duh Posted March 6, 2007 Share Posted March 6, 2007 Continue to have prolems,engine builder came up to Scotland and had a go at getting rid of misfire,no joy.Builders of engine have built identical engine to mine and along with top boy from Mbe my ecu and a dyno, have had a go at re-mapping.I received the ecu back today but engine running as before.I have booked in at deepest Dartford for a rolling road session(thanks to all for the advice).What i want to know is why when running on a dyno it only shows the slightest hesitation with snap throttle,yet installed in the car i can kill the engine with same? Link to comment Share on other sites More sharing options...
Gambo Posted March 6, 2007 Share Posted March 6, 2007 ☹️ ☹️ this is not good news. I hope you get it sorted ASAP. the Steve's know there stuff. RED 2.0 HPC 230BHP Link to comment Share on other sites More sharing options...
Rob Walker Posted March 6, 2007 Share Posted March 6, 2007 All will be revealed when you get it on the RR, was exactly the same exhaust and primaries used on the dyno? Same fuel pressure regulation and same capacity of fuel pump? Link to comment Share on other sites More sharing options...
F355GTS Posted March 6, 2007 Share Posted March 6, 2007 I was going to suggest fuel pressure Mark Link to comment Share on other sites More sharing options...
dannylt Posted March 6, 2007 Share Posted March 6, 2007 If the fuel pressure were wrong, this would surely show up on the dyno steady state. Does sound like a bit of a nightmare, but another vote of confidence in the Steve's. Link to comment Share on other sites More sharing options...
Rob Walker Posted March 6, 2007 Share Posted March 6, 2007 The uprated (jpe/r500) fuel pump number is 6443228 C2770-1 the standard pump has the numbers 6443227. Link to comment Share on other sites More sharing options...
F355GTS Posted March 6, 2007 Share Posted March 6, 2007 Danny My thought were that a few of us (Steve Mell, Paul Deslandes, Phil Walters, Myself) have suffered with some regulators being unreliable at higher revs giving a different pressure dependant on temperature. Maybe when its being mapped and the Bonnet is off it's fine but in use it gets too hot. Mark Link to comment Share on other sites More sharing options...
Graham Perry Posted March 7, 2007 Share Posted March 7, 2007 All rolling roads have a fuel pressure gauge available so establishing that should be straightforward Does sound very frustrating though. Edited by - Graham Perry on 7 Mar 2007 08:55:12 Link to comment Share on other sites More sharing options...
duh Posted March 7, 2007 Author Share Posted March 7, 2007 Went out to end it all tonight,but because of the dam misfire cant get up enough speed to do myself any real harm.Anyone give me a tow? Link to comment Share on other sites More sharing options...
MartinP Posted March 7, 2007 Share Posted March 7, 2007 😬 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