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Drag Racing Where ALL Racers are Welcome- From ET Bracket, all the way to ProStreet and Top Diesel! |
10-14-2018, 12:24 PM
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#41
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Name: TheHammer
Title: broke
Status: Not Here
Join Date: May 2012
Location: juneau wi
Member`s Gallery
Posts: 738
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Quote:
Originally Posted by Crawler
My Snap On guy said my engines are RPM limited because I use a Torque wrench to assemble them and need to upgrade to one of those fancy Horsepower wrenches.
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10-14-2018, 02:11 PM
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#42
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Name: JQmile
Title: Comp Diesel Sponsor
Status: Not Here
Join Date: Nov 2006
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Posts: 6,976
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Listening to the whole "torque vs hp" argument feels like arguing between the difference between democrats and liberals sometimes....
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89 Dodge 972rwhp on the hose, still a VE!
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10-14-2018, 02:20 PM
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#43
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Name: T-MAN
Title: misunderstood
Status: Not Here
Join Date: Sep 2008
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Posts: 352
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Allan I think you tune or play with tuning on class 8 trucks.. when was the last time you adjusted horsepower curve in a file? Also your truck probably has 480hp at lets say 1900 +- rpm and peak torque at about 1500rpm when you hit a big hill or a long steep grade notice where the tach settles in ? I bet around 1500 where peak torque is... you may get a run at the hill with the horsepower but when it settles in its the torque doing the work.
__________________
2001.5 ppump allison 11.399@ 117.90 6850#
1997 rcsb 12v 6.7 9.38 @ 146.54
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10-14-2018, 09:50 PM
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#44
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Name: allan5oh
Title: Too Much Time
Status: Not Here
Join Date: Oct 2012
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Posts: 1,106
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Quote:
Originally Posted by T-MAN
Allan I think you tune or play with tuning on class 8 trucks.. when was the last time you adjusted horsepower curve in a file? Also your truck probably has 480hp at lets say 1900 +- rpm and peak torque at about 1500rpm when you hit a big hill or a long steep grade notice where the tach settles in ? I bet around 1500 where peak torque is... you may get a run at the hill with the horsepower but when it settles in its the torque doing the work.
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Yes 1500 is where peak torque is. Yet if I can't pull a hill at say 60 mph at 1500, I split a gear to 1700 and suddenly I'm pulling it at 60 mph? Engine torque is lower, HP is higher, and I'm making more torque to the wheels.
Also the torque wrench analogy makes me . How much torque can you make on one personally? So what if you were in the engine bay of a car with your torque wrench, would the car go anywhere? It would barely move. You can make a decent amount of torque but it's at such a low RPM it is quite useless for doing any actual work. The human body can produce a lot of torque, but maybe 1/5 a HP.
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10-15-2018, 09:23 AM
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#45
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Name: biggy238
Title: Too Much Time
Status: Not Here
Join Date: Aug 2008
Location: Just North of Wrong
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Posts: 10,862
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I guess you people don't ride bicycles in Texas, or have vehicles that kick down a gear when the pedal is mashed?
Sent from my XT1575 using Tapatalk
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'10 Silver F250 CCLB 4X4 6.4L cummins Swapped
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10-15-2018, 10:37 AM
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#46
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Name: SPEEDSHIFT
Title: Too Much Time
Status: Not Here
Join Date: Jan 2007
Location: San Antonio, TX
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Posts: 5,978
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Quote:
Originally Posted by biggy238
I guess you people don't ride bicycles in Texas, or have vehicles that kick down a gear when the pedal is mashed?
Sent from my XT1575 using Tapatalk
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If something I drive needs to downshift at speed, it just needs more power. LMAO
But seriously, WTF happened to my thread about big single turbochargers?
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2003 2500 4x4 auto FOR SALE
2005 2500 4x4 auto Drag Truck
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Tenacity Tuning, Longs Machine Shop, BD Diesel Performance
Last edited by SPEEDSHIFT; 10-15-2018 at 10:43 AM.
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10-15-2018, 12:33 PM
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#47
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Name: Crawler
Title: Press the BIG RED button.
