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Old 03-11-2016 | 10:02 AM
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Default EFI airflow..

I was wondering, Does it matter which direction a progressive 4 barrel style throttle body is mounted on the intake ?

I'm almost done rigging my engine and have found that the throttle linkage arm will interfere with the carb hat if I put my intercooler on the port side of the boat...


My throttle body is a Dominator style with progressive linkage. The primaries open about 1/4 of the way before the secondaries...

Just wondering if I can turn it backwards or will it cause issues ?
THANKS !

Doug


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Old 03-11-2016 | 10:54 AM
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With boost, it definitely won't matter.
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Old 03-11-2016 | 10:57 AM
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No issue. It's not stagger jetted. LOL.
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Old 03-11-2016 | 11:13 AM
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Originally Posted by SB
No issue. It's not stagger jetted. LOL.

LOL... Hey, so I'm a little nervous..

Been building this engine for 4 years and should FINALLY be ready for Dyno in the next couple of weeks...
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Old 03-11-2016 | 11:16 AM
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BTW: If you have some room, they make spacers to go under the hat. I believe in 1" increments or so.
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Old 03-11-2016 | 11:18 AM
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Agree with above, no big deal. Definitely want to keep the linkage progressive or it gets a little trickier to tune the part throttle transition unless you're running a bypass valve. We messed around with clocking the hat because I'd heard it could cause issues, it didn't have any noticeable effect.
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Old 03-11-2016 | 12:07 PM
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Originally Posted by SB
BTW: If you have some room, they make spacers to go under the hat. I believe in 1" increments or so.
Haven't had it in the boat yet. (will set it in this weekend for a trial fit) but my initial measurements come out to it being 2" taller than my sun pad
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Old 03-11-2016 | 07:54 PM
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Looks like I won't need to turn the throttle body after all...

With the carb hat turned towards the rear, the intercooler hose will fit under the exhaust if I relocate my oil cooler to the floor...


fun stuff...


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