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[Fix4Dirt]

4.10 axles can be had for $100 at the right junk yard. I noticed a difference with my aerostar van swapping 4.10 gears in. I could go sideways after launching from a stoplight.

Huh interesting not on the X but on other cars I havent noticed much of a difference with a one ratio up change. Or at least for the price I paid for LKQ axles

 

[DemonMudder]

Huh interesting not on the X but on other cars I havent noticed much of a difference with a one ratio up change. Or at least for the price I paid for LKQ axles

I know the comparison between my 5.7l rado with a 4.10 and my mom's rado with a 5.3l and a 3.73 was very noticeable, hers was on 35x12.5s, while I'm on 37x13.5s probably making less power. Hers still felt less powerful than mine, least in the low end for sure

 

[Josh P]

Basically 10% more torque multiplication. It was enough to get my van to outrun some V8 powered cars, least till I shifted into 4th gear at 70 mph

 

[DannyW]

Oh for sure, found one a bit back I almost, and should have, nabbed but didn't since I'd also have to do the front and didn't feel like it yet. Eventually maybe, love the 4.10 in the rado

I run 4.56 on 35's. It put the speedo back to where it was with 235/15's on it. I can run 70 on the interstate, and plenty of torque for the trails.
I'll regear when I do the 3.0 version explorer over the winter.
It may involve torsion delete, 4 link rear, and a GT40 head 302/ 4R70w / Holley Terminator on 38's.
Also known as a tire rotion as far as my wife knows.

 

[Josh P]

I run 4.56 on 35's. It put the speedo back to where it was with 235/15's on it. I can run 70 on the interstate, and plenty of torque for the trails.
I'll regear when I do the 3.0 version explorer over the winter.
It may involve torsion delete, 4 link rear, and a GT40 head 302/ 4R70w / Holley Terminator on 38's.
Also known as a tire rotion as far as my wife knows.

Now you're speaking my language!

 

[DemonMudder]

I run 4.56 on 35's. It put the speedo back to where it was with 235/15's on it. I can run 70 on the interstate, and plenty of torque for the trails.
I'll regear when I do the 3.0 version explorer over the winter.
It may involve torsion delete, 4 link rear, and a GT40 head 302/ 4R70w / Holley Terminator on 38's.
Also known as a tire rotion as far as my wife knows.

Love this!! That's an awesome plan! The 38s will be sick!
Love the given excuse too lmao

 

[CDW6212R]

Aldive did the most with his SOHC, he was after fuel mileage with the few power upgrades possible. There is a balancer available with a slightly smaller pulley size, it was about $260 when I bought mine.

Look in his thread, he upgraded the TB about 5mm IIRC, and I did that with also having it ported by a user on eBay who used to port many OEM TB's.

The factory shifting is a little lower than what's possible, 6000rpm is a good little step. But that takes a tune, not cheap. Everything is expensive top upgrade these things, the power gain is really minor versus the costs.

With those taller tires, near 32" you posted, it needs 32"/30" more gear to put it back to stock. Almost all 4WD models had 4.10's, I'd go at least one step above that, and two wouldn't be terrible on the street, if you want acceleration.

The E-fan didn't gain me any fuel savings, and there was no extra power felt.

The SOHC is a very frisky feeling engine in the 2nd gen Explorer, but the bone stock 302 pulls beats it off the line easily. The 302 loses ground right after the V8 trans(4R70W) shifts into 3rd gear. The 4R70W is a wide ratio trans, but what that really means is that it has normal gear ratio spacing between 1st and 2nd, and 3rd and 4th. The wide part is the big gap between 2nd gear and 3rd, the rpm's drop notably when it hits 3rd gear. So the SOHC begins to catch the V8 when it's in 3rd gear.

 

[Josh P]

With my aerostar van, 3.55 gears with a M5OD got me 27 mpg on the highway. 4.10 gears with a T5 got me 21.

 

[DemonMudder]

@CDW6212R I'll have to look through his thread.

Not sure I want to go over a 4.10, I got 3.73 now, would definitely swap in a 4.10 LS if I got the chance, just cause it still will be a partial daily, so I don't want crazy low like a 4.56, I'll be revving harder than the rado does on 37s if I did! Lmao

An upgraded 302 definitely would be nice! And sound better, but I do like the feel and performance of the sohc. One day I'll swap it perhapes, but it'll be a bigger engine than a 302 most likely!

