Printable Version | Subscribe | Add to Favourites
New Topic New Poll New Reply
Author: Subject: ST170 flat spot
lewis

posted on 25/5/22 at 11:00 AM Reply With Quote
ST170 flat spot

Hello all Iím 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, itís always been there but seems to be getting worse recently

ST170 engine (standard)
ME221 with ST170 loom
running with VVT
Jenvey throttle bodyís
Correct inlet manifold
Rolling road setup (2 years ago) 176bhp





I am a driving god!..........sort of

View User's Profile View All Posts By User U2U Member
cliftyhanger

posted on 25/5/22 at 11:12 AM Reply With Quote
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.

View User's Profile View All Posts By User U2U Member

New Topic New Poll New Reply


go to top






Website design and SEO by Studio Montage

All content © 2001-16 LocostBuilders. Reproduction prohibited
Opinions expressed in public posts are those of the author and do not necessarily represent
the views of other users or any member of the LocostBuilders team.
Running XMB 1.8 Partagium [© 2002 XMB Group] on Apache under CentOS Linux
Founded, built and operated by ChrisW.