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quick question about vacuum shifting??

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Old 01-24-2006, 06:17 PM
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Default quick question about vacuum shifting??

can anyone tell me once you have your tranny changed over to vacuum shifting...just what else in the tranny works off of electronics.......the reason I ask is for converter reasons..and also shift points

Thxs.
Old 01-24-2006, 09:37 PM
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If you are talking about vacuum modulation it only controls line pressure
Old 01-25-2006, 04:27 PM
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ok thxs....... so with what your saying even though it's vacuum shifting I can still raise or lower my shift points am I thinking correct?
Old 01-25-2006, 05:00 PM
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Originally Posted by firebirdls1us
ok thxs....... so with what your saying even though it's vacuum shifting I can still raise or lower my shift points am I thinking correct?
Yes the computer still controls the shiftpoints.
Old 01-25-2006, 05:48 PM
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And lock-up...hope this Helps Dave
Old 01-25-2006, 06:51 PM
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i wonder if my 4l80e will be vacuum modulated?
Old 01-25-2006, 09:40 PM
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sure why not....hope this helps......Dave
Old 02-07-2006, 04:38 PM
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I hope i'm on topic, but if i was to install a Stage 4 or 5(Rock-on) with Vacuum modulation, would i need to change any line pressure peramiters with HPTuners, or would i be able to just install and go?

-Joe
Old 02-07-2006, 04:46 PM
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Install and go....hope this helps ...Dave
Old 02-07-2006, 07:10 PM
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thats just whatI'm going to do rock-on level4.......... this has been the third time my tranny has went down since I bought my car in early 2000...... I keep hearing about the rear but I'm still running the stock rear but with 3.73 richmond gears and so far haven't had any problems with it .just the tranny




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