 914 Hayabusa Build |
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| sixnotfour |
 Oct 5 2018, 01:36 PM
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#21
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914 Wizard  Group: Members Posts: 10,411 Joined: 12-September 04 From: Life Elevated..planet UT. Member No.: 2,744 Region Association: Rocky Mountains 
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Reverse Gearbox for Motorcycle Powered Cars from Roadstercycle
https://thekneeslider.com/reverse-gearbox-f...-roadstercycle/ |
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| Mike Bellis |
Oct 5 2018, 05:18 PM
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#22
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Resident Electrician Group: Members Posts: 8,345 Joined: 22-June 09 From: Midlothian TX Member No.: 10,496 Region Association: None
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| Dave_Darling |
Oct 5 2018, 05:38 PM
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#23
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914 Idiot Group: Members Posts: 14,981 Joined: 9-January 03 From: Silicon Valley / Kailua-Kona Member No.: 121 Region Association: Northern California
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Interesting. According to one dyno graph I've seen, the torque rating of the 'Busa engine is 50 lb-ft at 2000 RPM. That's not too bad, actually!
(IMG:http://www.914world.com/bbs2/uploads_offsite/www.superbike.co.uk-121-1538782701.1.jpg) --DD |
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| thelogo |
Oct 5 2018, 05:48 PM
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#24
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Senior Member Group: Retired Members Posts: 1,510 Joined: 6-April 10 Member No.: 11,572 Region Association: None |
QUOTE(SirAndy @ Oct 5 2018, 10:49 AM)  QUOTE(jd74914 @ Oct 5 2018, 10:12 AM) QUOTE(SirAndy @ Oct 5 2018, 01:07 AM) 100 ftlb of torque at 8000rpm doesn't sound like fun in a 2000+ lbs car ... It's all about tractive force, not engine torque. Geared correctly it's a much different picture. In any case, 300 hp @ 10k is 157 ft*lbs of engine torque so not too bad. Hypothetically [to equate to a traditional car engine] with gearing to bring the input engine speed into a conventional transmission back down to normal, you'd be the equivalent of a 314 ft*lb torque at the input shaft. Not too shabby. (IMG:style_emoticons/default/wacko.gif) Interested to see some progress! (IMG:style_emoticons/default/smile.gif) Have you ever driven a 914 with a high reving engine with comparatively low torque? I have, and unless you are driving around a race track where you are near the rev limit for 95% of the time, those kinds of engines are the exact *opposite* of "fun to drive". (IMG:style_emoticons/default/shades.gif) (IMG:style_emoticons/default/agree.gif) But why aren't you using two hybusas motors for a v8 Then you would have something This from the guy who always wanted to do a 914 /honda goldwing conversion and was told on this site it was (hands down a dumb f☆☆kn idea) I love this place (IMG:style_emoticons/default/wub.gif) |
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| thelogo |
Oct 5 2018, 05:49 PM
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#25
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Senior Member Group: Retired Members Posts: 1,510 Joined: 6-April 10 Member No.: 11,572 Region Association: None |
QUOTE(Mike Bellis @ Oct 5 2018, 04:18 PM) Your the man , beat me to it |
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| cali914 |
Oct 5 2018, 11:50 PM
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#26
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cali914 Group: Members Posts: 447 Joined: 26-April 06 From: Berkeley Ca. Member No.: 5,934 Region Association: Northern California |
QUOTE(eatpez @ Oct 4 2018, 10:31 PM) My brother and I picked up a couple rollers and have started our builds. The plan is to put supercharged Hayabusa engines in them, upgrade the suspension and brakes and get them on the road (safely) before working on anything cosmetic. We picked them up from Keith down in Nepoleon, OH and he recommended I document the build here. My brother is working now on the fab for the engine cradle and sourcing the transfer case to drive the rear axles. My job at present is to beef up the suspension and brakes to handle the planned 300+HP. Mine is the black 74 which will probably end up with steel GT flares. My brother's is the primed and glassed out 72. Let the fun begin! (If anyone has 5-lug / brake upgrade parts available, please PM me) go for it. (IMG:style_emoticons/default/cheer.gif) (IMG:style_emoticons/default/ar15.gif) (IMG:style_emoticons/default/stirthepot.gif) |
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| porschetub |
Oct 6 2018, 01:45 AM
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#27
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Advanced Member Group: Members Posts: 4,697 Joined: 25-July 15 From: New Zealand Member No.: 18,995 Region Association: None |
To me its like making a bunch off engineering issues for little result/advantage,things don't pan out on this one as there is WAY better other repowers .
