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Old 12-04-2008, 12:20 PM   #1
Super73
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Engine Analyzer and Drag Analyzer.. Willing to put your info in.

I have been playing around with both of these programs quite a bit now.

I would love to get full combos from people to see how accurate these programs are. I feel it's been pretty good for me so far. At the end of this post are all the things I think I will need to run both programs.

Engine Analyzer is a pretty nice little program and I think it gives you a pretty good idea of what the motor is making. Has a ton of option for you to adjust, so garbage in will equal garbage out.

Drag Analyzer is also a nice program. Using the info I got from Engine Analyzer, I put it in to the closest vehicle I could find in drag analyzer. Needless to say it was way off at first. I started adjusting settings like weight, weight bias, traction, converter, all to be in my range. It was much more accurate. I had to massage traction, frontal area and drag coef a bit to get it dialed, but it was more or less right on.





I then changed the traction figure to 100% from 63% as I new I was not hooking up 100% at the track, video, data logger and my butt told me so. This is what it told me.





Here is a graph overlay of the two.





When setting it up for the N20 pass, I said I turned it on at 1.6 in the run. Told me I should have went 11.28 @ 119.2. I know I short shifted and only ran an 11.282@115.3. With no data logger running that pass, I had to play around with shift points and where the 100 shot came in to get some what accurate on the N20 pull. There is a nice "Calcualte Performance" feature on this program and there is a "Auto Optimize" button. You can put in multiple items for it to adjust to give you a certain mph or ET, or it will adjust to find your quickest. So after a few tries, I let it figure out what I did.

It said I turned the bottle on at 1.2 seconds in to the run and shifted 1-2 at 7,100 and 2-3 at 6600. From the sound on the video, I'd say that is fairly accurate.





So what would it say if I had 100% traction and let it figure out where to turn the bottle on and shift at?






What about the full kit. I phased it in, 100 hit at .0, 200 at .5 and 300 at 1.0... This seems a little optimistic.







At any rate, here is what I would need for your vehicles to run them..



Engine info
Bore
Stroke
Factory tolerances or set up more as a race motor?
Electric Water pump?
Electric Fan?


Head data:
*----* Intake and Exhaust Valve size
*----* Head flow numbers (Please provide them or a link to MFG's website, I don't want to have to search for info. If these are stock heads, try to give me a casting or something)
Compression ratio

Type of intake (Single plain, dual plane, again link if you can find it).
Carb or TB (Is it a vacum carb?)

Header Data:
*----* Tube Diameter
*----* Tube length to collector (this can be your best guess, but the more accurate, the better)

Cam info:
Link to MFG's web page or cam card would be best but..
Duration at .050"
Total Lift and based on what rocker ratio
Intake centerline
LSA
What rocker are you using?

Blower/turbo?
I need to know size and PSI you are running.
Intercooler? Air to Air or Air to water?


Vehicle Data (I am going to try to keep this simple and use my aero for the most part).
Total weight
Front/Rear weight bias
What trans you are running (Gear ratio if different than stock)
Size converter (STR if you have it)
Gear ratio
Differential (Open, production posi, spool)
Tire size (height, width and type, again if you have a link to the MFG's page, even better).

Are you running N20? If so, how many stages and how big are they?




Please understand that while I enjoy doing this, I may not get to it right away. Also, please understand, garbage in, is going to be absolute garbage out.



Shaun
__________________
------Motor---------------Bottle
60'---1.53---------------??? Best on another pass was 1.43 spinning
1/8---6.58 @ 105.92----6.25 @ 114.4
1/4---10.38 @ 126.97----9.82 @ 132

Last edited by Super73; 12-21-2008 at 04:16 PM.
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Old 12-04-2008, 10:13 PM   #2
ripdog28
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Re: Engine Analyzer and Drag Analyzer.. Willing to put your info in.

