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Analyze My Dyno Graph

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Old Nov 21, 2006 | 02:44 PM
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Default Analyze My Dyno Graph

Lines look a little shaky and the torque curve drops off pretty steep at low rpm. What do you dnyograph guru's see as good versus bad when you look at my graph below? How would you categorize it this graph:

1. Looks about average?

2. Looks above average?

3. Sucks like a Hoover?

Attached Thumbnails Analyze My Dyno Graph-dyno11212006.jpg  
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Old Nov 21, 2006 | 03:35 PM
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We need more info: what intake, what headers, what exhaust setup, tune, pulley, throttle body, etc.
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Old Nov 21, 2006 | 05:55 PM
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Would've liked to have seen where she was at down low. Look strong up top. However we need details on your set up...
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Old Nov 21, 2006 | 06:03 PM
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Looks very strong for a a4 car with a stall unlocked through a 12 bolt!!!

Depending on race weight you should have a very low 11 sec car or even high 10`s


What intake are you running?
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Old Nov 21, 2006 | 06:23 PM
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I you guys look close his mods are at the bottom of the Dyno Sheet.


I made 400 RWHP & 365 RWTQ with Yank PT4400 a comp cam 605 Intake 610 Exhaust 236-242 Duration 115 Lobe Sep & stock heads & LS6 Intake & EWP & Pully Longtubes & 3inch X-Pipe

I run 7.28 @ 94 mph in the 1/8 with a 1.55 60ft. So I would say you are a sold low 11 sec 1/4 mile car

Last edited by SEB; Nov 21, 2006 at 06:28 PM.
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Old Nov 21, 2006 | 06:26 PM
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I must be blind cause I dont see the intake listed
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Old Nov 21, 2006 | 06:26 PM
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Originally Posted by offaxis
Looks very strong for a a4 car with a stall unlocked through a 12 bolt!!!

Depending on race weight you should have a very low 11 sec car or even high 10`s


What intake are you running?

Hey I see you kept your car. Good to hear. What combo did you go with this time. I remember you saying your car was putting down some good times when we talked.

This is Sebastian from Texas. I would like to talk through pm's with you about this setup I am going with & see what you think.
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Old Nov 21, 2006 | 06:27 PM
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Originally Posted by offaxis
I must be blind cause I dont see the intake listed
Here you go bud,


Last edited by SEB; Mar 10, 2009 at 11:04 AM.
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Old Nov 21, 2006 | 06:30 PM
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thanks man in my old age my eyes arent what they once were lol
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Old Nov 21, 2006 | 06:35 PM
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JEB99TA,

I would definitly advise a fast 90mm intake. I made very simular numbers to yours with a ls6 intake and picked up 20 hp when i made the swap!! But Im sure you already had it on your list
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Old Nov 21, 2006 | 06:37 PM
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I'm not an expert, but to me I ask:

Why is torque taking such a dump @ 5300 rpms..
That curve is like a nose dive..

Also, looks a little rich...
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Old Nov 21, 2006 | 06:40 PM
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Is that on a locked converter?
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Old Nov 21, 2006 | 07:10 PM
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Says unlocked converter...at first I thought it looked like a nose dive but then look at the torque at 6k it is still over 325ft/lbs nearly 350ft/lbs. The scale is a little deceptive because it goes in 25ft/lbs increments for the big marks and 5ft/lbs for the little ones and the bottom of the scale is 275ft/lbs. If you made it go by 10's then it would look flatter. JMO
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Old Nov 21, 2006 | 07:35 PM
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Been packing for a vacation for the Thanksgiving holiday ... my apologies for not coming on sooner to answer any questions. Had no idea my graph would get such great attention. I appreciate you all weighing in on it.

The dyno run was this morning. The graph shown is with the converter UNlocked. Mike tried to lock it and he hit 421+ RWHP, however, the Yank decided to have a 'blonde moment' and wouldn't lock up completely. He seemed to think it might have another 10-15 left in it if it would lock up like it's supposed to, but, he says it's really hard to say.

I'm thinking Long Tubes and a 90/90 setup ... as was mentioned. My motor is not a big cube, so, I'm not sure how much power I would net from a 90/90 swap. Anybody else get substantial gains from going LS6/ported stock throttle body to a 90/90 combo?
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Old Nov 21, 2006 | 08:51 PM
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I say your right on target mabe a little better than average with your mods.
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Old Nov 21, 2006 | 11:05 PM
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The roughness in the graph says Out of balance wheel or out of round wheel/tire assembly. See that alot.
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Old Nov 22, 2006 | 03:12 AM
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Originally Posted by CollinsAutomotive
The roughness in the graph says Out of balance wheel or out of round wheel/tire assembly. See that alot.
Interesting ... never thought about that. I'll double-check the suspension, but, I believe everything is tight and in good order. I'll have the wheels checked when I get back from Jersey next week. Thanks for the insight ... sure would like smooth out the wobbly line on my dyno graph.
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