Cam for a 406?

[dogsht]

IMO If both the 245HP 350 & 400 were optimally geared to take full advantage of their torque and HP the 400 would win. The fact that the 350 makes its HP at a higher rpm is more than offset by the fact that it makes less torque at lower rpms. In fact if they made the same HP and torque just at a slightly different rpm range each geared optimally for their power range they should cross the eyes at the same time.

 

[Smokes442]

If an engine makes more torque at any given rpm than another engine it will also have more horsepower. Therefore you could word it as it's not horsepower that pulls you at the top end, it's just having a more torque at that rpm range. There really isnt any reason to get too caught up in a number that can't be measured. Especially when you have too many variables from one dyno to another, and different correction factors. No one uses a dyno to tell how fast they will be.

Thanks for clearing that up in lamens terms :wink: .

 

[Smokes442]

IMO If both the 245HP 350 & 400 were optimally geared to take full advantage of their torque and HP the 400 would win. The fact that the 350 makes its HP at a higher rpm is more than offset by the fact that it makes less torque at lower rpms. In fact if they made the same HP and torque just at a slightly different rpm range each geared optimally for their power range they should cross the eyes at the same time.

Ths is true, but why would anyone want to do that, We had a 73 454 chevy 3/4 ton camper special pickup, The engine wasn't rated high in HP because they went to Net #s, But you talk about power, it was the torque that did that, not the HP. I like torque 8)

 

[dogsht]

Yea I have never understood some peoples fascination with rpm. If two power plants made the same power but one made its power from 4,000 to 7,000 rpms and the other made it from 2,000 to 5,000 which would you choose?.. For me depends, on a particular track or event the higher rpms may be more advantageous. On the street however where you are typically dealing with a heavier vehicle and longevity becomes more important as well as fuel choice gearing converter etc you would almost always prefer the one that made the power at a lower rpm. Its been said rpm stands for ruins people motors. As rpm goes up wear and stress go up exponentially. I am not a know it all and I am not sharing anything some of you don't already know but there are lots who read this forum who have no handle on this what so ever yet so I share it for there benefit.

 

[OneLuv1979]

My dad has a tubbed out 41 ford with a stock 400sbc t-350 , victor jr intake and 750cfm Holly Carb ...
Car weights 2200lbs and he pulls off a high 12's... I have a 406 pontiac in my regal 041 cam and it makes 428hp & 437tq
My regal will be going to the track tonight on Radials (so not expecting to much)

Anyhow My Name is CHUCK and I LIKE TO PARTY!!! WOO HOOO