Is it fuel or my heads

[87lxstang]

Here is my problem my car stock with 2.73's ran a best 14.4 @ 97.17mph with a 2.242 60ft on street tires. Now with the mods listed in my sig it ran a best of 14.2 @ 99.93 and a 2.153 60ft. I tried shifting different rpm ranges, fuel pressure changes, timing changes and the results were no better. It feels faster with the mods but it is not producing it at the track. I don't feel no drop off in power neither. So mainly my question is should I change to bigger injectors or get better heads, right now I don't have the funds for the heads I want but if there is some other thing that would help me out it would be greatly appreciated. Thanks

 

[88stangmangt]

ya with your combo i would atleast try 30 or 32 lb injectors you might be starving for fuel.

P.s dont forget to get that MAM calibrated too.!!!!!

 

[Stang8URMPRT]

30-32 lbs injectors for that combo?! Are you on crack? lol The 19s can support 300 HP, and with what you have done, you MIGHT have that. If anything, maybe 24s. 30s are way over kill. Too much for your combo. You should be running faster... Definately mid 13's on street tires. Get the car on the dyno and see what's going on with the air fuel ratio and have it tuned. You might have a bad injector too.

Nick

 

[Idwitheld-1`]

Those 2:73's are holding you back. You're giving up a lot of time trying to get the motor into its power band. 3:73's will help.

 

[87lxstang]

I do have a set of 30lb'ers on hand but I would have to get my maf calibrated

Stang8URMPRT - your saying it would be to much fuel with 30's but would it run that rich with my setup where it would be a big waste of fuel especially how gas prices are? On another note my buddy just bought a hand held a/f ratio meter but he has not used it yet to see how it works I guess I could be his tester

Idwitheld-1` - I was explaining how it was when I had 2.73's now I have 3.55's and the powertrax locker