Ben C34

Could you make the effort to actually describe the problem better. While you are at it please tell us about your car. Otherwise you might be disappointed with the nearly random guesses that you get. Here is my guess based on the current info. You are lifting your foot off the throttle and not noticing it or your car is running more boost on a stock ecu.

Just curuous why specifically rb26 head? Have the head stud threads been tapped to suit?

Of course they would. It's the law.

An auto name skyline is ultimate fail. Factor that into your decision.

Every other car takes it from close to or on the turbo. The gtr is different because racecar.

No. Figure that out yourself. Is this something you are considering or just a pipe dream?

Good point . The blue is the return for the bled air back to the engine for emissions requirements. Can't vent anything to the atmosphere!

Of course it's possible. Do it.

The more boost you run the cooler you are.

You should take the boost signal to the gauge from the inlet manifold. The line to the waste gates via the solenoid should be done as GTSBoy has said. As per the diagram the blue line is the pressure source that should go to the new solenoid then waste gates.

And they take all your money..... It's definitely not cheap!

Too much. I bought one complete with cut loom trans head manifolds starter etc, for 250 or 300 (can't remember) and he delivered it! Was comp tested and from a relatively low k car. Sold head for 50 then binned the rest.

As Scott said something seems wrong with the bovs. Also light throttle is meat to be 14.7 to 1, so nothing to worry about there. The stock maps run rich when on boost. Are there any error codes on the ecu? How hard did you load it up in your driveway to check fuel pressure? Would have to be a pretty serious driveway to be able to rule out fuel pressure as a problem. It seems like replacing the fuel pump might help as it's something you haven't done. I'm not sure how well injector cleaner works, but by putting it in the fuel rail is kinda a waste of time, as once the pump primes it would have pumped it all back to the tank. So actually cleaning the injectors would be the better option. Looks like you have done a lot and must be frustrating. I would look at your valve clearances also as they will cause serious issues if out of spec. All the best

No Deal. He said auto at end of first post.....

My c34 has no lights in the shifter. The dash shows what gear you are in.

No worries man.

Nistune won't give you a base tune to suit your mods. It will be exactly the same as stock once the Nistune board is installed. Then the tuner can change the map to suit. Nistune don't tune cars. They make and sell the hardware and software so cars can be tuned.

There's a thread on how to turbo your na in the name section.

Adelaide is a small place man.

I win. Took two tries to convince you though. Glad you sorted it.

Boost leak. As I already suggested also.

If you like you could get your odometer set to 200,000ks now so you can see your car won't explode because of a number on the dash

Exactly. K's don't mean shit

I have had a small hole in a core welded by a professional 10 yrs ago and was no worries. But depending on where it is whether it is worth repairing.

I can't help but I can tell you to not go to Nissan. They want to sell and change oil on new cars. Not mess around with old cars. I would check all the plugs are clean and plugged in correctly.