I wanna see a 1000hp 4cy. that only makes 400 ft/lbs.

If its used effeciently, torque is the winner.

 

If the torque is in a wide band throughout the rpm yes, if it's 400lbft at 6700-6900rpm and before that 200lbft, it's crap.

Do the math:
HP = (Torque * rpm)/5252

Use that in excel and create dyno graphs. It's not a witchcraft or voodoo, just math.

 

Let's think about a human replacing the engine. With a long enough lever or a set of pedals with enough gear reduction I personaly can easily apply 3000lb-ft of torque to my final drive but that will not result in a fast car. Because I personaly can produce very little power I cannot make my car fast powering it with my own strength. For those who refuse to do the math and fully understand the way this works you have no choice but to use power as the indicator of which car is faster. Torque alone means nothing; however a car with high power (even if its engine has 10lb-ft) will be fast.

 

^ AMEN! Well said Andy.

 

I agree torque is not the only factor but it is a big part.
Hp is work over time. If it could make 10 ft/lbs and 1000hp wouldnt it take a lot longer to reach that 1000hp?

1/4 mile acceleration:
If 2 cars both make 1000hp. Same weight gear ratios, tire, everything.
1 made 600ft/lbs
1 made 400ft/lbs.
Both had a 1000rpm torque converter and 3 speed trans.

The 600ft/lbs motor would accelerate to the end the quickest.
If both had converters optimized for the combo they would run pretty close to each other.

 

So tbird, you're saying there's a difference between 1000HP and 1000HP? 1000 HP can do the same amount of work over time as 1000HP.

Of course if you jack up the converter and gearing you can slow a car down.

 

I guess what im getting at is the motor with the low torque wont be able to get its ass moving until the rpms are up.
The motor with the high torque would have already grunted its way out and been gone in much less time.

 

Car A:
1000Hp @ 6000rpm
1000lb-ft @ 4000rpm
3:1 gear ratio
3000rpm converter
all else the same

Car B:
1000Hp @ 12,000rpm
500lb-ft @ 8000rpm
6:1 gear ratio
6000rpm converter
all else the same

One car has half the torque of the other. You cannot look under the hood or open the rear end or anything like that. You can perform any type of functional test and make any types of measurements you want on the two cars such as dynoing and racing. Can you determine which one is which?

 

Well ya. The one thats revving to the moon.

Im not arguing about this.
This would be 2 setups optimized for acceleration.
My point is if they are NOT optimized the one that can makes more torque is gonna be quicker. Not necessarily faster.

 

IMO its all about balance and setup...

1hp is 1hp hp, so as wa already know the variables we are talking about are peak power rpm and torque...

using my take on the two "opposite" setups...

if you have an engine making 500 hp at 2000rpm your talking round 1300ftlb...
if you have an engine making 500 hp at 10000rpm your talking round 250ftlb...

both are going to be rubbish, the first will be a knightmare to launch in anything much heavier than a bike... the 2nd will be need a ridiculous number of gear changes to get to a resonable speed.

first thing ypu have to look at is the weight of your car andte amount of grip if its light a high hp setup might be faster, if its heavy it might be better to go high torque.

 

Low enough - ratio - gearing in the high torque car could make it the slower of the two.

Both of these points make NO sense.

 

I agree.

I think there is too many variables.

 

TurboPlymouth

Are you suggesting it matters? Regardless of what they weigh how would you tell?

 

12000 rpm motor would sound different than the 6000 rpm motor

 

It makes me wonder. Something tells me that at 4000# car a would be quicker to the 1/8th mile. Also, I wonder if half the tq, but twice the leverage equals the same as car "a" in the real world.

 

If your physics skills are lacking you will just have to take my word for it. 500lb-ft through a 6:1 gear set produces the same torque as 1000lb-ft through a 3:1 gear set.

 

No, I get it. But I'd really like to see those two examples side by side on a drag strip.

 

You are(were, sorry old thread) throwing out setups that dont work, didnt have DICK to do with the power(band). This is a supra that has around the same RPM of making good power as the ones you raced. NOW let me show you what THIS car will do. I sponsor/company car this car(AboveFab) and we will be GLAD to make the short trip to wherever you wish to run. We can do it at the track or we can roll out on the street, and you just hit it when you are ready. Make it worth while and we will be glad to about give you anything you need. Hell you are used to running supras with a few hundred hp less than this one, strait up so us giving you a few should be cake walk. Is 6 cars or so on the street enough? More? Need the hit as well? Your roll? What do you need to run one of our supras.
Shoot me a PM when you wanna lose your anal virginity

ps. we go bar hopping in this car. Simple setup. Single turbo, only sprayed on the street and full weight minus backseat(need us to put the seat back in and strap a car seat in it to get the run??) Link below

https://www.youtube.com/watch?NR=1&v=NPCWHHdOFjQ

 

Hahaha wow dude. I never even claimed I beat that supra. I lost, just not by much considering the 300hp gap. I am a full time college student with about zero budget for my car(I fabricated the turbo kit with a used diesel turbo, built the megasquirt, tuned it myself). I feel sure any supra you have poured $20k into will destroy me. I have less than $9k in my whole setup. A used mkiv supra is over $15k from what I've seen. I bought my car for 1500. So if you want to race for fun im game, but I can't compete with a freaking company sponsored car. Not only did I not say I beat a bunch of supras, I also said I wasn't saying every supra behaved that way. I have witnessed more than one that did though.

How about you company sponsor my car with the same budget in that supra and then we run? Not fair?

edit: Also, after watching the video, its obvious that car has well over double my power. So talk all the smack you want, money wins, and anyone with any sense knows that. Congratulations, your company sponsored race car can outrun a college kid's daily driver