hi,
my wira just change engine gsr 4g93 turbo.
the engine is vibrating & shaking badly at idle. idling 900rpm steady. above idling no vibrate.
mounting looks good.
also the spark plug should i use heat range 6 or 7 ?
as i know , throttle body dirty might cause rpm to dance up and down
but my rpm is steady, just the whole engine vibrating badly
on the road, the power is normal for a stock gsr
Just had my second dyno session yesterday, drilled a hole in the exhaust extractor manifold after the turbine with wideband O2 screwed it up right to get better AF reading. My spec:
4G93T, standard 0.7 boost, standard mini side mount intercooler...