Jump to content
SAU Community

Recommended Posts

Originally posted by meggala

160-180 4wkw

with just a powerfc up boost and some tuning 200-210 4wkw

:)

how come i am only making 190 4wkw with following mods then... :starwars:

kakimoto cat back with hks dumps and front pipe

hks wastegate actuator

blitz air filters

cold air ducting

blitz bovs

fmic

apexi power fc

boost at 1.2 bar

tuned by con at C & V (aren't they supposed to be one of the best tuners around? so i guess shitty tuning isn't the answer... :) )

is my car really that shit ??? :(

I have read this thread with great interest....

Nissaner,

190 4wkw at 1.2 bar seems a bit on the low side, BUT

Some Tuning shops Dynos show higher than true power figures to impress their customers. Maybe taking Ur car elsewhere would give u a Higher reading:D

C+ V 's dyno is probably accurate.

do you have an electronic boost controller?

have you had Ur injectors flowed?

cam timing gears settings ?

These are the only things i can think of

hope it gets the ball rolling.......

Akira:)

Originally posted by akira

I do you have an electronic boost controller?

have you had Ur injectors flowed?

cam timing gears settings ?

i have boost controller option with the apexi power fc...

i haven't had my injectors flowed yet... might look into that at next service

i have stock cams

thanks for the suggestion :P

Hi nissaner, when you say "fmic", what brand? Have you tried the car with the standard GTR one? They flow OK to 300 rwkw, I have seen a lot of aftermarket ones that don't flow as well as a standard one.

Do you have a copy of your dyno run? Does it have the air fuel ratios shown on the graph? If not, get them to print it out (overlaying the horsepower graph) next time you are there. Post it and I'll have quick look for any obvious problems.

What fuel do you run and what was used when it was tuned?

Have you got a Commander for the PFC? What sort of detonation numbers do you get? Should be around 40 to 60 (not enough to set off the warning) which is a good sign that the tuning is close to the limit. If zero, it's tuned too conservatively.

If you want to check if your engine is OK, a leak down test will tell you. Any good performance shop should have a Snap On leak down tester.

Hope that helps.

i don't know what brand my intercooler is , as it just came with the car when i imported it from japan... so i don't have the standard one either... :P

i will try to scan the print out, i think it had four graphs (two in dark blue and two in lighter blue... lighter blue is what my car was running b4 the tuning, and darker is after the tuning)

i do have pfc commander , how do i check the detonation ? will check it tomorrow morning... :D

i used bp ulimate for that tuning session... i usually put mobil synergy8000 coz its just 10seconds drive from my house...

thanks for ur suggestions

Hi nissaner, on the Commander

select "Monitor"

then next button

then 8 channel

then next button

then check and make sure that "knock" has a number next to it. If it doesn't select it with the up and down and left and right buttons.

Then drive the car around and watch the "knock" readings, should be 40 to 6o for a 'tuned' GTR.

If you don't already have one, you should download the Commander Instruction Manual from the US Apexi site, it's in English. The one they have is not a Skyline one, but most of the stuff is the same.

You should really use the same fuel for tuning and normal driving if possible. My choices are BP Ultimate, then Optimax and then Mobil.

Hope that helps

thank u very much for ur kind help... i will check it tomorrow.. (i wanna go out and play with the commander right now, but don't wanna wake my neighbours up at 2am ...:P they r already copping a shit lotta noise from my cars since when i bought my 1st car 33 gtst in 2000)

hey nissaner you ever put your car down the qtr mile? if so what time you get? coz after reading your mods, i started to question my car as well.... all those mods i slapped on my car but i still pull a qtr mile time similar to a stock r32 gtr (a 12.8 - 9 in some mags).

i spent ~ $2000 to go .1 - .2 seconds faster?!?!? well thats what i base it on anyway...

mines a bit less mods than yours... only stuff i did was

power fc

3" trust jasma cat back (std dump/fron pipes still)

ebc set to 1bar

k&n pods

5 puck clutch, stronger press plate

z32 afms

EDIT: cam gears set to top end power (less torque)

210rwkw... on 2 other dynos the power reading was only about 2 - 3rwkw out so its pretty consistant.

i guess we've been spoilt by all the other gtr's doing faster times so naturally we think that we should also get around the same time with the same mods... :P

Yep I don't think 160-180 @ all 4 is stock. My GTR made 160kw@ all 4 with just a cat back exhaust. I don't see how 180 @ all 4's is even close!...... it depends on the dyno as well.

An HPI GTR made around 210 with cam gears, cat back, filters and 1.4 bar of boost so I don't know how some ppl get their figures....

