Engine theory and flame travel

Reply Subscribe

Thread Tools

Search this Thread

Jan 29, 2005 | 06:20 PM

Nate_Taufer

Thread Starter

Banned

iTrader: (1)

Joined: Nov 2004

Posts: 2,057

Likes: 0

From: North of Seattle

Engine theory and flame travel

This question pretty much pertains to all engines.

If I'm shooting for a little lower compression ratio on a blown 454, would it be more to my advantage to use a flat top cylinder with a larger cc head, or use a smaller cc head and a dish piston. How does it affect the flame travel and performance of the motor.

What are the pros and cons of each method.

I could also post this in the forced induction board if that would help.

Thanks

Nate

Jan 29, 2005 | 08:48 PM

Nate_Taufer

Thread Starter

Banned

iTrader: (1)

Joined: Nov 2004

Posts: 2,057

Likes: 0

From: North of Seattle

anyone

Jan 30, 2005 | 09:03 AM

fast98

TECH Regular

iTrader: (16)

Joined: Jun 2004

Posts: 483

Likes: 0

From: michigan

i think the small cc head and the dish piston, it will keep quench tight and it will center the flame front on the piston rather then how the cc is shaped.

Jan 30, 2005 | 10:51 AM

LSonederfull

Staging Lane

Joined: Jan 2005

Posts: 89

Likes: 0

Quote:

Originally Posted by fast98

i think the small cc head and the dish piston, it will keep quench tight and it will center the flame front on the piston rather then how the cc is shaped.

This is correct, PHR engine masters contest Ford big block won using this concept in 2003? Yes it was a N/A motor but efficient flame propagation is a common goal for either type motor.The dished piston has more square area for combustion pressure to apply itself to also.