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Registered
1991 Deville
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97 Posts
Discussion Starter #1
I want to what my options are
Want to punch out the cylinders
Cam and in large the valves
 

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Registered
1991 STS, 1992 Fleetwood, 1987 Maxima wagon
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276 Posts
Find a tranny with the 3.33 or even the 2.97 final drive ratio. The 3.33 alone makes a world of difference.
 

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Master of the Dark Art of Diagnostics
2003 DHS - two-2002 DHS, 2003 SLS, 1995 Sedan DeVille, 1989 Coupe DeVille
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19,275 Posts
I want to what my options are
Want to punch out the cylinders
Cam and in large the valves
=====================
you got the wrong car if modding is your thing -

about the only way to add any "real" horsepower -
would be to add a nitrous kit -
and you MIGHT get two squirts out of it before blowing the engine or trans -
 

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Registered
1991 Deville
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97 Posts
Discussion Starter #5
Its curiosity this is my 2nd deville
The first one I made 5 speed cause I bought it with bad transmission
 

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2011 Crown Vic LX, 2009 Chevy Malibu 2LT
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5,607 Posts
yup - fiero forums. plenty of super/turbocharged engines and many manual swaps. remember - these engines have the same bellhousing pattern as the 60 degree v6's (2.8, 3.1,3.4) and many of those engines came with manual's behind them.
 

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Registered
1991 Cadillac Sedan deVille
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591 Posts
You can do custom things to it, however, how are you going to make the computer work correctly? The only way would be to have a PCM re-flash from a very knowledgeable tuner. I doubt someone will want to do that, though, except for a lot of money.
 

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1992 Fleetwood S&S Hearse, 1993 Buick Roadmaster
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567 Posts
Anything can be done, with enough time and enough money. But that doesn't mean it should be done. You can invest $30,000 in a Honda Civic and turn it into a drag car, but you could spend a lot less and buy a 2000 Camaro SS and have a car that's just as fast. I'm all for customizing cars - be it for looks, for performance, for off-road capability, what have you. And I respect the fact that you want to make the car smoke tires. The five-speed swap sounds like an incredible idea. But I don't think the money invested would ever give you the results you want as far as tuning the engine goes. I'd look for something with a 302, 318 or 350 in it, and go to town.
 

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2011 Crown Vic LX, 2009 Chevy Malibu 2LT
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5,607 Posts
You can do custom things to it, however, how are you going to make the computer work correctly? The only way would be to have a PCM re-flash from a very knowledgeable tuner. I doubt someone will want to do that, though, except for a lot of money.
Stand-alone systems have come a long way. Almost dummy-proof. Plug it in, feed it the basics, and it tunes itself. It's amazing, really.
 

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91 ETC, 91 STS, 98 Eldo Convertable, '93 Seville
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675 Posts
I remember seeing the craigslist and ebay listings for this when it was for sale a few months ago....a Citation with a 4.9L and 4-speed manual...
https://www.youtube.com/watch?v=l4p_Z0ajFUo
A guy had a driving 91 sts with a getrag from a fiero he was testing for a swap into a mint 91 etc. Than he disappeared off the forum.
These use a standard gm ecu chip burning is easy.
 
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