on your hoses to adapt to the new compressor. When I said "the Frenchy's kit", I meant the whole kit in option 1. It is obviously somewhat more $$ than a $1500 OEM compressor. But if I had to spend $1500 on an OEM compressor, I would certainly consider spending double that to renew and significantly update everything forward of the firewall. Another option is to rebuild your original compressor. My R34 comp is currently dead and I will be most likely doing that to it if the spare one in the shed is also leaky.
    • I’m thinking that’s the route I’ll  go, thanks for the input!
    • Hey all, my 2004 Nissan Skyline 350GT overheated the other day with coolant boiling and leaking out of the coolant reservoir when I was parking. So today, I started it up again just to see if it was a thermostat/head gasket issue. After about 20 mins of running, temps were normal again, no coolant was leaking out and the upper reservoir hose was warm but my engine suddenly cut off. I checked the oil dipstick and cap when it was running and there was no white foamy residue and the exhaust did not have white smoke. I tried starting up the car again but it would only crank, similar to when I had a camshaft sensor issue just that now there’s no check engine light on the dash. Any ideas? Unfortunately I don’t have an OBD2 that can read the Nissan's programme.
    • Bump on this to not make another post, had a ‘head drain’ leak on me and have the engine out as we speak. Planning on just putting a new freeze plug back in , plug the tapped holes and just be done with that headache.    Now I still want to relieve pressure to allow oil to pass down the blocks returns easier. I’ve seen catch cans with multiple vents help folks with this issue on this forum.  I’m wanting to make my own. I have some pictures here of my setup if anyone can help how I should plumb and design the catch can I would deeply appreciate it !   rb25 Oil upgrades: 1.0mm restrictor n1 pump/billet gears extended crank collar  extended sump with trap doors/w welded fitting    
×
×
  • Create New...