more HP?
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Lead Driver
Joined: Sep 2003
Posts: 7,015
Likes: 208
From: SoCal
Those underdrive pulleys really won't do much on an Aerostar. They're more effective if you really rev your engine all the time. The Aero engines probably won't go past 4k or 5k rpms. The rest of the time they will undercharge your battery.
In order for the bigger throttle body to do anything, you need to bore out the openning of the intake manifold to match. The stock intake openning is the most restrictive part of the intake on these engines. That's a simple operation that I'm going to try with a salvage yard intake that I'll have to go get.
As for the larger MAF sensor, think about this: The stock sensor is the same size used by the Mustangs with the 5.0L HO engines that put out over 200 HP and 300 lb-ft torque. It's plenty for these smaller engines.
In order for the bigger throttle body to do anything, you need to bore out the openning of the intake manifold to match. The stock intake openning is the most restrictive part of the intake on these engines. That's a simple operation that I'm going to try with a salvage yard intake that I'll have to go get.
As for the larger MAF sensor, think about this: The stock sensor is the same size used by the Mustangs with the 5.0L HO engines that put out over 200 HP and 300 lb-ft torque. It's plenty for these smaller engines.
Post Fiend
Joined: Jan 2000
Posts: 5,860
Likes: 4
From: Metro Detroit (Redford)
Setting up the timing and running premium fuel seems to give the 3.0 some extra kick. Other than that it's really weak point is off the line up to about 20 mph where you can get the rpms up. Therefore a lower gear (higher number) rear end would IMO give the most bang for the buck. Not sure what, 4.10, 4.50 ....