Bore 4.290
Stroke 4.00

2.25/1.88
Dart Iron Eagle 308 Light blue for Intake and red on Exhaust
10.25:1

Single Plane Wieand Team G
Quick Fuel Technologies 850 Mechanical secondary

Header Data:
# 1-3/4" x 30 " Primary Tubes
# 3" Collector

Cam info:
Crower

Comp Cams # Pro Magnum Roller Rocker Arms
7/16'' rocker stud
1.7 ratio

Just Engine info now. Truck will not be done for a few months.
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69 c-10 BBC
462ci, forged crank, H-beam rods, 10.5-1 KB forged pistons, Dart Iron Eagle 308cc, custom ground Crower cam 289/301dur and 525/544lift, Comp Cams chrome moly full rollers, Weiand Team G w/2in spacer, Quick Fuel 850 carb, TH400/3500 Dalenzie stall, Currie 9+ Detroit Locker w/31spline axles.3.5/6in drop. My Build.

Last edited by ripdog28; 12-04-2008 at 10:19 PM.
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Old 12-04-2008, 11:02 PM   #3
Super73
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Re: Engine Analyzer and Drag Analyzer.. Willing to put your info in.

Here you go..




I stuck that in my truck file and let the computer figure out the "best" converter and shift points:

3,900lbs with a 55/45 weight distribution
4.56's
30x14.50 tire
TH400 gearing

1-2 = 6,500 rpm
2-3 = 6,200 rpm
4,000 converter

__________________
------Motor---------------Bottle
60'---1.53---------------??? Best on another pass was 1.43 spinning
1/8---6.58 @ 105.92----6.25 @ 114.4
1/4---10.38 @ 126.97----9.82 @ 132

Last edited by Super73; 12-04-2008 at 11:09 PM.
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Old 12-05-2008, 01:21 AM   #4
GMC70c20
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Re: Engine Analyzer and Drag Analyzer.. Willing to put your info in.

The specifics of the engine, 6.2 ls3 crate engine. 450hp 445ft/lbs with stock L92 heads, 10.2:1, stock fuel injection and ignition, 1-3/4 to 1-7/8 stepped headers about 26in of tube with 3" duals, total weight 3450, 60/40 bias, 4l60e with 4.10's, 275/50/r15 tires on rear with spool, ajustable qa-1 stocks front and rear, tubular front suspension, 4" drop leafs in rear with cal-tracs and 9". A stock converter matched to the ls3, this truck isnt together yet im hoping to have it driveable this summer. I know I didnt give you all the info you requested but thats all I know for now.
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Last edited by GMC70c20; 12-05-2008 at 01:22 AM.
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Old 12-05-2008, 08:26 AM   #5
ripdog28
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Re: Engine Analyzer and Drag Analyzer.. Willing to put your info in.

Thank you Super73 Those power curves look sick and it motivated me a bit. Will really be getting some work done now.
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69 c-10 BBC
462ci, forged crank, H-beam rods, 10.5-1 KB forged pistons, Dart Iron Eagle 308cc, custom ground Crower cam 289/301dur and 525/544lift, Comp Cams chrome moly full rollers, Weiand Team G w/2in spacer, Quick Fuel 850 carb, TH400/3500 Dalenzie stall, Currie 9+ Detroit Locker w/31spline axles.3.5/6in drop. My Build.
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Old 12-05-2008, 09:14 AM   #6
Super73
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Re: Engine Analyzer and Drag Analyzer.. Willing to put your info in.

GMC70C20,

I can not run an engine or drag profile with out the requested info. There is no way to put the data in.

I can run a drag profile only if someone sends me a dyno of their engine for comparisons though. I would be very interested in that as well.
__________________
------Motor---------------Bottle
60'---1.53---------------??? Best on another pass was 1.43 spinning
1/8---6.58 @ 105.92----6.25 @ 114.4
1/4---10.38 @ 126.97----9.82 @ 132
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Old 12-05-2008, 01:38 PM   #7
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Re: Engine Analyzer and Drag Analyzer.. Willing to put your info in.

I have a book that has been my BIBLE for about 10 years. It's called

Auto Math Handbook by John Lawler. It contains most every calculation,

and formula you could ever need. I've found it to be almost dead on in

real world applications. I know there are really good programs out there

and the book even has a chapter about that. I just like to do it myself.

Funny thing, the last chapter is how to calc. blood alchol content.

FWIW
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Old 12-05-2008, 02:09 PM   #8
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Re: Engine Analyzer and Drag Analyzer.. Willing to put your info in.

383ci
Bore 4.030”
Stroke 3.75”

11.1 Compression Ratio

Pontiac Motorsports 867 Heads
2.05/1.60 valves. 62cc.