Also dunno about flat 12's on stock turbos. To me it sounds like bullshit.... I am not saying its not possible but I'd like to see some timesheets to prove this. On lightly modified GTR's with stock turbos I've yet to see better than a mid to high 12's. On a very light tuned GTR I was only doing 13's

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

    • Update 3: Hi all It's been a while. Quite a lot of things happened in the meantime, among other things the car is (almost) back together and ready to be started again. Things that I fixed or changed: Full turbo removal, fitting back the OEM turbo oil hardlines. Had to do quite a bit of research and parts shopping to get every last piece that I need and make it work with the GT2860 turbos, but it does work and is not hard to do. Proves that the previous owner(s) just did not want to. While I was there I set the preload for the wastegates to 0,9bar to hopefully make it easier for the tuner to hit the 370hp I need for the legal inspections that will follow later on. Boost can always go up if necessary. Fitted a AN10 line from the catch can to the intake hose to make the catchcan and hopefully the cam covers a slight vacuum to have less restrictive oil returns from the head and not have mud build up as harshly in the lines and catch can. Removed the entire front interior just shy of the dashboard itself to clean up some of the absolutely horrendous wiring, (hopefully) fix the bumpy tacho and put in LED bulbs while I was there. Also put in bulbs where there was none before, like the airbag one. I also used that chance to remove the LED rpm gauge on the steering column, which was also wired in absolute horror show fashion. Moved the 4in1 Prosport gauge from sitting in front of the OEM oil pressure gauge to the center console vents, I used a 3D printed vent piece to hold that gauge there. The HKB steering wheel boss was likely on incorrectly as I sometimes noticed the indicator reset being uneven for left vs. right. In the meantime also installed an airbag delete resistor, as one should. Installed Cube Speed premium short shifter. Feels pretty nice, hope it'll work great too when I actually get to drive. Also put on a fancy Dragon Ball shift knob, cause why not. My buddy was kind enough to weld the rust hole in the back, it was basically rusted through in the lowermost corner of the passenger side trunk area where the wheel arch, trunk panel and rear quarter all meet. Obviously there is still a lot of crustiness in various areas but as long as it's not rusted out I'll just treat and isolate the corrosion and pretend it's not there. Also had to put down a new ground wire for the rear subframe as the original one was BARELY there. Probably a bit controversial depending on who you ask about this... but I ended up just covering the crack in the side of the engine block, the one above the oil feed, with JB Weld. I used a generous amount and roughed up the whole area with a Dremel before, so I hope this will hold the coolant where it should be for the foreseeable future. Did a cam cover gasket job as the half moons were a bit leaky, and there too one could see the people who worked on this car before me were absolute tools. The same half moons were probably used like 3 times without even cleaning the old RTV off. Dremeled out the inside of the flange where the turbine housing mates onto the exhaust manifolds so the diameter matches, as the OEM exhaust manifolds are even narrower than the turbine housings as we all know. Even if this doesn't do much, I had them out anyways, so can't harm. Ideally one would port-match both the turbo and the manifold to the gasket size but I really didn't feel up to disassembling the turbine housings. Wrapped turbo outlet dumps in heat wrap band. Will do the frontpipe again as well as now the oil leak which promted me to tear apart half the engine in the first place is hopefully fixed. Fitted an ATI super damper to get rid of the worn old harmonic balancer. Surely one of the easiest and most worth to do mods. But torquing that ARP bolt to spec was a bitch without being able to lock the flywheel. Did some minor adjustments in the ECU tables to change some things I didn't like, like the launch control that was ALWAYS active. Treated rusty spots and surface corrosion on places I could get to and on many spots under the car, not pretty or ideal but good enough for now. Removed the N1 rear spats and the carbon surrounding for the tailpipe to put them back on with new adhesive as the old one was lifting in many spots, not pretty. Took out the passenger rear lamp housing... what do you know. Amateur work screwed me again here as they were glued in hard and removing it took a lot of force, so I broke one of the housing bolts off. And when removing the adhesive from the chassis the paint came right off too. Thankfully all the damaged area won't be visible later, but whoever did the very limited bodywork on this car needs to have their limbs chopped off piece by piece.   Quite a list if I do say so myself, but a lot of time was spent just discovering new shit that is wrong with the car and finding a solution or parts to fix it. My last problem that I now have the headache of dealing with is that the exhaust studs on the turbo outlets are M10x1.25 threaded, but the previous owner already put on regular M10 nuts so the threads are... weird. I only found this out the hard way. So now I will just try if I can in any way fit the front pipe regardless, if not I'll have to redo the studs with the turbos installed. Lesson learned for the future: Redo ALL studs you put your hands on, especially if they are old and the previous owners were inept maniacs. Thanks for reading if you did, will update when the engine runs again. Hope nothing breaks or leaks and I can do a test drive.
    • No those pads are DBA too  but they have colors too. I look at the and imo the green "street" are the best.
    • I’m not sure what happened I told them about sonic tunes free OTS tune and the next the I know .. I was booted..   To funny 
    • Yea - I mean I've seen my fuel pump which is decades old and uh, while I'm not saying this with real knowledge... but I sure get the ick at using anything in the fuel system that produced the state of that pump. Many years ago I went through multiple pumps (and strainers) before I dropped the tank to clean it out with extreme violence. I'm talking the car would do maybe 50km before coming to a halt, which resulted in me cleaning out the filter with some brake cleaner and going on my way. None of my stuff ever looked like what came out of your fuel tank. I don't think I'd be happy with it unless every single component was replaced (or at least checked/cleaned/confirmed to be clean here).
    • I'm not going to recommend an EBC pad. I don't like them. Just about anything else would suit me better. I've been using Intima pads for a while now.
×
×
  • Create New...