1. Motorsport71

    Fuel Recommended Carb Size?

    So I have an '85 Mustang GT with a 302 automatic and 3:73 gears. I replaced the engine with a roller motor I purchased from Blueprint Engines. The dyno sheet that came with the engine showed 9:1 compression, 308 hp and 344 ft/lb torque (at the crank). I put a Holley 4160 600cfm with vacuum...
  2. R

    Engine Dreaded exhaust/ fuel smell inside car

    I know this is one of the more common issues with these cars, but it’s driving me absolutely crazy lately. I rebuilt my 302 about 5 years ago, using the gt40p setup. The car runs flawless when I do drive it, which is maybe once a month. Within the last 6 months though there is a noticeable...
  3. Mr.Roush02

    2002 GT Allen M90 Supercharger Install Tune?

    Hello! I am searching for somebody that has information on the Allen M90 Supercharger. I need to know what tune was added to the vehicle after install. Based on the upgraded fuel pump and fuel injectors etc. They couldn't have used the factory tune. If possible I need a calibration ID and...
  4. Motorsport71

    Fuel Trouble Diagnosing Hesitation from Timing OR Fuel Problem

    So i have installed a Blueprint Engine with 9:1 compression that dyno'ed 308 hp / 344 ft lbs torque. I installed a dual plane aluminum intake, a 1/2 phenolic spacer, a new Holley 4160 with vacuum secondary's, and an HEI distributor. For the drive line i have an AOD with 2400 stall torque...
  5. M

    Fuel Fuel Gauge stuck on full no matter what

    I bought my 1987 5.0 convertible in March. Since the day I got it, it's been stuck on full even though I've been driving it a lot. What could the problem be?
  6. wbrockstar

    Help Needed To Identify Wiring Component On Hanger At Fuel Pump

    Im trying to help someone id a component thats connected to their fuel pump hanger in a 94 Mustang GT.Ive searched for hours and still haven't come up with one image that appears like the one below.Not sure if its an item that came factory on the car or possibly aftermarket?? Does anyone with a...
  7. ryansgts

    2000 gt e85 conversion?

    So I’ve been looking into e85 conversions for my 2000 mustang gt with almost no luck. I’ve see. Dyno numbers and a bunch of conflicting info but that’s about it. Some say just fill it up with e85 and tune it, some say I need a bigger fuel pump, injectors, switch to braided lines, and a tune. Is...
  8. beyondEOD

    Fuel Pressure Sensor with Megasquirt

    Anyone running an electronic fuel pressure sensor with your megasquirt. I'm looking to add on on my 95. What is your setup?
  9. D

    Fuel Weird ping at high RPM/ high load

    Hey everyone, this'll be my second post to the forum (and probably not the last). Anyway, I've got a pinging sound coming from my 2002 gt's engine ONLY after peak torque in 3rd/4th gear WOT (5spd manual). I observe my fuel pressure going down by about 4psi (totaling 36psi) every time this...
  10. Sampinator

    Fuel 2001 Mustang GT Running lean both banks

    Hey guys, I'm new to the forum, I haven't been able to find much relevant information online about this issue, so here it is. My 2001 Mustang GT recently developed a lean condition on both banks (Codes P0171 and P0174). I got the engine replaced a couple months ago, the engine has about 98k...
  11. B

    e85 to 93 octane

    I switched my car over from e70 to 93 octane (have tunes for both). Since I switched the startups been rough and it idles at 250. I thought I had to much e70 at first but I drove around a bit and filled it up with 4 more gallons of 93 and it still does the same thing. Could my spark plugs be bad?
  12. B

    Coolant eruption... car cranks but won’t start... HELP please!

    So I was performing maintenance on my 99 v6 3.8 this past weekend, I replaced the valve cover seals and lower and upper intake manifold gaskets. Reassembled the engine completely and started it up. Car ran for approximately 15-20 while I was bleeding the coolant system. I loosened the upper...
  13. J

    93 mustang breaking up during acceleration

    Have a 93 lx that I bought a little over a month ago. Had some issues, and it sat for a while. New to fox bodies and still new to this car In general. So some insight from experience can help. Before I describe my current issue, I’m going to give some history on the things that I have done to...
  14. C

    92 fox 5.0 won’t fire, pump issue?

    What tells the fuel pump to shut off after priming? When I cycle the key on, The pump turns on and never shuts off. Bad pump? 1992 mustang GT 5.0 Will fire /Run on starting fluid has spark, correct plug order Ignition switch replaced Has 40 or so psi at the rail Injectors are getting 12v off...
  15. B

    Fuel pump harness not factory?

    I recently purchased a gas tank restoration kit for my 91’ lx that included a new sending unit. I’m currently running an external fuel pump setup and mistakenly threw away my old tank that had the old sending unit and fuel pump or pickup line (I can’t remember what was in the fuel pump spot). If...
  16. 8

    5.0 microsquirt mustang hits wall around 5000 RPM

    hello all, I'm new to the whole tuning scene and have been battling this problem for a couple weeks now. I have been asking around on the net for some help, but seems a lot of the sites are more about bashing and criticizing me for not knowing instead of helping.. One fellow i did run into that...
  17. R

    Can you replace metal fuel line with rubber hose under by the gas tank?

    Hey everyone, I’m new here. My fuel line under the car in between the gas tank and fuel filter rusted out and started spraying fuel. Could I just cut the rusted line out and replace it with a rubber hose and hose clamps? I tried looking up where I would even buy the metal fuel line but I can’t...
  18. 9

    Unknown fuel issue. Fuel pump not turning on

    So I’ve been having this trouble with my beautiful SN95 GT 5.0 mustang. When I turn the key the fuel pump doesn’t make any sounds at all. So far I have replaced the fuel pump, and the CCRM. I have tested the voltage and it’s getting low voltage but I think it’s just because it hasn’t started in...
  19. PakstinN

    high rpm miss

    hello all, lately I have been battling a high rpm miss in my car. she is a 1991 lx 5.0, fresh 306, ed Curtis cam, prepped p heads (ported and bigger valves). this miss seems to only occur at wot and above 4000 rpm, if my foot isn't in it as hard, it doesn't seem to miss. I can make a 3/4...
  20. S

    SN95 External Fuel Pump

    I'm almost ready to mount my Carter electric fuel pump and begin running line. I have a sumped stock fuel tank and I'm running -8an braided up to the carb for my 393w swap. Where does everyone mount external electric fuel pumps on these cars? I'm looking underneath the car and I cannot find a...