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Falcon coils use around 3.5ms charge and 0.6 discharge time.(Not sure the PFC will do that) If your using EF Falcon coil packs then its waste spark and the discharge finds it easyest path and at higher boost thats the plug thats not under compression so it will miss,If your using 6 Falcon coils the Nissan module wont be upto it. Many ppl run upto 30psi on stock coils so there must be a problem with the coils-ignitor-wiring if they miss fire under load.

Many of the China manifolds are a total stuff up with number 1 and 6 cylinder running head on to each other and the waste gate also at this meeting point with the 2 runners and the gate only having a 35-40mm exit point to the turbo. Cylinder 1 and 6 run under 1/2 the temp 2 to 4 run and also stuffing up the AFRs leading to a poor tune and even engine damage and at best great loss of potential power. Look for the later design that has 6 even pipes entering the base of the Turbo and dual wastegate outlets.

Yes you can use an RB20 intake cam but you lose the VVT.

The fluid leaking from the rear of the cylinder is a guide that theres problems.

Poor brake pedal and fluid leaking out between the master cylinder and the booster and the rubber in the cap being rotten is a good sign that the cylinder is in trouble.

Stock GTR injectors will handle 250kw.

No cam gears for VVT intake cam on RB25s only the exhaust but the factory VVT intake gear is ajustable anyway from behind the gear.

A top head shop in Perth flow tested an East coast big name head for an RB26 a few weeks ago and found it quite poor. The shop didnt use a flow bench but said I know the tricks and dont need one.I'd want flow figures on a big dolla head.

Not sure about the RB china Greddy copy but early this week i did an SR Greddy copy on a basic S13 that fell from 280rwhp to 246rwhp and could not recover the power by retuning. I read somewere that the real thing does much the same.

Jap companys have 87.5 and 88mm pistons.

25 is easyer but the 26 is still easy Ring us 2moro and i can quote you.94588155.

One type but needs the right gear to tune.

Nengun and Greenline are both very safe to deal with but Greenline are often a bit faster.

Replace your belts and if its due replace cam belt also.

Ill find the link but they claim very good gains.

Links well supported in NZ so its a smart option.

If its not on private property of aggreed to its Vandalism.

Who started the variable VVT on R34s? Not many ECUs can do variable VVT but Rank rotary have just setup an XR6 Turbo with a Wolf and setup the variable VVT using a variable output the Wolf has that is variable every 125rpm.

Bens number is 0421871627 and has just got a new shipment but many shops are buying up so be quick.

Theres a few plug in ECUs out there now with a few offering MAP sensing so look around. HPIs R32 GTS story will give you a few pointers for RB20 options.

Sorry i forgot to get Bens phone number,Ill try again tomorrow.

Even the D jetro gets MAP sensor pulsing with thw 6 throttle bodys so if your not going wild then the standard PFC is fine. $900ish to buy $400ish to tune.

www.greenline.jp Get an idea from there.

JUN TOMEI HKS,All as good as it gets so look for the best deal.

It does have to be machined. Early cranks are about 8-10mm later are about 20+.At home so cant tell you exact but close enough for you to know.