Status: Not Here
Join Date: Apr 2006
Location: NE Texas
Member`s Gallery
Posts: 837
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Quote:
Originally Posted by SPEEDSHIFT
But seriously, WTF happened to my thread about big single turbochargers?
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Umm..... CompD happened.
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10-15-2018, 12:59 PM
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#48
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Name: CorneliusRox
Title: Seasoned Rookie
Status: Not Here
Join Date: Dec 2012
Location: Detroit, MI
Member`s Gallery
Posts: 4,154
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Quote:
Originally Posted by blackmega3500
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I think Saab did it better. Seems like a more robust design.
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Corey - BSME '21 Tesla Model 3 Perf
'22 DMax AT4 2500
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10-15-2018, 02:28 PM
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#49
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Name: biggy238
Title: Too Much Time
Status: Not Here
Join Date: Aug 2008
Location: Just North of Wrong
Member`s Gallery
Posts: 10,862
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Quote:
Originally Posted by blackmega3500
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No.
Sent from my XT1575 using Tapatalk
__________________
Check out @bdmaximusworx
05.5 Campanella White TDi Jetta 5spd 45.5MPG
-Little Sexy
'10 Silver F250 CCLB 4X4 6.4L cummins Swapped
Insta @trash.panda250
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10-15-2018, 02:38 PM
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#50
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Name: T-MAN
Title: misunderstood
Status: Not Here
Join Date: Sep 2008
Member`s Gallery
Posts: 352
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Quote:
Originally Posted by allan5oh
Yes 1500 is where peak torque is. Yet if I can't pull a hill at say 60 mph at 1500, I split a gear to 1700 and suddenly I'm pulling it at 60 mph? Engine torque is lower, HP is higher, and I'm making more torque to the wheels.
Also the torque wrench analogy makes me . How much torque can you make on one personally? So what if you were in the engine bay of a car with your torque wrench, would the car go anywhere? It would barely move. You can make a decent amount of torque but it's at such a low RPM it is quite useless for doing any actual work. The human body can produce a lot of torque, but maybe 1/5 a HP.
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See this makes sense now, I had to gear down and use torque multiplication through my transmission for my horsepower to carry the hill due to the lack of torque in the higher rpm.... just like my horsepower converter in my automatic..... sorry speedshift for the derail...…..
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2001.5 ppump allison 11.399@ 117.90 6850#
1997 rcsb 12v 6.7 9.38 @ 146.54
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10-15-2018, 07:58 PM
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#51
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Name: biggy238
Title: Too Much Time
Status: Not Here
Join Date: Aug 2008
Location: Just North of Wrong
Member`s Gallery
Posts: 10,862
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So. You claim to grasp biomechanics, but failed high-school physics.
Sent from my XT1575 using Tapatalk
__________________
Check out @bdmaximusworx
05.5 Campanella White TDi Jetta 5spd 45.5MPG
-Little Sexy
'10 Silver F250 CCLB 4X4 6.4L cummins Swapped
Insta @trash.panda250
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10-15-2018, 11:53 PM
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#52
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Name: allan5oh
Title: Too Much Time
Status: Not Here
Join Date: Oct 2012
Member`s Gallery
Posts: 1,106
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Quote:
Originally Posted by T-MAN
See this makes sense now, I had to gear down and use torque multiplication through my transmission for my horsepower to carry the hill due to the lack of torque in the higher rpm.... just like my horsepower converter in my automatic..... sorry speedshift for the derail...…..
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Almost as if there's a number out there available to us that does the math for us.
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All of your BSFCs are belong to me
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10-16-2018, 05:53 AM
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#53
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Name: T-MAN
Title: misunderstood
Status: Not Here
Join Date: Sep 2008
Member`s Gallery
Posts: 352
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Is the magic number 7121 ?
Another question, whats more important VOLTS or AMPS flmao…………..
__________________
2001.5 ppump allison 11.399@ 117.90 6850#
1997 rcsb 12v 6.7 9.38 @ 146.54
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10-16-2018, 06:18 AM
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#54
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Name: zachu812
Title: Too Much Time
Status: Not Here
Join Date: Apr 2016
Member`s Gallery
Posts: 419
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I feel dumber after reading these last few pages, this is starting to look like one of those diesel fb groups full of mouth breathers arguing.
