Jerky Boost On Gtr

[gexenon]

I've noticed that my GTR's acceleration in second is no longer smooth. It starts boosting and then suddenly drops for a split second and then again and again all the way to the redline.Does any one know what could be causing this. I did take the boost restrictor out but it was fine for ages before this happeed.

[DVS JEZ]

I've noticed that my GTR's acceleration in second is no longer smooth. It starts boosting and then suddenly drops for a split second and then again and again all the way to the redline.Does any one know what could be causing this. I did take the boost restrictor out but it was fine for ages before this happeed.

do you have std coils?

when did you replace the plugs last?

you should try running a spark plug gap of about .8mm should help if it is dud coils

[ish]

yep sounds like the common old Coil packs cracks. the spark arcs out instead of firing the spark plug ... I would say it it has happend due to the extra boost and heat your generating from removing the restrictor ... Same thing happend to me

[gexenon]

I replaced the plugs about 15,000km ago and i'm runnng standard coils

Does regaping plugs solve this problem or is it just banaid solution.

Also, roughly how much are new coils?

do you have std coils?

when did you replace the plugs last?

you should try running a spark plug gap of about .8mm should help if it is dud coils

[ali-turko]

regapping them to .7 may solve the problem iv seen it many time

[gexenon]

regapping them to .7 may solve the problem iv seen it many time

I did wash the engine bay before this started happening, does that have anything to do with it? Am i better off getting new coils with the plugs?

[azamataz]

You can get new splitfire coils for just over $500 a set delivered

And try changing your plugs aswell as i think copper plugs are only good for 10,000km. I change mine every 5000km when i service the car as they are only an extra $20 or so.