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| Chi-town |
Oct 6 2018, 09:40 AM
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#28
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Senior Member Group: Members Posts: 850 Joined: 31-August 18 From: Disneyland Member No.: 22,446 Region Association: Southern California |
QUOTE(thelogo @ Oct 5 2018, 04:48 PM) This from the guy who always wanted to do a 914 /honda goldwing conversion and was told on this site it was (hands down a dumb f☆☆kn idea) That is actually a great idea! The motor is shaft drive and it already has a reverse system using the starter. |
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| whitetwinturbo |
Oct 6 2018, 05:15 PM
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#29
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Honey, does this wing make my ass look fat? Group: Members Posts: 1,391 Joined: 22-October 11 From: Newport Beach/Kalefornya/USA Member No.: 13,704 Region Association: Southern California |
LOVE the idea!
(IMG:style_emoticons/default/smoke.gif) (IMG:style_emoticons/default/smoke.gif) (IMG:style_emoticons/default/smoke.gif) |
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| 914forme |
Oct 7 2018, 09:26 AM
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#30
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Times a wastin', get wrenchin'! Group: Members Posts: 3,896 Joined: 24-July 04 From: Dayton, Ohio Member No.: 2,388 Region Association: None
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Build IT! Just build IT!, we can sit here an postulate all day long, Build IT and lets see the outcome.
I have my theories, I also have my theories on a Desiel build. I would also have my theories if you said, Miata, Chevy v6, Ford V8, Chevy V8, LS engine, S2000, Honda K, Honda V6, Nissan V6, Ford / Yamaha SHO, Corvair, and lets not forgot the Subaru crowd. And now your seeing the idea of Tesla drives. Build IT, just Build it. Then drive it like you stole it. If you don't like it you have the skills to drop something else into them, and make a go at it again. If that happens I have always wanted to build a hybus shifter cart. Can't race it anywhere except in X class, but Damn it would be fun, and a set of rear tires for each run. (IMG:style_emoticons/default/piratenanner.gif) I still like the idea of a V8 hybusa, but that is just me thinking about a slightly large lighter cart style car. And Atom V8 clone, Thanks Muller for finding that one. (IMG:style_emoticons/default/headbang.gif) |
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| gereed75 |
Oct 7 2018, 09:36 AM
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#31
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Senior Member Group: Members Posts: 1,240 Joined: 19-March 13 From: Pittsburgh PA Member No.: 15,674 Region Association: North East States
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Those v8 bike based motors are just so compelling from an engineering standpoint - brilliant. Just not sure what you do with them.
As to original poster - Build it man, looks like big fun on a number of plains!! |
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| 76-914 |
Oct 7 2018, 09:56 AM
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#32
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Repeat Offender & Resident Subaru Antagonist Group: Members Posts: 13,490 Joined: 23-January 09 From: Temecula, CA Member No.: 9,964 Region Association: Southern California
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QUOTE(914forme @ Oct 7 2018, 08:26 AM) Build IT! Just build IT!, we can sit here an postulate all day long, Build IT and lets see the outcome. I have my theories, I also have my theories on a Desiel build. I would also have my theories if you said, Miata, Chevy v6, Ford V8, Chevy V8, LS engine, S2000, Honda K, Honda V6, Nissan V6, Ford / Yamaha SHO, Corvair, and lets not forgot the Subaru crowd. And now your seeing the idea of Tesla drives. Build IT, just Build it. Then drive it like you stole it. If you don't like it you have the skills to drop something else into them, and make a go at it again. If that happens I have always wanted to build a hybus shifter cart. Can't race it anywhere except in X class, but Damn it would be fun, and a set of rear tires for each run. (IMG:style_emoticons/default/piratenanner.gif) I still like the idea of a V8 hybusa, but that is just me thinking about a slightly large lighter cart style car. And Atom V8 clone, Thanks Muller for finding that one. (IMG:style_emoticons/default/headbang.gif) (IMG:style_emoticons/default/agree.gif) Well said! (IMG:style_emoticons/default/beerchug.gif) |
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| FL000 |
Oct 7 2018, 10:38 AM
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#33
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Member Group: Members Posts: 388 Joined: 31-January 12 From: Lancaster, CA Member No.: 14,076 Region Association: Southern California
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I’ve always wanted to do a hyabusa 914. To handle the weight and help with reliability I was thinking of 2 hyabusas, sitting laterally oppossed with some counter rotating mechanism to get the power to a diff. No matter which way you decide to go, lots of ways to do it, and the one off factor is what it is all about. Good luck.
