Duramax Puttin the Hurt On Everybody
11-21-2011, 03:34 PM
#21
11 Second Club
Join Date: Aug 2005
Location: Tampa, FL
Posts: 804
Likes: 0
Received 0 Likes
on
0 Posts
I think what tsiawd was trying to get at is that he probably moved his peak torque higher up in the band thus making more hp. If truck A made peak tq at 2500 rpms and truck B made it at 3500 (both the same output just at a different rpm) then truck b would have made more hp.
But yeah, big diesels are funny to watch when they ourtun cars that they are not supposed to.
-Mark
But yeah, big diesels are funny to watch when they ourtun cars that they are not supposed to.
-Mark
11-21-2011, 04:22 PM
#23
TECH Apprentice
iTrader: (7)
Join Date: May 2005
Location: Upland, CA
Posts: 389
Likes: 0
Received 0 Likes
on
0 Posts
I think what tsiawd was trying to get at is that he probably moved his peak torque higher up in the band thus making more hp. If truck A made peak tq at 2500 rpms and truck B made it at 3500 (both the same output just at a different rpm) then truck b would have made more hp.
But yeah, big diesels are funny to watch when they ourtun cars that they are not supposed to.
-Mark
But yeah, big diesels are funny to watch when they ourtun cars that they are not supposed to.
-Mark
11-21-2011, 07:27 PM
#26
a guy i worked with was into diesel trucks and gave me **** all the time about his his buddy's cummins would decimate the ta. i blew him off repeatedly simply telling him to accept the fact that his buddy's truck, which had $20k in it, would hardly run with a stock ls1 (which, sadly, is still the bar, apparently...). come to find out, i had raced this truck earlier in the summer, spanking its *** repeatedly from slow rolls. after that he figured out what the trap speed portion of a timeslip means. 12.8 @ 101 < 13.24 @ 111 on the street hahaha.
11-21-2011, 07:59 PM
#27
I put a woopin on a diesel pickup today. The guy thought it was fast until I walked him like he was standing still lol. He got me off the line (torque) but he quickly ran out of horsepower to be able to keep up with me.
Last edited by RedHotG8; 11-21-2011 at 08:07 PM.
11-22-2011, 12:08 AM
#28
TECH Fanatic
Never underestimate the guy next to you.
Look at the diesel powered Le-mons cars, the diesel ocean powered race boats....they aren't powered by diesel for economy.
Last edited by ls1 1990 VN; 11-22-2011 at 12:23 AM.
11-22-2011, 07:18 AM
#29
nope.
horsepower is the definition of work produced over time. torque is the measure of twisting force. any work produced over time IS horsepower. Horsepower IS what moves a vehicle NOT torque. strictly by definition.
torque is and instant value. it is spread across an rpm band for a series of instant values. the work (HP) that moves a vehicle in (calories/hp/watts) is the measure you speak of.
horsepower is the definition of work produced over time. torque is the measure of twisting force. any work produced over time IS horsepower. Horsepower IS what moves a vehicle NOT torque. strictly by definition.
torque is and instant value. it is spread across an rpm band for a series of instant values. the work (HP) that moves a vehicle in (calories/hp/watts) is the measure you speak of.
Torque is the actual force applied that makes your car accelerate.
HP is a function of how much force is applied over a given distance and time:
"If a force is allowed to act through a distance, it is doing mechanical work. Similarly, if torque is allowed to act through a rotational distance, it is doing work. Power is the work per unit time. However, time and rotational distance are related by the angular speed where each revolution results in the circumference of the circle being travelled by the force that is generating the torque"
EDIT: Just remember, an object at rest stays at rest... unless acted upon by an outside 'force'.
Last edited by zz4camaro1980; 11-22-2011 at 07:55 AM.
11-22-2011, 09:13 AM
#30
One the diesel ricers thought it would be wise to race a buddy of mine's ported/pullied/bolt on Cobra from a ******* 50 roll because his transfer case was fucked up or something like that. He bet a couple hundred bucks on it.
He needs to stop huffing the diesel fumes I guess. You don't pick roll races with a manual trans car that traps 125mph when you're in a 7500+ lb POS with the aero of a bulldozer and might be lucky to get some mid13s.
