Jump to content
SAU Community

Dyno Run!

r32matt

By r32matt,
in Engines & Forced Induction

 Share

Recommended Posts

  • Replies 58
  • Created
  • Last Reply

Top Posters In This Topic

Popular Days

Top Posters In This Topic

Popular Days

Posted Images

WazR32GTSt Grand Master

WazR32GTSt

Posted
Posted

thing is.. according to the dyno graph, it only runs lean up top, and by then its already made most of its power...

so its power isn't really coming from the fact that its running lean...

in other words, the rb20 is makign power for another reason. because its just in really good condition? possibly..

rb20 ftw!!!!!!!!!!

where's Roy? he'll jump in here soon for some rb20 lovin :D

Link to comment
https://www.sau.com.au/forums/topic/137660-dyno-run/page/2/#findComment-2566222
Share on other sites
VLSteve Enthusiast

VLSteve

Posted
Posted
Yeah im going to get a new Fuel Pump very soon. Then finish the zorst off with a 3 inch Front/Dump pipe and Hi Flow Cat. Raise the boost to 14psi and get a tune. Should be sweet then :D

Thats pretty good Matty boy! Now take it down the drags :D

Link to comment
https://www.sau.com.au/forums/topic/137660-dyno-run/page/2/#findComment-2566235
Share on other sites
Fugi Community Regular

Fugi

Posted
Posted

Yea well im so glad to see a rb20 with those results. I own a rb20 my self and have basic mods and bout a power fc and one of those turbotech BC try it out and get it dyno'd.. but yea i dont think i will get those results ill post them up. i think your one of those guys with freak engins. lucky c**t.

Link to comment
https://www.sau.com.au/forums/topic/137660-dyno-run/page/2/#findComment-2567426
Share on other sites
pnblight Mentor

pnblight

Posted
Posted
Yeah it is running lean but the power is still up there before it starts running lean...

I might get some new tyres next week and take it down the 1/4 Mile :)

MATT nice work and it does look at 150km's you hit the limit of the fuel pump, BUT there is a posible little thing you can do to help will the fuel pump until you can replace it. That is to run a good heavy gauge power supply wire to your fuel pump as the standard system normally has to much volt drop across it (meaning your not getting full 14v charge volts to the pump) you can use the exist power system to switch a relay controlling the heavy gauge if you like and also ground the pump well. This is not a total solution but can offen gain quiet abit of exa performance out of the exist pump and will definitely help went the new pump going in. (voltage to torque ratio is a square root relationship meaning a little voltage drop will lose a lot of torque).

As for be lean BS running 12:1 through the majority of the power range is great and safe, and at only 12psi you could quiet easily run leaner without a problem. The only problem is the lean out trend at the end as you have already identified.

pete

ps i run 12:1 at 500 to 530rwhp for 2 years at 18 to 20psi no problems.

Link to comment
https://www.sau.com.au/forums/topic/137660-dyno-run/page/2/#findComment-2567674
Share on other sites
The Mafia Grand Master

The Mafia

Posted
Posted
Nice result! I pulled 195.4rwkw in my 32 and thought I was doing well... but you don't even have a fuel pump or tuned ecu!! Must be happy about that.

yeap, and you must be happy about the wanker dyno operator giving you bullshit figures.

Unless your factory ECU has been remapped, and the turbo either high flowed or replaced with a RB25 turbo, then your figure is bullshit.

I bet any of these "figures" are barely able to pull over 100mph down the quarter.

Link to comment
https://www.sau.com.au/forums/topic/137660-dyno-run/page/2/#findComment-2570522
Share on other sites
kamakazi Collaborator

kamakazi

Posted
Posted (edited)

ok matt is running an r34 steel wheel turbo and i was there it did pull that power and have been in the car and it feels as quick as mine, i have an r32 with an rb25 making 197 rwkw. i have no doubt that the dyno is reading correct

It was also run at the pole position dyno day so i doubt they mucked the figure up when my car was run before matt and a soarer ran after matt and power figures for both my car and the soarer were around what they expected.

Edited by kamakazi
Link to comment
https://www.sau.com.au/forums/topic/137660-dyno-run/page/2/#findComment-2570603
Share on other sites
r32matt Collaborator

r32matt

Posted
  • Author
Posted (edited)
yeap, and you must be happy about the wanker dyno operator giving you bullshit figures.

Unless your factory ECU has been remapped, and the turbo either high flowed or replaced with a RB25 turbo, then your figure is bullshit.

I bet any of these "figures" are barely able to pull over 100mph down the quarter.

