can someone run these #'s

[RAPTORFAN85]

Flash, I know that you have a "digi dino"
could you or somenone else run these nombers for me?

It's for the stock 96- ho cam EXCEPT that it has the higher lift because I am adding the
Yella Terra 1.7 roller rockers.

Just want some idea what the changes will be compared to stock.

thanks
jake



Advertised duration int./exh.: 256.0/260.0 deg
Duration @ 0.050" lift int./exh.: 188.0/192.0 deg
Valve lift int./exh.: 0.433"/0.440" (changed for 1.7 RR)
Lobe separation angle: 107 deg
Intake centerline angle: 114 deg
Valve overlap (advertised): 43 deg
IVO: 20 deg ATDC (0.050" lift)
IVC: 28 deg ABDC
EVO: 16 deg BBDC
EVC: 4 deg BTDC

[Flash]

I would be happy too.............But as i have told other, this is the busy time of year for me.(Running, Building, maintaining hour local Drag Strip) so you will have to be patient.

It takes a bit to run the program and even longer to convince the program to release the info


Flash

[Flash]

Flash, I know that you have a "digi dino"
could you or somenone else run these nombers for me?

It's for the stock 96- ho cam EXCEPT that it has the higher lift because I am adding the
Yella Terra 1.7 roller rockers.

Just want some idea what the changes will be compared to stock.

thanks
jake



Advertised duration int./exh.: 256.0/260.0 deg
Duration @ 0.050" lift int./exh.: 188.0/192.0 deg
Valve lift int./exh.: 0.433"/0.440" (changed for 1.7 RR)
Lobe separation angle: 107 deg
Intake centerline angle: 114 deg
Valve overlap (advertised): 43 deg
IVO: 20 deg ATDC (0.050" lift)
IVC: 28 deg ABDC
EVO: 16 deg BBDC
EVC: 4 deg BTDC

Hmmmm not sure how to play this one

If i input the cam spec .....
IVO: 20 deg ATDC (0.050" lift)
IVC: 28 deg ABDC
EVO: 16 deg BBDC
EVC: 4 deg BTDC

and then input your lift numbers .433/440
It computes a, @.050 duration of 228/200 (intake/exhaust)
Over lap come out to 24 instead of the 43 that you gave above
LCA is 95 instead of the 107

Now if i do it the other way and us the @.050 duration ................. and your lift........................

Hmmm something is just not right with these numbers.............

Jake, Double check these numbers and get back to me.

Flash

[RAPTORFAN85]

Flash, thanks for the help.

try these numbers

duration in.256 ex.260
duration @ .050 in.188 ex. 192

lift intake .433
lift exh. .440

IVO @.050 BTDC -20DEG
IVC @.050 ABDC 28DEG
EVO @.050 BBDC 16DEG
EVO @.050 ATDC -4DEG

ADVERTISED
IVO BTDC 14DEG
IVC ABDC 62DEG
EVO BBDC 50DEG
EVC ATDC 30DEG

OVERLAP 43DEG
LOBE SEPERATION ANGLE 107DEG
INYAKE CENTERLINE ANGLE 114DEG


flash, not sure if it matters but it is a dual pattern cam.

thanks
jake

[Flash]

Yeah dual and single patterns make a difference!
Them ### are much better..........

Adding this ..
ADVERTISED
IVO BTDC 14DEG
IVC ABDC 62DEG
EVO BBDC 50DEG
EVC ATDC 30DEG
and this.....
lift intake .433
lift exh. .440
MY cam calc came up with the rest.......which is the same as the rest of you spec's............so i think this is a much more accurate one.

Here ya go!


4.2
AMC 4.0L
4
1 3.875000
1 3.895000
6
1 5.873000
1 1.507831
0
jeep 4.0 HO 7120/ 0631 head W standard valves
17
1
1
1 1.910000
1 1.500000
1 9.440000
1 400.000000
1 1.500000
Single-Plane Std-Flow
1
Gasoline
Small-Tube Headers With Mufflers
3
1
96+1.7 rocker arms.cam
4.2
0
96+ w 1.7 rocker arms
6
Hydraulic
1
Seat-To-Seat
1
1 0.000000
1 0.433000
1 0.440000
0
1 14.000000
1 62.000000
1 50.000000
1 30.000000
0.050-inch
2
0 5.000000
0 29.000000
0 45.000000
0 9.000000
1 3.000000
0
AMC
***
Street High Performance
***
***
***
***
***
1
jeep 4.0 HO 7120/ 0631 head W standard valves
0
6
1500 73.616585 257.756195
2000 105.832756 277.916809
2500 136.674530 287.125854
3000 165.801224 290.262665
3500 196.606277 295.021759
4000 223.668243 293.676392
4500 240.532913 280.728638
5000 243.255829 255.515930
5500 228.811478 218.494156
6000 205.477493 179.861298
6500 175.747528 142.003998
7000 146.737671 110.095177
7500 110.482887 77.367485
8000 77.480972 50.866257
8500 36.568432 22.594988

Flash

[RAPTORFAN85]

THANK YOU FLASH!

I know that you said you are busy so it is much appreciated!

those #'s look pretty good to me.
WOW! almost 260lbs ft. of tourque at 1500rpm! Thats what i wanted to see.
Not too worried about the lower hp #'s but its good to see the torque #'s so high at lower rpm's, thats what I wanted!

[Flash]

THANK YOU FLASH!

I know that you said you are busy so it is much appreciated!

those #'s look pretty good to me.
WOW! almost 260lbs ft. of tourque at 1500rpm! Thats what i wanted to see.
Not too worried about the lower hp #'s but its good to see the torque #'s so high at lower rpm's, thats what I wanted!

As i have said before these numbers are high!!!!!!! don't get to hung up on them!

A desk top dyno or the dyno sim that i use, is grate for comparing different parts............such as one cam to another.
Just don't get too caught up in the numbers.....................................................


Flash

[RAPTORFAN85]

THANK YOU FLASH!

I know that you said you are busy so it is much appreciated!

those #'s look pretty good to me.
WOW! almost 260lbs ft. of tourque at 1500rpm! Thats what i wanted to see.
Not too worried about the lower hp #'s but its good to see the torque #'s so high at lower rpm's, thats what I wanted!

As i have said before these numbers are high!!!!!!! don't get to hung up on them!

A desk top dyno or the dyno sim that i use, is grate for comparing different parts............such as one cam to another.
Just don't get too caught up in the numbers.....................................................


Flash

I know, I am aware of that.
I am happier with the flatness of the torque curve over the hard numbers.

thanks again flash