manual VB not working right. advice please
05-03-2007, 12:51 AM
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manual VB not working right. advice please build a 4l60e manual VB tranny and installed.
setup is LT based motor with a procharger
tranny is 4l60e with the VBP-VAC, 46-mod, manual Valvebody mod kit
i got told to install the VBPvac for my setup becuase you dont want a possitive pressure on the accumulator inside the 4l60e with manual vb. but yet when i am in my car all the way it doesnt seem to want to shift. i know that there has to be some type of vacuum on it but no as much as for idle. i am going to change the vbpvac for a different type of one way diaphram but if that doesnt work i really dont know what else to do. the only way it shift at wide open throttle is when i shift i have to let out on it. which in turn my words i think its due to a vacuum problem on the accumulator for the fact the only way that i dont have vacuum is when i am at WOT and i have possitive prssure from the supercharger. any advise and or opinions on what to check for would be highly appriciated.
setup is LT based motor with a procharger
tranny is 4l60e with the VBP-VAC, 46-mod, manual Valvebody mod kit
i got told to install the VBPvac for my setup becuase you dont want a possitive pressure on the accumulator inside the 4l60e with manual vb. but yet when i am in my car all the way it doesnt seem to want to shift. i know that there has to be some type of vacuum on it but no as much as for idle. i am going to change the vbpvac for a different type of one way diaphram but if that doesnt work i really dont know what else to do. the only way it shift at wide open throttle is when i shift i have to let out on it. which in turn my words i think its due to a vacuum problem on the accumulator for the fact the only way that i dont have vacuum is when i am at WOT and i have possitive prssure from the supercharger. any advise and or opinions on what to check for would be highly appriciated.
