Cams choices....????

[BlackHatch]

Damn amount of cam choices out there are dizziing. Here is what I have come up with so far.

-Stock shortblock and pistons
-Edelbrock performer RPM heads (stud mount) with 1.90 valves
-Springs are supposedly good to .575 lift with 120 (seat/installed), 320 (open/installed)
-I do not want to have to fly cut pistons at all to make room for a camshaft.


Here are the choices I am looking at so far.

TFS stage 1....221 intake/225 exhaust .312 in./.319 in. .499 in./.510 in. 112 (139)
TFS stage 2...224 intake/232 exhaust .339 in./.352 in. .542 in./.563 in. 112 (149)
Comp Cams 35-312-8...220/224 .544/.560 114lsa (239)
Crane Cams 444221...216/220 .533/.544 112lsa (179)
Crane Cams 449651...226/232 .544/.559 ?lsa (320)

Are all of these cams cut from billet steel if they are for roller applications and does that facilitate the necessity of a bronze timing gear or is that only for mechanical cams....?

Lastly, at what point in duration does the stock computer start going haywire....?


Also, what length pushrod is the stock pushrod on Mustangs. I will need to run a hardenend pushrod for my application and supposedly all of these cams have stock basecircles. What pushrods are you guys out there running with heavy springs and guideplates...?

 

[DavidF]

I cant answer everything but here is something to think about; First find out at what lift the best flow rate is on your head. That will give you an idea for the lift of your cam. Then decide at what RPM you want to make Max HP, That will help you decide what duration to go for.

 

[DavidF]

Oh Yeah, then choose a intake etc. that works at this flow and RPM range.

 

[SmockDoiley]

Your best bet is to call Comp Cams and ask them. They should point you with a good cam. Also, roller cams take a steel billet dist. gear, flat tappets take a cast iron gear, and both can take the bronze but it wears fast. If you already have a roller setup just keep the distributor how it is. As long as you have MAF, your comp should handle whatever you give it, but Speed Density gets funky at I think anything around 224 or more but I could be wrong. As for the pushrods, call Summit for the stock length because I forget off hand. You really should always check your geometry before buying a certain size even if the new heads place the rockers at the same place as the old ones. Trickflow makes a really good one piece hardened pushrod.

 

[BlackHatch]

Thanks. I am looking probably at a track heat stage one of the crane 2031 for good average power.

 

[ikillimports]

Well...i seen your post (and i in a hurry at the moment)if your looking for power go with a crane 2031...and if your not porting the exhaust on the heads u want a cam that favors the exhaust(like the crane 2031)..if u want to e-mail me my e-mail is [email protected]