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Zoom

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Zoom last won the day on July 29 2014

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About Zoom

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    TO-220 Transistor
  • Birthday 05/15/1970

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    Male
  • Location
    Michigan
  • RealName
    Brett
  • Occupation
    All things automotive

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  1. Yeh I finally found a guy who is excellent. In and out quick. Almost zero pain. A good dentist is one you put on your Christmas card list. Thanks again guys, Dom, Rich, Brian, Mike, King, all you guys. And Charlie for the thread!! 🙏
  2. Hey you guys. Thanks a lot! I appreciate it. I had some dental work done so I’ve been out a day or two. Yep. Treated my self to some torture on my birthday. I didn’t see this on the fp until just now. 🤙
  3. Absolutely. Incredible. That looks fantastic. Wow. The generosity from fellow Carversite members once again shows no bounds. Beautiful work Rockster..... Submit this to Featured Systems. The elegance and simplicity deserves it a spot there.
  4. Indeed. Current Top Fuel ‘Hemi’ blocks share cylinder ‘bore center-to-center’ measurement, and ‘deck height’ (bottom of block to top of deck-minus head-) with the Gen II Chrysler block. Valvetrain actuation is almost identical. Although proprietary machining, those two primary block measurements give tribute to how good the original design was.
  5. Crap, Rich. I got rid of a v-rated Goodyear on my Shelby Charger for a BFG Comp TA ZR. It’s now been sitting in my garage stationary for about 6-7 years. Ya think you had flat spots? I was praying it wouldn’t be the case. We’ll see this spring. If this frickin snow ever stops.
  6. Yep. The rest of that post had ‘ If a blown Vette crossed the starting line at 200 mph at the same time a TF car hit the throttle, The fueler would easily pass it by the 1/4 mile mark (top end finish line). Today’s TF machines are estimated to be producing 11,000 horsepower. Estimated because no dyno on earth could handle it. Don Schumacher racing machines their own block from a 780 lb block of billett aluminum. Down to 140 lb engine block. Those pictures you see launching all blurry? Ive been to many NHRA races. During a full Top Fuel launch the overpressure in the air causes the liquid in your eyeballs to vibrate so violently that is hard to focus on the car until it is well past you. I remember watching the Chi Town Hustler back in the late ‘80s. With an iron block Hemi that car produced almost 3000 horspower and ran 265 in the quarter.
  7. A few specs. Some real cool facts about top fuel dragsters I stumbled across..... --------- * One dragster's 500-inch Hemi makes more horsepower then the first 8 rows at Daytona. * Under full throttle, a dragster engine consumes 1 1/2 gallons of nitro per second, the same rate of fuel consumption as a fully loaded 747 but with 4 times the energy volume. * The supercharger takes more power to drive than a stock hemi makes. * Even with nearly 3000 CFM of air being rammed in by the supercharger on overdrive, the fuel mixture is compressed into nearly-solid form before ignition. Cylinders run on the verge of hydraulic lock. * Dual magnetos apply 44 amps to each spark plug. This is the output of an arc welder in each cylinder. * At stoichiometric (exact) 1.7:1 air/fuel mixture (for nitro), the flame front of nitromethane measures 7050 degrees F. * Nitromethane burns yellow. The spectacular white flame seen above the stacks at night is raw burning hydrogen, dissociated from atmospheric water vapor by the searing exhaust gases. * Spark plug electrodes are totally consumed during a pass. After 1/2 way, the engine is dieseling from compression-plus the glow of exhaust valves at 1400 degrees F. The engine can only be shut down by cutting off its fuel flow. * If spark momentarily fails early in the run, unburned nitro builds up in those cylinders and then explodes with a force that can blow cylinder heads off the block in pieces or blow the block in half. * Dragsters twist the crank (torsionally) so far (20 degrees in the big end of the track) that sometimes cam lobes are ground offset from front to rear to re-phase the valve timing somewhere closer to synchronization with the pistons. * To exceed 300mph in 4.5 seconds dragsters must accelerate at an average of over 4G's. But in reaching 200 mph well before 1/2 track, launch acceleration is closer to 8G's. * If all the equipment is paid off, the crew worked for free, and for once NOTHING BLOWS UP, each run costs $1000.00 per second. * Dragsters reach over 300 miles per hour before you have read this sentence. Did you know … … that the nitromethane-powered engines of NHRA Top Fuel dragsters and Funny Cars produce approximately 7,000 horsepower, about 37 times that of the average street car? … that one cylinder of the eight cylinders of a Top Fuel dragster or a Funny Car produces 750 horsepower, equaling the entire horsepower output of a NASCAR engine? … that the gasoline-powered engines of NHRA Pro Stock cars produce about 1,200 horsepower, about eight times that of the average street car? … that an NHRA Top Fuel dragster accelerates from 0 to 100 mph in less than .8-second, almost 11 seconds quicker than it takes a production Porsche 911 Turbo to reach the same speed? … that an NHRA Top Fuel dragster leaves the starting line with a force nearly five times that of gravity, the same force of the space shuttle when it leaves the launching pad at Cape Canaveral? … that an NHRA Funny Car is slowed by a reverse force more than seven times that of gravity when both parachutes deploy simultaneously? … that NHRA Top Fuel dragsters and Funny Cars consume between four and five gallons of fuel during a quarter-mile run, which is equivalent to between 16 and 20 gallons