Haybusa Parts and Service Member Support

Author Topic: Busa project  (Read 1159 times)

Offline zrxdean

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Busa project
« on: April 30, 2019, 01:15:42 PM »
The May El Mirage meet was cancelled, so Iíve had a little extra garage time on my hands. This past weekend I saw an ad for a Busa roller, and couldnít resist. If Iím going to drive all the way to California with the ZX10, I might as well have 2 naked bikes to race, right? It even came with a sidewinder header.  I'm thinking alcohol and wet nitrous, like the ZX10.

So, I'm in the market for an engine. I still have Karl's Gen 1 ECU, reflashed by the late great DaveO. Or I could spring for a Gen 2 and get the extra displacement. Any suggestions?

thanks,
Dean




Offline firemanjim

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Re: Busa project
« Reply #1 on: May 01, 2019, 11:31:15 PM »
Can always add a Gen 2 crank to get extra inches, Gen 1 rods are stronger--bigger pins. Bummer about the may meet!
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Offline zrxdean

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Re: Busa project
« Reply #2 on: May 02, 2019, 07:37:07 AM »
I didn't know that Jim, thanks. That makes the choice easier.

I've been watching eBay, and intact Gen 1 engines are selling for 1500-2000, does that sound right to you?

I'm hoping the June meet will be 2 days, it's a long drive.


Offline zrxdean

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Re: Busa project
« Reply #3 on: May 06, 2019, 08:40:27 AM »
Found a virgin 2002 engine for a good price. Needs a valvejob, but there's no road rash, and I don't think it's ever been apart. Even came with a Yoshimura header.

Now to get pistons and cams. I'm learning all sorts of stuff about Busa basics :)

Offline firemanjim

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Re: Busa project
« Reply #4 on: May 07, 2019, 12:45:16 AM »
Valve job, or just a good lapping? Most times that is all, esp with not a ton of miles.

Just saw the lakebed is closed again----
« Last Edit: May 07, 2019, 12:47:27 AM by firemanjim »
Official Site Tuner
www.jtsperformance.com
Home of one of the fastest 750cc bikes in the world
239MPH faired, 209MPH naked!
Bonneville 200 Club
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Mojave Magnum 200 Club
NEDRA 100 MPH Club
Gairdner 200MPH Achiever 2013
2014 1st place Mojave Mile N/A bike
2015 top speed trophy at WOS
Colorado mile 200 MPH club
2017 DLRA 200 MPH club
2018 Shift Sector 200 MPH Club

Offline zrxdean

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Re: Busa project
« Reply #5 on: May 07, 2019, 07:45:12 AM »
There's a fair bit of rust on the valves, engine has been sitting for a while. The engine is said to have 13K miles.

With stock bore pistons, I wonder how much compression I would need to make 400/380 cams work? Someday the engine might grow, I'd rather get the biggest cams I can swing now, these things are pricey.

Offline zrxdean

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Re: Busa project
« Reply #6 on: May 07, 2019, 02:14:27 PM »
Never mind, I think I will go with 2 intake cams, drop in pistons and some port cleanup.


Offline firemanjim

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Re: Busa project
« Reply #7 on: May 07, 2019, 02:27:53 PM »
Cometic thin head gasket, and Gen 2 cams have more lift/duration than Gen 1,
Official Site Tuner
www.jtsperformance.com
Home of one of the fastest 750cc bikes in the world
239MPH faired, 209MPH naked!
Bonneville 200 Club
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NEDRA 100 MPH Club
Gairdner 200MPH Achiever 2013
2014 1st place Mojave Mile N/A bike
2015 top speed trophy at WOS
Colorado mile 200 MPH club
2017 DLRA 200 MPH club
2018 Shift Sector 200 MPH Club

Online KZScott

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Re: Busa project
« Reply #8 on: May 07, 2019, 08:28:05 PM »
we have built several 600+ hp gen 2s with the 18mm pins
01 ZX-12R 8.84 @ 156.3 on dot tires, pump gas, NO power adders.... turbo 8.47 @ 164
00 ZX-12R 8.62 @ 165.2 no bars, slicks, Pump Gas, 55 shot... turbo 8.32 @ 173
00 ZX-12R  1: 222.046 1.5: 226.390 Loring AFB Worlds Fastest NA Kawasaki
00 ZX-12R street turbo 1: 227.9 1.5: 234.1 Loring AFB
00 ZX-12R LSR turbo 1: 263.1  1.5: 266.5 Loring AFB Worlds fastest ZX-12R
Fabricator/Engine builder @ RCC Turbos

Offline zrxdean

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Re: Busa project
« Reply #9 on: May 07, 2019, 08:32:07 PM »
Jim, once again I thank you. Just bought a $50 Gen 2 ex cam.

