Thanks for the quick replies and for fixing Gearbanger!
They are both FMS parts. Sorry, should have mentioned that.
A 65mm MAF, and 65mm throttle body would be ideal, but out of those two I would go with the 75mm MAF just for a more constant airflow. (though not much)
75mm MAF > 75mm Throttle Body > 65mm Intake
A 65mm MAF, and 65mm throttle body would be ideal, but out of those two I would go with the 75mm MAF just for a more constant airflow. (though not much)
75mm MAF > 75mm Throttle Body > 65mm Intake
Don't understand this post...?
What dont you understand?
A 65mm MAF, and 65mm throttle body would be ideal, but out of those two I would go with the 75mm MAF just for a more constant airflow. (though not much)
75mm MAF > 75mm Throttle Body > 65mm Intake
Don't understand what it is you're trying to say. OP has two mass air meters... One he says, is a 73mm and the other is a 76mm. He believes that they are FMS units and asked which he should use... The 76 or the 73.
So not sure what you post was meant to say:
I get the 65mm throttle portion... the inlet on the intake that the OP listed is roughly that size so the TB should be. Agreed.
More consistent flow from a 75mm MAF? I don't understand that portion as the size of the meter housing has nothing to do with how consistent the air flow is. The last part... I THINK you're just mapping out what the OP described initially to show the mismatch between the throttle body and the intake but I had to look at it for a while before deciding that, that's what you were trying to say.
+1
EXCEPT
I disagree about a 65mm TB. The GT40 family of intakes will take a 70mm TB all day long, with maybe a very slight bit of port matching. Plus, I know I've said it once or twice before... 65mm TBs are retarded.
I'd be of the mindset that if I had a 75mm TB on hand and a GT40 intake, I'd be looking real hard into port matching the intake to fit the 75mm TB... But that's just me. If he ain't got the cojones, that's OK, but I would recommend a 70 for a GT40, not a 65.
Speaking of +1... Put me down as well. IMO 75mm TB is entry level and if you're spending the money on mods then you should be shooting at minimum, for mods that necessitate a 75mm.
out of those two I would go with the 75mm MAF just for a more constant airflow.
Don't understand what it is you're trying to say. OP has two mass air meters... One he says, is a 73mm and the other is a 76mm. He believes that they are FMS units and asked which he should use... The 76 or the 73. So not sure what you post was meant to say:
More consistent flow from a 75mm MAF? I don't understand that portion as the size of the meter housing has nothing to do with how consistent the air flow is.
75mm MAF > 75mm Throttle Body > 65mm Intake
The last part... I THINK you're just mapping out what the OP described initially to show the mismatch between the throttle body and the intake but I had to look at it for a while before deciding that, that's what you were trying to say.
close is only going to leave a step for the air to smash into and distort on the way in. I say stick with 70mm and keep it smooth. Most street combo's won't benefit from a throttle body any bigger than that anyway.I don't think you're going to be able to open that GT40 all the way to 75 MM but you might be able to get close.
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