Explorer EFI conversion - TB clearance

[904Bronco]

So I have a 68 EB with a 1998 5.0 and it's 2wd 4R70W from an Explorer.

I am close to starting it, but... but the TB IAC touches the hood.

- I have a 1" body lift and do not want to go higher
- EGR has been retained, so I need to keep the 90* Elbow
- I really would prefer to not cut up the 90* elbow and reweld
- I would prefer not to rotate the mounting of the TB

Anyone changed the IAC to something different? From a Different application? (Changing the plug is doable)

Any other options that I missed in my search?

Thanks.

 

[Ourobos]

SN95 style mustang throttle body and elbow? It lowers all that

 

[904Bronco]

SN95 style mustang throttle body and elbow? It lowers all that

Does it get it EGR gases from the exhaust manifold or is it internally routed? Explorer is external from Pass exhaust manifold...

 

[EFI Guy]

Any chance you can rotate the throttle body?

 

[Ourobos]

Some explorers are external.. But the SN95 is internal (as is pre-97 explorer).

 

[904Bronco]

Any chance you can rotate the throttle body?

Yes, but then I cannot use the factory brackets and the 90's Bronco throttle cable that I have...

 

[904Bronco]

By the way...

Mustang valve covers (86-93) do not work with factory Explorer EFI. Filler neck is in front TB inlet.

 

[904Bronco]

Some explorers are external.. But the SN95 is internal (as is pre-97 explorer).

The 98 Explorer is external

 

[EFI Guy]

You might be able to get creative with either the Fox spacer or the SN-95 elbow. Both would require some form of adapter plate for the EGR and blocking the internal passages...

Seems like fabbing a new throttle cable bracket would be much easier, "IF" that would give you enough clearance.

Got any current pictures?

 

[BroncoBernie]

iac

On my bronco I adjusted the hood hinges up a little and was enough to clear I have a little different set up but if it's close you could try this.

 

[904Bronco]

You might be able to get creative with either the Fox spacer or the SN-95 elbow. Both would require some form of adapter plate for the EGR and blocking the internal passages...

Seems like fabbing a new throttle cable bracket would be much easier, "IF" that would give you enough clearance.

Got any current pictures?

It is the IAC that is rubbing the hood, no current pictures, as I was doing Mock-up today in 100* temps. My dad passed 3 weeks ago and the Bronco just fell off the plate. Just need an exhaust system installed (next week) and to bolt on upper intake and it should fire. ;D I just will not be able to close the hood

 

[EFI Guy]

Sorry to hear about your dad! That sucks. I lost mine a couple years ago, but it still seems like yesterday.

If you could angle the throttle body down just a bit do you think it would clear? My thinking is a Fox spacer between the TB and the Explorer elbow but milled at an angle....?

 

[904Bronco]

Sorry to hear about your dad! That sucks. I lost mine a couple years ago, but it still seems like yesterday.

If you could angle the throttle body down just a bit do you think it would clear? My thinking is a Fox spacer between the TB and the Explorer elbow but milled at an angle....?

Garry,

I have given this some thought, even branching off into wild ideas like buying a 2" body lift and cutting it down to 1.5" to get the space needed.
Spacer - yeah looked at that... It still would be too high. Just with the hood latched with the safety latch there is contact.
Looked at the 45* adapter, $100.00+ and then modify it. It places the TB in a different location but closer to the fender, which means less clearance as you move away from the center of the hood.
I feel fortunate, no clearance issues with the lower idler pulley or back firewall. But I cannot make this work in the stock location
I want to keep this simple, trying to avoid making one-off stuff. I will continue to let others chime in with ideas, but it looks like rotating the TB and using a Lokar throttle cable would be the simplest way to get this to work.

Doug

 

[needabronco]

I'm using an IAC from a Crown Vic and It's installed backwards (I vaguely remember swapping something out to make it work correctly. Anyway it all clears my stock hood with a 1" body lift. I do not have the intake elbow on though.

 

[Ourobos]

^ Some IACs are shorter than others, you could source one of the smaller ones, probably a Crown Vic as needabronco mentions is shorter than the explorer. It's worth a look

 

[Toddpole]

Thinking outside the box a little. Can you loosen your engine mounts and adjust to gain a little more room on one side?

 

[904Bronco]

The 98 Explorer IAC stands off the TB just under 2 inches. It is not the length, but the height that I need to change... I can probably locate a picture of the Crown Vic on the Web to see

I started thinking about the 45* adapter again last night as an option. Making an adapter plate for the EGR inlet. I just need one to do mock-up to see what else changes. I am guessing that the factory Mustang one is not 70mm like the Explorer or Edelbrock replacement.

 

[904Bronco]

The 98 Explorer IAC stands off the TB just under 2 inches. It is not the length, but the height that I need to change... I can probably locate a picture of the Crown Vic on the Web to see

I started thinking about the 45* adapter again last night as an option. Making an adapter plate for the EGR inlet. I just need one to do mock-up to see what else changes. I am guessing that the factory Mustang one is not 70mm like the Explorer or Edelbrock replacement.

I borrowed an Edelbrock 3835 70mm 45* adapter elbow to test fit... It bolts to the intake, but the Explorer TB will not bolt to it. (minor slotting of the TB will not help.) Back to square one. Change back to Explorer valve covers and oil filler tube for clearance, then rotate TB for hood clearance.

 

[Mountain Ram]

Lose the elbow and turn the TB on its side... At least that's how mine is and works great!

 

[garberz]

Lose the elbow and turn the TB on its side... At least that's how mine is and works great!

He's running an EGR, it's part of the elbow. Deleting the EGR is probably not an option.