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| betz |
Apr 12 2019, 03:59 PM
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#34
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Member Group: Members Posts: 76 Joined: 22-October 18 From: San Leandro, CA Member No.: 22,593 Region Association: Northern California |
Maybe a little off topic, but does anyone know if the 901 trans can handle high RPMs?
I know everyone says torque is what kills these transmissions, but can the input shaft spin to 8 or 10k safely? I know with the early RX7's, they limited them to 7k RPM not because of the limit of the engine, but of the transmission. And the transmission would send pieces of shrapnel into the engine bay when they went, so the racecars' solution was a flak jacket around the transmission, hehe. In any case, I know that 914's were often swapped with rotaries, I'm sure if there was an issue with the trans, someone would know. |
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| rhodyguy |
Apr 12 2019, 07:18 PM
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#35
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Chimp Sanctuary NW. Check it out. Group: Members Posts: 22,060 Joined: 2-March 03 From: Orion's Bell. The BELL! Member No.: 378 Region Association: Galt's Gulch |
Do those links work for anybody? Too many redirects?
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| 2mAn |
May 15 2019, 11:18 AM
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#36
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trying to see how long I can go without a 914 Group: Members Posts: 487 Joined: 14-November 13 From: Westchester (Los Angeles) Member No.: 16,644 Region Association: Southern California |
QUOTE(thelogo @ Oct 5 2018, 04:48 PM) This from the guy who always wanted to do a 914 /honda goldwing conversion and was told on this site it was (hands down a dumb f☆☆kn idea) I love this place (IMG:style_emoticons/default/wub.gif) QUOTE(Chi-town @ Oct 6 2018, 08:40 AM) That is actually a great idea! The motor is shaft drive and it already has a reverse system using the starter. This was the Bike Engine Conversion I had always pictured... didnt the original 2L-6 make about that much power anyways? most of the fun with a fraction of the cost of a "correct" -6 |
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| rhodyguy |
May 15 2019, 11:43 AM
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#37
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Chimp Sanctuary NW. Check it out. Group: Members Posts: 22,060 Joined: 2-March 03 From: Orion's Bell. The BELL! Member No.: 378 Region Association: Galt's Gulch |
The 7 must be a handful. The high rpm scream is something else. What do you think the $ number is on one of those engines?
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| eatpez |
May 17 2019, 11:58 AM
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#38
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Newbie Group: Members Posts: 18 Joined: 4-October 18 From: Michigan Member No.: 22,543 Region Association: North East States |
The build is proceeding slowly. Mostly still stripping the chassis and build a rotisserie to do the needed body work. Going to replace a few pans, reinforce the longs, and modify the front tub for a sway bar, etc. I'll try to post some pictures soon.
Anyone who has a donor body or pieces of one, ping me there are some specific sections I'd like to fix up and patching from another car would save a ton of fabrication work. |
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| KevinP |
May 17 2019, 01:24 PM
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#39
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Member Group: Members Posts: 205 Joined: 16-November 04 From: Orlando,FL Member No.: 3,127 |
QUOTE(mb911 @ Oct 5 2018, 06:05 AM) Its what they use on the cars at Disney for the stunts show.. They rip pretty good. Don't forget those cars have been gutted and weight very little. |
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| eatpez |
Oct 7 2019, 10:28 AM
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#40
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Newbie Group: Members Posts: 18 Joined: 4-October 18 From: Michigan Member No.: 22,543 Region Association: North East States |
Update - after much too long. I'll post pictures soon. I was out for 4 months due to illness right after getting the car but I've been back at it recent and working to get the car stripped down to its bare body.
And of course, uncovering TONS of issues along the way and since my brother has been dragging his feet on working on the powertrain idea, I'm stepping back to build up the chassis/suspension first and I'll decide on powertrain later. I must say, however, I'm thinking more along the lines of a 3.0/3.2L Porsche 6 at this point if for no other reason than driveability. I'll try to get some more pictures up soon and may even start a new thread since it's really a new work in progress. |
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