LT1-LT4 Modifications 1993-97 Gen II Small Block V8

weird dyno graph...suggestions?

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Old 04-24-2008, 08:35 AM
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Default weird dyno graph...suggestions?



More details here...

http://www.camaroz28.com/forums/showthread.php?t=597625

Most of my pulls looked like the green lines, VERY wavey.

Could it be floating the valves? Crane dual springs setup by Lloyd with a comp 218/224 xfi cam and 8lbs of boost(although does it with 4lbs also)

Here is the graph vs engine speed, you can see the engine speed DROP at wot.



I have the two dyno jet file if anybody wants them to play around with. :thumbup:

RPM VS TIME...



You can see it drop rpm, which I can see on the datalogs and tach at wot on the street.
Old 04-24-2008, 08:49 AM
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Old 04-24-2008, 09:00 AM
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That second one looks like my 4 year old drew it LMAO
Old 04-24-2008, 04:52 PM
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If BOTH were like the second one, I'd say someone left the factory 105mph govenor on it (non Z-rated tire cars had that), but the green one is like 118, so that doesn't make much sense.

That second one IS quite unique...
Old 04-24-2008, 06:09 PM
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we def know it wasn't spinning on the dyno....usually when something falls off it seems to be fuel related but the car has plenty of fuel or should atleast



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