Jump to content
SAU Community

Recommended Posts

Well I have had the PFC in for a couple of weeks now and am about to decide on where to get it tuned (I'm in WA). I have narrowed down the tuner to either Top Racing (it's close to where I live and it's a small tuning place which I guess might mean I will get a more personalised service from?) or X-Speed (which is a big tuning place that might have better facilities, but might be be a more get you in and get you out experience?).

What do people think I should go for?

Also I am only aiming for around 200rwkw at the moment (I have turbo back exhaust, EBC which will be running 11psi etc...) - obvioulsy my injectors are getting to 100% duty cycle and I should not need much more at around that power level, but would it be wise to upgrade my fuel pump or get an adjustable fuel regulator before the tune for safety? Would the adjustable fuel regulator allow me to squeeze a tiny bit more performance out of this setup? I don't care about the cost of the items but would it cost much to get either of these installed by a mechanic, ie is it a major job?

Any help is GREATLY appreciated :D

Link to comment
https://www.sau.com.au/forums/topic/160213-tuning-an-pfc-for-my-r34-gtt/
Share on other sites

I just road tuned a mates r33 gtst after he just got his new PFC last weekend and it goes really well.. i am estimating around 195rwkw or so on 13psi which spikes to 14psi when its really cold.

the mods are

Front mount

Full turbo back exhaust

K&N panel filter

Apexi POWER FC

and some duel stage boost controller

stock injectors

stock fuel pump

I dont think it would have less then 195rwkw it goes great - should put it on the dyno soon to check i suppose

ohhh forgot to mention it gets up to 90% injector duty with stock injectors and stock pump.

Edited by Guilt-Toy
I just road tuned a mates r33 gtst after he just got his new PFC last weekend and it goes really well.. i am estimating around 195rwkw or so on 13psi which spikes to 14psi when its really cold.

the mods are

Front mount

Full turbo back exhaust

K&N panel filter

Apexi POWER FC

and some duel stage boost controller

stock injectors

stock fuel pump

I dont think it would have less then 195rwkw it goes great - should put it on the dyno soon to check i suppose

ohhh forgot to mention it gets up to 90% injector duty with stock injectors and stock pump.

So I guess I shouldn't need to worry about getting an adjustable fuel reg... It's just that I have already been seeing the injectors at 100% duty cycle on the PFC hand controller. Maybe this is just because it has not been properly tuned yet to make the most of the fuel being squited into the engine?

exactly. when i was doing this one - the stock maps was taking the tune down to 10 af ratios which is very very rich map standard so they will take fuel out of it and it will bring the mixture right which will also make more power.

So yeah the stock pfc map is set really trich - you need to get it cleaned up.

how big are the 34 gtt injectors? if they are the same as the r33 then 200rkw should be fine.

So I guess I shouldn't need to worry about getting an adjustable fuel reg... It's just that I have already been seeing the injectors at 100% duty cycle on the PFC hand controller. Maybe this is just because it has not been properly tuned yet to make the most of the fuel being squited into the engine?
Edited by Guilt-Toy
Cool...

So those with knowledge of WA tuners - should I go with Top Racing in Carlisle, or X-Speed??? :glare:

Between the 2 i'd go with X-Speed, get Ant there to tune it, speak to anyone in WA who's into performance tuning n Ant will be mentioned sumwhere. How much did either place quote u for the tune?

Expect round 195rwkw, dont be afraid to lean it out to extract more power & economy but watch the knocks. Noticed ur in Vic Pk, wonder if ive seen u round...

Between the 2 i'd go with X-Speed, get Ant there to tune it, speak to anyone in WA who's into performance tuning n Ant will be mentioned sumwhere. How much did either place quote u for the tune?

Expect round 195rwkw, dont be afraid to lean it out to extract more power & economy but watch the knocks. Noticed ur in Vic Pk, wonder if ive seen u round...

