One single 255l fuel pump? If so, not enough fuel. Other than that, the most important thing for going to they dyno is that nothing is leaking, broken or otherwise falling apart. I hate to say it but 80% of the cars that are brought to us have leaks, about another 50% are falling apart and 20% are broken to some extent. My biggest pet peeve is cars that come with electrical problems, that honestly is the point where we stop. There is nothing worse than fighting problems that should have been identified and taken care of before hand. Now we all know that problems arise and that is ok, things break and everyone understands that. For example, on more than a few occasions cars have come in with exhaust leaks. The wideband will not read correctly with an exhaust leak, to that end we even had a turbo car with cross threaded header bolts. Not only was the wideband reading incorrectly, the car wouldn't make enough boost either - see how that is frustrating? Just a word of advice, triple check everything!
I can honestly say that
@TOOLOW91 and
@RacEoHolic330 impressed me on the dyno, both new builds and both cars were more than prepared. Considering both were new builds they both ran without leaks and everything worked as expected. One (who will remain nameless -
) lost a fuel pump towards the end of some tuning, but that is quite alright... It happens.