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  1. trinity_gt

    96 Gt And It Is Misfiring On Cylinders

    I'd do a compression test next.
  2. trinity_gt

    Engine Best Cam For Application?

    Unless you're after a super-lumpy idle at the cost of low RPM torque (e.g. using Comp XE270AH cams) I'd stick with Comp 262AH cams; you can see 20 or more HP near redline with no loss down low with these cams and can stay with stock springs if they're in good shape. I'm running 262AHs and am on...
  3. trinity_gt

    Suspension Dead Spot In Center Of Steering And Koni Adjustment Issue

    Assuming everything is tight, bushings are good etc, I'd start by re-checking your alignment, specifically, the toe angle.
  4. trinity_gt

    Help 4.6 Engine Tick

    There's no provision for adjustment, unfortunately. If you've checked the plugs on those cylinders and they're nice and secure and, if you're worried about the sound, the next step would be to remove the valve cover on that side for a visual inspection.
  5. trinity_gt

    Help 4.6 Engine Tick

    Can you localize the tick to one side or the other? Top or bottom? Front or rear? If it's one side or the other, it's possibly sticky valve lash adjuster. What grade of oil do you run? Ticking from the top can also indicate a loose plug (compression & combustion pressure working its way past...
  6. trinity_gt

    Engine 97 Gt Cranks But No Spark 5.4l Swap

    Good find. Question for you: What damper are you running? OE Ford or aftermarket? If it's aftermarket, the failure of the trigger wheel may be attributable to that, either because the crankshaft bolt was incorrectly/insufficiently tightened or because the damper is not tuned (mass, durometer...
  7. trinity_gt

    Emissions Help

    Hard to tell. I have a PC based scan tool that allows me to plot parameters and I could see that the driver's side output looked incorrect; I wasn't getting a cat efficiency code but decided to replace the sensors anyway. The plots looked better and soon after the readiness code set. I don't...
  8. trinity_gt

    Emissions Help

    You might try this: http://www.obdii.com/drivecycleford.html to see if you have any luck. On mine it took ages for the cat readiness to set; I ended up replacing the rear sensors, drove it around and, when I saw that they'd finally set, went for an e-test right there and then :) My car never...
  9. trinity_gt

    Emissions Help

    Does the car have the original catalytic converters and rear O2 sensors?
  10. trinity_gt

    2003 GT stock rearend????

    Not worth it.
  11. trinity_gt

    5.0 Stroker How To Verify?

    It'd have to have been stored pretty carefully for me to consider buying it if it had been without a pan for the last 6 mos. That's sucky. As for whether or not it's a stroker how about: - pull a plug out - rotate the crank until the piston on that cylinder is at TDC - obtain a length of...
  12. trinity_gt

    Head Gasket Leak

    For the ticking sound, you might check your spark plugs. These engines have a history of popping plugs (they loosen and combustion pressure leaks around them until the threads fail and the plug pops out of the head...) But it might be moot if your engine is putting coolant out the exhaust...
  13. trinity_gt

    Mass Air Change?

    I wouldn't. There's lots of measurement margin on the sensor and it is of little restriction. FWIW, I'm on the OE sensor so...
  14. trinity_gt

    2003 GT stock rearend????

    Super-rough calculation for you: Assuming your 19s have a similar-to-stock outside diameter, they'll turn roughly 810 revolutions per mile. At 70MPH you'd see roughly 945 wheel RPM. If 5th gear in the transmission is 0.62:1 then engine RPM is given by: Engine RPM = Wheel RPM x Rear Gear x...
  15. trinity_gt

    Drivetrain Bad Trans?

    Difficulty shifting could point to a clutch that's not fully releasing. How far off the floor does the clutch begin to "take up"?
  16. trinity_gt

    Shaking On Take Off

    My guess is that the problem is in the clutch. You just bought the car: What do you know about the clutch? Is the car modified such that a previous owner may have installed a "performance" clutch? "Stage" clutches, as people call them, often have puck-style faces and can be very prone to...
  17. trinity_gt

    96 Mustang Gt Shudders Under Throttle Why?

    The humming sound might be key: Take the tube connecting the MAF to the throttle body off and check it carefully for cracks. If it's cracked, you're getting unmetered air into the engine (i.e. a vacuum leak). The humming sound may be air entering the intake through the crack.
  18. trinity_gt

    01 Mustang Gt Rebuilt Engine Knock

    The EGR angle is intriguing. It does sound a lot like detonation but the circumstances (light load) seem odd. One thing that might contribute to light-throttle detonation is no EGR, especially if the tune expects it. Exhaust gas is inert and when it's introduced into the combustion chamber it...
  19. trinity_gt

    How Strong Are These Motors?

    Yep.
  20. trinity_gt

    How Strong Are These Motors?

    I don't think the 4.6 SOHC motor runs particularly tight tolerances. The 5W20 spec from the factory comes from directives to reduce pumping losses to improve fuel economy for CAFE fleet numbers. The 5.4L mod in the GT500 uses 5W50. I run Rotella T6 5W40 in my GT. I also run it in my Subaru...
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