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

[Super73]

Ok.. I'll try to get both of yours done tonight..

[Sinister-65]

4.560bore x 4.5 stroke 6.535 rod flat top piston
2.3 int 1.88 exh 119cc 365 cc int runner 2.300 Intake 160 220 277 325 360 379
1.880 Exhaust 132 159 193 219 234 250
@28"H2O. cam @50 dur 265int 275exh .700lift int/exh 112lc
int 7.940 height 4500 flange.carb 1050 dominator.
headers 2 1/4 primary 31/2 collector approx 30"tube

trans 2spd 1.80 1st ,ptc 10" 4800 stall
4.10 gear 31x10.50 w tire
2800lbs car

[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?

[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]

I need lift numbers on the cam and crank/blower pulley sizes..

Originally Posted by 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

[Marv D]

If you get bored, let me know and I'll give you all the specs on my Nova and you can plug the power curve into DA. Maybe you can find out where that illusive 8 is hiding. But don't want to take time and effort away from the guys here.

[68 C-10 KID]

Thanks you very much for your time.

Engine info
Bore-4.155
Stroke-3.75
6" rod, scat crank, Je flat tops, comp cams internal wet belt, electric water pump, areo a1000 fuel pump. msd digital 6, 36 deg total timing.
Head data:
227cc Racing Head, Angle Plug, Standard Exhaust, 65cc 1068
http://www.airflowresearch.com/227sbc_rh.php
Compression ratio-11.6:1

Brodix HV1000
holley 950 mech with about 6.5" vac in gear
Header Data:
*1 3/4"* Tube Diameter hooker super comp
*30" * Tube length. to collector 3"

Cam info: ATTN: *4-7 SWAP*
# Grind No./Type RR-602 ROLLER Good cam for 3500LB bracket racing drags. 3000 stall. 4.56-4.88 axle ratio. 11-12

# 3500-7500 Valve Lift - INT
# .602 EXT w/ 1.6 should be 6.42
# .602 Valve Lash Hot - INT w/ 1.6 should be 6.42
CAM TYPE: SOLID ROLLER
PRODUCT USE: DRAG
Manufacturer: ISKY
Part#: 201602
installed @ 106.5 deg

jesel 1.6 SPORTSMAN SERIES SHAFT ROCKERS





Total weight= 3900
Front/Rear not sure 3 1/2" drop frnt 4 3/4" rear. Alum heads and fiberglass hood, batter in front fuel cell all the way in back. Rs 9000 on all 4 corners.

trbo 350 w/ hughes manual valve body. stock trans gears
3500 hd hughes
4:10
Differential - spool
Hoosiers "18131" 26.0/10.0-15 http://www.hoosiertire.com/specdrag.htm

[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]

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

[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

[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

[Super73]

Can you please give me more carb specs?

Originally Posted by 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

[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.

[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]

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.

[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