CBR1100 motor into a EF chassis?
 

i knwo it sounds crazy as ----.... but hell it could work...

After I finish my turbo honda build in 2 years I was thinking of doing a 1100 honda bike engine into a EF chassis... would be a high revving mother fucker and have sequential shifting! of course there would be the problem of getting the output of the transmission into a differential and out to the wheels via axles......

but has anyone else ever thought of this? it would be fun as hell

ps... it would be my project to build thorughout my engineering degree

Re: CBR1100 motor into a EF chassis?
 

http://www.smartuki.com/spanishsmart.wmv my insperation

Re: CBR1100 motor into a EF chassis?
 

ef chassis is too heavy. it would suck

Re: CBR1100 motor into a EF chassis?
 

wow i had a bet that you'd be the first to answer

i was thinking, stripped interior.... done up motor a bit making say 200hp... still think it wouldnt move the car good? i honestly dont know... i know it owuld burn and be fun though

Re: CBR1100 motor into a EF chassis?
 

woudn't be worth it.

Re: CBR1100 motor into a EF chassis?
 

If you could do it dirt cheap I'd say go for it but that may not be possible as you would be fabing a lot of stuff, mounts, axles, differential like you said etc...etc.

Re: CBR1100 motor into a EF chassis?
 

By itself with the CBR motor it would be pretty fun, but add a turbo in to that mix and it would be downright terrifying :6

Re: CBR1100 motor into a EF chassis?
 

I've seen a cbr900 engine in a older UK escort but it was RWD. ALot easier then trying to do a FWD setup. Even when it wasn't boosted it still moved pretty good and could light up the back tires. I've always wanted to do this but in like a 1g rx7.

Re: CBR1100 motor into a EF chassis?
 

an ef chassis is pretty fucken light with no engine
it may be decent quick but not turbo b series quick

Re: CBR1100 motor into a EF chassis?
 

Those motors dont have much torque but they sound good. Why not put one infront and one in the back and let this be your insperation: Ultima GTR twin hayabusa engine http://www.jalopnik.com/cars/custom-...ine-029819.php

Re: CBR1100 motor into a EF chassis?
 

That's a better idea. If this is going to be a dd I would think about something else, since bike engines need more maintenance and rebuilds typically due to high revving, lightweight components, etc. What kind of clutch would that thing need for a heavy car chassis?

Re: CBR1100 motor into a EF chassis?
 

Put one in a Metro, Ford Festiva, etc.

Re: CBR1100 motor into a EF chassis?
 

ive sean lots of austin minis powered by bike engines, very very fast but ef is too heavy.

Re: CBR1100 motor into a EF chassis?
 

SITUNE's RWD CBR 900 Turbo'd UK Escort.
http://www.situne.no/images/large/20176.jpg
http://www.situne.no/images/large/20141.jpg
Alot easier to setup for a RWD then a RWD. They just make a mount that slide onto where the sprocket goes onto the the driveshaft bolts onto that.
http://www.situne.no/images/large/20101.jpg
http://www.situne.no/images/large/20098.jpg
Sexy... 8)
http://www.situne.no/images/large/20165.jpg
and just think you'd have basically a seq. tranny. They updated the site but took alot of the stuff down on it but they used to have a couple videos of it that were pretty cool. They had it NA for awhile and it still scooted around pretty good.
Check out http://www.situne.no/index.php?id=3&carid=1

Re: CBR1100 motor into a EF chassis?
 

that thing must rip

Re: CBR1100 motor into a EF chassis?
 

There is a VERY fine line between terrifying and fun.

Re: CBR1100 motor into a EF chassis?
 

Again this is way above your skill level

Re: CBR1100 motor into a EF chassis?
 

why the ---- are you talking about 2+you're not going to be doing for 2+ years from now

Re: CBR1100 motor into a EF chassis?
 

A bike engine in a fwd would be too much work just to have the hp numbers of around a z6 and the torque of tug of war match with a infant. All that work for just less then stock numbers. Revving your engine to 13k and going as fast as a civic cx is hardcore. :1 In a rwd it would be a ---- ton easier but I'd think you'd still have to boost it to get something better then a stock feeling. Yeah I know the weight difference would be probably pretty dramatic as the weight of the bike's engine and tranny would probably weight as much as just the car's tranny. Something I always wanted to do only if I got a light rwd shell and bike engine cheap or free.

Re: CBR1100 motor into a EF chassis?
 

The bike w/motor is 500lbs. (no driver)

Lets say you get the EF to weight 1500lbs without driver.

You end up with a motor that is pulling 3x the weight..

..that's like putting a B16 in a car that weighs ~7000lbs. The 1.6L of displacement just doesn't have the umpth.

Re: CBR1100 motor into a EF chassis?
 

its a lame idea plain and simple. a boosted d series would walk all over it.

Re: CBR1100 motor into a EF chassis?
 

This idea is down right retarded. You would spend less on a b series, have more displacement, torque, horsepower , and you could back out of a parking spot by using reverse. Unless you machine the ---- out of the side of the engine and crank for it to accept a flywheel and a normal honda trans, or whatever trans tickles your fancy. It might be alittle difficult to drive that car.

Re: CBR1100 motor into a EF chassis?
 

LMAO that's funny ---- didn't think about that one. A honda GoldWing has reverse.

Re: CBR1100 motor into a EF chassis?
 

A hayabusa has the same torque and a shitton more power and potential than a Z6 ::)

Re: CBR1100 motor into a EF chassis?
 

http://video.google.com/videoplay?do...59502945869301 185bhp 105ft/lbs i'd say thats better then your "average" d

Re: CBR1100 motor into a EF chassis?
 

I know the SCCA d and c sports racer (prototype looking cars) have R1 and 1300 cc motors in them. They eat up clutches like crazy and they are only 850 pounds. But they also push them through the air at 160+mph, which is hard on needs. Cool idea but weight is everything.

Randy

Re: CBR1100 motor into a EF chassis?
 

Exactly what I was thinking, no reverse. That's really the only problem I can foresee that's not "easy" to overcome. Also, why an ef? Why not a cvcc or 3rd gen civic/1st gen rex? All said and done, it's not really my cup o' tea, though I must admit I have thought about a similar idea, and decided it wouldnt be worth it. Just put all the time and money in to a turbo b series or something. Better yet, turbo an NSX engine and stick it in an EF O0

Re: CBR1100 motor into a EF chassis?
 

If you have the motor... Build a shiftercart... ANd pee yourself everytimer you hit the gas!!!

Re: CBR1100 motor into a EF chassis?
 

----...I used to have a shiftercart with a 250r motor...that alone would make you ---- yourself ;D

Re: CBR1100 motor into a EF chassis?
 

Ya a friend of mine had one with one of those old 3 cyl 2stroke kawasakis iin it----- INSANE, i didnt pee ....but i was wet (and a bit shaken)....

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".

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.

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.

Re: CBR1100 motor into a EF chassis?
 

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.

Re: CBR1100 motor into a EF chassis?
 

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.

Re: CBR1100 motor into a EF chassis?
 

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


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:

http://www.hmt-tv.com/hmt/matt/newbanshee/DSC00973.JPG

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

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.

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.

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)