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chugging/bucking at cruising speed

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Old 10-28-12, 09:18 PM
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Don't hate my V8

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chugging/bucking at cruising speed

hi

my car will buck/chug at cruising speeds/rpm. it does have the emissions/rats nest removed and a restrictor (.030" opening).

the car still pulls ~10inHg at curising speeds and has good compression (15-17inHg at idle and 90+psi all faces both rotors)

the car starts and idles smooth so i doubt its a vacuum leak. it has new (less then 1k miles) 800cc deatsch werks primaries tuned with rtek 1.8 and AFC NEO. AFRs stay in "Open loop"? at 14.4-6. car idles at 13:1@180-185f with -5% correction.

only thing i haven't really checked is the plugs (i do run premix and ngk 9s in all 4 positions)
Old 10-28-12, 10:37 PM
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Tps?
Old 10-29-12, 08:59 PM
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Originally Posted by -RotorDemon-
Tps?
its within spec
Old 10-30-12, 01:35 AM
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I have the same issue, and from what ive found no one has found a fix for it yet....
Old 10-30-12, 01:40 AM
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My bet is the tune
Old 10-30-12, 08:34 AM
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the rtek tune even though it cruises in open loop like it normally should?
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