[Hordboy]

I bought a FZ-07 last July to mess around with and have dyno tested a lot of performance mods. Here is a link to the charts and brief descriptions of what I did. So far I've had some really positive results.

Yamaha FZ-07

 

[The Mustang]

Your gains look pretty impressive to me. What was the overall cost of the mods you put into it?

 

[Hordboy]

Let's just say over $100/hp.

 

[The Mustang]

Let's just say over $100/hp.

That's just about what we've been figuring for twenty or so years now. As it get's harder and harder to get any gains, the costs of the equipment to get the gains gets a little higher. I remember a Kawasaki 650 I had, it was a "75" and I put an RC giant killer kit in it which consisted of high compression and larger pistons ( knocked it out to about 735 CC) and it also came with high lift cams. I think the kit was about $350 back then and I had to have the cylinders bored which I think was about $30 a hole or something like that. It might have given me another 15 H.P. at best and it never did run overall as well as the stock setup did. I think I also put a K&N jet kit in it too. From then on it got more expensive but more sophisticated until I just decided to keep them stock and buy more stock power and be done with it.

 

[Hordboy]

Compared to some other engines I build, the FZ's gains so far were relatively easy. It's a bit detuned as delivered, which is what you'd expect for this class of motorcycle. It's nice to know, however, that some pretty good power can be had without ruining the delivery. Basically this was an exercise in "how will minimal modifications stack up to other engines it might have to compete against?" Very well, thank you. It's a neat engine.

 

[Hordboy]

Bone stock vs. current spec. Current spec is ported head, custom intake cam, Wiseco high comp pistons, throttle body mods, different airbox, Yosh exhaust, Dynojet PCV, and LOTS of tuning. Both of the runs shown were on 87 pump. When I put in VP MR12, it makes 92hp...

 

[C. Dolan]

This idea of hp mods is calling to me.

Would like to do for the upcoming spring / summer.

Already have the suspension and handling sorted.

Penske rear shock and 1 inch fork cap extensions added since this picture was taken.

Closest contender in the stable is a 2015 KTM 690 Duke, with a 2016 coming this month.

 

[Alexandros_g]

Impressive job Hordboy! Can you share some details of the airbox mod? Did you use aftermarket stacks or simply air filter?
I got rid of my airbox on one of my previous bikes (cbr 125) and it made a huge difference, so I'm thinking of trying it on my mt-07.

 

[mark.a.j]

hordboy...i find your tuning excellent.....i am not going that far with mine....mech advised me not to tune to much...might wear the motor out
so far I have the DNA sport filter+open airbox cover..SC Project full exhaust with db killer no catalyst and a AFM controller
April my yama dealer is going to do the dyno run...he'll be then doing the ECU flash all restrictions out...and will be mapping with PC
they are in the test phase at the moment....because they are going to try and integrate the PC mapping into the ECU flash...which saves us money...of cause only the map the bike needs depending on the bikes exhaust and mods
here the dyno run alone would cost around 300€ and The PCV around 400€ and The ECU flash around 300€....i am then when do hopefully goin to get around 76-78 bhp on the back wheel and have a much better torque in the bottom to middle rev range

 

[rider1]

i don't know if I'd call those modest mods my brother. Nice results though !!

Bone stock vs. current spec. Current spec is ported head, custom intake cam, Wiseco high comp pistons, throttle body mods, different airbox, Yosh exhaust, Dynojet PCV, and LOTS of tuning. Both of the runs shown were on 87 pump. When I put in VP MR12, it makes 92hp...

 

[rider1]

I liked the bike better when the wheels were black.... and you were kicking A !!!
------------------------------------------------------------------------------------------------------------------

This idea of hp mods is calling to me.

Would like to do for the upcoming spring / summer.

Already have the suspension and handling sorted.

Penske rear shock and 1 inch fork cap extensions added since this picture was taken.

Closest contender in the stable is a 2015 KTM 690 Duke, with a 2016 coming this month.

 

[C. Dolan]

I liked the bike better when the wheels were black.... and you were kicking A !!!
------------------------------------------------------------------------------------------------------------------

Still kicks with the white wheels.

 

[versysrider]

@ Hordboy

You drop a dyno read-out like that on us, with virtually no info on how you got there? How about helping us all out with detailed info, and parts list.

Great job with the mods.

 

[versysrider]

@ C. Dolan

Chris: That's cool your getting the '16 Duke, I hear it's very well sorted now with little in the way of vibration. Too bad we don't get the "R" here, although I'm sure you'll do some awesome suspension mods on it.

If you do get into the engine of the FZ-07 please do a detailed report with lots of pics, I know you are a detail oriented guy.

 

[mark.a.j]

You drop a dyno read-out like that on us, with virtually no info on how you got there? How about helping us all out with detailed info, and parts list.

Great job with the mods.

hi sorry don't come into this side much,with livin in Germany,I'm in the German forum more
as to the ECU flash,ain't done yet,have to check up on the yama dealer if he's been able to get the power commander map into the ECU,because it is taking time,I have mean while done and finish a few mods
now have a jack up link in the back,with a YSS shock,front forks,I've taken apart and replaced,the insides with a TRAXXION DYNAMICS rod and spring kit,this I ordered from USA,the spacer is longer the rod same size but with bigger holes in it the spring is shorter,and the top of the rods have RaceTech emulators on the,whole kit was set up for my weight and riding style
also bought a ERMAX under body tray with tail tidy and a cover for the back seat,....once the ECU flash is done will def post the results oh yeah and twin lights at the front

 

[versysrider]

@ mark.a.j

Your mods are great too, but I was referring to "Hordboy's" dyno read-out. I mean 88.55 rear wheel hp. and no details on what he did to get that number. We need details.

 

[Hordboy]

Details are listed under the dyno chart above, and if you follow the link in the first post you will see some step-by-step mods along the way.

 

[versysrider]

Details are listed under the dyno chart above, and if you follow the link in the first post you will see some step-by-step mods along the way.

Thanks, I didn't realize that was a link.

Ok, now I get it, why didn't you just say you were putting a kit or kits together depending on how much power you want, or how much you want to spend. That would be FANTASTIC, and I don't even own an FZ-07 yet, but am planning on adding one to the stable.

It looks like you got 80 hp and 50 ft lbs of torque without opening up the engine, and big gains all through the mid-range. Correct? If that's the case I think Most FZ-07 owners would be THRILLED to be able to buy that kit. I know I would.

Will there be a kit out soon? Please keep us informed.

Again, awesome work!

Thanks, Dave

 

[Taipei Ryan]

So I got to ask, after getting to the 90Hp range with good gas what 0-60 times are you putting down? Also what is the new top speed? Did you gear up 1 front sprocket tooth with all that new power? Hoping to see a Youtube Video link in this forum of this beast!

 

[tommy dale]

Hordboy Thanks for dyno charts. I was noticing GT Hawk vs FZ07. Got quit a few bikes just cannot get rid of old Hawk, so easy to work on sprocket changes for gearing, ease of either wheels removal for tire changing, I digress. Anyway I don't know the bikes history, but it has air filter top removed with clean K&N filter, full FMF exhaust and jetted perfect. My riding friend just got a FZ07, we removed air snorkel and put in K&N. My point is up to about 65-70 my Hawk can pull his FZ07 and we have changed bikes and done many drag runs. The hawk has evidence of a different front end on it at some time and it has a progressive shock with a lot of number engraving and someone's initial's. P.S. I am running stock gearing just now and bike has 39,000 miles. I think this motor has been massaged, any opinion?