You could contact CFM and ask what they know about the difference (if any) between the Probe pistons and the FC. CR/weight/pin size/skirt/rings. They sell the probes...

http://focus.c-f-m.com/pistonsrods.aspx

 

yup, i emailed them off the site and pm'd them here.

 

pm sent

 

CFM to the RESCUE! Talk about lucky that they had one in stock lol.

 

damn. i have 3 pistons and rods sitting...

 

forgot to update this one....bought a 4th from steve already, thanks though.

 

well good thing...cause FC/probe = JUNK TRASH GARBAGE!!!!!!!!!!!!!!!!!!!!!!!!!


those things melt faster then Velveeta cheese in the microwave on a hot summer day.

 

Well, I got a full set of stock SVTs and full set of FC low CR ones...and 3 je low CR ones...gotta get a 4th from Mcnews and ill have 3 sets....aye karumba... I should just use them all and built a bunch of spare blocks .lol.

 

Yeah, I've got a used set of those I'd give you for free. Not a good design in my opinion. The valve reliefs are waaaay to close to the ring grooves.

 

Not a good design in my opinion. The valve reliefs are waaaay to close to the ring grooves.

WERD!!!!

FC/Probe piston:

Nuff said

 

^^ i will take them i have a motor and 2 of them pm me info if your serious

 

You really dont want them. They'll fall apart when you put some power to them. Destroy your block work. Maybe head. Maybe turbo.

I'll only let you have them if you promise to use them as ash trays.

 

dude i never thought of that. i may shave them down and use as coasters.

 

a specific builder made over 700hp with probe pistons! hmmmmmmm wwho says probes/ focus central are junk?

 

i dont recall ever seeing proof of that...

 

TOM would be the one.

 

Here ya go!!!

Failed after like 500 miles of mostly break-in and maybe like 12 lbs max on the dyno.

SAME spot as Tobyboom. Same spot as ADUCARAB.

 

ill take them to make ashtrays out of karl... pm me that would be sweet, the wife would be pissed!

 

Just so no one tries to use them, I would be willing to send out ONE piston to anyone who asks, free of charge.

But I want pics posted with your favorite smoke being extinguished or ashed in it.

pm me your addys!

 

Here is [highlight]another [/highlight]set we removed from a Zetec. 500 easy miles and a few dyno pulls.

They were starting to deform and fail in the identical spot. Ther just isn't enough material where the ring groove is cut in relation to the valve relief.

You can see each piston is deformed in exactly the same spot.

Side view really shows it's impending seperation from it's parent

 

sweet, pm sent

ill put it beside my ross/eagle combo that our circle track car ate

 

One piston on it's way to frgtflrcn!!!


Whew!!! Impressive work on that one, bob!!!

 

yup that was a $1200 rotating assembly gone, put down 179 WHP on a fwd 8 valve OHV cavalier though haha