I was checking exhaust systems for a 5.7 hemi and I came up to this dyno test results...
It turned out that the 5.7 hemi ram did almost 195 hp...
as I continued searching I also found the results of a 5.3 silverado scoring almost 242 hp...
I am not sure how a 5.3 can achieve more hp then a 5.7 claiming that they're both stock...
2007-06-01 06:00:21 · 8 answers · asked by Anonymous in Cars & Transportation ➔ Other - Cars & Transportation
Trucks aren't meant for horsepower. They are designed for torque. Check out the torque ratings and you might see the difference.
My car is a 3.2 and it make more horsepower than both of those. It's all about how the engine is designed and what it's purpose is. Trucks purpose is torque for towing.
2007-06-01 06:05:40 · answer #1 · answered by Anonymous · 1⤊ 0⤋
Well, for one thing. The results on the Hemi horsepower are innaccurate. The Hemi produces around 375 Horsepower. As for smaller liter engines putting out more horsepower, it just depends on what else has been added to the engine--air intakes, super(turbo)chargers, and other things. For example, look at all the High HP Euro Civics, Integras and such. Most of those engines range from 1.8 L to 2.5 liters and put out so much horsepower due to turbo's and intakes. The Toyota Tundra is a 5.4 L and it produces more than 400 horsepower with roughly the same 0-60 times as a Mustang GT.
2007-06-01 13:10:48 · answer #2 · answered by berettabrett624 1 · 0⤊ 0⤋
First, I'd say your numbers for the 5.7 Hemi's off.
Second, it's easy to get more HP... forced induction, bigger exhaust, bigger intake, cold ram air, improved ECU, etc.
My Ford 2.5L Duratec V6 makes 170 hp stock. The SVT version makes 200/205 hp. Acura/Honda Integras have 2.0 I-4's that makes 160-180 hp stock depending on specific year. With aftermarket forced induction and other tuner parts it can easily push 300 hp or more.
So it's NOT just the displacement. It's the engine design and more.
2007-06-01 13:18:20 · answer #3 · answered by Kasey C 7 · 0⤊ 0⤋
Lots of factors involve the horsepower output of an engine. size is just one. Cam timing, compression ratio, injection system, ignition timing, size of valves, exhaust back pressure, accessories being driven, etc. Plus the dyno is measuring HP at the rear wheels which can be affected by the trans and torque converter.
So ye, a small engine can put out more HP than a bigger one. The Chevrolet is more efficient, therefore it puts out more power.
2007-06-01 13:28:10 · answer #4 · answered by yes_its_me 7 · 0⤊ 0⤋
there's several ways to make a motor produce more power. better air intake better fuel mixing better exhaust. the way the cam is set up. there is an old saying there is no excuse for cubic inches. witch is true. you can always basically produce more power from a bigger motor. but only if everything is tuned correctly. watch out believing factory hp specs to. there is allot of other variables in there to. like how much torque and at what rpm the motor makes that hp. also most of your spec these days are net hp. that's to the ground. so there testing at the wheels. in the good old days they would test at the engine. that's why it looks like older cars made so much more power. i hope this helps good luck
2007-06-01 13:11:58 · answer #5 · answered by doug h 5 · 0⤊ 0⤋
those numbers seem low for the engines that they are. i had a stock 5.7 chevy, it pushed 330 hp. they say that the 6.0 has 400. so i think your numbers are off somehow.
2007-06-01 13:07:25 · answer #6 · answered by richie 2 · 0⤊ 0⤋
all engine are built diffrently to fit car this mean that a when a big has a 5.3L, engine it has more horse power then the 5.7L.
2007-06-01 13:21:20 · answer #7 · answered by xGoldScorpionx 5 · 0⤊ 0⤋
it could just be what king of engine that it has and the brand
2007-06-01 13:04:13 · answer #8 · answered by Evan P 2 · 0⤊ 0⤋