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R33 Dyno Results - POWER DIPS!

HKS-R33

By HKS-R33,
in Engines & Forced Induction

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leech_ Grand Master

leech_

Posted
Posted

Finally got the dyno graph up the following is how it appears

Blue 4th Gear - Bone stock nothing done no AFR was done on this day 141ish. done 7 months ago - note the dual stage kicking in.

Red - 4th Gear - 3" dump pipe, high flow cat, hks super dragger exhaust, K+N Panel filter, Turbosmart bleed valve set to 9psi

Green - 3rd Gear - 3" dump pipe, high flow cat, hks super dragger exhaust, K+N Panel filter, Turbosmart bleed valve set to 9psi

Conclusion: In stock form looks pretty clean. add a bit more boost and a few other things the ECU decides to go into over protective mother mode and pump way to much fuel in by the end of the run it looks like it was running at about 10.5 which is wayyyyyyyyyy to rich but still making ok power though you cna also see it starts getting a bit wavey up top.

Putting the FMIC on soon will probably just make it worse too so yea i will be looking at least an SAFC if not something else. Does anyone have any feedback on a tuned r32 ecu as the 33's cant be tuned from what i have been told. i think one of the guys toshi posted up in the for sale area that he can re-program them for a couple of hundred dollars which would be alot better than a SAFC providing its tuned right wouldnt it ???

Sydneykid Grand Master

Sydneykid

Posted
Posted
Finally got the dyno graph up the following is how it appears

Blue 4th Gear - Bone stock nothing done no AFR was done on this day 141ish. done 7 months ago - note the dual stage kicking in.

Red - 4th Gear - 3" dump pipe, high flow cat, hks super dragger exhaust, K+N Panel filter, Turbosmart bleed valve set to 9psi

Green - 3rd Gear - 3" dump pipe, high flow cat, hks super dragger exhaust, K+N Panel filter, Turbosmart bleed valve set to 9psi

Conclusion: In stock form looks pretty clean. add a bit more boost and a few other things the ECU decides to go into over protective mother mode and pump way to much fuel in by the end of the run it looks like it was running at about 10.5 which is wayyyyyyyyyy to rich but still making ok power though you cna also see it starts getting a bit wavey up top.  

Putting the FMIC on soon will probably just make it worse too so yea i will be looking at least an SAFC if not something else. Does anyone have any feedback on a tuned r32 ecu as the 33's cant be tuned from what i have been told. i think one of the guys toshi posted up in the for sale area that he can re-program them for a couple of hundred dollars which would be alot better than a SAFC providing its tuned right wouldnt it ???

You can't use an R32GTST ECU in an R33GTST, no VVT for a start, plus the pin outs are totally different. I should point out that in my opinion any ECU tuning not done on line (ie; off the shelf chip) is a GUESS, and every engine is different.

I can't see how an FMIC will make it worse. If it lowers the inlet air temps, you may be able to run lower boost (decrease the airflow) and make the same (or maybe even more) power. Less airflow would mean the standard ECU would resort to a lower (or non existant) R&R strategy.

The only time an FMIC would make it worse is if you choose to allow the lower resistance to increase the boost. But that is your choice, not the FMIC's.

:)

leech_ Grand Master

leech_

Posted
Posted
Hey guys, i know this might sound side tracking abit...but im just curious, does it mean that running anything more than stock boost on standard ecu, will cause the car not to perform as well?

Assuming that the ecr33 has been modified with stock internals?

how do you mean it wont perform as well naturally it is performing better as you are making more power however you are probably not doing it the safest/best way if you are not using some sort of fuel/engine management

benl1981 Grand Master

benl1981

Posted
Posted

I was wondering would these power dips show up under WOT in 2nd gear aswell you think?

Also - I am thinking about getting a powerfc...

but I saw on the UAS website there is a graph for a car with more mods than mine and it is going well on stock ecu!!

208RWKW with good power curve!! What's wrong with mine and everyone elses??

FROM UAS site:

SKYLINE R33 GTS-T

* UAS RB25 Plenum & Intercooler

* 12 Psi

* Standard ECU

* Standard Turbocharger

* Cat Back Exhaust

* Pod Filter

208.4 KW AT THE REAR WHEELS

pmrbplenumkit5.gif

paulr33 Grand Master

paulr33

Posted
Posted

its in shootout mode with an intake temp of 34 degree's so its rounded to compare what power it would make at 25deg inlet temp, so its probably reading higher than it normally would. the plenum wouldnt make an ounce of difference and the stock dump would be a nice big restriction. heck my stock dump is holding me back at 170rwkw with powerfc

courier33 Enthusiast

courier33

Posted
Posted

Brought my Skyline 4 weeks ago. Was stock standard but now has:

K&N Pod filter

Jasma cat back exhaust

Split dump and front pipe

Ball type boost control valve

Had its first dyno run this morning in 14 degree weather and made 178 rwkw.

Boost was set to 12 psi and my dyno chart doesnt show any of these dips in the power. The torque is also quite flat.

The mixture was VERY rich though, and the tuner said there was another 20kw to be found by leaning it out in the upper RPM.

Looking at upgrading to a front mount intercooler next but still trying to find an aftermarket one that has the GTR style end tanks, not the ones that look like only the bottom 3 rows are being used.

benl1981 Grand Master

benl1981

Posted
Posted

It just seems like that is a lot better than the curve most people are getting. I think I am getting rich and retard at around the 10psi mark with only a R34 intercooler. If you compare the UAS graph to others it seems that it is a very good stock ecu. I'm not talking about power. I'm more looking at the shape of the curve..

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