HKSGT2530 Results on RB25.

[MRK25T]

I've finaly managed to get a copy of my dyno graph with the same setup as sly but running less boost:

The one below indicates boost i'm running at high and low boost

This one shows AFR:

These were the end result of tuning my car (not in shootout mode) after 4 hours on the dyno.

How does it compare to slys?

[SLY33]

mrk25t, you said your boost is set low 7psi, high 10-11psi, but on the dyno chart it indicates about 170kPa which is 17psi isnt it?

also why did you change to a Z32? i was told that they arent a restriction until you want to run high boost levels or go over 250rwkw?

[2fardown]

Kilometres Per Hour.

[RNS11Z]

Sly33: Saw your car last night @ park. Very nice car.

[DoughBoy]

Maybe it's total pressure, in which case deduct atmo pressure from the amount. 160Kpa = 1.57 bar less 1 bar = .57 bar = 8.5psi. Heh huge boost.

edit: yeah my maths is out but you get teh pic.

[Steve]

INASNT, how is the 0.82 turbine housing going? Got a dyno?

[MRK25T]

mrk25t, you said your boost is set low 7psi, high 10-11psi, but on the dyno chart it indicates about 170kPa which is 17psi isnt it?

also why did you change to a Z32? i was told that they arent a restriction until you want to run high boost levels or go over 250rwkw?

I'd be slightly disapointed if I was running 17psi and getting only a bit about 200kw. I was told that 200kPa was 1bar and 100kPa was 0.

My AFM was maxing out (5.1v) so upgraded it.

You can see that my AFR is dead straight along the 12 which is different to yours.

[SLY33]

RNS11Z, what park did you see my car? your not in adelaide are you?

Shane, had the car out for a good run tonight -nearly hit a bloody kangaroo through the hills!

-about the injectors, they are at 90%!

MRK25T- now i see why you changed, the air was cool tonight, and my AFM was maxing out by late 4k-5krpm, and it wouldnt rev nicely or make good power up top. Gonna have to get me a Z32!

2fardown- are you saying kPa is kilometers per hour?

[SLY33]

i ran a mate with same setup as me, but stock turbo, we both ran 1bar, he has rwkw in the 190's, i had an extra person onboard and big heavy 19's and even with the AFM maxing out, i still pulled away reasonably. Cant wait to get it all sorted and retuned with the new dump and Z32 AFM.

[whatsisname]

Time for a Z32 AFM & some 550cc'ers.

[Guest MFX_R33]

MR25KT,

I am running 17 psi and only making 205 kw@ rears (but Dyno's aren't Dyno's anyway), but it depends on the turbo and how it makes that boost. My turbo is a high flowed standard, and it is definitley past it's efficency.

Jeff.

[RNS11Z]

SLY33, there is white r33 in qld with its plates as your nick and a massive front mount. My bad i confused it with your car. I didnt know u were in SA.

A note on this z32 air flow metre, we tried 3 different z32 air flow metres on this r33 skyline and it did not make any power difference at all. Supposedly z32 and r33 air flow metres are the same.

[Guest INASNT]

SLY33, there is white r33 in qld with its plates as your nick and a massive front mount. My bad i confused it with your car. I didnt know u were in SA.

A note on this z32 air flow metre, we tried 3 different z32 air flow metres on this r33 skyline and it did not make any power difference at all. Supposedly z32 and r33 air flow metres are the same.

it wont give u more power but give u greater tuning resolution so it wont max out at 5000rpm

[MRK25T]

MR25KT,

I am running 17 psi and only making 205 kw@ rears (but Dyno's aren't Dyno's anyway), but it depends on the turbo and how it makes that boost. My turbo is a high flowed standard, and it is definitley past it's efficency.

Jeff.

Indeed Jeff. I had a high flow before this turbo and ran more boost and achieved less power - I was running 0.8bar with that turbo.

[ABuSD]

hey guys i know stuff all about being a mechanic, looks like some of u have really bad results while others have good results. Seems like most of u like to blame dynos and such, but id say what it would come down to is to blame the tuner?? Id say there are some pretty bad tuners out there, id say some even work for big, well known workshops. Just my 2 cents.

Am i totally off track? Let me know what u think!