Porting my Tri Z sprock Big Bore

[KingNothing]

I never really did any port work, but this seemed to turn out really well. The Z is runnin' better than ever. I am running a sprock cylender, and head with a 21cc dome. Thats right a 21cc.. Currently running a pwk 38 with a 178 main jet. What do you think?

Also had the cylender welded up..................frankin-Z I am well into the welds with my intake porting

I also widend out the exhaust port to compliment the shearer pipe
Widend out the bost port in the top of the intake..............alot..lol
Widned out the transfeers and raised them to specs

[pickleweasel_00]

looks good :) Did you add the extra boost port? And not to sound too dumb, but what kinds of gain do you see by adding the second port?

[370banshee]

just curious but what durations are you looking at to work with that shearer pipe? with such a sweet setup cylinder to start with i hope you did your homework..

[motor]

I want to know what kind of vforce3 you used in the cylinder?

[motoman1012002]

clean work you did there

[Tri-Z 250]

I want to know what kind of vforce3 you used in the cylinder?

Look to the stickey Parts that interchange Tri-Z...I'll go home tonight and look at the box and PM you part number. You can thank Mosh for finding that little gem.

[zzmegad]

v-force for the tri-z. part #v25141-z... fits 91-97 wr250z, there you go!

I found that in the shock interchange thread, although I was never able to find this on bike bandit or others, by part number or by make/model. I am interested to see what part number you have if you could post it or PM me.

[Mosh]

I found that in the shock interchange thread, although I was never able to find this on bike bandit or others, by part number or by make/model. I am interested to see what part number you have if you could post it or PM me.

That is for the VF 2 system.

The system he needs for the VF 3 series, came from a 2002-2004 year( I think was the year) KX 125, fitted with 250cc pedals. The cage fits the KX 125. There is also a sled engine that has the same cage number.
If you call V force they have the part numbers.(Actually, that is the only way you can get them, or from Sprock racing.) No one stocks the complete system for a Tri-Z except those 2 guys.
I forget the actual numbers, and don't have my notes here at work.

[motor]

I found that in the shock interchange thread, although I was never able to find this on bike bandit or others, by part number or by make/model. I am interested to see what part number you have if you could post it or PM me.

Thank you Orange for the information. I found the Vforce 3 in ebay. And thanks all for the recommendations.