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Old 07-22-2013, 04:37 PM
MikeyOrange88 MikeyOrange88 is offline
TT Enthusiast
Join Date: Jul 2012
Boat: 1988 Tristar 190 Sport (Closed Bow), 351W w/ GT-40's
Location: Southeast
Posts: 303
Originally Posted by mxhideout View Post
Pic was before it was moved. Ok, because when we moved it to WOT they would open 2/3 of the way. So you're saying that vacuum opens them the last 1/3?
Secondaries are only operated by the vacuum, no mechanical action on this setup. However, if you are able to develop more throttle/rpm by moving the throttle cable connection point, and a consequently a higher vacuum, then they would open more/wider. There are also several different springs that can be used within the secondary vacuum assembly to alter when they start opening.
1988 Tristar 190 Sport, 351W w/GT-40's, 1:1 Velvetdrive
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