65MM vs 63.5MM F.R.P.P. Throttle Body
12-19-2010, 10:24 AM
#1
Thread Starter
Join Date: Nov 2009
Location: VIRGINIA
Posts: 29
65MM vs 63.5MM F.R.P.P. Throttle Body
I have been searching vendors for the best buy, and some list the GT-500 model as a dual bore 63.5MM, and others as a 65MM?????? Is the 65MM just a newer version or something??????
12-19-2010, 11:07 AM
#2
2nd Gear Member
Join Date: Nov 2009
Location: AZ
Posts: 465
The dual-bore 63.5 mm TB is standard on 2008 Cobra Jet motor. The dual-bore 65 mm TB is standard on the 2010 Cobra Jet motor. Looks like you can buy them now with or without the electronics (sensor and actuator motor).
http://www.fordracingparts.com/parts...KeyField=11688
http://www.fordracingparts.com/parts...KeyField=11987
http://www.fordracingparts.com/parts...KeyField=11688
http://www.fordracingparts.com/parts...KeyField=11987
12-20-2010, 07:22 AM
#5
Thread Starter
Join Date: Nov 2009
Location: VIRGINIA
Posts: 29
Thanks for the replies. I'll get the 65MM. I have heard good things about L&M, but understand that the FRPP comes completely assembled and has virtually no driveability issues, just bolt on and go. Obviously, you guys have had good success with the L&M so i will look at it as well. At present i only have the Steeda CAI, 2.68 Pulley, and Steeda tune which made 519 RWHP, obviously very conservative but runs well. I figure a good TB will round it out and give some bling as well. Thanks again.
12-20-2010, 02:58 PM
#6
4th Gear Member
Join Date: Apr 2008
Location: North Idaho
Posts: 1,440
Thanks for the replies. I'll get the 65MM. I have heard good things about L&M, but understand that the FRPP comes completely assembled and has virtually no driveability issues, just bolt on and go. Obviously, you guys have had good success with the L&M so i will look at it as well. At present i only have the Steeda CAI, 2.68 Pulley, and Steeda tune which made 519 RWHP, obviously very conservative but runs well. I figure a good TB will round it out and give some bling as well. Thanks again.
05-04-2011, 11:11 PM
#8
5th Gear Member
Join Date: Jul 2006
Location:
Posts: 3,834
The stock TB on the gt500 is a 65mm...the L&M is a 66mm...the 65mm begins restricting air at about 14 -15 (according to Brenspeed) lbs of boost...to gain some performance get the high flow plenum with it...I got another .5 lb of boost with just the plenum behind the stock TB...
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