Yep you probably have seen me around Vic Park - it's a silver 4 door R34 :)

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

    • I had absolutely no symptoms whatsoever that anything was wrong.... I'm very happy it was all spotto'd and re-bled and re-torqued and aligned though. Will be picking it up tomorrow and undoubtedly be like "Oh, that clunk is gone" "Oh, the car really wants to drive straight" "Oh, that pedal feels better" "Oh, it feels like I've gained 25hp" "Oh, the handbrake works now" It should have been a sign that the new Project Mu shoes had 3mm of pad depth on them out of the box, and the OEM ones from 25 years ago that we took out also had 3mm of pad depth, implying the issue was not, and never was the shoes, but we put that down to it not being adjusted correctly. It wasn't, but it wasn't even adjustable at all given one side was boned and the T Junction of the cables was on a 45 degree angle, the non-working side being the one on the massive angle. Obviously when I had adjusted it and reset it and re-tensioned it I had either got it stuck or something along those lines. Oh well. Live and learn and absolutely could have been catastrophically worse so I'm rationalizing it as a win, kinda. I also got the chance to measure the distance between rear rim and the suspension arm/shocks and found a 30mm rubber block only just doesn't fit there. Which is great to know before ordering wheels, when I assumed 30mm was easy. The man with the Porsche adapters has rims that use 23.9mm of that space, so it's safe to assume I have between 23.9 and 29.9mm of space there to play with on the inside. The wheels looked pretty stupidly pokey with the 20mm spacers on the rear, only for me to find that the studs come out another 12mm and the wheel doesn't actually sit flush with the hub because you're supposed to cut your original studs. The wheels do have cutouts that kinda accomodate it, but not fully. So my 20mm spacer was anywhere between 25mm and 35mm. ~25mm and send it will determine on where the wheels sit with the spacers on. When I put the pads in for the track day I will mess around with spacers (with wheels that do not clear studs properly when mounted to spacers) and do more math, for the last time, for the 7th time.
    • Lucky pick up Best to find these things before something horrible happened to the yoke flange thingies I would hate to think what would happen if it dropped the tailshaft  Hopefully the holes are not flogged out in the yokes and it was just the bolts that got munted  As for the hand brake.....ouch, look like the disc got rather hot, and I assume smokey, I recall when I had a front caliper seize on the Commodore, there was lots of smoke and the disc was glowing cherry red when I was able to eventually stop and have a look, and stopping a big heavy car, going down a big hill with some rather high RPM down shifts and some hand brake action is something that makes you think hard about life
    • One of the things that never seemed right was the handbrake. Put in some nice new Project Mu shoes. We figured the rears were out, so why not. We're right there. My handbrake never worked well anyway. Well, this is them, 15km later. 67fdcf94-9763-4522-97a4-8f04b2ad0826.mp4 Keen eyes would note the difference in this picture too:   And this picture: Also, this was my Tailshaft bolts: 4ad3c7dd-51d0-4577-8e72-ba8bc82f6e87.mp4 It turns out my suspicions that one side of the handbrake cable was stretched all along were pretty accurate, as was my intuition that I didn't want to drop the tailshaft to swap them on jack stands and wasn't entirely sure about bolt torque. I have since bought the handbrake cables which have gone in. I'm very glad that I went to my mechanic friend who owns an alignment machine to get an alignment before the track day, because his eyes spotted these various levels of "WHAT THE f**k IS GOING ON HERE?". Turns out the alignment wasn't that bad, considering we changed the adjustable castor arms out for un-adjustable castor arms, and messed with the heights. Car drove pretty good with one side of the handbrake stuck on, unbleedable rear brakes, alignment screwy, and the tailshaft about to go flying and generally being a death trap waiting to happen! (I did have covid) (I maintain I adjusted the handbrake correctly, but movement caused shennanigans and/or I dislodged the spring on the problem side somewhat, or god knows what). G R E G G E D
    • Very interesting, im not sure how all those complications fit in to running a haltech instead of a stock ecu but I'm starting to think I'm a bit out of my league.
    • I just put 2 and 2 together. This is a Neo converted R32. The Neo ECU (in concert with the R34's AC controller) runs the AC quite differently to how the R32 ECU and AC controller do it. If you just drop it all in, it won't work. There is some tricky wiring required, including changing to the pressure switch that the Neo controllers want to see. I don't know what it is, because mine was done by a guru. It was a year or so after I did that transplant before he worked out what needed to be done.
×
×
  • Create New...