I figured I could just use my thunderbird spacer and the explorer throttle body, but my thunderbird intake had 4 long studs, and the explorer intake has 2 short studs (won't be able to fit thunderbird spacer on). Will the explorer spacer work/fit when I swap? Or is there something I can do to make the thunderbird spacer work on the explorer intake? Thanks!
I'll add pictures later.
The Thunderbird spacer needs to be replaced, or, take it to a machine shop and have them open it to 65mm. It'll be 50mm.....y. Not good. Take the studs from your intake and put them in the Explorer intake, or use bolts like I am. No big deal on that matter.
Just use the Mustang/Thunderbird/Cougar/Mark VII style EGR spacer and throttle body. Bolts right up to the Explorer intake using the stock Mustang/Thunderbird/Cougar/Mark VII studs or bolts.
(http://i198.photobucket.com/albums/aa33/thunderjet302/Thunderbird%20web/20150113_125625_zps37494262.jpg) (http://s198.photobucket.com/user/thunderjet302/media/Thunderbird%20web/20150113_125625_zps37494262.jpg.html)
Thanks guys!
What side of the throttle body needs to be machined?
Not the throttlebody. The EGR spcer. For some reason I thought you had a larger than stock throttle body already.
No point in using the factory Thunderbird 50mm throttlebody. Time to upgrade. At least get a factory Mustang GT t-body and spacer. Theya re about 60mm. The next step up is a 65mm t-body.
^Correct, I wouldn't go to a 65mm TB unless you have something better than stock cam and heads. A 65 is about perfect for GT40 and an alphabet cam or equivalent.
What is your engine combo? Is it all stock? Is it an H.O engine? If it's all stock at the moment, leave it that way. If you plan to swap heads and the rest, wait until you swap the heads and cam before you bolt on the intake. Do it all at once so you don't have to do it twice.
A 60mm throttle body and an h.o. upper doesn't hurt anything on a s.o. motor, why would a 65mm throttle body hurt a s.o. motor with an explorer upper?
Are you asking me? I'm saying.....No reason to put a stock 50mm on an Explorer intake.
Because with 14 pound injectors, there's going to be a lot of extra air that the EEC doesn't account for, or have enough fuel flow...
Maybe it will work, maybe it won't. I wouldn't waste my time with a 65mm on a stock engine though, let alone a lowly SO.
I've got the 65mm on my my combo, and all I have are P heads and an E cam, while it's not yet been ran, it's probably more than enough for the level of power mine will be at.
With just an intake and TB/EGR spacer swap? It'll be fine.
To answer the stud question, just swap the studs. Otherwise, I'm with everyone else, the GT40 intake is for bigger builds than what you've got. Get one, get 65mm spacer and TB, but sit on them til you're ready to HO convert, or it's only really going to add up to 10 HP and a hooty intake noise before you run out of fueling capacity, best case. Worst case, you lean out and piss the motor off and the pistons clock out. S.O. speed density isn't going to be happy with you either. Unfortunately there's not really a safe half-way between where you are and where we're trying to guide you to. Incremental upgrades are a way of life, and that's fine, but first, you're going to have to pay the cost of entry; and that's a H.O. swap/conversion. After that you can move up at whatever pace you're comfortable with.
I'm doing the explorer intake swap, gt40p head swap, and I will be installing a cam. I'm also getting a double roller timing chain and gears, and replacing my water pump.
I'll be installing 19 pounders from an explorer along with the P heads, explorer intakes, and cam.
With a GT40 intake, GT40/GT40P heads, and a cam a 65mm or 70mm throttle body will be fine. Either one should match up well with an Explorer/GT40 upper.
Cliche as it sounds, but..yeah, what he said. ^
;)
Just make sure to have enough exhaust. 2 1/4 minimum, 2" will be just about maxed out on that combo, so will 19# injectors. Think about 24# and MAF maybe a Cobra PCM (X3Z iirc, to make things easy, no tuning)
When I was running GT40P heads and a GT40 intake I had (still have) 2.5" exhaust on the car.