Flow Numbers @ 28”

Intake --------- Exhaust

.200 150 cfm -- .200 151cfm
.300 203 cfm -- .300 192 cfm
.400 218 cfm -- .400 207 cfm
.500 252 cfm -- .500 217 cfm
.550 257 cfm -- .550 218 cfm
.600 257 cfm -- .600 222 cfm


Cam…NX288HR http://www.compcams.com/Cam_Specs/Ca...?csid=172&sb=2

236/248@0.50 .555”/.577”with 1.6 rockers. 113lsa, 108CL

Intake… Weiand Team G Single Plane.

Carb…Holley 800cfm DP

Headers…Hooker Supercomp 1.75” 3” collector… 3” exhaust with X pipe.

200hp nitrous shot. 2500rpm chip in the rpm activation switch…

Transmission…TH350 with 10” TCI Converter. Flashes to 5100rpm on the nitrous.

3.73 gear… auburn limited slip.

28x10.5/15…M/T ET Drag.

Weight…3825lbs with driver.
__________________
Video's of my Truck Racing

1967 C-10, 383ci, TH350, 3200 stall, 3.73 gear

1/8 Mile
1.82 60ft
8.11 @85mph...Motor

1.54 60ft
7.12 @97mph with Nitrous...
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Old 12-05-2008, 04:23 PM   #9
1FAST68
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Re: Engine Analyzer and Drag Analyzer.. Willing to put your info in.

bore=101.6mm
stroke=92mm

9.2cr

750 proform mech secondaries

heads have 2.165 int and 1.59exh
260cc int port/90cc exh port
.200=148/126
.300=212/162
.400=264/189
.500=302/205
.600=322/214
.700=316/221

gm open plenum single plane intake

cam XR281HR hydraulic roller
dur @ 50 228/230
lift 571/573
lsa 112
icl 110

3800lbs with driver
3.73 gears
posi
315/60-15 mickey thompson drag radial
29.9" tall,,,11.5" wide
old covertor ptc street fighter flashed to 36-800
new ptc super street fighter flashes to 4600

doug thorley tri-ys
I think they are 1 3/4 ,, 3" exhaust

Last edited by 1FAST68; 12-05-2008 at 08:31 PM. Reason: forgot exhaust
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Old 12-05-2008, 05:24 PM   #10
Super73
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Re: Engine Analyzer and Drag Analyzer.. Willing to put your info in.

383Stroker



NA Info











N20 Info







__________________
------Motor---------------Bottle
60'---1.53---------------??? Best on another pass was 1.43 spinning
1/8---6.58 @ 105.92----6.25 @ 114.4
1/4---10.38 @ 126.97----9.82 @ 132
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Old 12-05-2008, 05:26 PM   #11
Tri5Nerd
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Re: Engine Analyzer and Drag Analyzer.. Willing to put your info in.

How about my little LS1 in my 55.2
Not sure of the weight but assuming it will be somewhere around 3900 with my weight "225"

Engine info
Bore = 3.90
Stroke = 3.62

Head data:
2.04/1.575

Intake Flow Information:
.300 208
.400 257
.500 290
.600 312

Compression ratio
11.27:1

Type of intake
Fast 92/NW92
http://texas-speed.com/shop/item.asp...d=646&catid=73

Header Data:
1 3/4" Primaries
30"

Cam info:
http://texas-speed.com/shop/item.asp...d=168&catid=44
Duration at .050"
232/234
Total Lift and based on what rocker ratio
595/598
Intake centerline
110
LSA
112

What rocker are you using?
Stock LS1

Vehicle Data (I am going to try to keep this simple and use my aero for the most part).
Total weight
3900
Front/Rear weight bias
???
What trans you are running (Gear ratio if different than stock)
Stock LS1 4L60e with Shift kit.
Size converter (STR if you have it)
Super Street Fighter 3500
Gear ratio
9" 3.70
Differential (Open, production posi, spool)
Open Diff
Tire size (height, width and type, again if you have a link to the MFG's page, even better).
MT ET Streets 31x16"


Thanks
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Old 12-05-2008, 05:27 PM   #12
Super73
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Re: Engine Analyzer and Drag Analyzer.. Willing to put your info in.

