Sean, Have you looked at the MAF by any chance? We are having issues with the MAF reading the correct airflow at higher boost. I don't think fuel is an issue at this point but we are definately having problems with the ECM reading the airflow properly (at>5 psi). Also, have you looked into the tuning of the ECM yourselves or are you working with someone else? Lingenfelter was concerned that they wanted more horsepower out of their system and I suspect they gave up due to problems with safefully increasing the boost. Also, the Leno car only had about 360+ish (I forgot what the actual number was) on their twin turbo so I would suspect they couldn't crank up the boost as well.
|