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post #16 of (permalink) Old 07-22-2015
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Quote:
Originally Posted by Dwayne J View Post
Far as top speeds the Impala came with a 154mph speed limiter, 9C1 several options all the way up to 147mph.
NO Sir. (Respectfully) Not on a STOCK 1994-1996 Impala SS or a 1994-1996 9C1 Caprice 5.7L.

In fact as it turns out with me doing further research, the 1994-1996 9C1 did not have a speed limiter, it was essentially drag limited according to the Michigan State Patrol testing performed on the 1994-1996 9C1 5.7L engine.. which in essence would be the same for the Impala SS. Sure you might get a stock SS or 9C1 into the 150s going down a hill.. and the speedometer on the 96 SS (Analog instead of digital) certainly reads that it might be able to go upwards of 150.. buuuut.. if you wanna go fast, you gotta have power to over come the drag (and eventually redline)

https://www.ncjrs.gov/pdffiles1/Digi...54252NCJRS.pdf (page 41)
https://www.ncjrs.gov/pdffiles1/Digi...54252NCJRS.pdf (page 3)


You can try to argue this with me until you are blue in the face. The numbers speak for themselves. If you'll look at one of the links above, you'll notice that the Camaro's (both auto & 6-Speed) were maxed out in the high 150s, (not being electronically limited either) being a lighter car, more aerodynamic, and having 25 more HP to boot. I recall the auto magazines at the time (1993-1996) reflecting the top speed, 1/4 Mile, and 0-60 times as that was all us high school boys cared about when it came to performance

Add to that while employed at the local Sheriff's Office (not as a law enforcement officer but rather as an aid to fleet services and patrol) I did countless ride-a-longs with them, State Patrol, and several other surrounding jurisdictions and none of the 94-96 9C1s would get above 142 on their "certified" speedometers, add to that the radar guns also showing current vehicle speed. They were quick and VERY quick for that time, but you can only go so fast with the HP they had available.

Again, respectfully.

Last edited by Username; 07-22-2015 at 04:47 PM. Reason: adding my respects.
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post #17 of (permalink) Old 07-22-2015
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What was the weather and were they tested with light bars? The jurisdiction you worked in, what was the elevation?

Your info is incomplete.

Civi Caprice was 108 due to S rated tires
9C1 was something around 125 or 147 depending on tire option.
Impala was 154 with it's z-rated tires but most were wind limited to high 140s as the engine was BELOW peak HP rpm, 3.42s can actually increase the top speed but the driveshaft needs to be upgraded or risk a "critical speed" resonance failure.

I have owned the pcm programming software for 12-13 years and have seen the programmed limiters myself.

The info on all this was common knowledge a decade ago, but is harder to find today because so many newbs post the wrong info so many times the good info gets lost.

Dwayne
96 Caprice with AI 200cc package
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Best MPH 116
Just another taxi
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post #18 of (permalink) Old 07-25-2015
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All the vehicles tested back then had no emergency equipment save for the factory installed spotlight(s) They were all slicktops.
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post #19 of (permalink) Old 07-26-2015
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Will a power antenna from a 1996 Caprice work in a 1995 Impala SS?
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post #20 of (permalink) Old 07-27-2015
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Here ya go. Proof straight from GM. Read the text in the photo.

http://i.imgur.com/o0Pa18v.jpg


Quote:
Originally Posted by Dwayne J View Post
What was the weather and were they tested with light bars? The jurisdiction you worked in, what was the elevation?

Your info is incomplete.

Civi Caprice was 108 due to S rated tires
9C1 was something around 125 or 147 depending on tire option.
Impala was 154 with it's z-rated tires but most were wind limited to high 140s as the engine was BELOW peak HP rpm, 3.42s can actually increase the top speed but the driveshaft needs to be upgraded or risk a "critical speed" resonance failure.

I have owned the pcm programming software for 12-13 years and have seen the programmed limiters myself.

The info on all this was common knowledge a decade ago, but is harder to find today because so many newbs post the wrong info so many times the good info gets lost.
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post #21 of (permalink) Old 09-07-2015
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The impala sits lower, has bigger stock rims, and 25 more hp. Nice find btw! 9400 original miles is crazy! If I may ask, how much did you pay for her? She's a beauty.

'00 Town Car 131k black- dd
'96 Roadmaster 59k white
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post #22 of (permalink) Old 09-09-2015
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Originally Posted by Gallydif View Post
The impala sits lower, has bigger stock rims, and 25 more hp. Nice find btw! 9400 original miles is crazy! If I may ask, how much did you pay for her? She's a beauty.
25hp more, really, in my 15 or so years of playing with the 6th gen b-bodies you are the first I have seen make that claim, guess the rest of us were just too stupid to notice.

Dwayne
96 Caprice with AI 200cc package
Best et 11.5
Best MPH 116
Just another taxi
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post #23 of (permalink) Old 07-28-2019
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Hello boys. This is an old discussion so my reply might not even be seen. But I love my baby so I'm compelled to defend her. She's a 96 gray green beauty. I read 0 to 60 in 7 seconds. Baby I can hit that in 4. Can't take her for a ride without hittin at least 120 every time and she never lets me down. I'm a girl. First off whatever I drive has gotta be fast and have a kickbutt stereo. Second she's gotta look good and I notice details. Like the sharp lines that differentiate the 69 Camaro from 68 and 67. The rounded girls are prettier boys, just sayin. So astheticly the Impala stands above the granny car Caprice. She sits lower and has a beautiful profile. The rear spoiler gives her backside definition. Her grill says Don't even think about calling me a Caprice. And those big expensive tires make her look good from every angle. I do the turn-around-and-look at least once, sometimes twice, every time I park her. She gets looks everywhere we go and every boy stops to admire and ask about her Big Body. I've had offers for her. Absolutely refused to give her up in my divorce settlement. I miss my 69 Chevelle, my 79 Monte and my 86 IROC. But my 96 Impala is a fast, corner-hugging, smooth riding, attention gettin rarity and she's all mine.
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post #24 of (permalink) Old 07-28-2019
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Garage
Well welcome to the forum
We need pics please


People who drive slower than me are Assholes.
People who drive faster than me are Crazy.
http://www.crateenginedepot.com/350-...09-P10380.aspx

1983 Caprice Classic. 350 CID. 330 HP. 380 Ft.Lbs. Torque. Turbo 350 Trans. with Cooler.
Holly 0-83670 4 Barrel Carb. Headman Headers. Magnaflow Cats. Flowmaster Delta 50 Mufflers.
Electric Fan. Compu Star Alarm. Sony F-50 dash-cam with GPS Antenna. Crazy Canuck behind the Wheel.

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post #25 of (permalink) Old 07-30-2019
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0-60 in 4 seconds is doable, understand it will take some time and money.

First thing though would be make sure the 20+yo car is well maintained, fresh cap and rotor, plug wires, make sure fluids are all good, brakes are lubed where needed so not dragging.

Modifying these can be expensive since things like headers are usually hand made and costly, not sure if the exhaust makers still carry systems.

Getting the computer reprogrammed is getting harder as fewer tuners want to deal with it.

Dwayne
96 Caprice with AI 200cc package
Best et 11.5
Best MPH 116
Just another taxi
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