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nem427
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1 year ago
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nem427
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1 year ago
Watch this! #1 reason why speed limiters kill...
Michelin has put together this video for the trucking industry. This video is one bit of evidence of why speed limiters on trucks are dangerous. Th...
coming to a halt in a controlled fashion. Nothing to do with speed limiters at all. You don't actually accelerate, just momentarily apply more torque to counter the blowout. The video regarding fuel economy was equally specious; it has been definitively proven that driving at 50 mph is considera...
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Watch this! #1 reason why speed limiters kill...
Michelin has put together this video for the trucking industry. This video is one bit of evidence of why speed limiters on trucks are dangerous. Th...
I can understand your frustration at nanny state mandated speed limiters but misinterpreting science to pad out your argument isn't helpful to youir cause. The number of accidents caused by blow outs is minimal compred to the number of accidents caused by excessive speed or driver inattention. ...
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275 Supercharged cummins jake brake!
This very old peterbilt (I think it's a 49?) has a 275 supercharged cummins with 5" stacks and a small muffler underneath the truck. With no turbo ...
@earsneyes1
Or read my post. I said that a roots is not a compressor, it's a blower. The boost is built up in the manifold, not in the rotor housing. The benefit is that bypassing is easy; the downside is that the compression is very inefficient. You're quite correct to point out that twin char...
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@85raminator
Sadly, you can ALWAYS have too much of a good thing! Start cranking up the ponies and the cylinder pressures and temperatures soar and engine life plummets. Big trucks are for working hard all day, not an occasional blast down the quarter mile. I'm not aware of any heavy available ...
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Corvette ZR1 vs Audi R8 - Top Gear - BBC
Jeremy Clarkson heads out on to the Top Gear track for motoring's equivalent of the Ryder Cup as America's Corvette ZR1 takes on Europe's Audi R8 V...
@stallion4life31
And do you really suppose that clarkson thinks the person responsible for the Audi's malfunctioning trip computer will be shot? Top Gear isn't like a 'Road and Track' review of mid size sedans in which a po-faced presenter solemnly trots out all the data regarding cargo capaci...
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mack with a cummins shifting a 5&4
1957 mack with a 262 cummins b-75
@chevyapache1959
I wouldn't take it personally Chevyapache-some people need a computer to change gears for them, and pretend that it's a choice and not simply ineptitude. Probably the same people that phone highway patrol if their accelerator gets stuck open. Once the computer stops driving f...
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nem427
commented
1 year ago
Vw Golf 1.9TDI tuned 240hp&470Nm vs Porsche Turbo 700hp
romania drag race golf 4 turbodiesel vs porsche 997 turbo
@JL2579
Yes, but the salient point is that if you fix the RPM, then if you double the torque then you also double the horsepower. Diesels produce more torque and hence more horsepower at low speeds. My point is that the tractive effort at the wheels is independant of the path taken. The wheels ...
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nem427
commented
1 year ago
Vw Golf 1.9TDI tuned 240hp&470Nm vs Porsche Turbo 700hp
romania drag race golf 4 turbodiesel vs porsche 997 turbo
@agt155
I misread one of your statements. In fact you did state that torque at the wheels (ie tractive effort) was what detrermined acceleration. Apologies. I thought you were one ofthe muppets that will try to argue that engine output torque is relevant to acceleration, which of course is not.
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nem427
commented
1 year ago
Vw Golf 1.9TDI tuned 240hp&470Nm vs Porsche Turbo 700hp
romania drag race golf 4 turbodiesel vs porsche 997 turbo
@agt155
I'm not arguing with Sir Isaac. F=ma is applicable once you have subtracted frictional losses due to rolling resistance and air resistance. Work done = force*distance. Throw in time and you get: Power=force*velocity. The tractive effort at the drive wheels is far greater than the engin...
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nem427
commented
1 year ago
Vw Golf 1.9TDI tuned 240hp&470Nm vs Porsche Turbo 700hp
romania drag race golf 4 turbodiesel vs porsche 997 turbo
@agt155
Sorry but that's crap. The transmission takes care of lack of torque. Gearing multiplies torque, but it can't multiply power. In fact, given a suitable transmission, torque drops out of the equation. That said, low RPM torque is related to low RPM horsepower which is usually more import...
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About nem427's channel
RARE 1972 Chevrolet HEAVY CHEVY Chevelle 454 Big Block 5 Speed Richmond for sale
This is a very rare Chevelle, an original Heavy Chevy. Very few of these were made in comparison to the SS's and they are even harder to find toda...
5,667 views
nem427 said:
Nah. It hasn't got 24" shiny 'rims'. Think I'll give it a miss...
Nasty chevy 305 400hp
400hp 305 ported heads custom camshaft 850hp holley dp 9.5:1 compression, just spare parts i had laying around. file fit moly rings stock crank and...
61,668 views
nem427 said:
@nem427
because of the lack of performance orientated parts specfic to the 305. The bore stroke ratio of the 305 is basically the same as the sbc 383 and the bbc 454 and few people complain about those engines being boat anchors. The 305 is short of cubic inches, but with thought, it is possibl...
Nasty chevy 305 400hp
400hp 305 ported heads custom camshaft 850hp holley dp 9.5:1 compression, just spare parts i had laying around. file fit moly rings stock crank and...
61,668 views
nem427 said:
@Ph0enyx1978
As far as street use is concerned, far too much noise is made about big valves and big bores. In the 60s when airflow was poorly understood 'going large' on everything seemed to be the only way to make power. But the LS1 has a narrower bore than the old sbc 350 yet has no trouble ...
Twin Stick Pappy
11,312 views
nem427 said:
Quick Question: are you starting out in 3rd under or 1st under? If it's 1st, that truck must have a really tall rear end, if it's 3rd it does well to pull away from a dead stop! Beautiful changing by the way.
8,000RPM - Can You Read The Tach this Time?
Alright - everybody comment that a BBC will not rev to 8k. Please. And if you can, be rude about it too. Thanks!
It's not the original tach - it's...
37,373 views
nem427 said:
4.25" stroke @8000RPM? Very high piston speed, massive ring friction and stress on rods. It is possible, but it doesn't make a lot of sense. Any steet head/cam combination on a two valve engine stops flowing way before 8000 grand.
Driving the 1949 peterbilt down the road
We just pulled this thing after it sat for a good while and just drove it to a friends house. Dad was following me and our friend steve and he cloc...
68,964 views
nem427 said:
@Hotrodx199
Maybe become dentist-after all those teeth must be very 'clean' by now!
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