Mafia it sounds like your really f**ken Jealous of my RB20! Just becasue your RB25 wont produce that much power on those mods doesnt mean you have to have a cry!

And if you actually READ! I wrote that I have a R34 Turbo!! How about you put up your Dyno reading and your Mods and lets see what you get?

Edited by r32matt
Link to comment
https://www.sau.com.au/forums/topic/137660-dyno-run/page/2/#findComment-2570670
Share on other sites
Psymon Mentor

Psymon

Posted
Posted

Thats an awesome result. Must be a relatively fresh engine. My question is how much difference in power output could there be between a fresh engine and an engine thats starting to get tired? In fact i started a thread about it!

http://www.skylinesaustralia.com/forums/in...howtopic=138087

Link to comment
https://www.sau.com.au/forums/topic/137660-dyno-run/page/2/#findComment-2570995
Share on other sites
R31Nismoid Grand Master

R31Nismoid

Posted
Posted
Your questioning Hyperdrive's (im guessin as its in Malaga) dyno??

It use's shootout mode and is known as a very realistic dyno, doesn't read high at all dude.

Its well known that shootout mode applies some exceptionally poor correction making results higher than they should be.

demit, how come i get 167, with more mods, on 14 psi, on a engine that so many people have told me is in really good nick.

because yours is realistic dude :)

I'd reckon you both would run extremely similar times down the track...

And same dyno same day, you'd both have power figures close to each other :D

Link to comment
https://www.sau.com.au/forums/topic/137660-dyno-run/page/2/#findComment-2571022
Share on other sites
fEkuaR Experienced

fEkuaR

Posted
Posted (edited)
Mafia it sounds like your really f**ken Jealous of my RB20! Just becasue your RB25 wont produce that much power on those mods doesnt mean you have to have a cry! Did you want a tissue?

And if you actually READ! I wrote that I have a R34 Turbo!! How about you put up your Dyno reading and your Mods and lets see what you get?

Im going to the drags very soon and when I get my quarter mile time it will give you something else to cry about!!!

He isnt having a cry about anything and he actually owns a rather quick car and knows what you need to do to achieve that sort of power... He is being realisitcs considering your modifications. So either there is more there that you are unaware about or its possible the reading is incorrect.

Edited by fEkuaR
Link to comment
https://www.sau.com.au/forums/topic/137660-dyno-run/page/2/#findComment-2571087
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing


  • Similar Content

  • Latest Posts

    • Duncan
      S1 rb25/s14 starting problem

      By Duncan · Posted

      Depending on how long the car sat it is very possible for injectors to be stuck open or closed, I'd get them cleaned and flow tested. Other than that, obviously when the loom changes and the car doesn't start any more....the loom is suspect so some tracing / comparing may be required
    • 25zenki
      S1 rb25/s14 starting problem

      By 25zenki · Posted

      Harness is for a s1 Rb25det, and it is engine and lower harness.  the old harness had broken off plugs and was in very rough condition/exposed wires and splices etc. it is not able to be put back on the car, I could visually inspect to see if they had rewired any pins on the ecu plug. The fuel pump definitly isn’t turning off it’s an external pump and very loud you can hear it. Will look at the other harness tonight, am also going to pull the fuel rail and watch the injectors spray, will update here with what I find. Pretty sure at this point it has to be something to do with injectors because car will fire up on starting fluid and cas is clicking the Injectors. Fuel pressure is steady 43psi 
    • Waders360
      M35 Brake caliper replacement

      By Waders360 · Posted

      Sorry. Front brake calipers
    • MBS206
      S1 rb25/s14 starting problem

      By MBS206 · Posted

      Check the injectors flow evenly, and are actually flowing what you and the ECU think they should be flowing. If it's starting up on starter fluid, you have a fuel issue. Is it possible under cranking your fuel pump is turning off?   The harness you replaced, is that the whole engine harness? Do yourself a test, and drop the old harness on and plug it into the Z32 ECU. It's possible they've wired things different. From memory S1 to S2 is different in RB25 and you may have a wrong loom
    • 25zenki
      S1 rb25/s14 starting problem

      By 25zenki · Posted

      I haven’t pulled the injectors to watch them spray yet but they are clicking from the cas and all of the spark plugs are wet with fuel. I’ve thought the cylinders were being flooded from the beginning and was hoping fuel pressure would fix it. Tonight I am going to pull the rail and watch the injectors spray. Don’t know how to test/diagnose if the plugs are firing in correct sequence but that should be a timing thing and as far as timing goes my car still has the half moon for the cas can only install it 1 way. And my mechanical timing is 100% correct I posted photos above. Confirmed with the balancer on and off. 
×
×
  • Create New...