Join Date: Mar 2013
Location: Brisbane, Australia
Re: 540 BBC Dyno and Fitech Meanstreet & Command Center Install
Returned to the track this past weekend after replacing the Fuel Pump in the Tank with an Aeromotive Stealth 340 Pump, did a flow test & numbers were looking good.
This time drove to the track, air temperature was in the high 80s, car was running between 180-190 on 45 mile journey, filled up the tank before leaving so would have arrived with 3/4 of a tank minimum.
First pass left on Trans-brake at around 3500 and nosed over after 60 foot mark so cruised to finish line, drove back to staging lanes this time with plan to only foot-brake, left at about 2800 and leaned out again after 60 foot mark, backed off but then got back into it and crossed the line at 121mph.
Returned to the Pits, popped the hood, the Fuel Pressure Gauge was only reading 40psi, had acquired a replacement Bosch Fuel Regulator to suit Throttle Body, fire engine back up and pressure was back to 58psi.
Was feeling confident on third run, stayed with the foot-braking, however was again nosed over after 60 foot, got out of it then back into and crossed line at 119mph.
On fourth run foot braked again, even less rpm then previous run and shifted into second at 4000rpm, however kept going lean so cruise to end once again.
Drove home with no issues, reviewed Datalogs, confirmed going Lean after launch, but the 2nd & 3rd run where I pedaled showed that was running perfect over back half of track.
From this am thinking the Fitech does not like under hood heat or the Tanks Inc setup cannot cope with sudden acceleration despite it's baffling & internal fuel tray.