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Slight bucking in semi

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Old May 1, 2008 | 06:02 PM
  #1  
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AVB
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Default Slight bucking in semi

Wondering if you folks would be kind enough to check this out and see if it's something obvious...


I've started running in semi OL and actually find around town driving to have improved. What I've noticed, however, is that when I just get in to throttle after a decel to either maintain and slightly accelerate, I get a noticeable bucking. Also, when slowing to a stop I notice rpms go from 800 to 1k until about 4-5 mph and then it steadies. The latter rarely happened when in pure OL.

Anyways, I've attached the last tun and a log which was done from cold to hot and the drive in to work.

Any help or direction would be most appreciated..


Arnel
Attached Files
File Type: zip
Log_0015.zip (724 Bytes, 11 views)
File Type: tun
incsemi_pe0002.tun (474.3 KB, 62 views)
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Old May 4, 2008 | 05:47 AM
  #2  
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From: Houston
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I would suspect the throttle cracker &/or follower are allowing a bit too much air in at the problem spots.
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