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  1. Tire Pressure for track racing

    Road Racing
    Hey guys, I'm going to be heading to my first track event this weekend. I have tried to research this information as best I can, but have gotten many conflicting answers. In the case of tire pressure, should I be following the recommended door pressure on the car? Or should I be using some %...
  2. Vacuum readings are high. HELP!

    4.6L Tech
    Specs: 2004 Mustang GT Vortech V-2 (water to air intercooler) 60# injectors Stealth Fuel Pump BBK T/B I am currently seeing 360 hp and 340 ft/tq on the most recent dyno pull. Just two months ago it was at 400/400 hp/tq. My boost gauge shows anywhere from 5-10 in hg while at idle. When I...
  3. Stock fuel pump

    2011 - 2014 V6 Mustang Tech
    Just curious, anyone know what the max psi is on the stock fuel pump for the 2011 v6? is it the same or more for the gt?
  4. fuel pressure with E303 cam.

    5.0L Tech
    Hey, My cars been running a little rich latly, for example I only got 180 kilometers to a tank. I checked my fuel pressure and im getting 45psi with the vacuum line off. With the vacuum line on im getting 40 psi. I think this is a little high but want to get a little input.
  5. 1988 Mustang gt throttle position sensor problem

    5.0L Tech
    i have and 88 gt 5 speed and just installed new tf upper/lower, fenderwell cai and 70 mm throttle body with egr plate...we jus swapped over the old parts on the stock throttle biody to the new throttle body and i know i need to get the correct voltage from the tps but do i need to adjust the...
  6. How much PSI can a stock bottem end hold?

    5.0L Talk
    Hey, going to be supercharging my 5.0 mustang, bottem end wise, its been rebuilt with all new bearings, rings and what not (July 2009 only about 600 miles on it.) Was thinking to run about 6 PSI but wondering what should I set it at for a daily driver. 255 pump, 42 LBS injectors
  7. vortech v3 supercharger good?

    5.0L Talk
    so im looking at superchargers ill probably buy used and i like vortechs v3 internally lubricated supercharger Vortech 4FA218-040L - Vortech Centrifugal Supercharger Kits - Overview - im considering the 5-6 kit or the 8-10 but my 1993 non forged pistons might be a problem,maby...
  8. maby a supercharger in my future

    5.0L Talk
    right now im changing to gt40p heads cobra intake 65mm tb trick flow valve springs and 1.7 cobra rocker arms tfs stage 1 camshaft and if thats still no enough i want to buy a supercharger (probably used) i want to run more than the 5-6 psi from vortec so maby my car can last with the 8-10psi or...
  9. t3 turbo help. and maybe a few other questions.

    V6 Tech
    so i remember a few people told me 4.4psi was about the most a stock v6 can hold for my 2000. would 5psi be too much? i mean would that .6psi really make a difference in the motor wear??
  10. what PSI should i run my tires at?

    Wheels and Tires
    Hey Guys: Okay heres the deal. Ive got a 88 5.0 LX Mustang, with the stock suspension. Ive also got 2003 Cobra rims wrapped in 235/45ZR17 Lexani tires. Right now the tires are at 35 PSI and it rides like a brick. Should i lower the PSI? Im scared if I lower it to much that when I hit a bump I...
  11. I need help..please(fuel problems)

    5.0L Tech
    I'm new to Ford. I just bought my 1988 Mustang 5.0 (speed density) about a month ago. I am now have problems with it. It starts easy but when i shift into first and get about 2000 RPM it starts to bog down. I have to keep under 2000 rpm through all gears to keep it from blogging down and shuting...