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  #16  
Old 03-25-2003, 01:37 PM
GSR GSR is offline
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you do agree that torque directly proportional to displacement...bigger displacement=more tq, correct?

what about hp; how would you define horsepower

the reason honda squeezed high hp #'s (240 not 260) from that little 2.0l engine is because they have found a way to keep that torque up all the way through redline. I cant remember the exact redline at this time but for conversation's sake we'll say 9000rpm.

lets say it makes peak torque, ill take a stab and say 150lb/ft at 4000rpm. that only equals out to 114.24hp. not too impressive, but if it keeps it up to about 140 all the way to redline, that hp # goes up to 239.91.

do you see now how hp can be raised through a better designed, better breathing, higher revving engine while torque is solely dependant on displcement?

btw i posted this in another topic but in case you didnt get a chance to read it: tq*rpm/5252=hp. this is aways true. makes sense how hp and tq always cross at 5252rpm on a dyno plot, huh?
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Old 03-25-2003, 03:16 PM
pontiactrac pontiactrac is offline
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Quote:
Originally posted by KrNxRaCer00


well...compare a 3.8L to a 1.8L. of course the honda's lil 1.8 isn't going to put down much torque. instead, they rev forever, an rely on a long stroke an VTEC to make any power. i mean...u ride in a DOHC VTEC car, its dead until u hit that engagement point...

i'm not against a bigger displacement at all, i truly believe that honda's are gettin a lil played out an its annoying having the torque of a geo metro (exaggeration). i still got mad love for the high rev'n motors, an the sweet styling, but...after this teg, i'll go euro all the way or get a lil subby wrx...

as for the RSX-S, they are NOT slow. run one of them on the freeway. they have an AWESOME mid-range, an they pull up top like crazy. we've got one at the races i goto, an i can BARELY beat him, but i can walk on the Type R (yea...he's a bad driver). really w/ all the cars around high 14's-low 15's, it really all comes down to driver. but on the freeway guys...u wouldn't be callin the rsx slow at all...from 40, it'll stomp me by 1 1/2-2 cars...easy.
Who in gods name said the RSX type S was slow, were they smoking crack?
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Old 03-25-2003, 03:18 PM
pontiactrac pontiactrac is offline
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Quote:
Originally posted by GSR
you do agree that torque directly proportional to displacement...bigger displacement=more tq, correct?

what about hp; how would you define horsepower

the reason honda squeezed high hp #'s (240 not 260) from that little 2.0l engine is because they have found a way to keep that torque up all the way through redline. I cant remember the exact redline at this time but for conversation's sake we'll say 9000rpm.

lets say it makes peak torque, ill take a stab and say 150lb/ft at 4000rpm. that only equals out to 114.24hp. not too impressive, but if it keeps it up to about 140 all the way to redline, that hp # goes up to 239.91.

do you see now how hp can be raised through a better designed, better breathing, higher revving engine while torque is solely dependant on displcement?

btw i posted this in another topic but in case you didnt get a chance to read it: tq*rpm/5252=hp. this is aways true. makes sense how hp and tq always cross at 5252rpm on a dyno plot, huh?
there are cars with lesser engines than me that have both higher torque numbers and hp, although you don't see alot of them as hondas, some nissans like the maxima and altima though.
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Old 03-25-2003, 04:01 PM
Paonessa Paonessa is offline
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the new v6 accord makes 57 more hp than my car out of the same displacement.

and no one said the rsx was slow. i just said i beat one and was relatively unimpressed at how it kept up
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Old 03-25-2003, 04:07 PM
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Quote:
Originally posted by Paonessa
the new v6 accord makes 57 more hp than my car out of the same displacement.

and no one said the rsx was slow. i just said i beat one and was relatively unimpressed at how it kept up
exactly, and u didn't say it was slow. The new accord, now aside from it's horspower, that is relatively unimpressive. only runs around the 15.6-15.7 range, i would expect more from 240 in ponies.
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Old 03-25-2003, 04:36 PM
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Originally posted by pontiactrac


exactly, and u didn't say it was slow. The new accord, now aside from it's horspower, that is relatively unimpressive. only runs around the 15.6-15.7 range, i would expect more from 240 in ponies.
yeah that's where the lack of torque with the heavier body bites ya in the ass. at only 212 lbs of torque and an extra 250 lbs body weight, that extra hp doesn't help much
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Old 03-25-2003, 04:55 PM
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Quote:
Originally posted by Paonessa

yeah that's where the lack of torque with the heavier body bites ya in the ass. at only 212 lbs of torque and an extra 250 lbs body weight, that extra hp doesn't help much
Yep, and compare that to the new Altima which is almost the same hp but with definatly faster runs. Torque is an important component, that many people often overlook. Although light bodied cars like the RSX need less torque to pull itself, the best combination is light+horsepower+torque. That is the ideal car. I would almost even add economy to that list although it has nothing to do with performance, but im kinda cheap when it comes to gas.
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  #23  
Old 03-25-2003, 05:47 PM
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I.M.O the rsx is uglier, heavier, slower, and more expensive than an integra gsr/type R, I don't see how they made it better. They have the same power as a integra type R but they are alos about 170lbs heavier which is alot. The rsx enigne is supposedly better than a b18c, and from what I've been seeing, it IS, but I still rather have an interga than an rsx. If I had the money to buy an rsx, I'd get the neon srt-4 instead, or maybe a use wrx, but not a mid 15 rsx
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Old 03-25-2003, 06:11 PM
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Quote:
Originally posted by pontiactrac


exactly, and u didn't say it was slow. The new accord, now aside from it's horspower, that is relatively unimpressive. only runs around the 15.6-15.7 range, i would expect more from 240 in ponies.
Wow... and a minute there you guys were saying that the 350Z and G35 was pretty fast. With all those numbers from the engines outpt, it still can't beat the NSX's lower powerd engine in the 1/4 mile.

