1987 22re Can I increase Mileage?

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Toyota designed 22R's from the ground-up to run well with smog, so unless you're willing to do some serious mods, it'll run like crap without the hardware.

Check out LC Engineering's page, they offer custom intakes and upgrades designed to increase power, and still remain mostly stock.
Good luck.
 
the biggest way to increase your milage, is driving style, when you shift, the rout you choose, ect ect.

i was able to get 22 to 23 out of my 87 pickup, it had 30x9.50 tires, but i would shift at no higher rpm than 3500 and would try to keep my high speed around 55 to 60 and was able to get the 22 to 23 mpg's.


that did not last long though.
 
Tires also make a difference-

When I first got The Mule, she got on average 25MPG, with 31" bologna-skins.
I got new tires on the cheap at Pep Boys, and I told them I want 31" tires - they installed 27's. I'm now averaging 21MPG, and lost about 4% accuracy on my speedometer.

4lo.com has a table of gear ratio to tires-sizes, and for 4.11's, optimum fule economy is closer to 35's (a "rubber overdrive") but it will also make it somewhat of a slug, and breakage becomes an everyday thing.

It's funny, every time I try to pinch pennies and buy cut-rate tires, it always comes back to bite me in the butt.
 
well, i would have liked to know how he saved an exact 6.3% in fuel usage and how he calculated it ...

load on engine and RPM is the only way to change fuel mileage.
if you decrease the RPM you will save fuel, it takes energy to move a vehicle down the road. the faster you want to go the more it is going to cost you.

i have found (on my vehicles) for every 5 km/hr faster you lose 1-2 mpg average. this is of course when driving 90 k/h and increasing 5 km per hour after that. now this isn't rock solid but very close.

load will be an accumulation of gear ratio, tire size, design of vehicle, weight of vehicle, terrain, head winds, weather conditions etc.
"rubber over drives" seem to help somewhat but then it takes more energy to turn the bigger tires (in theory).
if i drive 80 km/hr in my 70 rag top at a relative constant then i will return 34 mpg. if i drive 110 k/h at a relative constant then i will return 28 mpg, a drop of 6 mpg. if i do this with the PZJ78 then the decrease is closer to 8 mpg. my 75 series gasser will return 18 mpg at 90 k/h but at 110 it returns only 12-13 mpg, which isn't bad at all considering. when winter hits then the mileage drops about 5 more mpg due to idling, traction loss, colder gear lubes etc.

a well tuned vehicle with good compression, properly inflated tires and a light throttle application and a reasonable cruising speed will return the best possible fuel mileage.
 
another thing i did was to watch ahead, especially where there are a lot of stop lights, if you can down shift, and not come to a complete stop it helps to as it takes more to get the vehicle moving. i would say that no one thing will increase your mileage but a combination of things will make a difference.
 
toy4xfun said:
i would say that no one thing will increase your mileage but a combination of things will make a difference.
Click to expand...

You're exactly right, there's no singular thing anyone can do, but if you make a concerted effort to maintain your vehicle, drive efficiently, and watch your payload, you'll do better.

Not driving like a jackass with your front bumper stuffed into the car ahead's tailpipe helps alot, too.
 
Combat Chuck said:
I got new tires on the cheap at Pep Boys, and I told them I want 31" tires - they installed 27's. I'm now averaging 21MPG, and lost about 4% accuracy on my speedometer.
Click to expand...

I'm not sure about your math there... the difference between 31's and 27's is almost 15%...

Buy a Honda Civic... Toyota 4x4's are not gas mileage machines....

That said, driving style is a huge part of it.... I got 23 on one tank with 33's and 4.10s but I was doing 50 following a diesel Troopie. I usually got 17-18 with that set up....
 
I was thinking in terms of the difference between speedometer then and now, but you're right, the number was off the top of my head.

According to my calculator, the difference is 10%

Still, 21 MPG on average with all manner of driving is still far greater than 16MPG in a 2-ton V6 car.
 
crushers said:
well, i would have liked to know how he saved an exact 6.3% in fuel usage and how he calculated it ...
Click to expand...

Since this thread is destined to roll downhill itself Ill let the cat out of the bag for ya.

22r/res suck for mileage. Like said if you are concerned with mileage get a nerdy asss honda civic.

If you want to drive a cool truck, get used to filling it up.

Just be glad it doesnt have a 3.0 eating up gas.

Ive never owned a toyota that had a correctly functioning/accurate speedo anyways. So who knows if the mileage everyone has here is comparable anyways.
 
Honestly my dodge cummins 12V tow rig gets better mileage while towing my toyota than the toyota gets.

It only weighs 12-13 k when towing.

22r/re fuel economy is not the trucks strong point by any means.

Oh and for tech content, leave the egr stuff alone if it works fine. If it dont work, fix it, but leave it on.
 
I've always been able to milk extra MPG out of vehicles.

I had a 85 fj60 that 17 mpg adjusted for the bigger tires was the norm. I drove it easy. Shifted 500-800 RPM lower than normal. The tires were 33x9.50s so I gained the "rubber overdrive" without gaining the width. It was almost as cheap to drive it on trips as it was my wife's 3.0 4runner.

Then we got an 80. It use to be able to pull 17 mpg out of it too. It isn't a sports car or a drag racer so I treat it as such. Accelerating on downhills so that the next uphill isn't as hard. I don't try topping the big hills at the same speed I descended them either.

Its all about your ability to keep you foot off the floor board.
 
although it is not 30mpg, a 22re does quite well gas mileage wise for the weight of the vehicle!

and my 87's speedo was either right on or close i do not think any of them are 100% accurate unless it is brand new. and i got a steady 20 mpg out of it, even with the hubs locked, but paying more attention to how i drove and tune up oil changes,and tire pressure. all helped me squeeze a little more out of it.
 
I've always been very pleased with the 18 to 24 MPG I have gotten out of my Toy Minis and 4Runners with 22RE engines. I hate 22R set ups unless you scrap all the stock intake and carb components. I used to drive Dodge and Ford gas 4x4s so I'm a pushover for anything that gets double digits in the mileage dept. Really though, there aren't many vehicles you can load up with all your gear for a week of camping or hunting, then drive hundreds of miles in relative comfort and go up some rotten forest roads well past where the stock current production vehicles have to stop then do some wheeling and camping all on 20 MPG with 33" tires. In my current DD I swapped 4.88 gears for more power and all I got was higher RPMs and lower mileage, I would definitely go the rubber overdrive route up to 33" with stock 4.10 gears and 35" with 4.56 gears. I've done the 5.29 gears in my trail rig with 37" tires and a V-6 swap but that never gets driven enough to tell the mileage. After several Toy minis and 4Runners I would say unless it is a designated trail rig stay with 32" or smaller and the factory gearing, higher flow intake and filter, header and better exhaust will do a little to wake the 22RE up but not really worth the effort unless you are rebuilding or replacing those components anyway.
 
I suspect that I could get 22+ if I tried. I get about 19 just because I gun it once in a while. So Ill try to drive miss daisy and see...

I've got a Droid phone.... Anyone know if there is an app that would track mileage?

Thanks for all the great input.

And yeah, I wish all roads where down hill.:cheers:
 
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