AngryRB

Small update, i changed the plugs back to BKR7E and she has all the power back with no misfire's... The issue still remains, that is i start it and its on 5 cylinders until i drive up the road and load it up in second gear , then it seems to clear up and runs perfect.. except for it usual jerkiness on very light throttles which i assume is the camshafts or maybe tailshaft slop.. So what could it be that clears up with some load applied, could injectors be need8ng cleaned after 10k and using ethanol? Diesnt ethanol clean shit??? Tuners explains it as it must be dirty injectors but after he put shit plugs in not sure if hes right... Coolant is not going down and fuel economy is good, power is good, its just cold start on 5cylinders till loaded up.

Grab a stock running RB30 like i did, then recon the head and see how long she lasts. When she blows get 3.4stroker kit ?

Whats the history of it? Id be looking under the covers to check if the cams are aftermarket. A set of fat cams could drop it 30psi, plus retarding the stock cams would lower it and if someone put some silly low comp pistons in. Do a leak down test, check the plugs, see how much blow by its making etc..

That BOV looks ancient, I'd get rid of it as your running an atm, it's probably bleeding air off under boost and your engines getting flooded. Also plugs make a big difference, the BKR7E's are the go as was said already.

Strange the noise is only at 5k, when mine needed replaced it was rattling loud at cold start idle speed.. I got mine thru kudos motorsport around the $850 if I remember correctly.

Yeah nothing more frustrating than knowing you were there first but being dicked around.. hope they get it together soon for ya

Is this plug helping? Last set was a BKR7E that had a split in the electrode

Z32 afm and power fc

Yep a z32, today again cyl 5 so i switched it with cyl 6 coil and just like that all 6 firing... Will start looking into the multimeter idea and the cas test..

Yep that workshop gone to shit for sure.. not happy.. This morning i tried again, and cyl 3 and 5 dead, so i put 2 old coilpacks in and she ran sweet except heavy breakdown under load later when was hot. So whats the chances of 3 brand new coilpacks failing on a cold start? Loom is brand new from kudos, plugs new also.. What about the cas or ecu, can they play these kind of games? I dont really have a clue about multimeter testing.

Currently have annoying misfire problems. The engine is RB30neo, after taking car to reputable tuner he replaced cas with secondhand cas , a coilpack, std fuel reg, fuel filter and said the fuel injectors are dirty and fuel filter was blocked. So he road tuned car and said its better now. Original issue was it running like a wrx for first 10mins, after that it was a rocket. So now after it being at the workshop, it still starts like a wrx and now it has a strong misfire at 4k, right at the point it used to start breaking traction. So i started it up and pulled one coil out at a time, cyl 3 and 5 not firing. These coilpacks are brand new, have replaced them twice now. So my question is what can cause cyl 3 and 5 to randomly not fire? Or are these splitfire coils fake copies?

I'll add my comp for comparison, cold motor, RB30neo with 260poncams, fresh head, old bottem end stocker 165,170,175,175,170,170

I think the real boat is the r35GTR, looks like it would handle some big waves, shes a solid looking vessel.

Time to start replacing every sensor and part of the car, im currently half way there and still have a similar issue. Current theory is the tank could be full of crap leading to a dirty fuel system.

Neo head has the black CAS

Got the shits with this 5cylinder start ups so now shes at the tuners. But now apparently it wont start at all, bloody cars.. the day before i checked the injectors, coils all fired, plugs mint, did a comp test, motor cold. Cyl 1-6: 165,170,175,175,168,170 So happy with that considering the tomei cams drop about 25psi off. So hoping its a cheap fix but im thinking ecu maybe giving up, if so im gonna get a haltech elite 2000 or 2500 ? Had a few good squirts on the way, ripping 2nd never gets old..

You need a mod plate plus a rwc and then should be sweet. Not sure where your located but i used Craig from Performance auto Inspections.

Abbott engines on the Gold Coast, they reconditioned my neo head for the RB30..

Looks sweet! Did you use stock r33 mounts or try modding them?

Yeah were quite loud noises at idle speed my tuner says the vct gears are becoming a more common issue. Id be shining a bright light around the backing plate, see if theres rubbing and also slacken the belt a touch if its a bit tight.

Ive had some recent experience with similar, the vct was rattling metal on metal noise on cold start. Had a metal scraping noise too, this was simply the backing plate rubbing on the cam gear, not much holding it back, probably happens from someone leaning over the motor with a fat gut lol. And finally another rub noise was the timing belt too tight, GL with it..

She's alive again, feels much better low down and spools up early... Love this idle..

Stop makin babies n get that skyboat finished ?

Could be but there new injectors, before the VCT replacement it would randomly not fire cyl 3 on cold start but after 5mins fire all 6. Once batteries in ill check the coil is sparking and maybe take the injector out.

Battery finally arrived, decided to splash out and get something decent. Shes a D34 yellow top, 750cca should be enough grunt. The battery tray i think will need widened but will be fine. Also got some more Mobil and zddp additive, even 0-40w and she doesnt use any oil ?