SideStep

Looking for cam spec recommendations....

I have found several posts asking/commenting about 427 cams... many have as much 12 degrees difference between the intake and exhaust... What is the general consensus for a street only TQ monster...??? (Assuming small runner heads, AFR205s...)

Thanks in advance for any help...

11 Bravo

iTrader: (3)

Well I run a 244/250 and make 450rwtq by 3500rpm. And that was a dyno before the motor was even broke in. Running much stronger now, breaking the tires loose in 3rd gear at 1/2 throttle. TEA stage 3 6.0's, btw.

ArrestMeRed99Z28

iTrader: (1)

Why only 205s? You can get very good torque out of a larger Runner. Patrick G is using 225s on a 346 and he has GREAT torque. The split is really dependent on how well the exhaust port flows in relation to the intake port.
Figure out your entire set up, and have some one custom design a camshaft for your specific needs.
Good Luck with your set up
AJ

SideStep

Thanks for the reply, looking for something a little more commuter, AC, XM-Radio, stop and go friendly... Trying for more TQ than HP...

Lets say around 14 - 15" of vacuum at idle or better, (no 1100 rpm idles, please)...

SideStep

Actually I had better TQ down-low than Pat had, with my 226/230 cam/AFR205s, (Pat help me design it for my needs back then... ).

Many have recommended for a street only TQ beast to stay with the 205s...

The Katech 229/229 has shown good results but many others are running much larger splits, and of course no one is spilling the beans yet on the best science. Then again, maybe there are no beans to be spilled yet. Maybe everyone is still in the experimentation phase for the 427s... With 427 prices coming down, hopefully, will see more specs and feed-back on different combos...

Ferocity02

iTrader: (60)

I had 18 degrees of split on mine, only because I was using LS7 heads which have an intake port thats flows much better in relation to the exhaust port. If the flow on the head ports was more equal, I would have used far less split. For reference, the Katech LS7 torquer cam has 24 degrees of split, 220/244.

11 Bravo

iTrader: (3)

Mine idles at 950, has never died even with the a/c on, and does not surge at all. I can drive in first gear at 10mph smooth as can be. It's about as stop and go friendly as you can get unless you're wanting a cam that has no lope. And that has nothing to do with drivablity. If you are wanting more torque than I have then it will be a waste of power unless you run slicks lol. You ain't gonna hook up on the street.

Ferocity02

iTrader: (60)

On the topic of idle, mine could idle at 650rpm all day with some niiiiiice lope.

chino_man279

iTrader: (7)

With having a small runner head on a large cubic inch motor and wanting a torque monster, i.e. probably shifting by 6000 or 6100 or so, I would go with a equal duration or a slight reverse split on it. A 230/226 112 +2 would probably make a very nice cam in a completely stock like 427. The larger lobe on the intake will help fill the relatively large cylinder. Would come off of idle like crazy and start to run out of breath in the 6000 range, not quite ideal for the FAST intake, but with a 427 down low torque would be crazy. You could let just about anyone drive it and it would act like stock until the pedal was squeezed.

Jeremiah

iTrader: (5)

Im running a 422 with AFR 225s and the small G5X3-112 and made 524/526 Rwhp/Tq through an M6. The G5X3 will be for sale in a couple of months, going quite a bit larger.

JakeFusion

iTrader: (7)

The big splits are for the LS7 heads. For the AFR 205s, keep the split the same: 2-6 degrees optimum.

Your old Comp XE-R 232/236 114+1 would be a hell of a torque cam in a 427.

pdd

iTrader: (3)

good luck with the new project!!!

SideStep

Hmmmm....


Thanks, I really cannot afford this right now we are building a new house at the same time

I am trying to roll all the lessons-learned with my previous mods into this setup and build a real driver (at least in my opinion)...

No Juice

iTrader: (11)

Why not try the Mamo cam 224/228? I'm sure that would work nicely for your needs