Jump to content
SAU Community

SA Wasteland?

MM2death

By MM2death,
in South Australia

 Share

Recommended Posts

KISIN Veteran

KISIN

Posted
Posted (edited)
There's a LOT of variables.

Placement of inlet air temp sensor, how the car is strapped down, tyre pressure, shootout mode run etc etc.

Its fairly easy to see a variance of 5 even 10rwkw depending on the above.

I believe it actually reads pretty much spot on if not a touch low. R33's with PowerFC's generally see 190-200rwkw; with cam gears or a 13+psi 210rwkw is achievable.

Mine was maxing out the afm and injectors at around 180rwkw; another mates also max'd his out at the same power.

BUT just because the afm is max'd out it doesn't mean you can't go on to make 220rwkw with the stock afm. Its just that the tune is a tad crude but it works.

Agreed, and i know/understand that. Its just i have seen a few cars get roughly 20kw less at some other places.

Edited by KISIN
  • Replies 6k
  • Created
  • Last Reply

Top Posters In This Topic

Popular Days

Top Posters In This Topic

Popular Days

Posted Images

Cubes Grand Master

Cubes

Posted
Posted

What dyno Kisin?

Graham Wests dyno reads 'slightly' lower than Shauns and thats a mainline which is known for reading lower than DD Dyno's.

So I'd say the dyno thats reading 20rwkw less which is a hell of a lot has something funky going on with inlet air temp sensor placement, shoot out mode or lack there of or strapping it down too hard.

Strapping it down TOO hard WILL definitely give a lower reading. 20-30rwkw is not uncommon.

Maybe the person strapping the car down hasn't got all that much experience with the dyno?

Which is why Dyno's are only good as a tuning tool; too many variables.

With regards to shootout modes. 'Generally' the lower the shootout mode the lower the same car will read; shoot 6 vs shoot 8 for example. Shoot8 will read slightly higher. This was shown at a boostworx dyno day when Chop's LS1 was run up in Shoot6 mode and made 20-30rwkw less than in shoot8F.

For what ever reason I've noticed Shaun usually runs in Shoot6 mode (should be shoot6f). Possibly more so for tuning reasons as the higher the shoot the less aggressive the ramp. Thats the way I understand it anyway. :ninja:

Cubes Grand Master

Cubes

Posted
Posted

Kissin,

Same dyno, same customer, same shootout mode, very similiar amb and it temps.

Only variable (that i'm aware of); different strapper downerer and 24rwkw :ninja:

As you can see; only good for a tuning tool; dyno days are a fairly good indicator as they have a common variable; same day, same operator and strapper etc.. I'm not a believer of placing the IT temp sensor on the pod or airbox as it doesn't reflect 'real world' performance.

On the road; the car with the pod sucking that hot air doesn't have its power magically increased because its sucking hot air; power will be down.

So what I'm getting at is two cars side by side same gear same speed; one with a sealed airbox and cai; another with a POD. On the dyno they make identical power. Who's going to out accelerate who? My bets are on the car with the sealed airbox even though it made the same power as the car with the pod due to the dyno's power correction based on IT temps.

Hope that makes sense.

post-382-1185096868_thumb.jpg

post-382-1185096882_thumb.jpg

KISIN Veteran

KISIN

Posted
Posted
Look the way i see it, Use the same dyno everytime, As long as it's tuned on the same dyno it's all good! And when a a Dyno day......... don't take it too serious, Doesn't make your balls any bigger just cos you have more power!

.....yeh it does :)

haha, nah i know what u saying.

sinistaGTR Grand Master

sinistaGTR

Posted
Posted
Look the way i see it, Use the same dyno everytime, As long as it's tuned on the same dyno it's all good! And when a a Dyno day......... don't take it too serious, Doesn't make your balls any bigger just cos you have more power!

Haha yes is does daz, just cause you dont have much lol....

Guest
This topic is now closed to further replies.
 Share
Go to topic listing


  • Similar Content

  • Latest Posts

    • TurboTapin
      Leaking Rear Subframe Bushing?

      By TurboTapin · Posted

      Perfect, I'll get to it this winter then at the same time as I weld on my anti squat kit. 
    • SeanR32GtSt
      R32 only blows hot air

      By SeanR32GtSt · Posted

      Alright so my 32 only has one temperature no matter what degree you set it to. I’ve tried disconnecting the servo motor arm and moving it either direction and got no change. I’ve fixed the leak in my AC and re charged it and with it on and clutch engaged it still blows hot even though the low pressure pipe going to the firewall is ice cold. Both heater core hoses are hot while running as well. Diagnostic code showed 24 for intake air temperature sensor. Anybody got any ideas?
    • Milkmun
      Wires cut underneath shifter cover

      By Milkmun · Posted

      Not oem, just bin them.
    • GTSBoy
      Does RB25DE Neo lower intake work with RB25DET Neo Upper intake manifold?

      By GTSBoy · Posted

      I said Garrett style. Not Garrett genuine. And something in the G30 550 range is what you want. Not those pokey little old fashioned T28 sized things. The intake ports in the head are small. There is little benefit in fattening up the runners and leaving ths actual ports small. Just run what you've got. And on the subject of Nistune vs Haltech etc..... You know you can control the transmission with decent standalone ECUs these days, right? No need to keep any of that old Nissan bullshit. Don't get me wrong - I use Nistune on my Neo. But it is a DET, so the number of bodges and workarounds I had to do to make it work in a chassis without ABS, TCS, etc, is quite small compared to the herniated arsehole you will have trying to make it work on a motor that doesn't have some of the things that the turbo ECU wants to see. Just easier to bite the bullet and go aftermarket outright.      
    • GTSBoy
      Baron's R34 GT-R build thread - car in Japan for 5 years -_-

      By GTSBoy · Posted

      Hmm. Only when the f**king thing is actually working. Still can't find the leak. And that's with dye being put in the last 3 times!
×
×
  • Create New...