per mile? … that NHRA Top Fuel dragsters and Funny Cars use between 10 and 12 gallons of fuel for a complete pass, including the burnout, backup to the starting line, and quarter-mile run? … that NHRA Top Fuel dragsters and Funny Cars travel the length of more than four football fields in less than five seconds? … that NHRA Top Fuel dragsters can exceed 280 mph in just 660 feet? … that from a standing start, NHRA Top Fuel dragsters accelerate faster than a jumbo jet, a fighter jet, and a Formula One race car? … that a fuel pump for an NHRA Top Fuel dragster and Funny Car delivers 65 gallons of fuel per minute, equivalent to eight bathroom showers running at the same time? … that the fuel-line pressure for NHRA Top Fuel dragsters and Funny Cars is between 400 and 500 pounds, about 20 times greater than the pressure on passenger-car fuel pumps? … that depending on size and angle, the large rear wing on an NHRA Top Fuel dragster develops between 4,000 and 8,000 pounds of downforce? … that the 17-inch rear tires used on NHRA Top Fuel dragsters and Funny Cars wear out after four to six runs, or about two miles? Some brands of passenger-car tires are guaranteed for 80,000 miles. … that it takes just 15/100ths of a second for all 7,000 horsepower of an NHRA Top Fuel dragster engine to reach the rear wheels? … that it's desirable for an NHRA Top Fuel dragster to race with its front wheels inches off the ground for about the first 200 feet of the run? This ensures proper weight transfer to the rear wheels, a crucial part of a good launch and quick run. … that the nitromethane used to power the engines of NHRA Top Fuel dragsters and Funny Cars costs about $30 per gallon? Sources: NHRA Communications and Technical Departments, NHRA race teams, motorsports
  8. My favorite form of motor sports by a wide margin. Top Fuel engines are incredible. The aural experience of two 11,000 horsepower engines launching is a necessary experience to have before you die. The specs on those engines are stunning.
  9. What’s old is new again. Everything stated in your last post is spot on. You seem to be on exactly the right track. While the 200 isn’t a power house, it will indeed handle brief transients easily with minimal clipping. I loaded mine at near 3 ohms for hours on end. The headroom obviously isn’t great at that load, so I monitored it pretty carefully, but it never let me down and only shut down thermally maybe once or twice a year.
  10. I wouldn’t worry about the initial power up. I own 2 M-200t amps. One was my first Carver. I beat the hell out of that amp for 10 years at obscene loads before I started seriously building and it has never let me down. Ever. No joke. It was the sole reason I based my system around Carver. If it was stored clean and dry you should have no issues. Clean the external connections with some isopropyl alcohol. Make sure you have a clean source. Enjoy. And we do like pictures. Welcome to Carversite.
  11. When an original McLaren F1 is mid pack.....!! https://jalopnik.com/when-even-a-mclaren-f1-cant-steal-the-show-1833844062
  12. Iirc the Hellcats are actually an 8hp90 which is engineered to 900 lb ft tq. As well as the fact Chrysler engineering added a ‘trans brake’ to the software (which engages the forward and reverse clutches at the same time to hold the driveline, combined with a factory ‘two step’ intentional misfire to increase intake boost pressure at launch) to get more accurate launches in a timed drag race situation. Imagine the stress on that trans with a Demon on the two step holding the trans brake. Chrysler engineering tested the Demon driveline to 2500 consecutive launches before it would certify the driveline warranty. Eeeyikes.
  13. Maybe a little clarification. The new M (and the E-AMG) is quicker because of the awd.(Too bad the CTS-V is not, and therefore still a half second back). In full out race situations the DCT is a better tool. But it cannot beat the smoothness and accuracy of the ZF during every other situation. And because the ZF is so good, the trade off in performance isn’t worth putting a clunky erratic DCT in a $140,000 performance sedan. A DCT will always be more efficient because it doesnt use a fluid damper (torque converter) in between the torque producer (engine) and the torque multiplier (trans). But because it looses that light ‘cushion’ it can feel more clunky on and off the throttle especially.
  14. Abslutely. The 8HP is behind most Hemis these days including the Ram truck. You can hear third gear just barely holding onto the asphalt during a hard Hellcat launch. It’s also used in many Bentley models including the Conti Super Sport. Car and Driver says it puts the new 10 speed from Ford/GM to shame. My brother owns multiple franchises of each and he drives nothing but Chevrolet. I told him he needs to drive a ‘19 Ram for a while. Theres a Jalopnik thread on why it’s so good I’ll see if I can find it. Edit: Nope. Car and Driver. https://www.caranddriver.com/features/a23367341/automatic-transmission-best-zf-eight-speed/
  15. I’ve had a few. A ‘95 Grand Caravan ES a ‘91 Voyager shorty. And my just retired winter beater an ‘89 Voyager shorty with a 2.5 turbo three speed (that one of course I had to bump the boost a little, got rid of the cat and had a manual boost controller. I had lots of fun with that old box, she flew). And my wife’s ‘05 and ‘12. I get her beat, retired ones to recondition. I think I’m gunna pass though because this ‘02 is one of the best. Weird thing, my sliders you can shut with a pinky, and you can unlatch them from the motor drive gear by just operating the handle, If you want to change direction etc. I think that’s another thing the bean counters got rid of, especially when Cerberus owned Chrysler for a minute. I think that’s around the year you have. But they are usually durable so if you have to operate them on auto so be it.
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