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Old 10-05-2018, 07:23 AM   #21
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Quote:
Originally Posted by blackmega3500 View Post
Is it safe to say that's when diesel racing was "affordable"?

Maybe not "afforable" but definitely more aforadable-er


Quote:
Originally Posted by jasonc View Post
With a junk ass 160hp pump

Don't hate on a 160. They are flat evil in the right hands.
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Old 10-05-2018, 12:07 PM   #22
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What do diesels do on the brake for spooling? Lots of fuel and retard timing? Or do you oscillate the timing?

On gas applications I use as much timing as possible to hit the 2 step on the transbrake as fast as possible, then slowly pull timing as boost comes on. It's a bit different though we pull spark but not fuel on the limiter. It lights in the exhaust manifold.
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Old 10-06-2018, 11:48 PM   #23
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Yes, seems like even diesel guys are finally starting to understand how turbochargers work.
 
Old 10-07-2018, 04:27 PM   #24
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Quote:
Originally Posted by allan5oh View Post
What do diesels do on the brake for spooling? Lots of fuel and retard timing? Or do you oscillate the timing?

On gas applications I use as much timing as possible to hit the 2 step on the transbrake as fast as possible, then slowly pull timing as boost comes on. It's a bit different though we pull spark but not fuel on the limiter. It lights in the exhaust manifold.
^^^ that has to be the First time I've seen crybaby allen5oh in a thread that wasn't political, spewing his Snowflake, safe space, hot coco and coloring book nonsense.
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Old 10-12-2018, 09:49 PM   #25
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Quote:
Originally Posted by blackmega3500 View Post
Good thing diesel guys have taught gassers so much about efficiency, injection, compression, timing, and that it doesn't require 5k rpm plus to spool a large turbo that sticks above the hoodline 2 feet.

I mean after all, even the most advanced gas motors are still behind the curve compared to most diesels.
Rpm makes power, diesels cant make high rpm so they dont make power. Gassers are running 100 psi boost single stage these days, at 10000+ rpm. Formula 1 engines did 80 psi already in the 80s.
 
Old 10-12-2018, 10:30 PM   #26
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Rpm makes power, diesels cant make high rpm so they dont make power. Gassers are running 100 psi boost single stage these days, at 10000+ rpm. Formula 1 engines did 80 psi already in the 80s.
Actually TQ makes power, HP is just a calculation. But who's counting?
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Old 10-13-2018, 01:26 AM   #27
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Actually TQ makes power, HP is just a calculation. But who's counting?

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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Old 10-13-2018, 02:23 AM   #28
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Actually TQ makes power, HP is just a calculation. But who's counting?
You need horsepower to move your vehicle.
 
Old 10-13-2018, 06:30 AM   #29
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You need horsepower to move your vehicle.
I thought torque was the force to move an object?

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Old 10-13-2018, 11:54 AM   #30
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I like the saying, horsepower is how fast you can hit the wall, but torque is how far you move the wall after you hit it..
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Old 10-13-2018, 01:24 PM   #31
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With that line of thinking maybe it's a good thing you're not running 9's and below lol.
He literally means pushing in walls, but not with his truck.
 
Old 10-13-2018, 01:32 PM   #32
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How about.... horsepower is the ability to do work, but torque is how much work you can actually do....Or BIG TORQUE MATTERS.....
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Old 10-13-2018, 01:37 PM   #33
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You need horsepower to move your vehicle.
NOPE! I need tires and wheels to move my vehicle! Right now it's missing both and it's stuck on jack stands
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Old 10-13-2018, 02:07 PM   #34
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Quote:
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How about.... horsepower is the ability to do work, but torque is how much work you can actually do....Or BIG TORQUE MATTERS.....
A skinny hot chick doesn't cook and costs you money, a big girl does it all an the laundry?
 
Old 10-13-2018, 05:20 PM   #35
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A skinny hot chick doesn't cook and costs you money, a big girl does it all an the laundry?
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Old 10-13-2018, 08:28 PM   #36
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How about.... horsepower is the ability to do work, but torque is how much work you can actually do....Or BIG TORQUE MATTERS.....
That and "horsepower sells cars, torque wins races" make me laugh. Whenever it's uttered I immediately know that I'm dealing with someone that has no clue what they're talking about.

Ever wonder why the ET calculators use HP and not TORQUE?
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Old 10-13-2018, 08:30 PM   #37
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Quote:
Originally Posted by blackmega3500 View Post
To think tractors, trains, semis, and actual working livestock have had it wrong all these centuries.

Horsepower is the rate of acceleration for an object.

Torque is the ability to move and sustain said motion of an object.

Therefore horsepower is a byproduct of torque.
Not exactly.

Horsepower is a function of torque and rpm. Both are equally important. Double either and HP doubles. Double both and HP quadruples.

Shift points match the horsepower curve, not the torque curve, ever wonder why?
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Old 10-13-2018, 10:11 PM   #38
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That's the most idiotic explanation I've read in a while.
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Old 10-14-2018, 10:08 AM   #39
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Not exactly.

Horsepower is a function of torque and rpm. Both are equally important. Double either and HP doubles. Double both and HP quadruples.

Shift points match the horsepower curve, not the torque curve, ever wonder why?
And the HP curve is calculated from the TQ curve. Can't just spin it to 10k and expect to make awesome HP, the engine needs to produce some tq up there (obviously less than you need at 5k like you are getting at). Being that HP is a function of said tq, the shift points will match BOTH
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Last edited by JWhite; 10-14-2018 at 10:10 AM.
 
Old 10-14-2018, 10:28 AM   #40
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Were the bsfcs too high?
I accept your surrender

Quote:
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And the HP curve is calculated from the TQ curve. Can't just spin it to 10k and expect to make awesome HP, the engine needs to produce some tq up there (obviously less than you need at 5k like you are getting at). Being that HP is a function of said tq, the shift points will match BOTH
You're getting there, but not quite...
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