Do you guys always relate power with straigt line performance?

The Integra's and the RSX are not straight line performance cars. No matter how much people here argues with you fella's, lets face it, Honda didn't design it for drag racing.

Rather Honda designed it for track racing. And the point that someone made earlier about Honda having a pretty flat torque curve plays a very important role. Althouhg it doesn't have the huge torque numbers, its torque curve is not overly (should I say) messed up.

Take a good look at this graph here:

Taken from SCC article


The thin green line is the B18C's (Integra VTEC engine) trque curve. As you can see, exceot for some spots on the graph, its pretty flat when compared to the Mustangs (thin red line BTW).

From around 3250rpm-5500rpm is the Mustangs strong points. And even there its wobbly up and down like its surging wth power.

If you look at the light green graph, besides the VTEC x-over point at 5000rpm, the torque curve is pretty linear. Meaning its slowly climbing at a rate and its not obnoxious like the Mustangs that goes all over the place.

Also notice that once you shift gears, the power of the B18C will not fall below the 500rpm point because the car will stay in VTEC if you shift at the redline. So as yo ucan see, the thin gren line is pretty consistant. Unlike the Mustangs thin red line that suddenly drops drastically after about 5500rpm.

With that said, the B18C engine is consistant and thats how it was built. Althogh it doesn't have lots of torque, its has very good usuable torque for the engine.

As for the RSX-S, its a whole lot more powerful than the previous Integra Type-R which also packs a whole lot of new technoligy too.
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Old 03-25-2003, 07:44 PM
Paonessa Paonessa is offline
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regardless, it'll get beaten by a car with higher torque and at a comparable weight, straight line or at a track. if you are racing striaght line, it'll fall too far behind by the time it reaches optimal power . and on a race track you're not going to be shifting at redline and maintaining peak power while coming in and out of turns. in a 1700 lb lotus elise body the overall lack of torque is more than compensated for. but the type r weighs an extra half ton
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Old 03-25-2003, 09:11 PM
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Well if you read the article on those two cars, the Mustang gets beat really bad in both the drag racing and track racing. Of course the Lotus is soo light that the power is not important, but can you explain to me why the Realtime Integra Type R's are beating BMW and all the rest of the makes that they race with?

Plus you still haven't ecplain to me why the 350Z is still not camparable to the NSX in the speed department when it has the larger displacement engine as well as the better power figures.

A H2 Hummer has gobbs of power and torque, dos it go fast? Its all about how the motor was built to fo fast, not just the figures it puts out. hence my explaination of the usable power from the B18C engine compared to most other production engines.
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Old 03-25-2003, 10:33 PM
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gotta put gear ratios in as a factor also. flatter torque curves help...hp/weight ratio...those are jus a few...
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Old 03-26-2003, 11:55 AM
GSR GSR is offline
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Quote:
Originally posted by pontiactrac


there are cars with lesser engines than me that have both higher torque numbers and hp, although you don't see alot of them as hondas, some nissans like the maxima and altima though.
examples...
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Old 03-26-2003, 12:03 PM
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Quote:
Originally posted by Paonessa
the new v6 accord makes 57 more hp than my car out of the same displacement.

and no one said the rsx was slow. i just said i beat one and was relatively unimpressed at how it kept up
did you not understand my previous post?
most likely the car with bigger displacement will have a higher peak torque, but not necssarily horsepower. the engine that can keep the torque up longer (rpm) will have a higher peak hp. horsepower is number derived drectly from torque+rpm. if you change torque you will change horsepowe automatically. vtec/vvti/ztec all help in making more torque at higher rpms which turns out in higher hp.
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Old 03-26-2003, 12:27 PM
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srt-4, still a neon
wrx, way over-rated
lancer evo, :smoka: i wonder if theyll keep 300tq/300hp here in the states

yes power is related to straight line performance, your sentence should have read "do you guys always relate performance to straight line speed? in that case, no

the itr is a track car. lap times are up there with vipers and many other +50K sports cars. power means little on a road course. handling is what really matters and the type r handles like a dream. it WILL beat most american made production muscle cars (camaros, mustangs, trans ams, vettes, etc.)

"regardless, it'll get beaten by a car with higher torque and at a comparable weight, straight line or at a track. if you are racing striaght line, it'll fall too far behind by the time it reaches optimal power . and on a race track you're not going to be shifting at redline and maintaining peak power while coming in and out of turns. in a 1700 lb lotus elise body the overall lack of torque is more than compensated for. but the type r weighs an extra half ton"
i can see you've never been to an auto-x event. btw a ton i close to 1000lbs..an itr doesnt weigh 2700lbs

an h2 has lots of low end torque but it falls off very quick (low redline/low hp). it ill pull a tree off the ground but not exactly what you need in a race
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