Opinions on this cam 238/244@.050 540" solid

[70sixpkrt]

I am thinking about doing a cam upgrade and was talking to Scott Brown at Straightline and he recommended this: 238/244@.050 540" solid with 110 lobe sep. How would this cam be on the street? Would this cam work with my combo?

440 .030 over
Eagle rods
KB237 pistons
deck height .003
Eddy heads with stage 1 port and bowl blend
Aluminum 6 pack manifold with vacuum carbs.
4 speed
Dana 60 with 3:54

[i c e b l u e]

thats quite a bit of cam in my opinion for the street that is. I like the fact that its a dual pattern and since its mechanical the lash will eat up some lift and the rest the eddies can handle. But the 238, 244 duration is kind of steep for a street driver with only 446 cubes. My cam has a 232, 238 duration and I am glad I didn't go any bigger. I have 12" of vacume at idle, and it has a very lumpy idle to it.

[firefighter3931]

thats quite a bit of cam in my opinion for the street that is. I like the fact that its a dual pattern and since its mechanical the lash will eat up some lift and the rest the eddies can handle. But the 238, 244 duration is kind of steep for a street driver with only 446 cubes. My cam has a 232, 238 duration and I am glad I didn't go any bigger. I have 12" of vacume at idle, and it has a very lumpy idle to it.

That's a baby cam  The stick in my 446 is 264@.050  BB mopars like lots of duration.  The comp xs282s is what i would go with in a build like yours. Here's a good thread on e-head 446 cam selection.

http://www.dodgecharger.com/forum/index.php/topic,6000.msg69751/topicseen.html#msg69751




Ron

[Chryco Psycho]

I posted in the other thread , looks like a good grind to me

[firefighter3931]

I posted in the other thread , looks like a good grind to me

Agreed....it does look like a good grind....but is it the best grind for this build ?

After seeing mine and others on the pump i'm more convinced that 440's with good breathing heads luv duration. 

That 238* cam will be closer to 233* after lash is factored in....seems a bit small, no ? The xs282s is 244*@.050 so it'll be 239* after lash giving it a similar powerband to the MP 484 hydraulic. Actually it will pull harder down low & up top then the 484 and idle cleaner. 

It really depends on what Don is looking for out of this engine and what the performance goals are for the car....



Ron

[70sixpkrt]

The performance goal is to run low to mid 12s. I also don't want to hurt any street reliability since I am running the aluminum 6 pack manifold and 3:54 in my Dana. I am currently using a Hughes 3038 hydraulic cam(230/238@.050 515/536 lift.) Since I just purchased the Eddy heads, I might as well get alittle more umph from a cam swap.

[471_Magnum]

I run a similar cam in my e-headed 471 (a Hughes HEH3746). In my single four barrel application, it's plenty streetable but it will have a serious idle lope. I run A/C and power brakes. It will get you into the twelves.

I ran 3.55s initially, but have since switched to 4.10s (w/ OD).

Kiss those BFG T/As goodbye. They don't stand a chance.

[70sixpkrt]

I am keeping the 3:54 because I like driving this thing on the freeway. I will end up getting some MT Et streets or radials.

[471_Magnum]

Oops... after re-reading, I see we are talking about a solid cam.  Mine is hydraulic.

[Chryco Psycho]

the other cam I use a lot is a Lunati
251 duration , .570 lift with 108* CL , it has as similar power band & shoudl work better for hitting 12second  range

[70sixpkrt]

Don't you think a 570" lift might be too much for the street?

[firefighter3931]

The performance goal is to run low to mid 12s. I also don't want to hurt any street reliability since I am running the aluminum 6 pack manifold and 3:54 in my Dana. I am currently using a Hughes 3038 hydraulic cam(230/238@.050 515/536 lift.) Since I just purchased the Eddy heads, I might as well get alittle more umph from a cam swap.

That hughes cam is a pretty descent stick....you should be able to run mid 12's with just the e-head swap. 

The Comp will have you in the 11's, no problemo    Runner has that cam in his car and et's in the 11.30's on pump gas with a 451 lowdeck


Ron

[SeattleCharger]

  What kind of horsepower are you guys talking about here?    low 12's?   is it the heads making such a difference? 

[firefighter3931]

  What kind of horsepower are you guys talking about here?    low 12's?   is it the heads making such a difference? 

Low 12's will take a legitimate 475hp at the crank to run the number. Of course you need the other goodies : stall speed, suspension tuning and good tires. The heads make a huge difference....the more air & fuel you put through the engine, the more power it makes. Simple as that....


Ron

[Chryco Psycho]

I have used .570 lift on the street before many times with lash it will be closer to .550 at the valve & with the right springs will be fine