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The Terminator
Engine/Tuning
severe top-end sputter
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<blockquote data-quote="D-Con" data-source="post: 5916066" data-attributes="member: 40944"><p>Boy you guys are right. Put the "HP stock tune" , (meaning user adjustable stock tune) back in with the rear o2 stuff turned off and no other changes; problem solved.</p><p></p><p>I Let off as soon as sputter started. :shrug: Now I just hope I didn't hurt it :nonono: :mj: Didn't think just exhaust would lean it that much with stock pulleys and intake. I'm an idiot.</p><p></p><p>I wanted to try the exhaust and see how it sounded inside the car. I am going to be swapping the Whipple on this weekend I think and already have a tune ordered from Amazon. </p><p></p><p>I learned a valuable(hopefully not costly) lesson, NEVER change anything without having the WBO2 on it to verify everything OK afterward. I'd love to get a dyno-tune, but there's nobody within 500-miles of Salmon, ID that I know of.</p><p></p><p>I pulled a plug (#7 on a GM) and the piston top looks nice and black and the plug was clean but didn't look overheated. I am going to guess the factory wide gap platinum plugs blew out before I could hurt it. I'll have to compression test or leak-down to be sure.</p><p></p><p>Thanks for all of the advice, you guys were right-on.</p></blockquote><p></p>
[QUOTE="D-Con, post: 5916066, member: 40944"] Boy you guys are right. Put the "HP stock tune" , (meaning user adjustable stock tune) back in with the rear o2 stuff turned off and no other changes; problem solved. I Let off as soon as sputter started. :shrug: Now I just hope I didn't hurt it :nonono: :mj: Didn't think just exhaust would lean it that much with stock pulleys and intake. I'm an idiot. I wanted to try the exhaust and see how it sounded inside the car. I am going to be swapping the Whipple on this weekend I think and already have a tune ordered from Amazon. I learned a valuable(hopefully not costly) lesson, NEVER change anything without having the WBO2 on it to verify everything OK afterward. I'd love to get a dyno-tune, but there's nobody within 500-miles of Salmon, ID that I know of. I pulled a plug (#7 on a GM) and the piston top looks nice and black and the plug was clean but didn't look overheated. I am going to guess the factory wide gap platinum plugs blew out before I could hurt it. I'll have to compression test or leak-down to be sure. Thanks for all of the advice, you guys were right-on. [/QUOTE]
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The Terminator
Engine/Tuning
severe top-end sputter
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