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Discussion Starter · #1 ·
will my cam be big enough for AFr205s? 236-242-555-576-108 HR cam. vic jr manifold, 750HP, 1\3\4 tubes, street car mostly so i need good mid range, 2500 to 6500 rpms will do it for me. my engine builder said it will be good for street car otherwise i have to flycut the probe pistons if i go any bigger on the cam. full manual c-4 car with 10'' converter with 3.89 posi rear. i think this new motor will rip.
 

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That is an OK cam for a street car, but it borders on being a bit mild.

My 393 with Pro Comp (Vic Jr knockoff) and a CC 236/236 561/561 solid cam is as mellow as a ***** cat around town. Drives smooth like a grocery getter unless I am gettin on it. In 1st or 2nd gear (with a 4 speed/3:70 posi) I can floor the car at any rpm up to my 6200rpm redline and break the tires loose.

I am hoping to put a bigger cam in it this winter for better track performance.
 

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On 2006-10-12 16:43, strokerman wrote:
this cam i have now is pretty nasty sounding at idle.
My cam mentioned above has a nice lope at idle too--and only 12lbs of vacuum. It doesn't affect the low rpm driving though. 110LSA
 

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Looks like a baby cam to me for that size engine. I ran a 246/256 @ 050 in my 351C and am upgrading since it's so small.

The 418W I am running has a 256/260 @ 050, solid roller, AFR205s, it's all out of power at 6400. Needs at least 15 more degrees of cam to bring up the RPM peak to 6800. Current cam idles @ 750RPM all day long, slight lope, monster torque at 2500...what can I say?

So... yes it'll work but it's a kitten.

Meow.
 

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Damn dude...I was figuring you'd have that engine together and on the road by now. I guess your projects move at about the same pace as mine....well actually quite a bit faster.


If it were my choice, I'd go with a bit more cam. Might want some drag radials if you plan on getting any sort of traction on the street.

Later

 

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You have a professional engine builder. Are you going to listen to him or a bunch of people who don't know the car, driver style of driving or the inner workings of your motor?
If you have been honest with the builder then go with what he says. You will be a lot happier with your motor than if you start changing things now. Listen to the professional - listen to the guy who put the engine together.
Paul
 

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Discussion Starter · #12 ·
yea he knows his motors and does a lot of these ford smallblock strokers, sure i could go with a bigger cam if it was a race car but its not, i think it will be ok for now with the cam i have, the heads alone will wake this motor up.
 

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On 2006-10-13 00:40, PaulS1950 wrote:
You have a professional engine builder. Listen to the professional - listen to the guy who put the engine together.
Paul
What makes you think we're not? Does this guy set any records? What horsepower can he make?

Some of us on here make the power and ET to stand up to our recommendations. The cam is a *****-cat for that engine. It won't peak above 6000 and he'll be dissatisfied when he gets stomped.
 

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Discussion Starter · #14 ·
street car not a race car, ill never see the high side of 5500 rpms around where i live, im lucky if this motor spins to 4500, i built this car to go from 0-60 as fast as it can, i have the whole car set up for this, mono leafs, rancho shocks, caltracs, M\T drag radials, sub frames, if i want 600 hp and spin it to 7grand then ill built a race car, torque moves heavy cars, who cares if i puks out at 6000 hell my old motor with a very small HR made power up to 6000 on the chasis dyno and still had more. my 69 mach1 has been with me since i was 18 yrs old and now im 48 im the second owner and no way am i drag racing this car every weekend, yea i might go down once here and there but its mostly a weekend driver. eletric fuel pump the whole 9 yards, full manual c-4 from jpt and it has a 10'' converter from jpt. the car will flat out move i can tell you that. 236-242 might be small for a 400 cu in motor but i know it will not disapoint
 

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On 2006-10-12 11:25, strokerman wrote:
street car mostly so i need good mid range, 2500 to 6500 rpms will do it for me.
Most of the opinions given here by myself and others was based on your original post. A mostly street car with 2500 to 6500 rpms.


But I guess that is not the car you really wanted:

On 2006-10-13 10:43, strokerman wrote:
street car not a race car, ill never see the high side of 5500 rpms around where i live, im lucky if this motor spins to 4500, i built this car to go from 0-60 as fast as it can.
The cam that you suggested will be fine for doing this. Enjoy, you won't be disappointed.


_________________
Dennis

65' STANG, 3160 lbs

393W NA, 2.78 Toploader 4 Spd, 9" 3:70 Posi
Pro Comp Heads, Vic Jr. Intake, 750dp, 236/561 Solid Cam, 9.6CR, 1 3/4" Headers, Lakewood, Subframes, Caltracs




<font size=-1>[ This Message was edited by: dennis111 on 10/14/06 6:51am ]</font>
 

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Discussion Starter · #16 ·
thanks. i think it will be ok, i might have said 6500 rpms on my first post but i know i never see that running on the street.
 
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