@Josh P 27mpg would be so nice, doubt the X would ever get close unless it had a diesel, I don't even hear of people reaching 20mpg usually.

 

[CDW6212R]

These weigh 4500lbs, they won't save gas unless you put in some modern direct injection engine that has enough torque to run it at 2000rpm or so on the highway. Nobody has done any serious swaps like that on a 2nd gen, I doubt anyone will given the age now.

 

[Fix4Dirt]

Those 2.3 EBs make great power in compact platform.

 

[DemonMudder]

These weigh 4500lbs, they won't save gas unless you put in some modern direct injection engine that has enough torque to run it at 2000rpm or so on the highway. Nobody has done any serious swaps like that on a 2nd gen, I doubt anyone will given the age now.

Well, that's why I'll be here, let's just take a 400+hp 383 and toss it in lmao

Those 2.3 EBs make great power in compact platform.

Too small lmao

 

[Josh P]

It's a series of compromises. Better mpg comes at the expense of slower acceleration if you put in taller gears. Freeing up any restrictions in the intake and exhaust will gain you a few mpg. If you're going to spend cubic money to gain mpg, swap a more efficient engine in and start there

 

[DemonMudder]

It's a series of compromises. Better mpg comes at the expense of slower acceleration if you put in taller gears. Freeing up any restrictions in the intake and exhaust will gain you a few mpg. If you're going to spend cubic money to gain mpg, swap a more efficient engine in and start there

Engine swapping will turn me completely from the mileage goal honestly, by the time I do get there, the mazda should be done and that'll be the one getting plenty of mileage. So I'll sacrifice gladly. For now I guess I'll stick to the small stuff yall have suggested like headers and the TB

 

[Fix4Dirt]

Theres still a aprt of me that says do it once do it right

 

[Josh P]

Theres still a aprt of me that says do it once do it right

A second time makes it twice as nice.

 

[CDW6212R]

Update the SOHC valvetrain, the trans, and then slap on the available supercharger, see donalds nice Explorer. Add 50% more torque from off idle and up, that will make you smile no doubt.

Supercharger install 9+lb boost! Full build

So I got my m90 and rebuilt it ....snout and case bearings.... And I'm gonna paint it now ....black The theme is look stock There will be some pictures soon Got the blower from jy off a thunderbird with 47000 miles on it

www.explorerforum.com

 

[donalds]

It has 100,000 miles on the setup now and we love it
Key is we let it warm up and have a pre oiler
And the ten pounds of boost with meth injection is awesome
Be sure your U joints are in good shape lol

 

[Fix4Dirt]

meth injection is awesome

@DemonMudder see other people agree, forced induction! What can I say

 

[DannyW]

Aldive did the most with his SOHC, he was after fuel mileage with the few power upgrades possible. There is a balancer available with a slightly smaller pulley size, it was about $260 when I bought mine.

Look in his thread, he upgraded the TB about 5mm IIRC, and I did that with also having it ported by a user on eBay who used to port many OEM TB's.

The factory shifting is a little lower than what's possible, 6000rpm is a good little step. But that takes a tune, not cheap. Everything is expensive top upgrade these things, the power gain is really minor versus the costs.

With those taller tires, near 32" you posted, it needs 32"/30" more gear to put it back to stock. Almost all 4WD models had 4.10's, I'd go at least one step above that, and two wouldn't be terrible on the street, if you want acceleration.

The E-fan didn't gain me any fuel savings, and there was no extra power felt.

The SOHC is a very frisky feeling engine in the 2nd gen Explorer, but the bone stock 302 pulls beats it off the line easily. The 302 loses ground right after the V8 trans(4R70W) shifts into 3rd gear. The 4R70W is a wide ratio trans, but what that really means is that it has normal gear ratio spacing between 1st and 2nd, and 3rd and 4th. The wide part is the big gap between 2nd gear and 3rd, the rpm's drop notably when it hits 3rd gear. So the SOHC begins to catch the V8 when it's in 3rd gear.

My 95/4.0 OHV came stock with 3.55 gears.
Limted slip in the rear, open front.
I regeared to 3.73 on 265/70-16s. Was okay, lost a little pull, but Hwy was great @ 20mpg.
The 4.56 gears on 35's feels like it did on 235/70-15 stock setup. Plenty of pull in the trails. I have not been left behind by any of the taco's and jeeples I run with, and have on several occasions had to drive around them to winch them out.