Fly cutting pistions

I guess there is nothing wrong with starting in the 7.0 index classes.

Jones 7.0 still gonna put you in the 10.90's 1/4 mile.... not to shabby for a Tank...


Randy

the Coug wrote:Jones 7.0 still gonna put you in the 10.90's 1/4 mile.... not to shabby for a Tank...


Randy

Heck if it can't run 10.9's then it needs to stay at the house! I just sponsored a race I called "Truck Wars" and almost every truck that showed up for the event ran mid 10's. Atleast bracket raced with mid 10's, daily driven full size sbc street trucks run mid 10's, Gen II Lightnings run mid 10's. Then there is the race trucks that run 9's. Something isn't adding up! Either we have a lot of fast trucks in my area or ya'll have no faith in my build.

My local screen name is "Move" I am trying to get a local truck series going. So when I do have my truck running I might have another class to race in. (see Truck Wars) Probably just run the ODRA from now on.

What does Kieth's truck run? (Copper Head)

IDT-572 wrote:What does Kieth's truck run? (Copper Head)

I thought he ran mid 10's in the 1/4

richter69 wrote:HeRo's dont use nitrous.........

HeRo's don't need nitrous!!!

Truth is there are some door car guys here with some decent power struggling to run the 6.0's..........

a guy once said to me that you greatest strength should also be you greatest flaw... in this case perfection

I came here because I wanted to see a fly cutting pistons....



Alas...I leave disappointed........

Sorry to disappoint ya!

Do you care to share on what you believe the minummum material thickness you need bellow the valve relief?

Why do people call it fly cut? I want to called them notched, milled?? Fly cut makes me think of a cylinder head or block decking.

It's probably called "fly cutting" because before specialized cutters were made, people used a fly cutter in a milling machine.

jones wrote:Do you care to share on what you believe the minimum material thickness you need below the valve relief?

Over a broad area .150. I've done them as thin as .060 in a small spot where it get thick very quickly.

I'm assuming N/A.

4.400" Probe SCJ pistons with Super Fly cut installed.

Thanks, Mark!

Lem, thanks for the picture. Surprised to see how far in the valve sits from the cylinder wall. Doesn't apear as likely to cause a hot spot.

Vavle off the cyl. wall is good for flow too.

Lem Evans wrote:Vavle off the cyl. wall is good for flow too.

....pretty "fly"............for a white guy................

A+ SuPeR fLy .

triple fly ......my old deal

bruno wrote:triple fly ......my old deal

What is that giant notch for? Looks like the pistons was used in another engine then turned down to fit into your engine. Looks like you had to have the block notched for that valve.

here are some better pics

there was no notching on the block Josh ..... Lem had looked at these pics i believe before and i cant remeber what he said ........

Weird , crude , too big would be words for that intake relief.

waste of potential compression......

The block was decked on that deal also

That big notch was a screw up.....................