Crown Vic P71 Performance

[mrjeff99]

ModMech, I must respectfully disagree. Down here in Tuscaloosa our Ford CV Poleeze cahrs were ordered with 850 SHP gas turbines and the CVT transmission. Let that puppy spool up to 20,000 RPM and let the chase begin! We're actually able to persue those pesky little Honda's running nitrious with Lexus engines over the draw bridge jumps! You can imagine their suprise as the see a full size Ford police car closing fast on them in their rearview mirror while they are going 130 mph!

[sirsmiley]

CVPI are not anything like a stock one....they ride rougher/stiffer compared to an LX and they have heavy duty suspension and oil/tranny coolers...they are also made to idle for long periods of time

additionally it has about 25 horsepower more than the LX which has 224...

we have chargers and impalas at our station as well and they break down constantly compared to the abuse that the CVPI gets....we wont be buying any more police chargers or impalas...

they handle much better than a FWD car at higher speeds and the RWD police cars seem to last a lot longer than the FWD impalas...

not as great in the snow though

cvpi's are not considered super fast accelerators or anything like that...what they can do however is cruise comfortably at high speeds for long periods of time, theyre built solid and rugged to take a beating and keep on driving...they are considered a crude car and because of that, they work and work and work...read up on an article on google about checkers cab and cvpi, they get them 3 years old and thats just broken in for them....

if you want to talk about big slow cars that are pieces of garbage..how about a chrysler 300C .....the base models are soooo slow...and its soooo big..the hood is so long i cant go fast around corners with it, youre afraid youll tbone someone at a crossing when making a corner!

speed sensitive steering is also great on cvpis!

[northsouthrick]

The CVPI has a much more beefy suspension..and depending on how the department ordered it, can have a much more faster turn to turn steering than a civilian Crown...not to mention the chip....no governor...try to peg out a regular crown.........

Originally Posted by ModMech

There is really no appreciable difference between a police cruiser and a regular old Lincoln Town Car or Mercury Grand Marquis in power or performance. Give or take 0.30s in the 1/4, one is just as quick as the other. They have EXACTLY the same engines, transmissions rear ends etc in them. The gearing varies by model and year, but they are all very similar.

The real differences in the CVPI is the frame, electricals,features and options for the departments to tailor the cars for their use.

Really, a CVPI is basically a stripped down version of a CVLX/Town Car/ Grand Marquis with some lights, a cage, and antennea on it.

[northsouthrick]

Hahahaha....thats ok....I will let you stick with your Caprice...and its floaty little ride over a 100, with its freaky front wheel drive...no thanks..

Originally Posted by 91Caprice9c1

You guys want full-size ex-police cars, forget about the vics.. get yourself a 96 caprice 9c1 like I did. Great car, parts up the wazoo, lots of information at impalassforum.com. I had a 91 9c1 and loved it so much I bought a 96 9c1 with the LT1. It'll dust the latest vics out there - every cop I talk to tells me how s/he misses their 9c1's. The fords are nicer inside.. but their drivetrains are garbage. I rebuilt a 4.6 out of a 99 expedition - it's actually built quite well, except it'll never have the parts accessibility the caprices do, and it'll never have the torque the caprices do without some work. Had my 96 at 130 with maybe a quarter pedal left and backed out. Guys on the forum have 140mph flyby vids - great car man. Theres a guy on the forum running 11.90s 1320 with a STOCK shortblock N/A!! And he sure isn't the only one. Show me a vic that does that. But the vics do look nice, and they are nice inside that's for sure.

[way2old]

Originally Posted by northsouthrick

...not to mention the chip....no governor...try to peg out a regular crown.........

Could you inform me where this "chip" is? I have worked on the CVPI since 1984 and we have have never found a "chip" in them. The 3:23 gears has a fuel cut off at 128 mph. The 3:55 shuts down at 118 mph. So, where is the aforementioned "chip"?

[northsouthrick]

Well, lets put it this way...I have no idea where the so called chip is...I am not a mechanic, you are...but, because you are a mechanic then you can tell me why my 2003 CVPI does NOT cut out?

Originally Posted by way2old

Could you inform me where this "chip" is? I have worked on the CVPI since 1984 and we have have never found a "chip" in them. The 3:23 gears has a fuel cut off at 128 mph. The 3:55 shuts down at 118 mph. So, where is the aforementioned "chip"?

[way2old]

Here is a part of the PC/ED manual on the engine speed. SO if I am reading it correctly, it states it shuts off fuel to the injectors when the rpm reaches a pre-determined rpm. This rpm is set by the values in the PCM. This is from the 2003 Ford Crown Victoria/Grand Marquis manual. These are the same for the CVPUI and the civilian version. The difference is the CVPI has a choice of gearing that the civilian does not.

Engine RPM/Vehicle Speed Limiter
The powertrain control module (PCM) will disable some or all of the fuel injectors whenever an engine rpm or vehicle overspeed condition is detected. The purpose of the engine rpm or vehicle speed limiter is to prevent damage to the powertrain. The vehicle will exhibit a rough running engine condition, and the PCM will store one of the following Continuous Memory DTCs: P0219, P0297 or P1270. Once the driver reduces the excessive speed, the engine will return to the normal operating mode. No repair is required. However, the technician should clear the PCM and inform the customer of the reason for the DTC.

Excessive wheel slippage may be caused by sand, gravel, rain, mud, snow, ice, etc. or excessive and sudden increase in rpm while in NEUTRAL or while driving.

[northsouthrick]

Well, it does not cut out MY 2003..hahaha...guess I will just keep my mouth shut and enjoy...........

Originally Posted by way2old

Here is a part of the PC/ED manual on the engine speed. SO if I am reading it correctly, it states it shuts off fuel to the injectors when the rpm reaches a pre-determined rpm. This rpm is set by the values in the PCM. This is from the 2003 Ford Crown Victoria/Grand Marquis manual. These are the same for the CVPUI and the civilian version. The difference is the CVPI has a choice of gearing that the civilian does not.

Engine RPM/Vehicle Speed Limiter
The powertrain control module (PCM) will disable some or all of the fuel injectors whenever an engine rpm or vehicle overspeed condition is detected. The purpose of the engine rpm or vehicle speed limiter is to prevent damage to the powertrain. The vehicle will exhibit a rough running engine condition, and the PCM will store one of the following Continuous Memory DTCs: P0219, P0297 or P1270. Once the driver reduces the excessive speed, the engine will return to the normal operating mode. No repair is required. However, the technician should clear the PCM and inform the customer of the reason for the DTC.

Excessive wheel slippage may be caused by sand, gravel, rain, mud, snow, ice, etc. or excessive and sudden increase in rpm while in NEUTRAL or while driving.

[way2old]

I think we all got off track here. So I am going to close this very old thread. Thanks for enjoying it long after it has died a few deaths.