Just got off the phone with Vito's. The 72mm forged pistons are back ordered. Expecting stock the first of the year.
Take care of your Big Bore
- Thread starter OConnor Racing
- Start date
Techblaster, I actually sent that guy a message some time ago about that piston. That picture is not a generic, that's the piston he's selling.
It's a replacement piston for the CT type cylinder with the single window... I'm not sure how it will work in a Vito's cylinder.
It's a replacement piston for the CT type cylinder with the single window... I'm not sure how it will work in a Vito's cylinder.
those are wossner pistons, i ran one when i bought the vitos kit...just didnt seem like the rings where as good as the weisco, wore out super fast
Apparently the wossner rings are like .75mm thickness not the 1mm wiseco makes.
If you are making blaster engine you wanted to get it up around 9k rpm's without flutter, it'd be GREAT. Any thing else they are a little weak and don't hold their tension.
How did it line up with the vito's intake windows? I actually talked to Vito's tech dept. when I was considering reviving my BBK and this was just as they had found out wiseco wasn't making any more 72mm pistons and he said that the wossner wasn't going to be able to flow what the wiseco was because the windows weren't lined up long enough.
Did it put out good power anyway?
If you are making blaster engine you wanted to get it up around 9k rpm's without flutter, it'd be GREAT. Any thing else they are a little weak and don't hold their tension.
How did it line up with the vito's intake windows? I actually talked to Vito's tech dept. when I was considering reviving my BBK and this was just as they had found out wiseco wasn't making any more 72mm pistons and he said that the wossner wasn't going to be able to flow what the wiseco was because the windows weren't lined up long enough.
Did it put out good power anyway?
yea when it was brand new and still had good compression the top end was insane, other then my bottom end jetting issues i really felt no diffrence in the top end from the wossner to the forged vitos....and yea the rings in the wossner wore out in no time, i couldnt believe how fast they wore
Like a stick of dynamite; LOTS of power but only for a short period of time...
I think without a viable Vito's option for a BBK forged piston, the wossner single window piston would have to be it and do a weekly compression check and re-ring as necessary to keep it fresh.
I think without a viable Vito's option for a BBK forged piston, the wossner single window piston would have to be it and do a weekly compression check and re-ring as necessary to keep it fresh.
Vito’s is out of all the forged big bore over size pistons also. Can anyone get me a close up pic of the alignment pins on a Wossner piston? I bet I can cut the grooves to accept Wiseco rings
Interesting concept... hybrid piston. I wonder how strong the intake skirt on the wossner is? I wonder if it can take a little carving without snapping off?
Ken, that top end you did a while back with the upside down T shaped intake window would "theoretically" work wonderfully with the wossner piston.
Ken, that top end you did a while back with the upside down T shaped intake window would "theoretically" work wonderfully with the wossner piston.
Yes it will. Screw it!! I'll order one and cut the grooves for the Wiseco if possible. I'll let you know how it works.
Helping us little guys again.Thanks Ken, I'll be looking for your results. If it works I'm in.
The piston is on the way and I have a set of rings. Coming from LA Sleeve so I wont see it till next Friday. Awk is coming to CT on Friday so we'll both be on it. I think I can use a "V" block with a stop for the top of the piston and use the pin hole to drive the piston. I'm going to have to make a very thin (.020 ) cutter blade and try to take .010 off of the bottom of the ring grooves. I'm going to try to do this without removing the pin that lines the rings up. Should be interesting. More to come next week.
