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Message: [QUOTE="imelmo, post: 1213725, member: 110"] So I still have the slowest 900+ hp truck on the planet. LOL The truck has an issue where launching it from a stop or very slow speed, it feels as though it blows straight threw the converter even though the CTS shows that it is being commanded to lock up. The harder I launch it, the worse it is. My fastest passes now are "launching" in 2wd on fuel without building any boost (13.5 @ 107 iirc). Launching it in 4wd on da juice gets me a 16.? @ 80. :doh: And it only hits about 25-30psi like that all the way down the track as opposed to the 52-54psi it makes rolling into it after the converter is already locked. Things that have been changed trying to find the issue: new torque converter new trans wiring harness trans gone thru/upgraded by Twisted new lock up solenoid I don't know what else is left that it could be. It's fine on the dyno because it's already in 4th and locked when you hit it, but from a dig it's just blowing straight thru either the converter or the trans. And it wasn't an issue before the build. At wot it would lock up and go (11.8's-11.9's at 113). So what are some ideas as to what it could be? I really don't feel like swapping in a 4R100 because that will take up the money I was going to use to upgrade my Z, but I also don't want to get more frustrated and burn the truck to the ground. :fustrate: I know the power that the dyno said is there is in the engine because you can definitely feel it when it does lock up and makes full boost, just need to figure out the rest of it. Any help would be greatly appreciated! Some free crawfish/shrimp seasoning to whomever figures it out! LOL :thumbup: . [/QUOTE]