Well had some more major problems...
The crankbolt was a stretch bolt it appears so it came slightly loose and ended up shearing the key way off the gear. This in turn messed up my exhaust valves with them all hitting my pistons.
Took the head off, sent it off to be rebuilt and polished the pistons. Put it all back together and started on 3 cyclinders...which then went down to 2 and died. Turns out the person who rebuilt the head seated two valve springs wrong and they instantly snapped two of the valves and of course more dents in the pistons......
Ended up risking it and bought a used AGU large port head off of ebay and the pistons...which came and I put straight back in and it fired up spot on.
Next was mapping, unfortunately the turbo (hybrid KO4 - 023) seems to be prown for surge and creep issues. Lots of people over on SCN are really struggling to map it using the N75 control and are resulting to MBC's. It seems if a high flow manifold is added then lots of surge occurs to until thats sorted I won't be going down that route. Anyway, Nick spent lots and lots of time on the custom mapping of this and it is now (I believe!) one of the only hybrid KO4's that is run purely on N75 control (Nice one Nick!)
Videos and pictures!
Engine bay...lots to do yet though, my other adapter finally showed up today so can start plumbing the braided parts in. N75 has to be relocated, breather system im waiting on all the oil resistant hosing to come and water coolant pipes forge stuff will be on its way after christmas is out of the way.
All safe inside with the old yank tank!
http://www.youtube.com/watch?v=BL6l7ayv2okhttp://www.youtube.com/watch?v=D2o7R8tkoVYAll I have to say is thanks so much to Nick for his time and effort on the mapping, I think the grin on his face was bigger than mine lol
The car really shifts now and the next upgrade will be watermeth/high flow manifold but im not going to be the guinepigg on that one. Another on SCN is having issues with major compressor surge on boost now he has upgraded the manifold so im not sure I'll be going down that route soon. To be really honest I think if I was going to the extent of a decent high flow manifold I'd go to a gt28 or similar turbo.
From the infomation I can also gather this is the ONLY hybrid KO4 unit currently mapped on N75 alone without using an MBC. That just goes to show how good Nick is at mapping cars. If I could give him ebay style feedback it would be something like....A************************* mapper, absolutly superb. Thanks again Nick, seriously made a brilliant end to my 2010, and I can only see 2011 being more fun!
Dan
