MoTeC Global Forum

Hi every body

a few days a go during auto cross comption the track only 1:30 min after finshing the track I heard the engine making tiking sound badly , and the car was before very good
I saved the data looging and the file
So can any body tell me what wrong was lead to broke my engine
The engine EJ25 stroker 2.71L GT35 Big cams and a lot more
I was Running anti lage On and less than 1 Bar of boost on 98RON fuel

Thank's in advance for your help guys
M.Olabi

Your log file is not showing much, you seem to have lost the lambda reading during the run. What broke in the engine?

Dear Ross B

Thank's for rplying
the rod and the rod bearing for the first piston broken and I notice some knock mark also on the same piston(the car stroker pro BC 2.71 engine can handel over 650HP)
Also I notice on the 1 gear at 5000rpm 200kpa the car run 1.00 lamda reading but on the 4 gear the car at 5000 200kpa the car run 0.80 lamda Whay ? this happen only in the short track (autocross) when I used 1 and 2 gear only and a lot on and off TP

Thank's a Lot
M.Olabi