Fox T-Bird/Cougar Forums

Technical => Engine Tech => Topic started by: Moonmount on March 14, 2016, 01:31:38 AM

Title: Bit of curiosity here
Post by: Moonmount on March 14, 2016, 01:31:38 AM
What size is the throttle body opening on the SO upper intake?
Title: Bit of curiosity here
Post by: ZondaC12 on March 14, 2016, 11:36:18 AM
50 mm.
Mustang H.O. is 60mm.  90's 5.0 Explorer/Cobra Mustang/ "GT40" spec is 65mm.
Title: Bit of curiosity here
Post by: TurboCoupe50 on March 14, 2016, 02:09:54 PM
The intake opening is closer to 60mm on the SO uppers I've seen, throttle body and EGR spacer are 50mm... HO opening are larger than SO...
Title: Bit of curiosity here
Post by: ZondaC12 on March 14, 2016, 03:05:21 PM
Oops yeah he did say "on the intake". Would make sense that the intake manifold itself would have a slightly larger opening.
Title: Bit of curiosity here
Post by: thunderjet302 on March 15, 2016, 03:20:45 PM
Intake manifold openings are as follows:

SO upper is ~60mm

HO upper is ~65mm

Explorer/GT40 upper is ~70mm
Title: Bit of curiosity here
Post by: Moonmount on March 16, 2016, 03:32:26 PM
Neat thanks guys
Title: Bit of curiosity here
Post by: V8Demon on March 17, 2016, 08:30:54 AM
....and the Trick Flow Streetheat/Trackheat pieces have a 75 mm opening if anyone wanted to know.....