24s will gain you nothing on a stock Mustang GT to even a Mustang GT with all bolt-ons. If anything, you'll run rich and lose power. I ran 24s on my all bolt-on GT and monitored the fuel through a scanner and my fuel was way rich at part throttle and WOT. So 10s are your best bet. You won't need 24s until you either have a lot more compression and/or ported heads/aftermarket cams.I've been curious about this too...on basically stock cars, would 24lbs be any gain over stocks. Obviously a tune would be necessary, but what maf would be suitable?
I had a tune and my trims went super rich. I then tried 24s with a MAF sensor calibrated for them and it still went rich. Then I tried the MAF sensor and also tuned it and it was rich. Ran the 19s and it was fine. I monitored my trims in real time on a professional scanner. Even when I adjusted the fuel through my tuner it still was rich. Nothing I did with the 24s worked. And this was on a full bolt-on GT.with either a properly calibrated maf or a tune for the injectors, the vehicle will not be rich. I will also agree that they are not needed on a bolt on car though
Who said stock motor ? The motor I'm having built is a 3.8 block bored an stroked to 4.3 with performance, cam stage 2 ported heads an all the other good stuff that I'm to lazy to list. So this motor is fare from stock.I'm really unsure of why your builder would recommend the larger #24 injectors on an otherwise stock motor? Unless you have increased your motors need for fuel through modifications you absolutely don't need them, and there will be 0 performance gains whatsoever. The fuel system on a GT has a fair amount of growing room (bolt-ons) before you need to start seriously upgrading it. All bets are off if you decide to go forced induction because that would obviously necessitate such upgrades.
I had a tune and my trims went super rich. I then tried 24s with a MAF sensor calibrated for them and it still went rich. Then I tried the MAF sensor and also tuned it and it was rich. Ran the 19s and it was fine. I monitored my trims in real time on a professional scanner. Even when I adjusted the fuel through my tuner it still was rich. Nothing I did with the 24s worked. And this was on a full bolt-on GT.
were talking about a six banger19's are plenty
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