has anyone ever ported this part of the intake manifold?
08-29-02, 01:01 PM
#1
Rotary Freak
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has anyone ever ported this part of the intake manifold?
has anyone ported the wall right behind the secondary throttle bodies where the manifold splits into the secondary runners. i was wondering if anyone has tapered it just a few degrees to more of a sharper v shape instead of a flat wall. i know it's not gonna do too much in terms of power and i can't grind away too much material, but every lil' bit helps. anyway i got the time and the manifold off so i'd like some suggestions. thanks.
08-30-02, 12:05 PM
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i don't fully understand not having the the secondary throttle bodies. could someone please explain to me how it would work to not have those. don't they work as normal throttle bodies? what happens when you're off the gas? how is throttle response? what are the major differences in engine operation w/ the the secondary tb's and w/o?
08-30-02, 01:05 PM
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If I understand correctly secondary tb's are only used as part of the "warm up process", AWS. I think that once the car is up to operating temp they are open all the time...
You questions can be answered here, but it looks like the is out of bandwidth for the month.
http://robrobinette.com/double_throttle.htm
Good stuff there, and I can't stand to see it down, I'm gonna mirror it once it comes back up!
K
You questions can be answered here, but it looks like the is out of bandwidth for the month.
http://robrobinette.com/double_throttle.htm
Good stuff there, and I can't stand to see it down, I'm gonna mirror it once it comes back up!
K
Last edited by nocab72; 08-30-02 at 01:17 PM.
08-30-02, 01:48 PM
#6
Old [Sch|F]ool
There's two sets of secondary throttle blades. Only one set is activated by the throttle cable. The other side isn't - those make the transition smoother as well as prevent the secondaries from getting air when the engine is cold.
It's only that second set of secondary throttle blades that are removed.
It's only that second set of secondary throttle blades that are removed.
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09-03-02, 12:56 PM
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well duh, i just looked again this weekend and found that there are indeed 2 sets of secondary throttle bodies. me is stupid.
streetpower, you got any pics of your ported manifold?
streetpower, you got any pics of your ported manifold?
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