Re: 500 plus cfm A460 HEADS

Lem Evans on January 22nd 2012, 1:27 pm

I.m.o. it's very much on topic...he asked about cyl. head flow but also so performance. My point[s] were/are that there is more to performance than cyl. head flow....needless to say good cyl. heads are a big part of engine performance.

Gary Blair on January 23rd 2012, 10:09 am

Mark Laczo wrote:
Lem Evans wrote:It's all about the package....sometimes a 481 cfm head will drive right by a 505 cfm head.

Thats what I'm shooting for with my 486 cfm C's, a good overall package.

Mark

Mark,
I think you will do well with that approach. I like your thinking.
Gary,

72mav on January 23rd 2012, 5:02 pm

Hi Gary,
Good top see ya here. I missed Columbus.
Regards.
Al

Gary Blair on January 23rd 2012, 5:37 pm

72mav wrote:Hi Gary,
Good top see ya here. I missed Columbus.
Regards.
Al

Hi Al,
Are you coming down for the spring show?

Barney on January 23rd 2012, 6:07 pm

All flow #s are is an indication of potential. If everything else isn't up to par with each other it's not going anywhere. Same holds true for Dyno #s. If the peak #s are high, but another engine has better average #s over a wider rpm range the second motor is gonna out accelerate it given everything else is equal, and if the car isn't set up properly then it doesn't matter if it makes a million horsepower it ain't going anywhere.

rmcomprandy on January 23rd 2012, 8:15 pm

Barney wrote:All flow #s are is an indication of potential. If everything else isn't up to par with each other it's not going anywhere. Same holds true for Dyno #s. If the peak #s are high, but another engine has better average #s over a wider rpm range the second motor is gonna out accelerate it given everything else is equal, and if the car isn't set up properly then it doesn't matter if it makes a million horsepower it ain't going anywhere.

YES ... Everybody seems to like the high winding, high horsepower of the Pro Stock type engines but, they fail to realize that you NEED their 5 speed transmission to keep it in the power band and get it down the track.
With a two or three speed trans, an engine with 200 less horsepower but, a much wider power band will match that engine in ET.

Lem Evans on January 23rd 2012, 8:23 pm

An example of not high winding horse power .

Lem Evans on January 23rd 2012, 8:45 pm

Non big rpm A460 deal.