He needs to stop huffing the diesel fumes I guess. You don't pick roll races with a manual trans car that traps 125mph when you're in a 7500+ lb POS with the aero of a bulldozer and might be lucky to get some mid13s.
11-22-2011, 10:31 AM
#31
Launching!
Thread Starter
Join Date: Jul 2011
Location: Horn Lake, MS
Posts: 286
Likes: 0
Received 0 Likes
on
0 Posts
Fact is yes a 6.0 gas burner pushing 35psi would probably rape a 35pso diesel burner but how much more does it cost to build a 6.0 to handle that kind of boost? A lot more. Buy a diesel truck for 12k and put 8k in it and run 12s in a 7500 pound brick or buy a gas burner truck for 10k and put 20k into building it to handle 35psi worth of boost so it can beat the diesel? Na. Diesel is where it is. That gas burner can be built to handle it yes, but it will never get 20+ mpgs, and 400,000 miles running like that. The diesel can. One of my buddies has a 98 cummins truck running low 13s with 380,xxx miles on it. No rebuild, and he's never touched the internals of the motor. You just can't do that with gasoline engines.
Amen
11-24-2011, 09:03 AM
#34
TECH Regular
Join Date: Jun 2008
Posts: 476
Likes: 0
Received 0 Likes
on
0 Posts
Fact is yes a 6.0 gas burner pushing 35psi would probably rape a 35pso diesel burner but how much more does it cost to build a 6.0 to handle that kind of boost? A lot more. Buy a diesel truck for 12k and put 8k in it and run 12s in a 7500 pound brick or buy a gas burner truck for 10k and put 20k into building it to handle 35psi worth of boost so it can beat the diesel? Na. Diesel is where it is. That gas burner can be built to handle it yes, but it will never get 20+ mpgs, and 400,000 miles running like that. The diesel can. One of my buddies has a 98 cummins truck running low 13s with 380,xxx miles on it. No rebuild, and he's never touched the internals of the motor. You just can't do that with gasoline engines.
In what way is that worth a damn?
Here's an idea, keep your trailer hauler... I don't know, hauling trailers... and race people in a car worth a damn.
And better yet, don't even buy a diesel unless you have to haul over 11,000 pounds.
Modern gasoline trucks are more than getting the job done.
A 2wd 3.5l ecoboost F150 can tow over 11,000lbs and gets 22mpg highway.
Diesel trucks are more efficient, but they are far more than most need and they are considerably more expensive than a 1/2 ton gasoline truck.
11-24-2011, 09:10 AM
#35
9 Second Club
iTrader: (10)
Join Date: Apr 2009
Location: Joliet,IL and Las Vegas 50/50
Posts: 1,230
Likes: 0
Received 3 Likes
on
3 Posts
^People don't buy diesel trucks to race people. It's usually on hauling/work duty for most and sure why not modify it a little to make it quicker. Besides, when a fbody beats a mustang it's expected, when a diesel truck beats an fbody or mustang it's humiliating and makes for so much more fun. I used to think that trucks wore worthless, but I've ran a couple and they can be stiff competition.
11-24-2011, 09:28 AM
#37
Teching In
Join Date: Dec 2010
Location: chi-town
Posts: 19
Likes: 0
Received 0 Likes
on
0 Posts
I think what he's getting at is that all that torque at low rpms and not spinning the engine to maintain that torque at high RPMS isn't going to make you fast. Plus the fact that diesels are really heavy. You also have to consider that it takes a Diesel truck like that about 1000 ft/lbs to do a low 11 ET.
mine puts down 1040ft/lbs at the ground and only runs high 12s. can't tell ya how much fun it is beating a car that the owner thinks is fast and you walk on him with 7500lbs
(or even give him a great race)RedHotG8, anytime you want to have a little fun, let me know. my truck isn't blazing fast, but it'll hold it's own against many vehicles. it's fun either way
and thanks for the backup Will. glad some people appreciate power no matter what form it's in
Last edited by 1TFROT; 11-24-2011 at 09:37 AM.
11-24-2011, 07:26 PM
#39
12 Second Club
iTrader: (3)
Join Date: May 2008
Location: VA
Posts: 229
Likes: 0
Received 0 Likes
on
0 Posts
If you want just one vehicle that meets a variety of uses, a diesel 4x4 doesn't get much better. I personally prefer to have a sports CAR for spirited driving. My diesel truck never sees full throttle.
