Jump to content
SAU Community

Recommended Posts

I spent a couple of hours on the dyno spead out over a couple of nights. I have been using the power FC software which has enabled me to tune sooo much more easily.

Mods.

87mm CP pistons

Tomei poncams 260 9.15

1mm oversize valves

HKS2530's with modified exhaust port to match chinese stainless manifolds

ARC twin entry intercooler

Blanked off BOV's (came with ARC cooler kit)

Mines AFM's

GTR+044 and surge tank

Nismo Fuel Pressure Reg

Apexi pod filters

Just Jap Alloy Radiator

Greddy cam gears

2x3" exhaust with 2x magic cats into a single 3.5

I also played with both cam timings and found 0 degrees to be optimal, I could get more power up top with 4+ degrees on the exhaust but at the expense of low down power.

comments welcome

post-2338-1160639114.jpg

Link to comment
https://www.sau.com.au/forums/topic/138408-tuneddynod-my-gtr/
Share on other sites

Comment: Pull that temp sensor out of the engine bay and do another run without corrections :P

Anyways, good power and a reasonable curve.

Spend a bit more time to eliminate that dip in the mid range and it'll be near on perfect!!

Was that around 20-22psi mark?

Haha, well spotted :D

Comment: Pull that temp sensor out of the engine bay and do another run without corrections :P

Anyways, good power and a reasonable curve.

Spend a bit more time to eliminate that dip in the mid range and it'll be near on perfect!!

Was that around 20-22psi mark?

Comment: Pull that temp sensor out of the engine bay and do another run without corrections :P

Anyways, good power and a reasonable curve.

Spend a bit more time to eliminate that dip in the mid range and it'll be near on perfect!!

Was that around 20-22psi mark?

yeah the temp was right up there, i had my pod shield out which definately didn't help much. the AFR was rich reflecting how hot the water temp was. I also have another graph with the IT at 39 degrees with 378kw. the dip was wheel spin

spot on 21.5psi

For the record I agree the temp shouldn't be that high, the sensor was sitting under the pods against the metal of the car so I'm guess was hotter than it should have been, I would have estimated the IT at the time to have been 54ish degrees from what the PFC was telling me. any who 278rwkw with 39degrees IT, I can post up if u would like.

Edited by BOOSTD
Nice result matt, looks like a nice safe tune too 11.2 AFRs

have to catch up with you to have a look, last time i saw her there wasnt much in the engine bay :P

Yep she's coming along, The AFR's were tuned earlier in the night for 11.4 but this was a pretty warm run. I'd done a few 24psi runs just previous but the plugs let me down.

Lots of power is nice. :P

Since you did it yourself would you mind posting up some raw data? I'm particularly interested in how much advance you are running across the rev range.

What is base timing set to?

What rpm are you seeing full boost? 1 bar?

Thanks.

Advance is 18degrees max a full load base is 20, i'll have to check where 1 bar is

I do have some pics somewhere, the manifolds are heat wrapped and also the front pipes which extends behind the front seats

I have no idea what 6 or 6f is, I didn't setup the computer....=) haven't learnt that much as yet, hard enough remembering to turn the ramp up off in time after a power run so I don't get lines all over my graph lol The just jap radiator cools very well, it did leak from the cap for a month or so but has sealed up now.

Edited by BOOSTD

Wheelspin? :rant:

Get it strapped better and do a run :(

That will sort the dip out, did you get any runs without spin?

Although the AFR's are rich so if it was fully loaded up it probably wouldnt be a large issue.

21.5psi :) smack on what it should be for the 360-380 marker

Just hang the sensor on the dyno rack, good enough :rant:

while im aware most would have seen this, those that havent need to see it!

The mines ultimate r34, what 2530's can really do.

It looks like they have this thing pulling hard from not much over 4grand, almost unbelievably quick to ~9grand redline, what a crazy powerband!!

does anyone know how much peak power the mines car makes?

Am i remembering correctly that this car is in Australia now?

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

    • Hi, is the HKS  Tower Bar still available ? negotiable ? 🤔
    • From there, it is really just test and assemble. Plug the adapter cables from the unit into the back of the screen, then the other side to the car harness. Don't forget all the other plugs too! Run the cables behind the unit and screw it back into place (4 screws) and you should now have 3 cables to run from the top screen to the android unit. I ran them along the DS of the other AV units in the gap between their backets and the console, and used some corrugated tubing on the sharp edges of the bracket so the wires were safe. Plug the centre console and lower screen in temporarily and turn the car to ACC, the AV should fire up as normal. Hold the back button for 3 sec and Android should appear on the top screen. You need to set the input to Aux for audio (more on that later). I put the unit under the AC duct in the centre console, with the wifi antenna on top of the AC duct near the shifter, the bluetooth antenna on the AC duct under the centre console The GPS unit on top of the DS to AC duct; they all seem to work OK there are are out of the way. Neat cable routing is a pain. For the drive recorder I mounted it near the rear view mirror and run the cable in the headlining, across the a pillar and then down the inside of the a pillar seal to the DS lower dash. From there it goes across and to one USB input for the unit. The second USB input is attached to the ECUtec OBD dongle and the 3rd goes to the USB bulkhead connected I added in the centre console. This is how the centre console looks "tidied" up Note I didn't install the provided speaker, didn't use the 2.5mm IPod in line or the piggyback loom for the Ipod or change any DIP switches; they seem to only be required if you need to use the Ipod input rather than the AUX input. That's it, install done, I'll follow up with a separate post on how the unit works, but in summary it retains all factory functions and inputs (so I still use my phone to the car for calls), reverse still works like factory etc.
    • Place the new daughterboard in the case and mount it using the 3 small black rivets provided, and reconnect the 3 factory ribbon cables to the new board Then, use the 3 piggyback cables from the daughterboard into the factory board on top (there are stand offs in the case to keep them apart. and remember to reconnect the antenna and rear cover fan wires. 1 screw to hold the motherboard in place. Before closing the case, make a hole in the sticker covering a hole in the case and run the cable for the android unit into the plug there. The video forgot this step, so did I, so will you probably. Then redo the 4 screws on back, 2 each top and bottom, 3 each side and put the 2 brackets back on.....all ready to go and not that tricky really.      
    • Onto the android unit. You need to remove the top screen because there is a daughterboard to put inside the case. Each side vent pops out from clips; start at the bottom and carefully remove upwards (use a trim remover tool to avoid breaking anything). Then the lower screen and controls come out, 4 screws, a couple of clips (including 3 flimsy ones at the top) and 3 plugs on the rear. Then the upper screen, 4 screws and a bunch of plugs and she is out. From there, remove the mounting brackets (2 screws each), 4 screws on the rear, 2 screws top and bottom and 3 screws holding in the small plates on each side. When you remove the back cover (tight fit), watch out for the power cable for the fan, I removed it so I could put the back aside. The mainboard is held in by 1 screw in the middle, 1 aerial at the top and 3 ribbon cables. If you've ever done any laptop stuff the ribbon cables are OK to work with, just pop up the retainer and they slide out. If you are not familiar just grab a 12 year old from an iphone factory, they will know how it works The case should now look like this:
    • Switching the console was tricky. First there were 6 screws to remove, and also the little adapter loom and its screws had to come out. Also don't forget to remove the 2 screws holding the central locking receiver. Then there are 4 clips on either side....these were very tight in this case and needed careful persuading with a long flat screw driver....some force required but not enough to break them...this was probably the fiddliest part of the whole job. In my case I needed both the wiring loom and the central locking receiver module to swap across to the new one. That was it for the console, so "assembly is the reverse of disassembly"
×
×
  • Create New...