Quick Nick
Member +
I have been running my car for about 3 months with this issue now and thought I would report.
Since I got my Tong Hybrid back from Turbo Dynamics where it was further hybridised (is that a word?) on stock ecu with fcd, mbc and rrfpr, it was rolling roaded where the engineer told me it is running lean at anything less than 4 BAR fuel pressure. This is for low boost about 7-8psi.
This seemed a little high (understatement) to me and I was getting probably about 15mpg so it was ludicrous. I since turned down the fuel pressure slightly to about 3.8BAR as I know the fuel pump (stock) and even the injectors wont last long at that level.
For about 2-3 months I have been driving around, not ragging it butdriving normally, and getting about 180 town driven miles out of a tank. This seems to be just over 20mpg and so clearly isnt right.
I know the only solution is to get it completely mapped with a new ECU but this is not an option at the moment. I am about to order an uprated fuel pump as this has been on the to do list for a while, but will the uprated pump will help bring down the required fuel pressure or will it simply run the same amount of fuel at 4 BAR but not be as near to its limits as the stock fuel pump?
In short, is my stock fuel pump knackered and that is why the required pressure is so high to get the right amount of fuel in? Or is it simply a crazy turbo that needs that amoun of fuel? I cant imagine it is the latter..
Since I got my Tong Hybrid back from Turbo Dynamics where it was further hybridised (is that a word?) on stock ecu with fcd, mbc and rrfpr, it was rolling roaded where the engineer told me it is running lean at anything less than 4 BAR fuel pressure. This is for low boost about 7-8psi.
This seemed a little high (understatement) to me and I was getting probably about 15mpg so it was ludicrous. I since turned down the fuel pressure slightly to about 3.8BAR as I know the fuel pump (stock) and even the injectors wont last long at that level.
For about 2-3 months I have been driving around, not ragging it butdriving normally, and getting about 180 town driven miles out of a tank. This seems to be just over 20mpg and so clearly isnt right.
I know the only solution is to get it completely mapped with a new ECU but this is not an option at the moment. I am about to order an uprated fuel pump as this has been on the to do list for a while, but will the uprated pump will help bring down the required fuel pressure or will it simply run the same amount of fuel at 4 BAR but not be as near to its limits as the stock fuel pump?
In short, is my stock fuel pump knackered and that is why the required pressure is so high to get the right amount of fuel in? Or is it simply a crazy turbo that needs that amoun of fuel? I cant imagine it is the latter..