Dyno Results: 196rwkw For Basically Stock Rb25det

[Taso84]

MODS are:

Stock boost controller solenoid grounding (disable dual stack boost)

600 x 300 x 76 Hybrid copy cooler

Apexi air filter (no CAI)

(2.5 or 3)inch SS front/dump pipe with split from Batmble

3.5inch Apexi CATBACK (Stock CAT)

Excedy heavy duty clutch

Recently rebuilt stock Diff

Stock turbo, ECU, injectors, fuel pump

No internals

Here is the result

Looking at the AFR apparently the its meant to drop to 12 under load, so its leaning abit. Only by 1pt so I dont think its too dangerous... I can still give it the odd thrashing but I prob will be too scared too.

I reckon the fuel pump is being maxed out coz injectors should be able to handle it and i can't think of nething else. What are ur thoughts ppl?

A special thanx also to RAY from RE customs, he is seriously a top bloke. The most trustworthy mechanic I have ever known... and ive known alot.

P.S. forgot to mention that boost reached 8.5psi (stock boost controller and actuator)

Edited September 27, 2006 by Taso84

[nfi]

1 AFR is a lot...

In my opinion that is far to lean and seriously risking detonation with even a slight batch of bad fuel or a hot day/hard thrash.

I would suggest that the person that tuned your car doesn't really care about it blowing up unless he is not really sure what he's doing because that is seriously lean. I would almost bet that a few laps on the track and it would be the end.

If you buy a power fc or at least buy a safc that will have the problem solved

Actually, if you want to do it on the cheap, you might even get away with a fuel pressure reg as that will add fuel everywhere which is what you need.

MODS: Please edit post if I have written something inappropriate.

[nuffsaid]

Thats pretty amazing, I have almost the same power mods (no FMIC) on a GTT and am only getting 165.

I dont know whether this is true but an AFR of 13 might be a little dangerous, I think 1 point is actually quite a difference.

Great result anyways dude

[satanic]

Is it just me or does this sound a bit wrong... 200rwkw from exhaust, cooler and pod?

Yes yes, dyno is only a tuning tool... but still, a number is still a number.

[Abo Bob]

Yeah methinks the number is not realistic but that's not important. If that is right it is running way too lean and death is only around the corner.

I would expect the AFR's to get gradually leaner if the fuel pump was no good but they are like that right the way across.

What colour is your exhaust? Is it grey or black? If grey try to describe the shade.

[Anquetil]

No way you have 196rwkw at 8.5PSI with exhaust, IC & filter.

I'd say your at 155-170.

[mad082]

if you look at how much it is leaning out, i could say that thats about right.

i got 204kw out of the same mods but with 11psi. straight after i went on my mate went on with his 33. same mods, same dyno operator and he got 175kw. some cars just make more than others.

[satanic]

It's the special dust the importers selectively sprinkle on some cars and not others...

[Bunta]

no it is the fact that it is running lean...more power but dangerous, that combined with a happy dyno (More and more of these around) explains the figure!

[QRI05E]

Thats an impressive power output for such little mods... my completely stock R33 with only a full exhaust and split dump got 165rw/kw (7psi).. ill be putting a FMIC, 10psi and PFC + tune at the end of the year... i hope I hit 200+rw/kw

[mad082]

no it is the fact that it is running lean

the leaner the AFR's the more power it has, to an extent, so yes that would be a major cause of it.

[NickR33]

you have to ask how it is running so lean with the stock ecu and no piggyback... my tip would be dying fuel pump

[Kennedy]

you have to ask how it is running so lean with the stock ecu and no piggyback... my tip would be dying fuel pump

What he said.

Do your pump and FPR and you'll be safe to run that consistently. I wouldnt even crank uop the boost for fear of R&R. Congrats on haveing one of the better 33's. Mine is like that too. I got 180 only with a cat back and pod.

[JVP]

i had my car at RE's to get a power run

it was running way leaner than that and Ray then told me to fix it or f*kn BANG!

so i did. which was fuel pump.

ray knows what he is talking about.

[Stage Flight]

I've heard that no two dyno's will give the same result. Could it just be that the dyno's out, when was the dyno last tested?

[paulr33]

if the AFR is lean, then its lean.

even with 45% correction applied or being in the wrong shoutmode the car is still too lean. this would explain the power it is making. fix the leaning out and youll go back to around 170rwkw i would expect

[Taso84]

Yeah methinks the number is not realistic but that's not important. If that is right it is running way too lean and death is only around the corner.

I would expect the AFR's to get gradually leaner if the fuel pump was no good but they are like that right the way across.

What colour is your exhaust? Is it grey or black? If grey try to describe the shade.

well its meant to go down to 12AFR and stay there so If the pump is maxing out y would the AFR keep rising?

Not sure wat colour exhaust is but recently when some1 was driving behind me they said i blew abit of smoke when i gassed it like i was running rich or something.

[Taso84]

if the AFR is lean, then its lean.

even with 45% correction applied or being in the wrong shoutmode the car is still too lean. this would explain the power it is making. fix the leaning out and youll go back to around 170rwkw i would expect

yea... this is wat Ray said too

[paulr33]

yeah if your floor, its going to pretty much run rich straight away

as long the as the smoke is black its ok, just rich and thats the stock ecu so its normal (ish).

its either the pump or the fpr, try the pump

it sounds likely. mine was leaning out around 180rwkw

[Abo Bob]

well its meant to go down to 12AFR and stay there so If the pump is maxing out y would the AFR keep rising?

Not sure wat colour exhaust is but recently when some1 was driving behind me they said i blew abit of smoke when i gassed it like i was running rich or something.

The leaner it gets the higher the number.