MNSBR: Fz 07 Race Bike Build - MNSBR

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Fz 07 Race Bike Build transforming a naked street bike into a track/race tool

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Posted 13 January 2020 - 06:35 AM

My rebuild parts for the old Brembo P32/34 caliper showed up so I was able to get that taken care of. The Spiegler line I had on the rear happened to fit when I flipped it end for end and swapped the bleeder and the banjo bolts around to get length and dangles right. The new system hangs beneath the axle. This skeletonized rotor is kinda cool too.
Attached Image: IMG_20200112_142906.jpg
I fitted up the seat too. Of course somehow I managed to mess up the alignment a smidge, paint lines on tank cover and seat aren't perfect, grr.
Attached Image: IMG_20200112_145726.jpg
I heard Kramer built a motorcycle? I wonder if they're any good? Nah. I don't have much left of what I bought from Yamaha, lol. Fork tubes, half the frame, motor cases and swingarm.
Attached Image: IMG_20200102_112138.jpg
I got some glass work started on the backup fairings. They should look nice when painted.
Attached Image: IMG_20200112_145803.jpg
I discovered that Suzuki con rods make just enough power to open dos equis bottles
Attached Image: IMG_20200104_195442453_HDR.jpg
Most importantly I got 2 new chilli variations tested for next year's defense of the world championship of chilli!
Attached Image: IMG_20200105_174142.jpg
2020 world domination on and off track.
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Posted 13 January 2020 - 09:55 AM

BLR off-season in full force!
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Posted 13 January 2020 - 05:12 PM

View PostPOE, on 13 January 2020 - 09:55 AM, said:

BLR off-season in full force!


Coming down outta the hills for the IMS to start some shit too.
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Posted 15 January 2020 - 07:18 AM

Shit you are going hard this off season!

What day(s) are you hitting the IMS?
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Posted 15 January 2020 - 11:53 AM

View PostChamp, on 15 January 2020 - 07:18 AM, said:

Shit you are going hard this off season!

What day(s) are you hitting the IMS?

Saturday noonish.
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Posted 20 January 2020 - 12:36 PM

Just started building V2 for another racer. Stay tuned for more.
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Posted 09 February 2020 - 02:46 PM

Spent 10 days crawling around the planet Dagobah with a fever, suffering from disease and pestilence but finally got some shit done in the shop. Flipped a Honda scooter project for a couple hondo and got the motors swapped in the race bike.

Ready
Attached Image: IMG_20200209_135025.jpg

One out,
Attached Image: IMG_20200209_135232.jpg

One in,
Attached Image: IMG_20200209_134937.jpg

Now to hunt us some Suzuki meat and lay waste to those mid-pack MotoAmerica Twins Cup foo's...haha.
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Posted 27 February 2020 - 08:10 PM

On an aside, work has slowed on my bike but this showed up in the shop,Attached Image: 18775-MMS-1550967334419-attachment1-2019022395181053.jpg
Then this happened,
Attached Image: IMG_20200224_194857.jpg
And the motor lost it's head,
Attached Image: IMG_20200222_115955.jpg
And a bunch of this crap showed up,
Attached Image: IMG_20200224_195132.jpg
Attached Image: IMG_20200225_204056.jpg
Attached Image: IMG_20200226_221701.jpg
When stuff from Robem Engineering, Trackside Labs and TWF Racing gets here we'll have us a little build party. This one was ordered like mine 'but with any upgrades or changes I'd make after 4 years flogging it, minus wheels (which he has)'. Then it will get delivered to a CCS/WERA/MotoAmerica Twins Cup racer as his second mistress.

Lightweight bestweight

Today's shenanigans,
Attached Image: IMG_20200229_175356.jpg
Attached Image: IMG_20200229_140516.jpg
Cutting down the battery and airbox to race spec,
Attached Image: IMG_20200229_135140.jpg
Attached Image: IMG_20200229_135115.jpg
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Posted 28 February 2020 - 10:47 AM

So are you becoming a bike builder now in your retirement?!
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Posted 28 February 2020 - 12:22 PM

View PostChamp, on 28 February 2020 - 10:47 AM, said:

So are you becoming a bike builder now in your retirement?!


Please direct all inquiries to our public relations department.


No.
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Posted 29 February 2020 - 11:12 PM

View Postre tired, on 28 February 2020 - 12:22 PM, said:

Please direct all inquiries to our public relations department.


No.


I think you meant sales. I heard your prices were very reasonable and you deliver.
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Posted 08 March 2020 - 04:17 PM

Working on both bikes for spring I suppose it's time to reveal the airbox specifics. It was developed on mine thru several dozen pulls and airbox mods/versions and is now being used on V2. This is the version that beat all comers on the dyno. It has a nice ridable torque curve, sustains high flow for a modified engine with cams, bored throttle bodies and ported head and sustains that air flow 2000rpm longer than the stocker. It moves peak power up as well so is a poor choice for use on the street or on stock motors. Pulls are posted earlier in this thread.
Attached Image: IMG_20200306_153538.jpg
Attached Image: IMG_20200307_180836.jpg
Attached Image: IMG_20200307_180946.jpg
I removed the intake runners from the front of the airbox. Then removed a double section of runner with a sharp knife, about 2 1/2". Then the ends are carefully glued back together, Super Glue works nicely and has held up to 3 years of in and out on mine. They are then reinstalled into the airbox after being trim fit to allow quick r&r of the airbox or throttle bodies trackside as the stock box is a sommabitch to get in and out. The airbox is normally run with the cover and filter removed, just the shortened rubber intake runners inside the box. Power drops slightly when a high-flow filter and modded cover is added.

I realize this isn't super science as shorter runners generally support higher rpm power but I wanted to have the data to back it up. I wasn't happy with 'because some guy, some place, at some time said so'. An engineer acquantence did the fluid Dynamics modelling on the airbox and proved it was damn close to perfect in flow charcteristics and volume for a parallel twin of this size (who knew Yamaha knew anything). The stock restrictor plate/cover keeps mid-range up and did limit high rpm power but once removed and the engine modified to match it literally came alive. After extensive work in the shop and on the dyno and on track we have the data to support it.

This makes a shade less peak power than velocity stacks but has better throttle response and mid-range and complies with 'airbox rules'.
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Posted 13 March 2020 - 05:45 AM

Here's the finished box,
Attached Image: IMG_20200312_204122.jpg
Attached Image: IMG_20200312_204108.jpg
Attached Image: IMG_20200312_204032.jpg
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Posted 04 April 2020 - 06:07 PM

Mine is ready to go,
Attached Image: IMG_20200215_093237.jpg
but with a bunch of my build stuff locked up in various businesses across the country due to Covid 19, progress has slowed on V2r. I was able to get my ECU mirrored onto the second ECU and put a PC5 in her too.

Got some coolness from Brandon @ Trackside Labs.
Attached Image: 1586025405378_IMG_20200330_203438.jpg

Did get some Robem Engineering custom tripples, aluminum stem and rear set plates.
Attached Image: IMG_20200325_165331.jpg

Got the forks mocked up and started on the controls and some udder random shit.
Attached Image: IMG_20200403_185501.jpg
Attached Image: IMG_20200404_151235.jpg
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Posted Today, 04:37 AM

Thoughts on these guys

http://www.fz07r.com/merch
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