Install of Ford 90MM Throttle Body
10-06-2013, 09:46 PM
#1
12 Second Truck
Thread Starter
Install of Ford 90MM Throttle Body
Whether supercharged or stock anyone can benefit from this info. Restriction in your intake and how to find it. A simple vacuum gauge is all you need :http://www.tuneruniversity.com/blog/...iction-part-i/
Some time ago I became curious if there was any restriction in my intake. So I plumed a vacuum gauge in to it and went for a ride. Around 11psi of boost I was measuring 1 inch of vacuum and by 12psi I ha 1.5-2" of vacuum. Acccording to test done by Kenne Bell this each inch of vacuum in the intake is good for 1/2 pound of boost which cost hp. The Whipple inlet measures 3.5" in diameter and I had a 80mm throttle body. So the throttle body was even more restriction. This got me looking. I found a 90mm unit made by Ford but designed for the new Mustangs. I ordered one and began trying to make it fit the truck this past Tuesday. It's an impressive piece.
Some time ago I became curious if there was any restriction in my intake. So I plumed a vacuum gauge in to it and went for a ride. Around 11psi of boost I was measuring 1 inch of vacuum and by 12psi I ha 1.5-2" of vacuum. Acccording to test done by Kenne Bell this each inch of vacuum in the intake is good for 1/2 pound of boost which cost hp. The Whipple inlet measures 3.5" in diameter and I had a 80mm throttle body. So the throttle body was even more restriction. This got me looking. I found a 90mm unit made by Ford but designed for the new Mustangs. I ordered one and began trying to make it fit the truck this past Tuesday. It's an impressive piece.
Last edited by Blown Ford; 10-06-2013 at 10:03 PM.
10-06-2013, 09:52 PM
#2
12 Second Truck
Thread Starter
The throttle body proved to be to large to mount right side up or upside down. So I began looking at the possibility of an adapter plate or mounting it sideways. As it turn out mounting it sideways proved to be beneficial for the new 4" intake ducting I planed to use. I made a template, marked spots I would need to drill and tap for the mounting screws, and proceeded.
I also had to port the Whipple inlet to match the whopping 90mm opening. Had this completed Wednesday and was able to use some ducting I had for a test drive.
I also had to port the Whipple inlet to match the whopping 90mm opening. Had this completed Wednesday and was able to use some ducting I had for a test drive.
Last edited by Blown Ford; 10-06-2013 at 09:54 PM.
10-06-2013, 10:00 PM
#4
12 Second Truck
Thread Starter
This throttle body performed better then I could have imagined. It is perfectly calibrated out of the box. Idle was perfect, air/fuel ratios were great, and throttle response was much improved.
Yesterday I visited a local boat yard and stumbled across some 4" Marine Wet Exhaust hose. Over kill for my needs but the gentlemen at the yard let me have a scrap piece they had removed from a boat. It cleaned up nicely. I acquired an elbow from Advance Auto and some 4" clamps from Lowes. Here's the end result.
Yesterday I visited a local boat yard and stumbled across some 4" Marine Wet Exhaust hose. Over kill for my needs but the gentlemen at the yard let me have a scrap piece they had removed from a boat. It cleaned up nicely. I acquired an elbow from Advance Auto and some 4" clamps from Lowes. Here's the end result.
10-06-2013, 10:18 PM
#6
12 Second Truck
Thread Starter
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10-06-2013, 10:45 PM
#8
12 Second Truck
Thread Starter
10-06-2013, 11:05 PM
#9
This throttle body performed better then I could have imagined. It is perfectly calibrated out of the box. Idle was perfect, air/fuel ratios were great, and throttle response was much improved.
Yesterday I visited a local boat yard and stumbled across some 4" Marine Wet Exhaust hose. Over kill for my needs but the gentlemen at the yard let me have a scrap piece they had removed from a boat. It cleaned up nicely. I acquired an elbow from Advance Auto and some 4" clamps from Lowes. Here's the end result.
Yesterday I visited a local boat yard and stumbled across some 4" Marine Wet Exhaust hose. Over kill for my needs but the gentlemen at the yard let me have a scrap piece they had removed from a boat. It cleaned up nicely. I acquired an elbow from Advance Auto and some 4" clamps from Lowes. Here's the end result.