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CBR1100 motor into a EF chassis?

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Old 07-28-2006, 01:36 AM
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Default Re: CBR1100 motor into a EF chassis?

That hyabusa Smart video is awesome.

The guys here are right about the power to weight issue. I would go for a Gen 1 CRX if you wanna try it in a FF setup. The bottom line is they are using the 1.3 Hyabusa motor in that smart, and I bet that smart in the video is only like 850 pounds Soaking wet. It does not matter what the motor weighs it matters how much power you make.

I would love to have a car that rev'd to 12,000 RPM, but You are gonna have to find one hell of a light car, or build the motor to tha hilt, and hook up the snail to make it "fast".
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Old 07-28-2006, 01:53 AM
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Default Re: CBR1100 motor into a EF chassis?

they're not really talking about power to weight ratio. its more like putting an engine with a clutch made to pull 600 pounds tops is going to smoke when you stick it into a 2000 pound car including driver. It's like launching your car in 3rd gear all of the time with the added load on the clutch if you plan on using the stock transmission.
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Old 07-28-2006, 11:36 AM
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Default Re: CBR1100 motor into a EF chassis?

rawr.

That IS power to weight. The motor has to haul the weight. If you try to pull a heavy car with a motor that cannot do it, then you break the wheels loose until you get the car to move. There are ways to move a weight with a power source that is not meant to haul that weight.

At any rate, the curb weight of a Hayabusa is 1411lbs. So its not like the motors have no way to pull that weight. Im sure the 1100 is not 600 pounds lighter, so it would stand to reason that you could get a car down to 1411, and make the hayabusa make more power/torque with a turbo and haul all the 1800 pound EF you want. My 90 HF with a B17 in it weighed in at 1900 without me in it (im 250). So its not impossible.



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Old 07-28-2006, 01:11 PM
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Default Re: CBR1100 motor into a EF chassis?

Originally Posted by Whitey
A hayabusa has the same torque and a shitton more power and potential than a Z6
He said cbr1100 engine...not no hayabusa engine did he? Though some bikes come with reverse cause I was searching for bikes that had a reverse when I was eyeballing this idea when I found a 79 rhd rx7 shell for cheap.
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Old 07-28-2006, 01:29 PM
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Default Re: CBR1100 motor into a EF chassis?

Originally Posted by pac_crx
rawr.

That IS power to weight. The motor has to haul the weight. If you try to pull a heavy car with a motor that cannot do it, then you break the wheels loose until you get the car to move. There are ways to move a weight with a power source that is not meant to haul that weight.

At any rate, the curb weight of a Hayabusa is 1411lbs. So its not like the motors have no way to pull that weight. Im sure the 1100 is not 600 pounds lighter, so it would stand to reason that you could get a car down to 1411, and make the hayabusa make more power/torque with a turbo and haul all the 1800 pound EF you want. My 90 HF with a B17 in it weighed in at 1900 without me in it (im 250). So its not impossible.



You dont break the loose. the clutch takes the heat because the tires arn't moving anywhere, because the clutch cant hold the torque, thats why you smoke clutches. The reason why its not a power to weight ratio is if the clutch was larger, like a normal automotive clutch, throwing a cbr1100 engine into a car wound't have an effect on it. but since the clutch is a smaller motorcycle clutch it's not designed to move the weight of a car. especially with how motorcycles are geared. And the curb weight of a hyabusa is not ------- 1411 pounds, you're crazy.

http://www.suzukicycles.com/Products...s/Default.aspx

478 pounds dry, probably on average 650 pounds with a normal build rider.
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Old 07-28-2006, 06:32 PM
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Default Re: CBR1100 motor into a EF chassis?

Originally Posted by stillnoturbo
He said cbr1100 engine...not no hayabusa engine did he? Though some bikes come with reverse cause I was searching for bikes that had a reverse when I was eyeballing this idea when I found a 79 rhd rx7 shell for cheap.

Than its only 15 less lbft of torque and over 40 more hp

Originally Posted by rawr
You dont break the loose. the clutch takes the heat because the tires arn't moving anywhere, because the clutch cant hold the torque, thats why you smoke clutches. The reason why its not a power to weight ratio is if the clutch was larger, like a normal automotive clutch, throwing a cbr1100 engine into a car wound't have an effect on it. but since the clutch is a smaller motorcycle clutch it's not designed to move the weight of a car. especially with how motorcycles are geared. And the curb weight of a hyabusa is not ------- 1411 pounds, you're crazy.

http://www.suzukicycles.com/Products...s/Default.aspx

478 pounds dry, probably on average 650 pounds with a normal build rider.

You can't compare a single plate clutch to a multi-plate clutch. Go look at the sizes of some of the multi-plate clutches, they hold a shitton more than a much larger single plate. And also its a bike, just get a lockout so you don't smoke clutches:

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Old 07-29-2006, 12:17 PM
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Default Re: CBR1100 motor into a EF chassis?

the axle and diff situation isnt as hard as you guys may think.
http://www.psiman.net/geo1.htm
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Old 07-29-2006, 01:22 PM
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Default Re: CBR1100 motor into a EF chassis?

I just don't like the idea of using a chain to transfer power to the diff/sprocket from the tranny. I think wheel hop would snap that chain pretty quick and with it being so light I'd imagine your wanna take some stock in a chain company unless your feather that ----. The setup with the Escort with the RWD is alot easier and just one adapter needs to be made that slides onto where the chain sprocket off the tranny goes onto. Then just bolt your driveshaft to that. It's one solid piece. Only hard part would be to find someone to machine that spline onto the adapter. Then thats just a matter of what your willing to shell out for machine work.
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Old 07-29-2006, 03:43 PM
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Default Re: CBR1100 motor into a EF chassis?

rawr,

To whiteys point,
1. you can get a clutch that can take the punishment.

2. if you have a motor that makes 250HP, and 150pounds of torque, then you are gonna be able to spin the wheels. Rev it to 9 grand, and dump the clutch, feather the throttle, and the car is gonna move. You are not gonna have a situation where the front of the car is so heavy that you cannot light up the tires if the motor makes the power. You are just not thinking logically on this one. Worst case scenario you have to run like 13" tires that are 6 inches wide, so you are guaranteed to light them up.

Did you watch the smart video? That hybusa motor lights those lil meats up NO problem, its not because the car only weighs x amount, its bcs the power is there.

Anyways, I think it could be done, but like the second link shows. I would start with a lighter car, a 1G CRX would make a better donor car.
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Old 07-29-2006, 05:01 PM
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Default Re: CBR1100 motor into a EF chassis?

why not use an old Bug or Ghia chassis?? rear engine, rear drive, and much lighter than an Ef (or just about any honda for that matter)
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