Originally Posted by paddy351
i have had it on a dyno and it was around 11.3 11.6 it runs a 750dp with 71s and 80s, My engine builder said that was rich but safe .It made 194kw at wheels and 594nm. We don't have drag strip in Adelaide so the car cruises alot. Will i make much power by going to 12-13 afr and will a hot summers day cause it to lean out to much.
Same power as my old 351
Yeah, it's safe.....it would make a few more HP.....hard to say as it's different for each setup. I don't think you'd feel it much in the seat of your pants though.
WRT hot days, the air is less dense (expands and is thinner), so if it will actually go more rich. A cold night has thicker, denser air, so this is where an engine could lean out. This is why engines make crap power on hot days.
Hot temp, smaller jets. Cold temp, bigger jets