I haven't mentioned an '85 directly but the options are pretty much the same as for the '77 RA29.
Adding a heavy engine too far up front will screw up your handling.
Avoid 6 cylinder engines and cast iron V8 engines unless you can cut out the firewall and relocate the whole engine way back.
A modified 22R engine is the best bet for reasonable cost.
The other engines can be done but might be a bit complicated for your first engine swap.
'86-'88 4Runners and trucks, unfortunately. But if you do a search over at the truck section there are a couple of guys who have converted their 22R/RE's to turbo.
Unless you do most of the work yourself and have more than 3K to spend, I wouldn't bother. Just rebuild a 22R, stick a lumpy cam in it, save up for some side-draft carbs and a 2.5" exhaust, and call it done.
Yep, I agree with DCM.
A mildly worked 22R goes quite well.
Anything significantly better will be much more expensive or complicated.
Exhaust, Weber 32/36 carb, lumpy cam in that order.
If you can find a 20R head then it will raise you compression ratio a bit, which will allow you to tune it for more power.
Of course, that means ripping off the old head, new gaskets, etc.
There really is no point in switching the 22re into carb. The 20r head flows better, but with some machine work done. You can get the 22re head to flow just as good or better.
The 22re engines are very limited in terms of performance if you seek power. Its a great cruiser engine, but not really for the track. Maybe autocross for its good low end torque.
Mmmm, I wouldn't say that; there's a guy on the toyota3tc site with a 10 second Corolla. That is fast, no matter how you slice it. My 22R revved to 6500 without a hiccup, and would do burnouts into 4th gear with 205/60's on it.
205/60/14's? 13's? With a car that light and smaller rims its not too hard to do burnouts in higher gears. Even still, burnouts don't really say too much. Its just a burnout.
The fact is, with the amount of money you'd put into a 22r/re engine. You could've done a swap and have more power and room for more.
They're not bad engines, but if you want real performance. You're better off looking for something else. Thats just my opinion. Even if you use forced induction.
The big questions are how experienced is he and how adventurous is he?
If he wants something simple then a tricked up 22R is best.
If he's willing to spend time, money and go through some aggravation then he has lots more options.
Some of them will require shifting the firewall (most 6 cylinder engines).
Most of them will require custom engine mounts and the like.
All will require rewiring.
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