Fast68.. I'll have to get to yours later.. But your killing me with the metric.. You want me to convert it too?? Just playing with ya..
__________________
------Motor---------------Bottle
60'---1.53---------------??? Best on another pass was 1.43 spinning
1/8---6.58 @ 105.92----6.25 @ 114.4
1/4---10.38 @ 126.97----9.82 @ 132
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Old 12-05-2008, 05:28 PM   #13
Super73
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Re: Engine Analyzer and Drag Analyzer.. Willing to put your info in.

You too, Tri5, I'll get to them maybe later tonight or tomorrow morning..
__________________
------Motor---------------Bottle
60'---1.53---------------??? Best on another pass was 1.43 spinning
1/8---6.58 @ 105.92----6.25 @ 114.4
1/4---10.38 @ 126.97----9.82 @ 132
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Old 12-05-2008, 08:17 PM   #14
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Re: Engine Analyzer and Drag Analyzer.. Willing to put your info in.

have no idea on flow numbers, but here's the rest

bore and stroke: 4.280 x 3.76
heads: 14097088 gen v. bowl ported 2.19 x 1.88
cr: 11/1
Intake: dart single plane port matched
carb: 950 proform
Headers: hedman 1 7/8 and 3"collector
cam: comp mech. roller 11-711-9 duration 272/282 108 intake cl/ 680 lift
comp roller rockers
weight: 3950
Trans: turbo 400 w/transbrake
conv: 10" 3800 stall
rearend: full spool, 373gears,
tires: 28x14.5x16 qtpros.
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http://67-72chevytrucks.com/vboard/s...d.php?t=494388

431 big block times, changing to 5.3 ls with turbo
1.58- 60'
7.18- 1/8th mile@95.18
11.37- 1/4 @115.81

Last edited by 69trk; 12-05-2008 at 09:06 PM.
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Old 12-06-2008, 05:03 PM   #15
383 Stroker
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Re: Engine Analyzer and Drag Analyzer.. Willing to put your info in.

Thanks, seems very optimistic in my case...
__________________
Video's of my Truck Racing

1967 C-10, 383ci, TH350, 3200 stall, 3.73 gear

1/8 Mile
1.82 60ft
8.11 @85mph...Motor

1.54 60ft
7.12 @97mph with Nitrous...
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Old 12-06-2008, 05:27 PM   #16
GMC70c20
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Re: Engine Analyzer and Drag Analyzer.. Willing to put your info in.

4.06 bore 3.46 stroke, 2.16 intake / 1.59 exhaust, P/N 809-12598594 head part# there stock L92's, .100 74.9, .200 154.4, .300 225.3, .400 274.6, .500 308.8, .600 328.6, 10.7:1,
stock injection and intake, 1-3/4 to 1-7/8 with a 3.5" collectors about 30" of tube with 3.4" duals, Camshaft duration (@.050 in): 204 degree intake / 211 degree exhaust, Valve Lift (in): .551 intake / .522 exhaust, 114 lobe sep, 110 deg intake centerline, 1.7 ratio stock rockers, 3650 total weight, 60/40 weight bias, 4l60e, with 10" converter, 4.10 gears, 275/60r15 drag radials on back, with a spool.
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Old 12-06-2008, 06:39 PM   #17
Super73
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Re: Engine Analyzer and Drag Analyzer.. Willing to put your info in.

1Fast68

I was having a hard time getting the program to run your old converter. Said you didn't have enough TQ. Computer says this is what you will do with the new converter and it feels optimal shift points would be 7,200rpm..
















Sorry guys, I'll play with it more later for the rest of you..
__________________
------Motor---------------Bottle
60'---1.53---------------??? Best on another pass was 1.43 spinning
1/8---6.58 @ 105.92----6.25 @ 114.4
1/4---10.38 @ 126.97----9.82 @ 132

Last edited by Super73; 12-06-2008 at 07:20 PM.
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Old 12-06-2008, 07:53 PM   #18
1FAST68
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Re: Engine Analyzer and Drag Analyzer.. Willing to put your info in.

Thanks

It did feel like it didn't have any tq. I will run it tomorrow and see how they compare.
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Old 12-07-2008, 06:41 PM   #19
1FAST68
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Re: Engine Analyzer and Drag Analyzer.. Willing to put your info in.

For some reason I can't get the pig to leave. It dosn't spin or anything.

