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Thread: Do these dyno sheets look right?
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11-16-2008, 05:18 PM #1
- Join Date
- Nov 2008
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- Sioux Falls, SD
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- 8
Red- 1998 Firebird Formula
Do these dyno sheets look right?
They dont look right to me but what does everyone else think?
First one is a Trex car with 4.11 gears through a 12 bolt and M6:
This one is the same car with the only change being a TH350:
Well first of all were the AF Ratios are on a dyno sheet the scale is wrong. Second Ive never seen a car that had the torque instantly jump then steadily loose it all the way to red line. I guess it just doesnt look right to me.
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11-20-2008, 06:57 AM #2
- Join Date
- Jul 2007
- Location
- Southeast Texas
- Posts
- 84
Black- 96 Z28Ttops, 98 Z28 Conv.
Yeah thats F*cked buddy, unless theres a fault in your tranny, or rear end, changing those items shouldn't increase/decrease HP or TQ numbers
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11-20-2008, 07:17 AM #3
- Join Date
- Sep 2007
- Location
- Denton, Texas soon Lafayette, Louisiana
- Posts
- 2,956
Blue- 2002 Z28 Camaro M6
It is very normal to see RWHP go down with a switch from a manual to auto. As for the torque spike at the beginning I would most likely blame that on the converter some how.
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11-20-2008, 07:46 AM #4
the first graph, someone has forgotten PE delay, so enrichment settles in slowly at the beginning of the pull. The second graph shows that his dyno software is old, because it is reading falsely high tq from the stall speed running up on that unlocked converter. The later WinPep releases don't have the flash peak at the beginning to that extent.
What is it that is supposed to be wrong with them or the AFR readout?
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11-21-2008, 07:37 AM #5
- Join Date
- Nov 2008
- Location
- Sioux Falls, SD
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- 8
Red- 1998 Firebird Formula
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11-21-2008, 07:39 AM #6
- Join Date
- Aug 2005
- Location
- Thornton, CO
- Posts
- 23,773
Red Tint Jewelcoat- 2008 Trailblazer SS
Looks right to me.
That automatic is sucking driveline power down. BUT making the car faster at the track.
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11-21-2008, 11:38 AM #7
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11-21-2008, 02:14 PM #8
- Join Date
- Nov 2008
- Location
- Sioux Falls, SD
- Posts
- 8
Red- 1998 Firebird Formula
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11-22-2008, 04:42 PM #9
?
yes....
what do you see?
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11-22-2008, 09:13 PM #10
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11-23-2008, 08:06 PM #11
- Join Date
- Nov 2008
- Location
- Sioux Falls, SD
- Posts
- 8
Red- 1998 Firebird Formula
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