lewis
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| posted on 25/5/22 at 11:00 AM |
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ST170 flat spot
Hello all I’m after some advice please, I have carried out a engine swap from zetec 1.8 to a standard ST170 engine specs below, I have a flat spot
around 3000rpm under load, pulls fine up to & fine after the flat spot making good power, it’s always been there but seems to be getting worse
recently
ST170 engine (standard)
ME221 with ST170 loom
running with VVT
Jenvey throttle body’s
Correct inlet manifold
Rolling road setup (2 years ago) 176bhp
I am a driving god!..........sort of
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cliftyhanger
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| posted on 25/5/22 at 11:12 AM |
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You need to have a look at fuelling, vvt and ignition tables, see if there are any changes happening at 3K
It seems a lot of tuners don't understand the VVT side of the ST170, even the basemap from ME had advance increasing with RPM, which was not a
great idea.
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