Hey Scott, thx. For spray Iíll take all the (oem, cheap) rod strength I can find.

Offline Oz Booster

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Re: Busa project
« Reply #10 on: May 08, 2019, 03:43:00 PM »
Dean get the inlet too unless you plan bigger
gen 2 when it came out was essentially the common mods guys were doing to gen 1's
stg 1 cams, longer stroke, lighter valve springs and Ti valves ,
any of this stuff will help a low $ build
maybe use the gen 1 springs on the Ti valves for the Nos
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Offline zrxdean

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Re: Busa project
« Reply #11 on: May 09, 2019, 07:32:25 AM »
Thanks Greg, for now I'm going to try the Gen 1 intake and Gen 2 exhaust. I think this will give me around 106/109 lobe centers with the OEM cam sprockets, but I will check.

Offline zrxdean

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Re: Busa project
« Reply #12 on: May 23, 2019, 11:30:05 AM »
I cleaned up the chassis, replaced the head bearing, refreshed the damper, mounted a GSXR1000 rear wheel, front and rear brakes, dog bones. I had the short kickstand, lowered fork, clip ons and rearsets from Greenie. I have an external Walbro pump, regulator and fuel cell that will go on next.

I ordered ARP studs, but after a week Jegs tells me it will be another month, argh.


Offline firemanjim

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Re: Busa project
« Reply #13 on: May 23, 2019, 12:13:22 PM »
did you try calling ARP?
 And got caught out with those rearsets at BMST as FIM does not allow pegs that do not fold, not sure about everyone else as they were on Dave Scott's new bike.
« Last Edit: May 23, 2019, 12:15:29 PM by firemanjim »
Official Site Tuner
www.jtsperformance.com
Home of one of the fastest 750cc bikes in the world
239MPH faired, 209MPH naked!
Bonneville 200 Club
El Mirage 200 Club
Mojave Mile 200 Club
Mojave Magnum 200 Club
NEDRA 100 MPH Club
Gairdner 200MPH Achiever 2013
2014 1st place Mojave Mile N/A bike
2015 top speed trophy at WOS
Colorado mile 200 MPH club
2017 DLRA 200 MPH club
2018 Shift Sector 200 MPH Club

Offline zrxdean

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Re: Busa project
« Reply #14 on: May 23, 2019, 12:43:42 PM »
Nothing in the SCTA book about folding pegs thankfully. Thanks Jim.

I haven't called ARP, but they list for $290, while Jegs wants 180. I may cancel and call around, but I'm in no huge hurry.

I see the lakebed is closed this weekend, I hope things dry out soon...

Offline firemanjim

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Re: Busa project
« Reply #15 on: May 23, 2019, 02:17:35 PM »
I was watching the weather last night and looked like Socal area got hammered, June maybe a no go as well, crap.
\
Official Site Tuner
www.jtsperformance.com
Home of one of the fastest 750cc bikes in the world
239MPH faired, 209MPH naked!
Bonneville 200 Club
El Mirage 200 Club
Mojave Mile 200 Club
Mojave Magnum 200 Club
NEDRA 100 MPH Club
Gairdner 200MPH Achiever 2013
2014 1st place Mojave Mile N/A bike
2015 top speed trophy at WOS
Colorado mile 200 MPH club
2017 DLRA 200 MPH club
2018 Shift Sector 200 MPH Club

Offline zrxdean

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Re: Busa project
« Reply #16 on: May 23, 2019, 03:10:03 PM »
No rain yet, fingers crossed.    https://www.wrh.noaa.gov/mesowest/getobext.php?wfo=sgx&sid=EMRC1&num=48

I found a shop with the studs on hand, should be here next week.