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i got a question what size number is my cadillac HT4100,ect. and how much horsepower does it bring=? ihave a 91 cadillac coupe deville, 4.9.
 

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2003 STS w/BoseNav, 1993 Deville, 1985 Deville
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Not sure what you're asking, but...

HT4100 = 4.1L. About 130 HP, I forgot the torque numbers

4.9 = 4.9L 200HP and 275 ft-lbs of torque.
 

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AB91'coupe said:
i got a question what size number is my cadillac HT4100,ect. and how much horsepower does it bring=? ihave a 91 cadillac coupe deville, 4.9.
Yeah... kind of confusing... Your car has a 4.9 liter V8 engine. Earlier model Cadillacs had 4100 which is 4.1 liter and much less power.
 

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93 SDV / 94 Z28 Conv. 355
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I used a G-tech and pulled 150 RWHP with a rider. Figure 200 flywheel, minus 20% drive train loss. equals 160. The car was stock at the time w/110K and orginal everything expect air/fuel filter, PVC and 16" CTS rims. I just changed the EGR value and solenoid, added a Flowmaster 80 series with quad tips. Ignition tune up is next. Not much, but the EGR and tune up, will hopefully bring me back to 155-160 stock area. I can't see the flowmaster giving anything but a better sound.
 

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'98 Buick Regal LS - '91 Caddy Seville - '87 Caddy Seville!
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medicz28 said:
I used a G-tech and pulled 150 RWHP with a rider. Figure 200 flywheel, minus 20% drive train loss. equals 160. The car was stock at the time w/110K and orginal everything expect air/fuel filter, PVC and 16" CTS rims. I just changed the EGR value and solenoid, added a Flowmaster 80 series with quad tips. Ignition tune up is next. Not much, but the EGR and tune up, will hopefully bring me back to 155-160 stock area. I can't see the flowmaster giving anything but a better sound.
Stock at the wheels has been measured to be about 164 without any mods by some people (Caddyinfo.com). When I finished my mods, I have seen 204 at the wheels...Not too damned bad at all...:lildevil:
 

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1992 Town Car Cartier & 2014 Accord LX MTX
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Somewhere I heard that the 4.9 pushes out 230 hp stock, but it was under rated for insurance purposes. Desktop Dyno 2000 said the 4.9 pushes 230hp and still 275 lb/ft stock.
 

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1987 D'Elegance 4.1L 1993 Eldo 4.9L 1993 STS 4.6L N* Z rated
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My 93 Eldo tops out at 115 and I know it can do much more. Does anyone know where I can get a chip for this car. I know I've seen them before, now that I wanna buy it I cant find it. ( Tires are rated at 168 MPH ) :D :lildevil:
 
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