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1995 RCLB 4x4: H-pump, 5x.012s, HX35
2001 RCLB 4x4: H-pump, 6x.013s, S472/S488
EdzGarage, Matt's Diesel Supply, HTS Transmissions
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10-16-2018, 09:30 AM
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#55
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Name: biggy238
Title: Too Much Time
Status: Not Here
Join Date: Aug 2008
Location: Just North of Wrong
Member`s Gallery
Posts: 10,862
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Quote:
Originally Posted by blackmega3500
Oh good Lord!
Your argument is void.
You've already been outlined why, take it or leave it.... Doesn't change the outcome of you being incorrect.
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What exactly have you morphed my argument into? Realistically, I didn't offer an argument, there was nothing of substance offered on your part.
You outlined some tangent about variable displacement engines for whatever reason. It only exemplifies the fact that you didn't comprehend my analogy.
That's all I will be taking from your responses.
Sent from my XT1575 using Tapatalk
__________________
Check out @bdmaximusworx
05.5 Campanella White TDi Jetta 5spd 45.5MPG
-Little Sexy
'10 Silver F250 CCLB 4X4 6.4L cummins Swapped
Insta @trash.panda250
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10-16-2018, 09:40 AM
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#56
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Name: allan5oh
Title: Too Much Time
Status: Not Here
Join Date: Oct 2012
Member`s Gallery
Posts: 1,106
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Another analogy:
"Government doesn't matter, congress is all that matters!"
Replace government with HP and congress with torque.
Now do you see how silly the argument is?
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All of your BSFCs are belong to me
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10-16-2018, 02:06 PM
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#57
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Name: allan5oh
Title: Too Much Time
Status: Not Here
Join Date: Oct 2012
Member`s Gallery
Posts: 1,106
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Quote:
Originally Posted by blackmega3500
Do you understand why lawnmowers are only given a HP rating?
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Yet again deflecting to a completely usless tangent.
I accept your surrender.
__________________
All of your BSFCs are belong to me
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10-16-2018, 03:03 PM
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#58
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Name: CorneliusRox
Title: Seasoned Rookie
Status: Not Here
Join Date: Dec 2012
Location: Detroit, MI
Member`s Gallery
Posts: 4,154
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Quote:
Originally Posted by blackmega3500
Interesting. It's definitely a much simpler approach, but the tilt of the head angle to adjust TDC is just wacky when you look at the graphic. To imagine that in a car would be just unnerving for some reason to me.
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It doesn't move during every rotation or anything, it moves with RPM to change compression ratio. It's a turbo charged engine. Very high compression at low RPM gets a turbo spooled and gives the car a lot of pep, then lowers compression at higher RPM so you can handle more boost and timing.
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Corey - BSME '21 Tesla Model 3 Perf
'22 DMax AT4 2500
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10-16-2018, 03:42 PM
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#59
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Name: allan5oh
Title: Too Much Time
Status: Not Here
Join Date: Oct 2012
Member`s Gallery
Posts: 1,106
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Quote:
Originally Posted by blackmega3500
Not a deflection truffle butter boy.....
Answer the phucking question, or can you?
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I refuse to answer a question that have nothing to do with your lack of understanding of the difference between torque and hp.
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All of your BSFCs are belong to me
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10-16-2018, 03:52 PM
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#60
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Name: Hurley
Title: BLAKLUNG
Status: Not Here
Join Date: Apr 2008
Location: Statesville, NC
Member`s Gallery
Posts: 3,698
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"Horsepower is a function of torque and rpm. Both are equally important. Double either and HP doubles. Double both and HP quadruples."
There's nothing to argue about it, the above statement rings true. 1 HP = 33,000 FT-LB/Min, 746 watts, etc....
What everyone gets bent out of shape over is the fact that engines produce varying torque values at different RPM levels.
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THIS
IS
COMPD.
95 2500 RCSB 2wd back-halfed and 4-linked
5x14/7mm +100cc/4k/11-blade billet 63/68/.91 T4
539/989
03 RCLB 4x4, SSR
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