BP Ultimate & SAFCII Dyno Tuning Results

[geno8r]

Hi

Today i got my car re dyno tuned after running BP Ultimate into it for 3 weeks. The car was previously tuned on Optimax and made 218 rwkw @12psi which was still pretty impressive.

Here is the Original Thread http://www.skylinesaustralia.com/forums/sh...ead.php?t=50725

The cars performance mods are as followed:

r33 GTS25T 95' Series 1.5

T3/T4 HighFlow VL Turbo

GTR Front Mount Intercooler

GTR Fuel Pump

Apexi S-AFCII

GReddy Profec B Boost Controller

3" Exhaust Turbo Back

HighFlow Cat

MegaFlow Muffler Twin 2" Tip

K & N Pod Filter

Irodium Spark Plugs

Blitz Open-Atmosphere BOV

Brass Button Clutch

Locked Diff

9.5" Wide Rear Works Rims

BP Ultimate 98 Octane Fuel

Stock RB25DET engine.

Stock Headgasket, Injectors, Cams etc.

Here are the new results

I was extremely impressed with these results with the fuel being leaned out even more in this tune. A 12 rwkw gain from simply a different fuel & leaner tune.

Boost maxed out @ 12psi as you can see & was down to 10psi @ 230 rwkw due to the boost controller & internal wastegate.

The next step will be Power FC & some injectors, up the boost to say 18psi - 20psi & i should then be up for some for some f*** off power heheh

Cheers,

[Sydneykid]

Was the inlet temperature really 56 degrees?

[geno8r]

I dont know sh!te about Inlet Temp Sydneykid but i dont think the Computer lies... Whats you thoughts? IT 56 Good, Bad? All i know 230 rwkw is good :wassup:

[Sydneykid]

If I wanted to cheat on the dyno results I would stick the air temp sensor behind the radiator and pick up 10 rwkw.

What was the air temp for the Optimax dyno graph?

[geno8r]

It was 29

The Optimax Dyno sheet is here

http://www.skylinesaustralia.com/forums/sh...ead.php?t=50725

[Sydneykid]

It was 29

The Optimax Dyno sheet is here

http://www.skylinesaustralia.com/forums/sh...ead.php?t=50725

Yep, that makes sense.

Optimax, ambient temperature 25 degrees, inlet temperature 29 degrees

Ultimate, ambient temperature 25 degrees, inlet temperature 56 degrees

[slow_r31]

lol, nothing like fiddling with the shootout mode paramaters to make the customer happy with the tuning result

[B-Man]

Stock ECU ???

[geno8r]

Stock ECU ???

You betcha. Read mods @ start of thread, SAFCII is the piggy back ECU.

Here's the other Dyno graph too.

[B-Man]

Sorry - I should have picked that up from the SAFCII bit

[GRUNTN]

genor80r what does pulse do for u or is this first reading u have ever had - dont get me wrong that is a top power figure even if it was , just wanna know more about pulse and where u been with your skyer , to be so proud-newcastle

:thumbsup:mobil senergy8000 fuel nothing but guys-tested and proven

[geno8r]

the pulse staff are top guys & i've had good results with'em. Simple. My point on the other Thread is that it is unnecessary to go to Sydney.

[Sydneykid]

That's a great result from the SAFC and a good tuner, those A/F ratios are almost perfect.

[GunMetalR33]

Be very carefull with 12 to 1 a/f ratios. If you get a dirty injector or your full pump starts to ware you could lean out to far. 12 to 1 does not allow any room for a buffer. I have mine just under 12 to 1...

Correct me if I am wrong guys, if so then I am back to the dyno to lean out...

You betcha.  Read mods @ start of thread, SAFCII is the piggy back ECU.

Here's the other Dyno graph too.

[Lady wzr]

Hey GUYS I got my car dynoed with normal premimium fuel and then elf racing fuel it did 10kws faster.. impressive hey. damn shame elf fuel is so expensive ...

[INASNT]

Yep, that makes sense.  

Optimax, ambient temperature 25 degrees, inlet temperature 29 degrees

Ultimate, ambient temperature 25 degrees, inlet temperature 56 degrees

LOL well that just proves that there really ISENT a difference between the fuels.

Next comparision?

[geno8r]

LOL well that just proves that there really ISENT a difference between the fuels.

Well with Optimax the car couldnt be tuned any more than 218 rwkw with 12psi due to pinging, the tune was maxed out for 12psi. The new tune with the better fuel allowed for a leaner tune which resulted in 230 rwkw. The temperate was hotter on 230rwkw yet still putting out more power with a leaner tune. If the IT was even cooler *ie, was 29* i cant see why i wouldnt get an even larger rwkw. Please correct me if i am wrong.

Cheers,

[INASNT]

No, if the IT on the 230 run was set at 29 like the other run you would have got a lower power reading. Shootout compensates for differences in ambient temperatures, so if on the 230 run the IT was chaged to 76 degrees you would have got a higher reading than 230 coz its compensating for the apparent higher intake temperature, coz the hotter the air the less dense it is and the less power you will make in the real world

[geno8r]

Ok fair enoughs INSTANT. The difference in IT temperature was 29 degree's, to how much rwkw difference that would make i dont know, but i might talk to the tuner today & see what he says.

This IT business is a learning experience for me, now you say the higher IT temp will give a higher rwkw on the dyno spit out.

Now just so i have this right, lets say the AT was 25 & the IT was 150 degrees & the car was making 200 rwkw on dyno rollers. The dyno then makes the final readout for rwkw much higher than 200 rwkw because 150 degrees is very hot & a cooler temperate would give more power rwkw. To what temperature does the computer work out it to be to get the final Max power reading? I'd love to know how this all works exactly.

This is a PM from Sydneykid to me.

Hi, the A/F ratios are great, good results from the SAFC and the tuner obviously knows his stuff.

The temperature comment refers to the differences in the inlet temperature when the ambient temperature is the same. Maybe you should ask the tuner, it may be something simple like the Optimax run was done with the bonnet open and the Ultimate run was done with the bonnet closed. Or maybe he had the dyno fan in a slightly different position.

What I am trying to do is to get the guys on the forum to really analyse the results. ALL of the information on a dyno printout is important and you must look at ALL of it so you get a valid comparison. You can not simply look at the power result and say wow that's better.

Hope that help

Cheers,

[INASNT]

Ok fair enoughs INSTANT. The difference in IT temperature was 29 degree's, to how much rwkw difference that would make i dont know, but i might talk to the tuner today & see what he says.

This IT business is a learning experience for me, now you say the higher IT temp will give a higher rwkw on the dyno spit out.  

Now just so i have this right, lets say the AT was 25 & the IT was 150 degrees & the car was making 200 rwkw on dyno rollers.  The dyno then makes the final readout for rwkw much higher than 200 rwkw because 150 degrees is very hot & a cooler temperate would give more power rwkw.  To what temperature does the computer work out it to be to get the final Max power reading?  I'd love to know how this all works exactly.

This is a PM from Sydneykid to me.

Cheers,

Look at it this way, if the tuner did some work on ur car and wanted to show you how much power you have gained from his work, when i reality he didnt do didly squat, he can place the temp probe for the IT on the exhaust manifold and do the dyno run. So the actual intake air going into the engine could be 30 degrees but since the IT probe is reading 150 degrees the computer will give you a higher reading to compensate for the apparent higher intake temp it thinks there is.

Shootout is meant to used so that you can compare the power a car makes in the desert to another car in antartica, but its very easy to bs results 2.