kvistad

this truck is a 93 4x4 completely stock i have a NWOR tri-q header on the way and a 2 1/4" exhaust system on the way for it. i really have no clue as far as what i can do to this truck with out causing electric problems any sugetions on the upgrade path i should take? and what ajustments i should make to it for high altatude (colorado springs) and can i rip the emmisions off with out causing problems? thanks for any help
KVISTAD

scuba

Soooo, What motor are we talking about..?

Either way, dont expect to get any cheap good power..

thook

Probably 22re since "header" was used in the singular.

Nope........no real power mods are cheap. But, atleast it's cheaper than a V6. And, easier to do.

Run a search using keywords like "22re mods". It's been asked about a lot, and there's plenty of info already. There's even an section devoted to it under "toyota forums available". Nevertheless, I'm sure you'll get plenty of replies on this.

BTW, there's not really a lot you can do with electronics, unless you want to modify the ignition system. But, that's out of my realm of knowledge. Other than that, anything you do mechanically won't affect electronics negatively. You may have to tweak the airflow meter dial if you advance timing, but that's about it. And, that's no big deal.

kvistad

yes it is a 22re. and thanks for your input. i've only worked on the older modle 22r's so the whole electronic thing threw me for a loop. well thanks for your help
KVISTAD

abecedarian

There are few things you can do to the 22re that don't run in to a lot of money. Toyota pretty much optimized the 22r/re engines for a decent amount of power and good longevity. For the most part, anything more than 10-20% increase (to above 120-130 hp) and the costs generally jump dramatically. However, the 22r and 22re are very similar engines (including the 22re found in the Celica). They are actually almost identical with the exception of some timing chain changes in the early 80's and a block/head redesign in 85 that causes some incompatibility between parts on the 22r/re from before and after 85, but both engines respond to the same mods similarly.

Anyhow, you've already got the header and exhaust covered so the next thing would be camshaft and possibly port the head / oversize the valves. There's not a lot of hp to be had with doing the head on its own so those the cam should be swapped with head work, but it's still not a huge jump in power. If you're not doing head work, you have to be careful changing the cam since you have to remove the head bolts to get the cam in/out. That means there's a good chance the headgasket will need replaced. With too aggressive of a camshaft, the lack of vacuum will throw the ECU and fuel mixture for a loop: if it were carb'd, you can raise the idle and re-jet but with the Toyota EFI you've only got a little bit of adjustment you can make to the air-flow meter, change fuel injectors or switch to an aftermarket engine management system or carbureted set-up.

Higher compression is a possibility as is supercharging or turbocharging but you can see that now you're getting into the bigger bucks.

ovrrdrive

http://www.4x4wire.com/forums/showfl...5&o=14&fpart=1

From the master...

whokrz

The best mod you can do to a 22re to get more power and still have a Toyota 4banger is put in a 3RZ