Fox T-Bird/Cougar Forums

Technical => Engine Tech => Topic started by: 83TB on March 13, 2013, 09:43:12 AM

Title: 1991 mustang HO Throttle body size?
Post by: 83TB on March 13, 2013, 09:43:12 AM
I am looking for a egr plate to put on factory throttle body, is it a 65mm or 60mm, I want to be able to have a place for throttle cable to mount to?
Title: 1991 mustang HO Throttle body size?
Post by: motormenace on March 13, 2013, 10:06:07 AM
59mm.....Ok, 60mm is easier. :P
Title: 1991 mustang HO Throttle body size?
Post by: STANG8U on March 13, 2013, 10:46:14 AM
Yea a exsplorer is 65
Title: 1991 mustang HO Throttle body size?
Post by: 83TB on March 14, 2013, 12:51:38 AM
Can find any plates for a 60mm, just the little block off plate for the back side, i was wanting to get the spacer plate so I could use the mounting holes for throttle cable.
Title: 1991 mustang HO Throttle body size?
Post by: vinnietbird on March 14, 2013, 08:19:12 AM
Here's a stock Mustang piece on Ebay, I'm sure there are many more........

http://www.ebay.com/itm/FORD-MUSTANG-EGR-SPACER-86-87-88-89-90-91-92-93-GT-5-0-HO-/330879511929?pt=Motors_Car_Truck_Parts_Accessories&hash=item4d09f4ad79&vxp=mtr

You can always take your smaller one to a machine shop and have them open it up for you.
Title: 1991 mustang HO Throttle body size?
Post by: BadShoe on March 14, 2013, 03:34:02 PM
Summit sells their own brand for 60, 65 and 70mm egr plates with cable bracket boss drilled ready to install, not too pricey.
Title: 1991 mustang HO Throttle body size?
Post by: 83TB on March 14, 2013, 05:22:44 PM
This is something I am looking for but for the 60mm, vinnie I have the factory one, put was wanting to take it off.

http://www.ebay.com/itm/86-93-Mustang-5-0-EGR-Eliminator-70mm-BILLET-70-mm-65mm-/350718964982?pt=Motors_Car_Truck_Parts_Accessories&hash=item51a87ab4f6&vxp=mtr
Title: 1991 mustang HO Throttle body size?
Post by: vinnietbird on March 14, 2013, 05:28:51 PM
Quote from: 83TB;411194
This is something I am looking for but for the 60mm, vinnie I have the factory one, put was wanting to take it off.

http://www.ebay.com/itm/86-93-Mustang-5-0-EGR-Eliminator-70mm-BILLET-70-mm-65mm-/350718964982?pt=Motors_Car_Truck_Parts_Accessories&hash=item51a87ab4f6&vxp=mtr

I have one of these from this company but it's 2 inches thick. I just installed it a few days ago with my 65mm throttle body and GT-40 intake.
Title: 1991 mustang HO Throttle body size?
Post by: turbotrav on March 14, 2013, 08:03:43 PM
I find it abit funny that ford equipped the explodder 5.0 with just about everything better except the cam...

Makes a great deal for fox owners...

Travis
Title: 1991 mustang HO Throttle body size?
Post by: vinnietbird on March 14, 2013, 08:35:32 PM
They had 10 years after the Fox Birds to make those changes.
Title: 1991 mustang HO Throttle body size?
Post by: 83TB on March 14, 2013, 09:34:28 PM
If I go with a 65mm, will I have to change anything else?  And will a 65mm fit the factory upper or will it have to be modified?
Title: 1991 mustang HO Throttle body size?
Post by: thunderjet302 on March 15, 2013, 12:42:49 AM
I think the opening is 60mm on the stock HO upper but it could be in the 60-65mm range. You may have to open it up a bit. I know the opening on a Explorer/GT40 is 69.70mm, at least both of the ones I have are. I measured them with dial calipers. I've got a 70mm on the Thunderbird and I didn't bother to make the opening bigger as I figure .30mm of air can't add that much power. If you measure the opening and it's 64.30mm or some other number you probably won't gain much by making the opening bigger. If it is 60mm yeah open it up.
Title: 1991 mustang HO Throttle body size?
Post by: Kitz Kat on March 15, 2013, 08:49:46 AM
Vinnie's famous Quote!! "I have one of these from this company but it's 2 inches thick. I just  installed it a few days ago with my 65mm throttle body and GT-40 intake."

Vinnie changed his intake!! You got that down to 10 min. yet?
Title: 1991 mustang HO Throttle body size?
Post by: thunderjet302 on March 15, 2013, 12:04:50 PM
Quote from: Kitz Kat;411241
Vinnie's famous Quote!! "I have one of these from this company but it's 2 inches thick. I just  installed it a few days ago with my 65mm throttle body and GT-40 intake."

Vinnie changed his intake!! You got that down to 10 min. yet?

Vinnie changes intakes like I change engine oil ;).
Title: 1991 mustang HO Throttle body size?
Post by: vinnietbird on March 15, 2013, 09:49:26 PM
Well, I can say this, it doesn't take me long to swap an intake. I only had to change the upper, and it didn't take 10 minutes. More like 5 minutes......literally. But to be fair, the GT-40 already had the spacer and t-body bolted on before I actually started.
Title: 1991 mustang HO Throttle body size?
Post by: thunderjet302 on March 16, 2013, 06:44:58 PM
Just swapping the upper is a 15 minute job, so yeah as fast as an oil change ;).