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  #16 (permalink)  
Old 07-03-2010, 07:41 PM
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2 engines 1 car

You have one big problem to overcome - both engines have to run at the exact same speed for optimal performance or one engine is always "fighting" the second engine. Multiple motored vehicles normally are joined at the cranks to essentially make a 16 cylinder motor and turn at a constant rpm. For example - multiple engined tractor pull vehicles tie inline motors crank to crank and side by side motors are tied together at the rear.

If you wanted an "burn out" exhibition vehicle mount the engines facing each other. Don't tie them together. Tie down vehicle both directions. Hammer the throttles so the front wheels are going backwards and the rear wheels are going forward. In other words both engines would be fighting each other 100%.

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  #17 (permalink)  
Old 07-03-2010, 11:59 PM
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they are both not going top be running at the same time
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Old 07-04-2010, 12:08 AM
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Quote:
Originally Posted by jameshi
they are both not going top be running at the same time
What would be the point keeping in mind this is a hot rod forum devoted to high performance.
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Old 07-04-2010, 11:47 AM
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so it could be a dd and be a race car to
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Old 07-04-2010, 12:50 PM
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Think again!!

James -
I applaud the enthusiasm of youth, but go back and re-read Poncho's entry from yesterday. He couldn't have said it any clearer...it makes no sense. What kind of 6-cylinder do you think you'll install for 'economy' that will haul around this car with an extra 800 or so pounds of V-8 sitting in the trunk? AND, what kind of performance do you think it cvould give you?
We can get excited about a twin-engined car...a hot rod, a tire-smoker, an exhibition monster. We can't fathom, though, a DD and hot rod combo like you envision. ' hate to burst your dream, but.........
Whatever you tackle, though, good luck!!
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Old 07-04-2010, 01:13 PM
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H'mmmmm.....pondering.. What if i were to put another engine drive train in the rear of my Focus... It would fit just fine with a cover...some tinkering with the shift linkage and just maybe and I say just maybe I could geti the two engines to co-ordinate with a common ECU..H'mmm just nuts enough to make work..With superchargers the Zetec will make about 250 ea for a 500hp 4wd..mega bunouts anyone...

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Old 07-04-2010, 01:50 PM
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http://www.driversfound.com/scirocco/history/bimotor/
Hi twin engined cars have been tried on this side of world by many, but as some poster above stated this forum leans more towards Hot Rods.
The motorsport im involved in has hundreds of twin motorbike engined cars and buggys , if you want to "stimulate" your mechanical mind then Google Autograss UK.
I have owned and raced" twins" as we call them,and its never ending work allthough" big grins "
Supprisingly the syncronisation is not that critical, thnk of a well worn V8 only some of the cylinders are working the others are just going along for the ride,!!!!
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Old 07-04-2010, 03:02 PM
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This was in Hot Rod awhile back.

http://www.hotrod.com/featuredvehicl...ggy/index.html
Shane

Edit : burnout video

Last edited by Chevrolet4x4s; 07-04-2010 at 03:09 PM.
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  #24 (permalink)  
Old 07-04-2010, 09:09 PM
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Cool idea but I find it easier to just have 2 cars.

35 mpg beaters are too cheap not to have one and I can use the Chevelle or the FFR Roadster for racing.
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Old 07-05-2010, 05:53 PM
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This august issue of hot rodder has a twin engine dragster in it. scanning through it, one engine was facing forward, one backward. one flywheel was bolted to the crank snout of the backwards one and the flywheel teeth were meshed together. the engines were next to each other and clocked with the inside banks of both engines upwards. cool stuff. it ran high 8's low 9's in 1960-61. I think it was the howards car.
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Old 07-09-2010, 10:38 AM
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Two engined dragsters have been around since the early 60's

Eddie Hill's Double Dragon

Double Dragon, it had a 92 wheelbase, and side-by-side blown Pontiac engines with separate clutches, drive shafts, and ring and pinions. He ran four rear slicks in open competition, and two for smokier runs at match races.

Freight Train AA/GD (1959-1971) Owner: John Peters of Santa Monica, CA.

Most famous and recognizable Top Gas dragster of all time is John & Bev Peters twin engine Freight Train Top Gas Dragster. From 1960 (Peters & Frank) to 1970 there were four different "Trains", each nicer and faster than the one before it.

Voigt & Thompson "The Monster"

Early Lions gas dragster and top eliminator standout Fritz Voigt teamed up with Thompson later on and together they campaigned this frightening, four-wheel drive and twin-engine dragster "The Monster", which later became a Bonneville record holder.

I have personally seen the Freight Train and the Double Dragon race at different times. Was quite the spectacle. Never did get to see "The Monster" thought, wish I had.

Thanks to Caclefest.com, CompetitionPlus.com and Draglist.com
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Old 08-11-2010, 06:53 AM
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I have known two guys that put two engines in old VW Siroccos. You can probably use a single transmission with a differential to distribute the power, there are many pulling tractors that link 4-12 engines to a single gearbox. Only question I have is what body would you be putting this two motor set-up in?
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Old 08-11-2010, 07:57 AM
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Quote:
Originally Posted by jameshi
so it could be a dd and be a race car to
And that is why there are turbochargers and fuel injection. Near stock idle, 25+MPG's and 800+hp is fairly easily when you combine those two.
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