A question, I have a problem with my car, what happens is that when I walk below 6000 rpm the car pulls well, it only goes beyond 6000 rpm, which is when the vtec is activated and starts to throw explosions and no longer move on ... It moved over time and improved a bit a few days, the intake and sensors pull well. I have 50 lbs on the gas regulator and 10 lbs to the turbo with all stock, the car was pulling perfectly days ago
Someone who had the same thing happen and how they solved it..?

 

What fuel are you running?

What brand/model spark plugs are you running and what are your spark plug gaps set to?

Have you tried a new set of spark plugs?

 

Gasoline, brand of the spark plugs is ngk iridium, and I will hardly buy some ngk bkr7

 

What is your spark plug gap? If you run too large of a gap it can blow the spark out. I am running 0.020 inch (0.50 mm).

 

Is 0.030

 

Tighten that gap up and try again.

 

What engine management/ ECU are you using? do you have any check engine lights?

Try to reset the ECU just unplug the battery for a few mins and plug it back in.

 

You could try tightening up that gap, although I don’t feel to confident about it. It would at least rule it out. At 10lbs anyways I’d imagine that that should be sufficient. As I run my car at .025.

Im curious as to what EMS are you using? And do you have the ability to read data and data log? I’d do a run and get it acting up while your recording, and go back and see if any errors are coming up or any sensor is going Haywire while in vtec. Or even a timing/vtec engagement issue itself.

 

I have managed to fix my problem, it was the spark plugs, my engine had hot plugs which are "ngk iridium" and I put some "ngk bkr7" plugs cold and my problem was solved both are at 0.030Thank you very much for commenting and helping

 

RE-GAP the plugs to .020 and you will notice a difference.