Engine Analyzer and Drag Analyzer.. Willing to put your info in.

[Super73]

Marv,

PM it to me when you have time. I'll keep you in line

[Super73]

69trk,

I need to know what the lobe seperation is on your cam or exhaust centerline. You only gave me intake centerline. I could not find any cam timing info on the web. I have the rest of you motor done and ready for it.

[Super73]

Phipp13,

I need to know what pulleys you are running. Crank and blower size or number of teeth on the coggs. It won't let me simply put psi in for boost. I have everything else done and saved.

Shaun

[Super73]

Sinister,

You gave me flow numbers, but at what lift?
No compression ratio
I'm assuming 112lc is 112 lobe seperation. What's the intake centerline?
I'm assuming the intake is a single plain?

[Super73]

68 C-10,

I tried finding the lobe seperation or exhaust center for that cam and was not very lucky. If you can find that, that would be great. The rest of it is saved.


Shaun

[Super73]

69trk

Can you please give me the details on your truck.. I want to see how it does with your ET/MPH based on your combo.

[69trk]

Pm'd ya on the truck, do you think that my headers are choking this thing up? I already know that i need some aluminum heads that flow better.

[Super73]

I'll try to play with the truck stuff later tonight or tomorrow. I am leaving for dinner in a few with my wife..

As far as headers. I quickly plaid with diameter and length as well as doing an optimze.. Believe it or not, you are not loosing much with you current set up. With 2.25" x 41" your only gaining 5ftlbs at peak and 2hp at peak.

I have it optimizing your cam while I'm gone. Normally an hour long thing.

[69trk]

It sounds like there is no need to dump $700 in a new set of supercomps.

[PhilaTruck]

Hi Shaun- here are my numbers:

Engine info
Bore (4.155)
Stroke (3.75)

Head data:
Intake and Exhaust Valve size (2.02/1.6)
Head flow numbers
LIFT-IN/EX:
(0.05-40/22)
(0.1-70/53)
(0.15-110/77)
(0.2-140/105)
(0.3-187/135)
(0.4-225/158)
(0.5-240/164)
(0.6-243/171)

Compression ratio: (9.8)

Type of intake (dual plane) #10185063 (GM Parts direct) Considering Air Gap.
Carb or TB (Vacuum Q-jet, worked for hi perf)

Header Data:
(1.75 primary/3.00 collector) Tube Diameter
(37") Tube length to collector

Cam info:
Link to MFG's web page or cam card would be best but.. (CompCam specs (12000-5) 6057/6014 104+4) This will be very hard to find, but here's what I know.
Duration at .050" (244/250)
Total Lift and based on what rocker ratio (.521/.533) (1.5)
Intake centerline (Don't know.)
LSA (104) with 4 degrees advance
Overlap (74)
What rocker are you using? (Proform roller)

Blower/turbo? No.



Vehicle Data Stock
Total weight (3800)
Front/Rear weight bias (Don't know.)
What trans you are running (700r4)
Size converter (2800)
Gear ratio (2.73)
Differential (Open)
Tire size (stock 235/75R15).

Are you running N20? (No.)

Thanks-

-Todd

[68 C-10 KID]

Originally Posted by Super73

68 C-10,

I tried finding the lobe seperation or exhaust center for that cam and was not very lucky. If you can find that, that would be great. The rest of it is saved.


Shaun

Thanks for your time Shaun. I believe this link will have all the info you need.
http://www.iskycams.com/timingchart....g_chart_id=240

[phipp13]

shaun,the crank pulley is 6" and the blower pulley is 2.625". i believe thats 144% overdriven. i really apprechiate you doing this for me. what do you think of my cam profile?? i was told that it was a good cam for running a blower by the people who sold it to me.also i just looked at the dif between 1.5/1.6 rocker ratios and corrected lift 4.88/5.10@1.5 should be 5.10/5.44 for a 1.6 rocker
here is some added vehicle info
weight 3800 lbs
racing turbo 400
stall 3200 kinda low for blower app
ford 9" posi diff 4.10
tire 31x16.5x15
weight bias 55/45

v/r Phipp

[Super73]

68 C-10

Here is your engine dyno stuff.. Unfortunately, I'm getting the "converter is too low" to make it work in drag analyzer. I'll play with it more.

[Super73]

Hey 69trk,

Does this look a little more like your graph?

I had the bearing and piston tolerances set to production vs race. Seemed to make a little difference

[69trk]

thanks, now i just have to figure out my converter and what else is keeping me out of the 10's.

[68 C-10 KID]

Originally Posted by Super73

68 C-10

Here is your engine dyno stuff.. Unfortunately, I'm getting the "converter is too low" to make it work in drag analyzer. I'll play with it more.

Holy moly thats so cool. Your good, real good.
Those are fast numbers you have on your truck, wish i could click off a 11 something ET.
Converter to small, dang that's new.
Thanks so much.

[Super73]

The program is funny with the converter.. Not too sure why it does it. But in all reality, you could use a bigger converter

[Sinister-65]

Originally Posted by Super73

Sinister,

You gave me flow numbers, but at what lift?
No compression ratio
I'm assuming 112lc is 112 lobe seperation. What's the intake centerline?
I'm assuming the intake is a single plain?

sorry about that, lifts for the # provided were .200.300.400.500.600.700
and after checkin my cam card I gave you the old cam not my new one
so .775 int 284 @ 50 dur ,.723 exh 292@.50dur int cl 105 ,ls 110
yes single plane intake. and comp ratio 10.3

[Tmiller]

Big block chevy
4.00 stroke
4.28 bore
stock clearances
stock water pump
electric fans
MSD disributor, coil, box
iron oval port cast# 336781 118 cumbustion chamber, 256cc in./114cc exh. ports stock but I have mildly port and polished them
2.19/1.88 manley severe duty valves
8.7:1 CR
177 ci Weiand blower 8lbs boost
hooker 2"x35" primary and 3 1/2"x10" collector
Comp 11-564-4 @.050 230/244,113 lobe seperation, 108 In. center
1.7 rocker
850 demon blower carb
stock geared TH350
2500 converter
3:73 limited slip diff
29x18x20 Mickey T.drag radials

[Super73]

Who all do I owe answers to? I've beenrunning around a little and also just picked up a pup so I have lost track.. Here is my track guard dog

[PhilaTruck]

Nice pup! Rotty?

I'm post 60. I was missing the ICA. I supplied all other info.

Thanks and Happy New year!

-Todd

[Tmiller]

What breed is the pup?
I dug up some #s.
.100-69/56
.200-158/102
.300-217/135
.400-254/161
.500-263/186
.600-274/209
.700-272/219
Will this help?

[Super73]

He is a 7 1/2 week Rotty. I should be able to finish yours up Phila tomorrow and get to yours Tmiller..

[phipp13]

hey shaun, fyi phipp13 here i've been in line since 12/18/8. i hope that you and yours had a great holiday. we sure did. have you picked a name for your pup? Has he got you trained yet? If you get a chance could you run my #s i posted for you? l would be very greatfull. i've seen your work and i'm impressed if i can return the favor please let me know. please check out these threads and let me know what you think. respectfully Phipp13
http://www.67-72chevytrucks.com/vboa...d.php?t=319383
http://www.67-72chevytrucks.com/vboa...d.php?t=318731

[djracer]

I wish I had decent cam info on my old combo but I bought a cam that was way to big(supposed to have been a custom grind for my combo) and it wouldn't run so I borrowed a cam from one of my buddies. I have the box it was in at home but it was a regrind so I don't know how detailed the info is.