Moderators Laird_Scooby Posted September 3, 2014 Moderators Report Share Posted September 3, 2014 Apologies to Snap for pure plagiarism there but how well do the C engines respond to the "invasive" tuning options? When i say "invasive", i mean things like porting and polishing, waisting the valves, matching the inlet manifolds to the inlet ports and similar for the exhausts? 1 Link to comment Share on other sites More sharing options...
Administrators hughezee Posted September 3, 2014 Administrators Report Share Posted September 3, 2014 Not really my subject m8y :| still there are a mixture of things you can do firstly more air, e.g induction kit or high flow filter K&N or re-profiling the cams the biggest plus would be the exhaust system and you’ve got one also you could limp mode the transmission at the flick of a switch not for faint hearted though, faster shifts and less slip :idea: 1 Link to comment Share on other sites More sharing options...
Moderators Laird_Scooby Posted September 3, 2014 Author Moderators Report Share Posted September 3, 2014 Limp mode the transmission - is that over and above what the S4 button does? That changes the shift points and makes it shift harder and as far as i can work out advances the timing slightly with a bit more enrichment so i daresay a K&N direct replacement filter would give a good compromise between economy and all out power with that combination. What i was hoping to achieve is a smoother, more balanced, more responsive and more powerful engine. Being greedy i don't want to sacrifice the economy, smoothness or driveability. In simple terms i want to knock the rough edges off to enhance the performance and increase the efficiency rather than going for a "balls out" street racer. I know de-catting it is worth about 24bhp and the water injection i'm using gives me 15% more economy and from very basic tests, about the same power increase i reckon. Even if it's only a 10% power hike it's still 19bhp so i'm currently looking about 212bhp at a rough guess. I reckon the hardest part about porting/polishing the heads will be finding (and affording!) the head gasket set! 1 Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now