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Old Aug 20, 2016 | 11:01 PM
  #1  
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Twinni Cooper

So... I've been thinking for a while about getting another R53, wrecked from the boot side, yanking the engine, and starting a Twinny Project.

1.. yes.. i'm capable.
2. that's not really what this is about. lol

The thing is... a discussion came up when i was talking to someone about this, who always has to be correct. And i'd very much like to rub his face in it like a dog who peed on an expensive rug.

So.. i won't put my own input on this or my own opinion. I want to know what you guys say the answer is and WHY and if it's proven.

Whenever you google something like this, pretty much nothing pertinent comes up.

SO.... You have 1 engine in the front. for poops n giggles, let's say for ease of math 300hp and 300tq.

has it's own transmission, drives the front wheels, it's own ecu, fuel supply. just like a normal mini.

you have a second completely autonomous engine in the boot. has it's own transmission, ecu, fuel supply. (probably shares the gas tank). Just like a porsche (per say). it is also 300hp and 300tq... you could literally turn one or the other off and put it in neutral and drive with the other one. 2 separate motors completely. "I feel like being rear wheel drive today".

again.... ease of math numbers.

the question.

Would the CAR be 600hp with 600ft/lb tq? Do you say "YUP, i have a 600hp mini" ?

or would it be 300hp with 600ft/lb tq ?
do you say "YUP i have a twin engine mini and each of them produces blah blah" ... ?

-- and, why?

again, i won't state my opinion, or what this other guy says. But i'm interested to know you're takes on it.

Here are some things to consider, which add confusion to this.

If you put the car on a front wheel dyno, it would say 300/300

If you put it on a rear wheel dyno, it would say 300/300.
If you put it on a 4 wheel dyno, would it say 300????? or 600?

I assume the dyno would say 300, because the wheels won't spin up any faster on the 4 wheel dyno really. BUT... does that mean it's a 300hp car? or 600?

NOW................ If you have two 350hp 350tq, chevy 350 V8's... and you take the output of the crank shaft and bolt it to the flywheel of the other one, making a v16, is that now a 700hp engine?

It drives the same transmission, and puts all of the power to the same two wheels. and by definition, it's running as one unit.

so... how is that rated.... is that different than having 2 completely autonomous engines?


see my point? this gets pretty confusing when you consider the variables. and that's not all of the variables to consider!


ok.... go for it!
 
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Old Aug 23, 2016 | 04:57 PM
  #2  
Mini Mania's Avatar
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Twin Engine MINI

Originally Posted by mitch.berry1@yahoo.com
So... I've been thinking for a while about getting another R53, wrecked from the boot side, yanking the engine, and starting a Twinny Project.

1.. yes.. i'm capable.
2. that's not really what this is about. lol

The thing is... a discussion came up when i was talking to someone about this, who always has to be correct. And i'd very much like to rub his face in it like a dog who peed on an expensive rug.

So.. i won't put my own input on this or my own opinion. I want to know what you guys say the answer is and WHY and if it's proven.

Whenever you google something like this, pretty much nothing pertinent comes up.

SO.... You have 1 engine in the front. for poops n giggles, let's say for ease of math 300hp and 300tq.

has it's own transmission, drives the front wheels, it's own ecu, fuel supply. just like a normal mini.

you have a second completely autonomous engine in the boot. has it's own transmission, ecu, fuel supply. (probably shares the gas tank). Just like a porsche (per say). it is also 300hp and 300tq... you could literally turn one or the other off and put it in neutral and drive with the other one. 2 separate motors completely. "I feel like being rear wheel drive today".

again.... ease of math numbers.

the question.

Would the CAR be 600hp with 600ft/lb tq? Do you say "YUP, i have a 600hp mini" ?

or would it be 300hp with 600ft/lb tq ?
do you say "YUP i have a twin engine mini and each of them produces blah blah" ... ?

-- and, why?

again, i won't state my opinion, or what this other guy says. But i'm interested to know you're takes on it.

