Quote:
Originally Posted by that1seven
ok someone explain to me why i lost hp?
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The most obvious reason is because your AFR was at 15.1:1 with the Unichip and around 12:1 stock.
It is generally accepted that the target AFR for maximum torque is
around 12.5:1. Of course all engines are different and will need to be fine tuned to find their "sweet spot". But, it's always richer than stoichiometric (14.7:1). The bottom line on your pull was that there was a surplus of oxygen in the cylinder that more fuel could have been burned with.
It'd be helpful to see the AFR that Ryder276 ended up with after his custom tune.
I wish you luck, man. I'd be pissed about a $600 box that needed a $300 custom tune to work right.