R33, 3071r, Dyno Results

[Robo's]

Just got off the dyno last night, here are my results.

Car is with normal mods, FMIC, exhaust with split dump, 3.5 inch, hi flow cat, PFC, Jaycar Boost Controller, Turbo is 3071R

On low boost it spat out 239.5rwkw at approx 15psi. This is the lowest psi i can go, its running straight from the actuator rod. AFR where quite nice, around 11.8. Flicked the switch to hi boost and first run it went 269rwkw, then added a little more boost and i settled on 275.2rwkw at approx 22psi falling away to 19psi right at the top. The difference between hi and low boost is like chalk and cheese, upto 40rwkw, the difference on the road is fantastic.

Looks like power is dropping after 6000rpm on hi-boost, not sure what the problem is there.

dyno.pdf

Edited October 20, 2008 by Robo's

[Adriano]

My guess of a 3071 is that the turbo is running out of flow. Interesting that the low boost power run is tuned richer than the high boost run Good power though, should be a rocket. Is it a stock motor?

Edited October 21, 2008 by Adriano

[Robo's]

I tune it myself so we didnt spend anytime tidying up AFR's as they where pretty close. I probably should add some fuel into the hi boost settings and take some fuel out of the lower boost settings.

Yep stock motor with stock injectors using a FPR.

Yeah its pretty quick once you get traction in 3rd and 4th. Have some slicks at home, i'll be happy with a high 11@120mph.

[R31Nismoid]

what kinda rail pressures are you running to get 270rwkw...?

[Robo's]

what kinda rail pressures are you running to get 270rwkw...?

Actually i have no idea, we have never connected a fuel pressure guage on it

[TTT]

jeebus what % injector duty cycle does the PFC say at those sort of power levels?

[Robo's]

jeebus what % injector duty cycle does the PFC say at those sort of power levels?

You don't want to know, high 90's,

[Dale FZ1]

Can you give us more data on the 3071, as in whether it runs the full size 60mm turbine, or the cropped 56.5mm version that seems to be used in the hybrid setup with OP6 copy available from various retailers?

Just be interesting to compare what you've used vs BHDave and Simon-r32

The on-road results are obviously good, though elevated rail pressures will only stretch the injector capacity so far... be worth testing to see what pressure you are using.

cheers

[dangerman4]

lol bout time you got it on the dyno.

ive been waiting for ages to see the results thru a manual.

nice work, but i think you have more in your setup somewhere.

the actuator was only a 14 psi garret item so maybe a 18psi will assist the drop issue, and also help it spool sooner.

[Robo's]

lol bout time you got it on the dyno.

ive been waiting for ages to see the results thru a manual.

nice work, but i think you have more in your setup somewhere.

the actuator was only a 14 psi garret item so maybe a 18psi will assist the drop issue, and also help it spool sooner.

Lol

She boosts up quite quickly, have 20psi by 3500rpm. Max power is at 6000rpm, then she starts to fall over. I wonder is the valve springs are shot??

[R31Nismoid]

possibly... although unlikely. mine held fine as have a lot of others over 20psi for ages.

actuator @ 18psi wont hurt, and its easy done

[dangerman4]

agreed ive ran mine on my new turbo to 27 psi on stock springs without issue.

hmmm

thinking cap on...

[Adriano]

Speaking of this, does anyone know which springs start to float first in an rb? Inlet or exhaust?

[Finchy33]

Can you give us more data on the 3071, as in whether it runs the full size 60mm turbine, or the cropped 56.5mm version that seems to be used in the hybrid setup with OP6 copy available from various retailers?

cheers

+1

[dangerman4]

gcg built, vg30 exhaust, gt30 front, pass, pass, next, pass.

[BHDave]

nice result.

Afrs are still safe on high bost. You could reasonably lean out your low boost ratios.

Questions:

What turbine housing?

What turbine?

Your power curve looks very similar to skylinecouples -5023 with the .8odd turbine housing but your low/mid range power matches mine with the .63 and runs away at the top end....

Are you seriously using stock injectors?

Edited October 21, 2008 by BHDave

[RBwhatever]

Yeah great results

But I'm on the question boat to about the injectors. What fuel pump are you running?

[Robo's]

nice result.

Afrs are still safe on high bost. You could reasonably lean out your low boost ratios.

Questions:

What turbine housing?

What turbine?

Your power curve looks very similar to skylinecouples -5023 with the .8odd turbine housing but your low/mid range power matches mine with the .63 and runs away at the top end....

Are you seriously using stock injectors?

GT30 Housing.

Yep stock injectors, running a nismo FPR

[Robo's]

Yeah great results

But I'm on the question boat to about the injectors. What fuel pump are you running?

GTR Pump

[RBwhatever]

Z32 afm also? And your clutch seems to hold up fine too?

Edited October 21, 2008 by KeyMaker