47/48vb mod questions

jpschade

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Mar 7, 2012
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58
i have a few valve body questions if anyone is willing to share some info.1) what does it take to make a constant pressure vb? I would imagine theres more to it than just setting tv min stop to desired pressure. 2) are there mods for more line pressure than what a transgo kit would make? although they usually make plenty of pressure3) Is it ok to run a 47re vb with tfod3 in a 48re for fmvb? anyone have any good diagrams/pics of what needs to be plugged and what needs to be drilled to delete gov solenoid/transducer when running fmvb? Ive only built a few vb's with transgo kits but would like to learn as much as I possibly can about different modifications. I have a vbt4000 to test them in so im willing to try anything. If anyone is willing to share some info with me I would really appreciate it. Thanks
 
Bear in mind I still consider myself a beginner on the 47/48s. But since nobody has shared anything yet, yes you can use a tfod3 kit on a 46re or 47re vb and it drops directly into a 48re. As far as constant pressure, how it builds pressure is all really dependant on how you set up the regulator. The pump can only flow so much at lower rpm so if the regulator is constantly dumping lots of volume it will have trouble building pressure in really low rpm. Typically you'll see mvbs like mine that are just constant pressure after certain rpm, and that rpm is dependant on the regulator setup. Goodluck!
 
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