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[BRUTAL64]

I looked at the 315's- numbers look good, but the full CNC steps the bucks back over 3k. I'm going to do the 325's as cast, CNC chambers, all parts. I need to check, but I may have to drop back to the full "as cast" heads. From what I have read, the CNC thing jumps the chambers to 121cc- too big.

As cast is USUALLY fine. You could always smooth the chambers if you want. Yes, 121 cc is too big. 115 to 118 is what would work with your combo.

This 496 is shaping up fine.:drink:

 

[BRUTAL64]

comp xr296 HR with AFR 325s--final numbers using Comps grind numbers--straight up


.566 lift


.050 duration
242 intake
248 ex

112 LSA

638 hp 5500
652 ftlbs 4500


558 ftlbs at 2000


I still like this cam.


Dual plane Dual Quad intake

609 hp 5500
638 tq 3500 to 4000 --even 636 ftlbs at 3000

603 ftlbs at 2000


Damn!!!!!!!!!!!!!!!


Something has got my attention, this all with only 91% vol eff. Interesting.:goodevil:

 

[BRUTAL64]

Crane 139021 HR AFR325
610 intake
632 ex

.050 duration

234 int
242 ex


LSA 112


621 hp 5500
655 tq 4500
654 tq 4000



586 tq at 2000


Still great low end.


Moved the intake lobe center line from 107 to 110 left the LSA at 112

633 hp at 5500
655 tq at 4000

586 tq at 2000

Very interesting. I went to a dual plane intake with the dual quads and it jumped to well over 600 ftlbs tq at 2000 rpm. Of course it lost some HP up higher.


596 hp at 5500
659 ftlbs at 3000


635 ftlbs at 2000

Vol eff 92.2%

 

[BRUTAL64]

The AFR 325s come with springs good to .750 lift and 255 lbs seat pressure.

You could go quite CRAZY with a cam here. :beer:


I know the way "I" would go, but this is "YOUR" engine.prrtt:


Let me know any other cams you have in mind.:amused:


IF someone else has a suggestion, feel free to jump in. I REALLY don't know everything.

 

[BRUTAL64]

comp 304hr--afr325--final numbers using Comp gind specs-- had to retard cam -2 to get good final numbers

612 lift


.050 duration

244

110 LSA


643 hp at 6000
654 tq at 4500


560 tq at 2000


I see a pattern here.

This cam really doesn't like the dual plane intake. That's what I thought at first, but once I had the grind numbers--things look better.


603hp at 6000
643 ftlbs at 3500 642 at 4000

607 ftlbs at 2000

Vol eff. is 92.4%

 

[SmokinBBC]

IF someone else has a suggestion, feel free to jump in. I REALLY don't know everything.

Maybe not, but you sure are a tough act to follow

 

[BRUTAL64]

IF someone else has a suggestion, feel free to jump in. I REALLY don't know everything.

Maybe not, but you sure are a tough act to follow

:loveletter:Gee, Gosh- I try the best I can. Thanks

 

[BRUTAL64]

Tim:
Keep checking all the AFR 325 numbers I've done. I keep making changes and add-ons as I figure ways of getting more or different power gains.:drink:

 

[BRUTAL64]

Crower 01405HR--- Afr---no grind numbers to work with
110LSA

612 int
636 ex

.050 duration
245 int
253 ex


669 hp 6500
651 tq 4500


538 ftlbs at 2000


Dual plane Dual Quad


631 hp at 6000
637 tq at 4000

583 ftlbs at 2000

90.4% vol eff


Just to do a Bigger Cam

 

[SmokinBBC]

IF someone else has a suggestion, feel free to jump in. I REALLY don't know everything.

Maybe not, but you sure are a tough act to follow

:loveletter:Gee, Gosh- I try the best I can. Thanks

Just keep going with this one:bounce: I am watching what you come up with...I may get tired of my BB tope end in a couple of years and look back at the results of Tims new engine for ideas

 

[BRUTAL64]

IF someone else has a suggestion, feel free to jump in. I REALLY don't know everything.

Maybe not, but you sure are a tough act to follow

:loveletter:Gee, Gosh- I try the best I can. Thanks

Just keep going with this one:bounce: I am watching what you come up with...I may get tired of my BB tope end in a couple of years and look back at the results of Tims new engine for ideas

What cam do you have now? What is it you are thinking of doing in the future?
Give some engine spec--the more detailed the better.:friends:

 

[SmokinBBC]

IF someone else has a suggestion, feel free to jump in. I REALLY don't know everything.

Maybe not, but you sure are a tough act to follow

:loveletter:Gee, Gosh- I try the best I can. Thanks

Just keep going with this one:bounce: I am watching what you come up with...I may get tired of my BB tope end in a couple of years and look back at the results of Tims new engine for ideas

What cam do you have now? What is it you are thinking of doing in the future?
Give some engine spec--the more detailed the better.:friends:

Sounds great. I'll post in a new thread so I don't hijack this one.:thumbs:

 

[kwplot34]

Hey Tim,now that you have all the head and cam combo's worked out,i have the perfect block sitting in my drive way that you should get, it's already bored and has been line bored :wink: make you a good deal on it. let me know,i'm thinking a $1k for the block,but for you $700.

:friends:

 

[TimAT]

Hey Tim,now that you have all the head and cam combo's worked out,i have the perfect block sitting in my drive way that you should get, it's already bored and has been line bored :wink: make you a good deal on it. let me know,i'm thinking a $1k for the block,but for you $700.

:friends:

Gotta' do your friends, your enemies never come around..:lol:


Let's see, round trip trailer rental to Kalifornia, 3300 miles @ $.04 per mile is ..........

 

[BRUTAL64]

Here's a Comp Solid Roller with the AFR 325s

623 lift

.050 duration

245

110 LSA

639 hp at 6000
650 tq at 4000

557 ftlbs at 2000

With Dual Plane Dual Quad


610 hp at 5500
643 tq 3500-4000


605 ftlbs at 2000

Tim:
All of the first numbers ( all cams with AFR 325 numbers ) are done with Single Plane Dual Quad intake- Offy type.
All the Dual Planes are done with a Edlebrock Style Intake Dual Quad. If you use an Air Gap Dual Quad the numbers would be closer to the single plane.:bounce:

 

[BRUTAL64]

Hey Tim,now that you have all the head and cam combo's worked out,i have the perfect block sitting in my drive way that you should get, it's already bored and has been line bored :wink: make you a good deal on it. let me know,i'm thinking a $1k for the block,but for you $700.

:friends:

Gotta' do your friends, your enemies never come around..:lol:


Let's see, round trip trailer rental to Kalifornia, 3300 miles @ $.04 per mile is ..........

Hey, don't forget the over 55 mph penalty tax. That 10 cents per mile.:smash:

 

[BRUTAL64]

Hey, looking a some of Comp Cams (remember I'm not a fan) Solid Roller grind numbers I found a couple of them that look good. You want some number on these??

Remember a Solid Cam will idle smoother and with higher vacuum than a Hydralic Cam of the same spec.:huh::skeptic:

 

[enkeivette]

Aren't you an airplane engineer? Turbine power!

 

[kwplot34]

Aren't you an airplane engineer? Turbine power!

Glenn? he is a retired NASA flight engineer and an original Mercury back up pilot. :huh:



:bump:

 

[big2bird]

Aren't you an airplane engineer? Turbine power!

Glenn? he is a retired NASA flight engineer and an original Mercury back up pilot. :huh:



:bump:

A chimp??????????????