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  1. Stan Weiss

    How much horse power would i have...

    A couple of questions you need to ask yourself. How much HP do I want to have? What is my budget for this project? Is it possible to get the HP increase I want within my budget and what will give me the most HP increase for each dollar spent?
  2. Stan Weiss

    please help..why are my HP numbers so low

    On what dyno did you get these numbers? Are these corrected or uncorrected numbers? What was your air fuel ratio throughout the test?
  3. Stan Weiss

    Check Engine Light on PO442

    I would have him take a look and make sure that there is no problem there.
  4. Stan Weiss

    Check Engine Light on PO442

    0442 - Evaporative Emission Control System Leak Detected (small leak) You need to find out what is causing it. On my '00 GT it is the gasket where the filler neck goes into the tank. Stan
  5. Stan Weiss

    Top Speed with a KB 2.1

    Never going to happen. Does not add up. Stock tires with 3.73:1 4500 RPM = 137-138 MPH Stock tires with 3.27:1 4500 RPM = 157 MPH :shrug: Stock tires with 3.73:1 5460 RPM = 167 MPH :rolleyes: Stan
  6. Stan Weiss

    Top Speed with a KB 2.1

    Having the RPM and having the HP or 2 different things. Stan MPH = 170 Rear = 3.73:1 Tire Diameter = 25.68 (245-45-17) Trans Gear Ratio (manual 5th ) 0.67:1 RPM=5559 Calculate RPM for given Speed(MPH), Rear Gear Ratio and Trans Gear Ratio Automotive Performance Software /...
  7. Stan Weiss

    Top Speed with a KB 2.1

    You can see where at about 5230 RPM it takes more force to push the vehicle than is available at the wheel. Acceleration and Top Speed Prediction Chart. Force Aero Rolling Elapsed Accele RPM MPH Velocity...
  8. Stan Weiss

    Top Speed with a KB 2.1

    How much HP are you making? Here is what you will need.
  9. Stan Weiss

    Coil Packs / Plugs

    Unless you are having a problem why replace the cop's?
  10. Stan Weiss

    39# injectors good to what rating?

    fuel pressure - boost pressure = pressure differential. Are you running a boost referenced fuel pressure regulator?
  11. Stan Weiss

    39# injectors good to what rating?

    An N/A engine may have a BSFC of around .4. That means it will make 1 HP from each .4 pound of fuel per hour. While a boosted engine is not as effcient and may be around .5 pound of fuel per hour. 8 - 39# injectors at 90% Duty Cycle is 280.8 lbs /hr of fuel. The more efficient your...
  12. Stan Weiss

    39# injectors good to what rating?

    There is no one answer fits all. Based on how efficient your engine is the more HP per pound of fuel it will make. 8 - 39# injectors at 90% Duty Cycle. Equation (39 * 8 * .9) / bsfc bsfc Flywheel HP 0.4000 702 0.4200...
  13. Stan Weiss

    How fast is my car?

    We do :shrug: What do we have to base that on? It has been answered. The only way to know for sure is to take it to the track. Based on a HP and torque number the best that can be done is a guess. Does this dyno read high does this dyno read low. Are these corrected numbers and if so to...
  14. Stan Weiss

    Mustang Turbo

    Once you get your mass air flow down I like to look at as 3300 lbs/hr. You can than start on fuel. At 11.5:1 you need 286.2 lbs/hr. Then you can look at inter coolers which finally brings up inlet charge temperature / density ratio the real number to tell how much HP you will make.
  15. Stan Weiss

    Is a Wet 75hp Shot Safe?

    Computer simulation of 75 Hp, 100 HP, 125 HP added to stock 2v PI. Note how high lower RPM torque is. :eek: Stan
  16. Stan Weiss

    Effect of Rear Gear Ratios on Trap Speeds

    Lower Rear Gears increase torque multiplication. So you have more wheel thrust / force in each trans gear.
  17. Stan Weiss

    Effect of Rear Gear Ratios on Trap Speeds

    Lets start by asking if you thing the car will run a quicker et with the gears?
  18. Stan Weiss

    Calculations - the REAL effect of rotating weight

    This is what makes people that drive different class / speed / hp vehicles so impressive to watch. As each vehicle will take a different amount of time to travel the roll out distance. They have to mental adjust to this so as to not red light. Then you can through in deep and sallow staging. :eek:
  19. Stan Weiss

    Trickflow Dyno results!

    Looks like a nice N/A 11 second street combination :D
  20. Stan Weiss

    Trick Flow 2V N/A 408hp on Horse Power T.V.

    I guess things have changed since that add. From their web site. CNC Ported Stage 2 4.6L 2-Valve P.I. Cylinder Heads Available in Romeo or Windsor Casting 5 axis CNC machined Fully assembled w/o camshafts Intake flow rate 207 CFM Exhaust flow rate 195 CFM CNC Ported...
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