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Registered Member #1225
Joined: Sat Jan 12 2008, 01:24AM
Location: Beaumont, Texas, USA
Posts: 2253
I am bored again, so it is soo time for an engine thread! I love working on engines, and am currently rebuilding a suzuki gsxr 750 engine, which is 750 cubic centimeters displacement, around 119 horse power, 14000 max rpms, with a built in(of course) 5 speed transmission, which is going to go onto a home built largish dune buggy, called the barracuda from The Edge:
Well, i often like looking(more like all the time) at engine stuff, so here is a few of my favorites:
An 8 cylinder engine on a dyno, with a red hot exhaust manifold. When it slows down near the end, it is just because they are load testing, the engine is fine and apparently bigger engines tend to have very hot exhaust manifolds.
another engine with glowing exhaust manifolds, glowing brightly. It is 1153 horsepower and it is also being tested on a dyno. It is turbo charged as you can see, but watch it till at least 15 seconds to see the glowing exhaust manifold, and even after the turbo, the pipes are still faintly red.
Hugely powerful quad rotor with 1664 horsepower! (compare that to a diesel which might only produce 200hp, or even better, a 5hp go cart, which can easily reach 50mph)
1000 cubic centimeter engine in a golf cart chassis! That is probably about 130 horsepower or something compared to previous 5hp at the most.
Piranha buggy, which is the same kind i am planning. I think it was around 130 horse power. The buggies can get up to 120mph with the sprockets from the website with all the parts, but with these engines it could probably go quite a bit faster. I saw a suzuki gsxr 750 bike reach 190mph (~309 kph), in a fairly short time, it will be my next link.
The almighty gsxr750, reaching 190mph or 306kpm with a digital speedometer. Nothing compared to the suzuki hayabusa though.
The hayabusa. Perhaps the meanest bike out there(if you are going for speed and hp). This one has obviously been tuned up, and it has dual turbochargers. 500hp.. Which, is pretty incredible considering it is near 3 times the power of most small block trucks that have engines that are much heavier and like 2 times as big. And, it is only 4 cylinders, not 6 or 8, which would give better fuel economy(maybe not with an engine this powerful).
Smart car with a freaking hayabusa in it, with more than 200hp. I am sure the makers of these 'smart cars' did not see this one coming.
These are just a few of the many videos that i like, if you want more, let me know. I doubt anyone will get this far into the page as they will lose interest, but i am sure someone at 4hv.org has a love for engines too.
EDIT: Another smart with a hayabusa: this one is better. The engine has so much horsepower, it peels out so fast it hits the speed limiter(that is the noise that sounds like back firing or something, the rpm's get to fast so it governs it down, to insure no damage.
Also, a cool website that converts mph to kph, or kph to mph:
Registered Member #56
Joined: Thu Feb 09 2006, 05:02AM
Location: Southern Califorina, USA
Posts: 2445
I have a dune buggy with a 2.3L flat-6 in it (ancient all aluminum air cooled corvair engine) that should put out about 90hp, although the thing as a whole needs some work. My grandpa traded it for a walpaper steamer in the 70s, and gave it to my dad who rebuilt the engine for shop class and whose friends proceed to crack the transmission housing on the first test run. Then it sat for 20 years until I was big enough to like it, so I swapped the gears out of the broken transmission into a different housing (that had rusty gears in it) and cleaned all of the rat nests out of it. BTW, don't let rats get into a corvair air cooled engine, there are shrouds over the fins on the cyllinders can't be removed without pulling the heads...
After that it is working ok, although we put some bigger tires on it (so that it had more than 4" of ground clearance) the gears are all wrong, so some day we need to rebuild the differential and put some lower gears in it. We haven't got it going much more than 30 since we take it out the desert and 30 is about as fast as you want to be moving, but it works great for what it does.
Registered Member #30
Joined: Fri Feb 03 2006, 10:52AM
Location: Glasgow, Scotland
Posts: 6706
Cool buggy ... does it have rear suspension? I guess the front has suspension, it looks like the front end of a VW Beetle.
When I was a student, I got involved with the university's Formula Student team. My PhD supervisor was in charge of the team, and he sent me to help them out because he was too busy to do it himself. It was the first time they'd competed and total chaos. For example, we finally got the engine (from a wrecked Honda CBR600) running on a test bench at about 1am, and some grease on the exhaust manifold caught fire and set off the fire alarm, which automatically called the fire brigade, and we had some explaining to do. (Whose idea was it to put a smoke detector in the Mech Eng building's engine test cell anyway?)
We finally got the car to the race where it managed half a lap before its transmission broke.
(I'm the big lanky guy in the green T-shirt, back row on left)
Note, in case I give the impression that they're a bunch of doofi, that was 2001 and the Strathclyde Formula Student team have got a lot better since.
Registered Member #1225
Joined: Sat Jan 12 2008, 01:24AM
Location: Beaumont, Texas, USA
Posts: 2253
Wait, isn't the CBR600 just a 600cc bike engine? I know i have seen that name somewhere.. I guess i forgot, i have the thread about the gsxr750 and dune buggy me and my bro are building, currently we are waiting for some money cause the storm screwed everything up, and my bro was demoted.
We need about 9 grand to finish it up, about 2000 to get the engine running(we could buy a used running engine off of ebay for much less, but we already started, and it will be fun and worth the extra time and money, so that we can call it our own) and 7000 for the buggy. We are going to go with the double A arm suspension. We are going to buy the parts we cannot find or bend our selves, and weld it all. We are buying the rear end completed, and we are going with the U-V joints.
Registered Member #56
Joined: Thu Feb 09 2006, 05:02AM
Location: Southern Califorina, USA
Posts: 2445
The rear end is just the rear end out of a corvair, and the front end is (as steve pointed out) off a VW bug. It doesn't have much travel (good 6" or so) but it does have shocks with coil over springs in the back. We had to replace both the springs/shocks in the back because the springs had sagged the thing almost touched the ground, and the shocks had lost their gas charge and weren't doing much of anything.
Keep in mind that a corvair rear end has the axle physically directly the the engine (well, with a clutch in there of course), and the transmission bolted to the other side of the differential. There is a shaft that transfers power through the diff to the trans, which has a funky coaxial shaft that also transfers power back to the diff where it is geared down some more and sent out through two tiny drive shafts (honestly, they have to be about 8" long) to the wheels. The whole engine/diff/trans assembly is held in by a 1/2" bolt in the engine block in the back and a 3x 1/4" bolts into the diff in the front, the fuel line, all of 4 wires (3 of which are warning lights), and the throttle linkage (the drive shafts just slide into the diff when you install it).
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