A month after our last outing, our 1995 M3 here has a whole new fuel system - with new injectors, fuel rail, lines, and 2 in-tank pumps + a pump in the trunk inside a Radium fuel surge tank. GSpeed also completed the 2nd tune where the engine now can rev to 7000 rpm and it makes 242 whp (up from 216 whp stock). 

We tried to run it March 29th with only 5500 rpm available, due to the maxed out stock injectors, and ran a 1:22.5 on the MSR 1.7 CCW. It was difficult to keep the engine in the powerband with this artificial rev limit, but it was still quicker than this test day. Something started to happen to the fuel pump inside the surge tank after Terry's 2nd lap, and in this video, after Amy's 1st hot lap. 

She knew that noise meant it was time to come in, so her 1:26.2 lap after her first hot lap is not indicative of this car's potential either. Finding this bad pump on a test day is why we test - we will get this pump replaced and get ready for a 2-day SCCA TT event at ECR next weekend. Thanks for watching!