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The Terminator
Engine/Tuning
Dyno'd & Problems Uncovered...
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<blockquote data-quote="SvilleCobra" data-source="post: 10119899" data-attributes="member: 50557"><p>Dyno'd the Cobra yesterday after 5 years with a tune I inherited from previous owner. I guess you don't trust dyno sheets a previous owner passed on to you.</p><p></p><p>The sheet from 2005 he gave me showed 485 rwhp/484 rwtq...and good air/fuel in the range of 11-14. </p><p></p><p>Yesterday....rwhp was 433 and rwtq was 400. Air/Fuel was fine until 3500 rpms and then dives below 9. To top it off, when I pull my dipstick, the oil has a slight gasoline smell to it. </p><p></p><p>The dyno guy wants to tune the car badly...was all excited about it...for $625.00 w/ a handheld included. </p><p></p><p>Advice Needed......does a tune solve the problems of RWHP/RWTQ/Gas smell in oil and are there any hidden problems I should be aware of or have checked out?</p><p></p><p>How does a previous tune degrade so badly when nothing has ever been changed on the car since last tune? Does a tuned car have to be "reset" every so often?</p><p></p><p>Can I drive the car conservatively until I get the work done?</p><p></p><p>Thanks for all feedback....</p></blockquote><p></p>
[QUOTE="SvilleCobra, post: 10119899, member: 50557"] Dyno'd the Cobra yesterday after 5 years with a tune I inherited from previous owner. I guess you don't trust dyno sheets a previous owner passed on to you. The sheet from 2005 he gave me showed 485 rwhp/484 rwtq...and good air/fuel in the range of 11-14. Yesterday....rwhp was 433 and rwtq was 400. Air/Fuel was fine until 3500 rpms and then dives below 9. To top it off, when I pull my dipstick, the oil has a slight gasoline smell to it. The dyno guy wants to tune the car badly...was all excited about it...for $625.00 w/ a handheld included. Advice Needed......does a tune solve the problems of RWHP/RWTQ/Gas smell in oil and are there any hidden problems I should be aware of or have checked out? How does a previous tune degrade so badly when nothing has ever been changed on the car since last tune? Does a tuned car have to be "reset" every so often? Can I drive the car conservatively until I get the work done? Thanks for all feedback.... [/QUOTE]
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