adirondac blue
TY 4 Stroke Junkie
The boost gauge works fine up untill wide open and then flutters between 14 and 16 , shooting for 15. Any thoughts on fluttering.
TurboTony
Extreme
What gauge are you using, standard or liquid filled?
Also how do you have it plumbed in?
Tony
Also how do you have it plumbed in?
Tony
adirondac blue
TY 4 Stroke Junkie
It is a auto meter and it is not liqiud filled. Plumbed straight to the intercooler.
TurboTony
Extreme
You should plumb it to the carb boot fittings but use all four fittings or your flutter will be very bad.
Plumbed into the intercooler you are measuring the pressure before the carbs, it will usually be a pound or two lower at the actual manifold area due to some pressure loss, of course that depends on throttle position.
The liquid filled gauges are a PITA if you are changing elevation all the time. You need to crack the bleed screw to adjust for different ambient pressure.
I use a regular non liquid gauge and it is quite stable at boost, some fluctuation at WOT but who's really watching thier boost gauge for more than a quick glance at 14 psi
Tony
Plumbed into the intercooler you are measuring the pressure before the carbs, it will usually be a pound or two lower at the actual manifold area due to some pressure loss, of course that depends on throttle position.
The liquid filled gauges are a PITA if you are changing elevation all the time. You need to crack the bleed screw to adjust for different ambient pressure.
I use a regular non liquid gauge and it is quite stable at boost, some fluctuation at WOT but who's really watching thier boost gauge for more than a quick glance at 14 psi
Tony
Ted Jannetty
TY 4 Stroke God
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Could be your wastegate popping off and on the seat, how tight is the wastegate rod?
