TZR 3XV

[1976RD400C]

I have a 2001 SV that I used to take to track days but I got kinda old for that now. I have it tweaked out with a Penske shock ($1000), fork emulators, and a cam swap using 2nd gen cam. The thing honks but I only ride it once in a while. It's funny, the power band is so linear that right when expect it to come on the pipe, like an RD, the rev limiter turns on.

[busa1300]

The 3XV is as close to a street legal TZ as you can get. Crankcases are identical except the machining for the generator. Rods are identical, Cranks fit, cylinders fit, reed valves...intakes...transmissions and clutches...
I love my RGV's but a properly built 3XV has to be the ultimate corner carver
The head designer of the 3XV also created the 4XV...
...the first gen R1...

[pdxjim]

The 3XV is as close to a street legal TZ as you can get. Crankcases are identical except the machining for the generator. Rods are identical, Cranks fit, cylinders fit, reed valves...intakes...transmissions and clutches...
I love my RGV's but a properly built 3XV has to be the ultimate corner carver
The head designer of the 3XV also created the 4XV...
...the first gen R1...

Yes, this exactly.

4DP bits bolt right on.

[JKV45]

Finally got the insurance squared away, and rode it for about 10 miles, close to home, last night.

All good, so I rode it about 8 miles to work today.

I know it should be restricted at 50HP or so, but it sure doesn't feel like it.  Maybe my memory is blurred from 40 years since having a RD400 and RZ350, but this thing pulls really hard after 7000.  Harder than I remember the RD or RZ pulling.

It does show some signs of having engine work done at some point, but I have no idea what was done when.

It really drops into corners quickly, and feels small and super light.  My hip did cramp up last night just as I left the house, but got better after that.

So far - so good!

[busa1300]

They are 45 at the crank up to 92, then 93 up all JDM 250's were limited to 40 at the crank. They are CONSIDERABLY lighter weight than a RD400, so that helps the feel too. As well as leading edge 2 stroke chassis design... hope it keeps working for you.
My severely worn 3XV2 pulled a bit over 40hp at the tire at like 8000, and just stayed flat at 40hp to 11,000... no idea how the Japanese can keep control of the dyno curve like that.

[JKV45]

They are 45 at the crank up to 92, then 93 up all JDM 250's were limited to 40 at the crank. They are CONSIDERABLY lighter weight than a RD400, so that helps the feel too. As well as leading edge 2 stroke chassis design... hope it keeps working for you.
My severely worn 3XV2 pulled a bit over 40hp at the tire at like 8000, and just stayed flat at 40hp to 11,000... no idea how the Japanese can keep control of the dyno curve like that.

Did it flatten out and stop accelerating once it hit 8000?

Mine keeps pulling hard from about 7000 to 10,000 (as high as I've revved it) with no signs of tapering off.

Restricted or not, it does take off pretty well once it hits 7000.

Plenty of power for me.

[busa1300]

It pulled to redline no problem, so the bike kept pulling after 8000, but it is pulling as hard at 11,000 as it was at 8,000
My bike has 40-14 sprockets, which help with the close ratio trans in taking off from a stop, but also help pull redline in more gears before the speed limiter kicks in at the 180 mark.
Think powervalve opens around 7000?

[attach

Basically like this
id=26990]IMG_1004.jpeg[/attach]

[JKV45]

It pulled to redline no problem, so the bike kept pulling after 8000, but it is pulling as hard at 11,000 as it was at 8,000
My bike has 40-14 sprockets, which help with the close ratio trans in taking off from a stop, but also help pull redline in more gears before the speed limiter kicks in at the 180 mark.
Think powervalve opens around 7000?

I need to look into how the power valves are adjusted.

Thanks.


Jay

[JKV45]

I checked the powervalve adjustment last night, and they are set correctly.

I made adjustments to the cables, as they had excessive slack.