Jump to content
SAU Community

Recommended Posts

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

270hp.gif

This one shows AFR:

270hp_AFR.gif

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?

  • Replies 54
  • Created
  • Last Reply

Top Posters In This Topic

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?

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.

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?

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.

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.

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

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.

  • 8 months later...

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!

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



  • Similar Content

  • Latest Posts

    • Did this end up working? Did you take some pictures?
    • And finally, the front lower mount. It was doubly weird. Firstly, the lower mount is held in with a bracket that has 3 bolts (it also acts as the steering lock stop), and then a nut on the shock lower mount itself. So, remove the 3x 14mm head bolts , then the 17mm nut that holds the shock in. From there, you can't actually remove the shock from the lower mount bolt (took me a while to work that out....) Sadly I don't have a pic of the other side, but the swaybar mounts to the same bolt that holds the shock in. You need to push that swaybar mount/bolt back so the shock can be pulled out past the lower control arm.  In this pic you can see the bolt partly pushed back, but it had to go further than that to release the shock. Once the shock is out, putting the new one in is "reverse of disassembly". Put the top of the shock through at least one hole and put a nut on loosely to hold it in place. Put the lower end in place and push the swaybar mount / shock bolt back in place, then loosely attach the other 2 top nuts. Bolt the bracket back in place with the 14mm head bolts and finally put the nut onto the lower bolt. Done....you have new suspension on your v37!
    • And now to the front.  No pics of the 3 nuts holding the front struts on, they are easy to spot. Undo 2 and leave the closest one on loosely. Underneath we have to deal with the wiring again, but this time its worse because the plug is behind the guard liner. You'll have to decide how much of the guard liner to remove, I undid the lower liner's top, inside and lower clips, but didn't pull it full off the guard. Same issue undoing the plug as at the rear, you need to firmly push the release clip from below while equally firmly gripping the plug body and pulling it out of  the socket. I used my fancy electrical disconnect pliers to get in there There is also one clip for the wiring, unlike at the rear I could not get behind it so just had to lever it up and out.....not in great condition to re-use in future.
    • Onto the rear lower shock mount. It's worth starting with a decent degrease to remove 10+ years of road grime, and perhaps also spray a penetrating oil on the shock lower nut. Don't forget to include the shock wiring and plug in the clean.... Deal with the wiring first; you need to release 2 clips where the wiring goes into the bracket (use long nose pliers behind the bracket to compress the clip so you can reuse it), and the rubber mount slides out, then release the plug.  I found it very hard to unplug, from underneath you can compress the tab with a screwdriver or similar, and gently but firmly pull the plug out of the socket (regular pliers may help but don't put too much pressure on the plastic. The lower mount is straightforward, 17mm nut and you can pull the shock out. As I wasn't putting a standard shock back in, I gave the car side wiring socket a generous gob of dialectric grease to keep crap out in the future. Putting the new shock in is straightforward, feed it into at least 1 of the bolt holes at the top and reach around to put a nut on it to hold it up. Then put on the other 2 top nuts loosely and put the shock onto the lower mounting bolt (you may need to lift the hub a little if the new shock is shorter). Tighten the lower nut and 3 upper nuts and you are done. In my case the BC Racing shocks came assembled for the fronts, but the rears needed to re-use the factory strut tops. For that you need spring compressors to take the pressure off the top nut (they are compressed enough when the spring can move between the top and bottom spring seats. Then a 17mm ring spanner to undo the nut while using an 8mm open spanner to stop the shaft turning (or, if you are really lucky you might get it off with a rattle gun).
    • You will now be able to lift the parcel shelf trim enough to get to the shock cover bolts; if you need to full remove the parcel shelf trim for some reason you also remove the escutcheons around the rear seat release and you will have to unplug the high stop light wiring from the boot. Next up is removal of the bracket; 6 nuts and a bolt Good news, you've finally got to the strut top! Remove the dust cover and the 3 shock mount nuts (perhaps leave 1 on lightly for now....) Same on the other side, but easier now you've done it all before
×
×
  • Create New...