Here are some things to consider, which add confusion to this.

If you put the car on a front wheel dyno, it would say 300/300

If you put it on a rear wheel dyno, it would say 300/300.
If you put it on a 4 wheel dyno, would it say 300????? or 600?

I assume the dyno would say 300, because the wheels won't spin up any faster on the 4 wheel dyno really. BUT... does that mean it's a 300hp car? or 600?

NOW................ If you have two 350hp 350tq, chevy 350 V8's... and you take the output of the crank shaft and bolt it to the flywheel of the other one, making a v16, is that now a 700hp engine?

It drives the same transmission, and puts all of the power to the same two wheels. and by definition, it's running as one unit.

so... how is that rated.... is that different than having 2 completely autonomous engines?


see my point? this gets pretty confusing when you consider the variables. and that's not all of the variables to consider!


ok.... go for it!
Here ya go!


Drive Hard. Drive Safe. Keep Engine.
 
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Old Aug 23, 2016 | 09:44 PM
  #3  
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Have you ever seen a long, heavily loaded train where there's two or three or four locomotives coupled together? Why do you think they do that, to look cool and waste fuel? Or because they need 2, 3, or 4x the power to get the load moving?

On another forum, far, far, away, I once read a thread where a guy with a degree in physics, who always had to be right, was making a complicated argument complete with equations and a lot of hand waving that when you lost traction in a turn in a rear wheel drive car the right thing to do was accelerate, because F=mA and the torque is RxF and the right hand rule so therefore with the coefficient of friction and expansion of the radius of the tire and chassis twist due to the driveshaft and blah blah blah blah... if he hasn't died yet from going off the road backwards, he surely will soon.

Don't feed the trolls, not on the internet, and not in real life.
 
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Old Aug 23, 2016 | 10:04 PM
  #4  
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Originally Posted by Mini Mania
Here ya go!

2002 Twin Engine Mini Cooper - Jay Leno's Garage - YouTube

Drive Hard. Drive Safe. Keep Engine.
yeah like that one... that's the first one i saw to give me the idea. lol cool car for sure.
 
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Old Aug 23, 2016 | 10:22 PM
  #5  
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Originally Posted by squawSkiBum
Have you ever seen a long, heavily loaded train where there's two or three or four locomotives coupled together? Why do you think they do that, to look cool and waste fuel? Or because they need 2, 3, or 4x the power to get the load moving?

On another forum, far, far, away, I once read a thread where a guy with a degree in physics, who always had to be right, was making a complicated argument complete with equations and a lot of hand waving that when you lost traction in a turn in a rear wheel drive car the right thing to do was accelerate, because F=mA and the torque is RxF and the right hand rule so therefore with the coefficient of friction and expansion of the radius of the tire and chassis twist due to the driveshaft and blah blah blah blah... if he hasn't died yet from going off the road backwards, he surely will soon.

Don't feed the trolls, not on the internet, and not in real life.
Well, the guy is right....... but... only if you're trying to drift around the corner sidways, and, know exactly where to point your wheel while doing it... haha...

but even then, it takes YEARS to get the kind of experience to do a controlled lateral slide... or.. as the kids call it "drifting" ... but yeah.. lol. The scientist guy has no idea how rear differentials work, or limited slip, or, intelligent computing / traction control etc.. His is a fact of, he may be right, given the equation. however, if the equation is missing parameters, it won't be right.

With physics, you can prove beyond a shadow of a doubt, that an semi truck, can hang from the golden gate bridge from a used 1980's honda civic fan belt. Same with statistics.... both are as accurate as the data input. but... fortunately, scientists often dismiss each others findings, for this reason. it has to be scrutinized and tested for years before it can be made fact. lol. so, tell the guy to go try it a few dozen times, with 15 different rear wheel drive cars. after a few wrecks, his insurance will drop him... "sorry geico, it was all in the name of science". lol
 
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