DavePalmer Posted March 28, 2005 Share Posted March 28, 2005 .....from having a new exhaust fitted. 70 mile motorway trip each way Outbound - temp approx 80, oil pressure 4 bar 3 hours later - new 4-2-1 fitted in place of standard short 4-1 return journey - temp approx 88 oil pressure just under 4 bar As the fuel, ambient temperature and drive there and back were similar, and subsequent drives have shown the same consistent figures - the change is solely down to the exhaust - so what's happened - am I running lean where as before I was running too rich (plugs were sooty) ? Car is a 1.8 Kseries with a ported head running (std valves) supersport cams but on a 1.4 mems as it was originally a 1.4. It seems to be running better than ever, and subsequent usage has shown temperature doesn't get much above 92 unless sitting in traffic - but should I be worried and what options have I got for corrective action - adjust the timing ? Link to comment Share on other sites More sharing options...
Mick Day Posted March 28, 2005 Share Posted March 28, 2005 Just as you say, more air is going through the head as the exhaust is more efficient. Time to change to an Emerald me thinks. 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