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Ford Crown Victoria/Mercury Grand Marquis Modifications

39 messages,  Last post on Jun 22, 2009 at 4:22 PM

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What is this discussion about? Ford Crown Victoria, Mercury Grand Marquis, Performance Mods, Exhaust, Sedan

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#26 of 39 Suspension parts Upgrades by abfisch Dec 07, 2006 (12:05 pm)
Have any of you changed the shocks to high performance shocks or changed the bushing to PU??/ Interested in buying a used CV and working on it myself, and wondering if anyone in this forum has done this. I have done this on my 02 Toyota Avalon with dramatic results.   abfisch
#27 of 39 Reprogramming Shift Points on 2006 GM by rhill7 Jan 01, 2007 (12:10 pm)
I just bought a left over 2006 GM with the handling, 3.27 rear axle, and dual exhaust package. I am happy with the power, but I would like to change how the transmission shifts and locks up. On my last car with OBDI, I was able to change the start in second gear so that with the shift lever in "2", it would start in first and then shift to second and then stay in second until I moved the shift lever to "D". I was also able to delay the shift to Overdrive and the convertor lockup to what I thought were acceptable speeds to avoid lugging the engine. I know that I can try to train my wife to use the "Overdrive Off" button in the column shift lever, but I'd like to avoid that if possible by reprogramming the transmission shift points.   Does anyone know who sells a program for editing the transmission shift points and lockup points? Or is that available commercially for this car? I'd like to do my own programming if possible so that I can make adjustments until I get it where I want it without having to send a computer back to a tuning person several times.   Or, what tuning persons work on our cars?   Thanks in advance. RHill
#28 of 39 Re: joe110 [marsha7] by rhill7 Jan 01, 2007 (12:26 pm)
Replying to: marsha7 (Jun 01, 2006 5:28 pm) The Electronic Control Module (ECM or "Computer") typically has a program with instructions like "If the throttle position sensor is greater than X% and the manifold pressure is greater than P, then set ignition advance to A and the fuel flow to F". The values of X, P, A, and F are found in tables which can be edited. Editing the tables can make use of premium fuel and provide more power if you decide to use premium fuel. Editing the shift point tables can also make the car perform more aggressively by keeping the transmission in a lower gear for longer. Other significant improvements to the car's performance will probably involve the traditional increase intake airflow and exhaust flow and cubic inches. Or increase airflow by supercharging and fuel energy with nitrous, etc. Most modifications will involve computer table modifications to get the most out of them.   To modify the computer tables, typically you copy the program/tables from your car to a laptop or destop computer, edit the tables, and then load them back into your car's computer "Flash the computer".   For what it's worth and your mileage may vary.
#29 of 39 Wanted - Mechanical info for 98 Mercy Grand Marquis auto repair. by wearewellable Jan 06, 2007 (9:38 am)
Our 1998 Grand Marquis 4.6 liter V8 has a small crack on top of intake where the thermos goes. Apparently it is plastic and to buy the part is supposed to be over $200. Is there a way to repair the small crack? Husband needs advice. Replies to this message: euphonium (Jan 06, 2007 8:40 pm)
#30 of 39 Re: Wanted - Mechanical info for 98 Mercy Grand Marquis auto repair. [wearewellable] by euphonium Jan 06, 2007 (8:40 pm)
Replying to: wearewellable (Jan 06, 2007 9:38 am) Check with dealer. That may be the intake manifold that has a factory recall order.
#31 of 39 Crown Victoria Gauges by chrismiller2 Jan 21, 2007 (4:24 pm)
I have a 1999 Ford Crown Victoria and was wondering if the gauge cluster of a newer model crown victoria such as the 2006 with the tachometer would work in the 1999.   Thanks for helping, if you can.
#32 of 39 Re: Question about dual exhaust [joe110] by royf Feb 01, 2007 (9:46 am)
Replying to: joe110 (Apr 04, 2006 1:21 pm) Hi Joe: I own a 04 CV Sport that came with dual exhaust. Each bank on your engine has a cat before it goes into a single pipe. I owned an 04 Cv with a single exhaust & had duals put on it.No problems at all & you will see a marked increase in performance with the duals.
#33 of 39 intake manifold 1998 by greeley Feb 10, 2007 (11:12 am)
My manifold is also cracked. Looking for recall info for it but cant find it. Also when i went to the dealer they said that it was past the 7 year warranty period and even if there was a recall they don't fix it. I think that is bull(*&^. Any other advice or stories about intake manifolds?
#34 of 39 Headers to replace exhaust manifold. by pimpin69 Feb 12, 2007 (3:31 pm)
I HAVE A 2000 CV/PI. DOES ANYONE ONE KNOW WHAT KIND OF HEADERS WILL FIT TO REPLACE THE EXHAUST MANIFOLD? I CANT FIND ANY.
#35 of 39 24" inch rims by hyphy Aug 30, 2007 (6:08 pm)
yes i know its silly. but what mods do i have to do to 97 vic to put these rims on it. spacers? cut wheel well? Replies to this message: euphonium (Aug 31, 2007 10:10 am)

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