60ft 1.80
330 5.010
1/8 7.69
mph 91.24
1/4 12.07
mph 110.10

I did get a 1.78 1 time but it didn't run any better.
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Old 12-07-2008, 11:34 PM   #20
ripdog28
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Re: Engine Analyzer and Drag Analyzer.. Willing to put your info in.

1fast68: If you want to do a quick test get a duel plane intake. I bet that would boost your TQ down low and probably be the fastest fix. Your cam Duration is pretty mild and most likely set at a lower RPM then the intake wants.
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462ci, forged crank, H-beam rods, 10.5-1 KB forged pistons, Dart Iron Eagle 308cc, custom ground Crower cam 289/301dur and 525/544lift, Comp Cams chrome moly full rollers, Weiand Team G w/2in spacer, Quick Fuel 850 carb, TH400/3500 Dalenzie stall, Currie 9+ Detroit Locker w/31spline axles.3.5/6in drop. My Build.
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Old 12-08-2008, 02:08 PM   #21
Super73
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Re: Engine Analyzer and Drag Analyzer.. Willing to put your info in.

Rip,

IMO, I'm not sure a dual plane would help much, here is why..

The converter he has in it should be getting him far enough up in RPM to where the low end TQ isn't going to be a big issue.

The heads he is running have a 260cc intake runner and have a 2.165 intake valve. Paired with a small cubbed motor, it hurts TQ even with a small duration cam. A duel Plane might help the low end TQ, but over coming the low velocity air flow in the heads is going to be a hard thing to over come.

The L92 heads he has on that motor don't seem to like real big camshafts until there is a lot of cubic inch or stroke thrown at them. A 362ci motor is only going to require soo much air. The L92 heads flow well in to the 320CFM range stock from the factory, but at a lower velocity. I think that combo would be better suited with a different set of heads personally.


Here is an overlay of his current combo with a typical single plain vs a dual.






Here is an over lay of the existing combo with the L92 heads vs the ones that are on my motor. Easy to do since I have both head profiles saved. Mine only flow 306cfm but have a much smaller runner and only a 2.02 valve.


__________________
------Motor---------------Bottle
60'---1.53---------------??? Best on another pass was 1.43 spinning
1/8---6.58 @ 105.92----6.25 @ 114.4
1/4---10.38 @ 126.97----9.82 @ 132
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Old 12-08-2008, 02:14 PM   #22
1FAST68
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Re: Engine Analyzer and Drag Analyzer.. Willing to put your info in.

Quote:
Originally Posted by ripdog28 View Post
1fast68: If you want to do a quick test get a duel plane intake. I bet that would boost your TQ down low and probably be the fastest fix. Your cam Duration is pretty mild and most likely set at a lower RPM then the intake wants.

Currently there is no dual plane intake for my engine with these heads.
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Old 12-08-2008, 03:49 PM   #23
Super73
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Re: Engine Analyzer and Drag Analyzer.. Willing to put your info in.

Tri5,

You did not have exhaust flow numbers so I used the ones for my heads since our flow numbers were similar. Says youd be best off shifting 1-2 at 7,400 and holding it in second like I was doing and locking your converter.







__________________
------Motor---------------Bottle
60'---1.53---------------??? Best on another pass was 1.43 spinning
1/8---6.58 @ 105.92----6.25 @ 114.4
1/4---10.38 @ 126.97----9.82 @ 132
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Old 12-08-2008, 03:51 PM   #24
Super73
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Re: Engine Analyzer and Drag Analyzer.. Willing to put your info in.

69truck,


Are your intake and exhaust runners ported at all? If so I really need those numbers or it's going to be off quite a bit.
__________________
------Motor---------------Bottle
60'---1.53---------------??? Best on another pass was 1.43 spinning
1/8---6.58 @ 105.92----6.25 @ 114.4
1/4---10.38 @ 126.97----9.82 @ 132
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Old 12-08-2008, 04:33 PM   #25
69trk
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Re: Engine Analyzer and Drag Analyzer.. Willing to put your info in.

yes, they have been ported, and so has my intake. I'll call awesome engines in selbyville de. tomorrow and see if they have any flow numbers.
__________________
http://67-72chevytrucks.com/vboard/s...d.php?t=494388

431 big block times, changing to 5.3 ls with turbo
1.58- 60'
7.18- 1/8th mile@95.18
11.37- 1/4 @115.81
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