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i have just finished doning the major service on my car and now it is very laggy and has no kick. Here are the mods after it was running good.

rb25 s1 turbo

cam gears - set at 0 degrees

cam belt

walbro 255l pump

computer has been reset but still problems. I know it should be retuned but i thought it would run better than this. Power flattens off at around 4500rpm. It feels like a cam tooth out but i have double checked.

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i have checked it and everything lines up perfect. the belt is deff not the problem. Is there anything else that would cause a problem with ignition timing? another sensor. the cas is in right as i checked that the locating dowel is still there.

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yes clipped it onto the looped wire on the back of the coil cover. do you need to eart out a wire or anything like that as i know you have to do things like that on other cars, have not done much work on skylines. it was originally an automatic and still has the same computer, ran fine before though. changed the clutch as well but cant see how that would effect it.

Edited by sneekypete
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