More Fuel? Help Needed

[Tizer]

After much pondering and still no idea, i thought id post up result of a RR i had done a few weeks back,

The man said it needed more fuel? is this correct? He also commented that i may need a new fuel pump of 4bar to eliminate the problem and get another 10-15bhp out of it.

I spoke to IbizaCupra who said
"wideband on car would confirm, but it may well be on the lean side as we cant tell on ibiza's as the stock lambda is narrow band.
If BEnnys experience is anything to go by, it would'nt surprise me if there was a 4bar fpr in there that the pumps pressure may be sagging slightly..

You might be able to recover some of the lean with unisettings and the like, but if its mechanical pressure issue, you should sort that first."

any help with this would be great so i can get it running schweeet.

It was running 195bhp on a mapped KO3s,

Thanks, Rich

 

[mrmattholmes]

check the fuel pressure from the pump, my car started running lean and the pump was at fault

 

[pj1985]

3bar or 4bar fpr?

 

[__B3NNY__]

Check what FPR you actully have in there.

When i changed my fuel pump it was night and day difference, it seems either the pump couldnt keep up with the 4bar fpr or my pump was on the way out.

My car used to hold back somthing terrible on WOT, although i managed 231bhp (dyno lottery) you could see that it was holding back by the pretty big dip in the graph.

How does it drive? Try going from say 30mph upwards in 4th and see if you feel it holding back.