Forged Rb 26 How Much Should I Be Able To Make Safetly ?

[danny14]

i just got car back from auto works i got 2 new same garret 2860-5 put on cause i blew one up

he put it on dyno at wangara autoworks WA and he tuned it to make less power and alot less responsive

still making same boost etc (20 psi)

motor roughly done 30 ooo kms

basically i think he richened it up alot maybee to much ????????

i was making 421 before when old same turbos were on

and now making like 410 with not much punch like it did have before

all this info below is off add and im wanting to know roughly how much power could this car make with 20 psi ?

CP Pistons

JUN Oil Pump

SARD 700cc Injectors

N1 Water Pump

Oil Drain Added To The Rear Off The Head Back To The Sump

TOMIE Oil Feed Restrictors

TOMIE Sump Baffles

HKS Adjustable Cam Gears

Apexi Cams

ACL Race bearing Throughout

ARP Mains + Head Studs

TOMIE Head Gasket

HKS Timing Belt<BR style="mso-special-character: line-break"><BR style="mso-special-character: line-break">Oil Relocation Kit + Cooler

After Market Radiator,

After Market Cooler Piping And Radiator Hoses,

Nismo Airflow Meters,

K&N Panel Filter In Standard Airbox

New O2 Sensors

Huge 600x300x120mm Intercooler

RECENT RETUNE USING NISSTUNE 03/06/09

341rwkw on 18 psi now, on a safe tune

DYNO PAPERS PROVIDED

[Nee-san]

410HP on -5's with a built 26 ?

Mate your probably a good 100 - 150 hp down on what you can produce.

What exhaust system are you running ?

go to the 26 dyno thread sticky.

Look at all the cars with -5's for an indication of where you should be.

[R31Nismoid]

My -5s I've just had are 19psi / 365rwkw on a track safe tune.

You could make more if you wanted to be more aggressive and more boost.

[danny14]

thats what i thought he said he didnt want to lean on it to much ?????? like the motor is built and still has plenty of life ........

i am disapointed in the performance differance who would be a good place to take it to in wa ? has anyone delt with autoworks dont get me wrong he is a nice bloke and he knows his shit but i think i can make more power than 410 hp safetly with my motor dont u think ...

[DVS JEZ]

Stock motors make that safely with stock turbos(with steel wheels)

[danny14]

so why would he tune it to only 410 hp ??

[danny14]

im off it hey f**king thing made more power slightly before but needed a tune and now get a tune and it makes less power to rich i rekon ??????n i am also running 20 PSI SHOULD I BUMP IT UP A BIT TO SEE IF IT MAKES A DIFF ?

WITH SAME NEW TURBOS I MIGHT ADD

ALSO AN IMPORTANT QUESTION HAS ANYONE HAD THROTTLE STICK ON THERE 32 GTR MINE DOES IT EVERY NOW AND THEN ERY SCARY FOOT GOES TO FLOOR HAVE TO TURN KEY OFF ONE CLICK AND PUMP ACCELERATOR AND ITS GOOD TO GO AGAIN ??

IT HAS FAIRLY HEAVY SPRINGS ON THROTTLE I DONT UNDERSTAND PEDAL FEELS SMOOTH WHEN PUSHED ??

Edited March 3, 2011 by danny14

[ahh 33 s2]

I can't see 11hp making a huge difference, have u got graph of Both tunes?

[Harey]

im off it hey f**king thing made more power slightly before but needed a tune and now get a tune and it makes less power to rich i rekon ??????n i am also running 20 PSI SHOULD I BUMP IT UP A BIT TO SEE IF IT MAKES A DIFF ?

WITH SAME NEW TURBOS I MIGHT ADD

ALSO AN IMPORTANT QUESTION HAS ANYONE HAD THROTTLE STICK ON THERE 32 GTR MINE DOES IT EVERY NOW AND THEN ERY SCARY FOOT GOES TO FLOOR HAVE TO TURN KEY OFF ONE CLICK AND PUMP ACCELERATOR AND ITS GOOD TO GO AGAIN ??

IT HAS FAIRLY HEAVY SPRINGS ON THROTTLE I DONT UNDERSTAND PEDAL FEELS SMOOTH WHEN PUSHED ??

Post up the dyno sheet and we can see if its too rich.

Tuners can be in a hard position because if they push things too hard and something fails they get a bad name. Although he really should listen to you and see what you want to do.

Not sure what your talking about in the second half of your post??

[danny14]

here is autoworx tune (recent after new turbos fitted)

[danny14]

this tune made my car alot less responsive its weird cause same turbos

[danny14]

this is tune before done at mercury motorsport brisbane

[Harey]

here is autoworx tune (recent after new turbos fitted)

Definitely doesnt look too rich. Were those two runs on different boost levels? Do you have the accompanying boost plots?

[danny14]

no i dont have boost plots but before 20 psi now 18 -19 psi

what do you rekon about it ?

[Harey]

no i dont have boost plots but before 20 psi now 18 -19 psi

what do you rekon about it ?

Interesting that the leaner dyno result made a heap less power?? Must have had a lot less timing.

What exhaust do you have on it?

I think its worth going back to the tuner and saying your not happy with it. That way you can see if he can get more power out of it or there is a restriction somewhere. You really need to let the tuner know what your expecting. The tuner might have noticed temps starting to increase and so left the tune there. He probably thinks your happy with it until you tell him.

[R32 Driver]

What ECU are you running?

[dorifticon]

Umm... Just to be clear ....

Are you attempting to pick a 10hp difference (or less than 3% difference) between two different dynos at two different workshops? Presumably on two different days?

Whatever the numerical difference, there were have to be a whole lot of change in the power delivery to pick it up using the "seat of the pants" dyno as well.

[Hanaldo]

Did you say anything about it to Alistair? I would talk to Alistair, see why he stopped there. If you have an exhaust restriction then it was possibly building up a lot of heat and making less power when he tried to put more into it. Or if he simply had no idea what had been done to your engine then he may have stopped for safety.

That power curve doesn't look right to me, what causes that? I've seen a similar graph where it was caused by valve float, and another one where the suspected cause was a leaking wastegate. Surprised nobody has commented on it yet...

[danny14]

i think it has 3 inch exhaust on it i talked to tuner he said leave it for couple of weeks make sure everything runs smoothly then he said we can talk about more power but surely i can make more power than 410 hp safetly with that motor and turbos ?

has anyone had the accelerator prob sticking ?

[danny14]

it runs a nistune