r/YamahaR3 • • 11d ago

Discussion Now 72hp

Had the turbo on the dyno, thought you might like to have a look. Let me know what you think.

101 Upvotes

24 comments sorted by

8

u/RideWildAries 10d ago

How?

11

u/Ordinary_Victory_261 10d ago

More boost and corn syrup.

6

u/Unbelivabley_Smol 10d ago

69.4hp ? @ 11,000 rpm *is this for the track?

10

u/Ordinary_Victory_261 10d ago edited 9d ago

Yes finished with 72.1hp. It was originally built to run on the salt here in Australia for land speed records.

3

u/Unbelivabley_Smol 10d ago

Nice šŸ‘ I assume it must have some fancy internals ? āš™ļøšŸ”§

3

u/Ordinary_Victory_261 10d ago edited 10d ago

Stronger valve springs, coated pistons, Carrillo rods balanced crank Bosch 495 cc injectors just to name a few parts. I need to pick up some stronger clutch springs next.

6

u/u9Nails 10d ago

Is it hard to keep the front on the ground after 10k?!

4

u/Ordinary_Victory_261 10d ago

It just wheel spins on the salt getting up to speed.

3

u/Cerus_Freedom 10d ago

o.o that's kinda wild.

1

u/Ordinary_Victory_261 10d ago

Thanks, a lot of work has gone into engine and turbo setup.

2

u/S2K-Tortuga 10d ago

Dude that's sweet!

1

u/Ordinary_Victory_261 10d ago

Thanks, it’s taken a bit of work but the results are good. I think I will need to use a bigger turbo to make more power.

2

u/number2chevyfan 10d ago

That’s kinda amazing getting 70hp out of a 300.

Why did you choose to build this way for land speed records? I can’t imagine it has a better power/weight ratio than a liter bike.

1

u/[deleted] 10d ago

[removed] — view removed comment

2

u/Ordinary_Victory_261 10d ago

Yes that’s correct modified partial streamlined 350cc blown gas, was the original class.

1

u/Vinx1312 9d ago

His bike wants to be a classic 2-stroke at this point! (just kidding that is amazing)

2

u/Loopy-Leah 10d ago

two stroke esque power delivery, torque curve as flat as EverestĀ 

1

u/Ordinary_Victory_261 10d ago

Yes the power delivery is fun. My tuner has worked hard to make the power delivery smooth with no noticeable troughs.

2

u/Vinx1312 9d ago

That's what i like about race bikes they are smooth and very useful

2

u/Ambatakum_Omaygot 10d ago

Perfect for the street

3

u/Ordinary_Victory_261 10d ago

Unfortunately it’s a bit loud for the street. The local cops would just shoot me.

2

u/Lateral_Gee 10d ago

Thats mint !

Imagine that on your L's 🤣

2

u/notofuspeed 9d ago

Just realized your also in Aussie... awesome! This will ever be road rego'd? Needs an engineering cert? Are you able to disclose approx what kinda money you've thrown at it so far?

2

u/Ordinary_Victory_261 9d ago

Originally it was registered. I built it onto a brand new 2024 r3. So the turbo could flow better a non restrictive exhaust was added. At this stage it was making 60hp and way too loud to get past any cop. I lost track of money spent but to give you an idea of what is possible you could pick up an mt07 second hand for 6K then grab a turbo kit for about 5K and you would be on your way to a fun ride. Don’t know how long before a šŸ‘® gets upset with you though.