2003mikem

I recently purchased a 1991 4runner from Arizona. It has a 3.0 litter engine. That has been rebuilt. Since I live in Wisconsin the rust belt of the north, This is a great find. I am planning on a solid axle conversion in the front. My question is I would like more power out of the stock engine. Weather it be headers cams etc. Can anyone tell me what type of power increase headers will do for a 3.slow. Also I have done a K&N filter and eliminated the stock air resistor tube and added a high flow cat. I did see some increase. Also my mileage in town is 15-16 mpg.

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dwh91102

after being here for awhile and seeing what I myself and others have to done to the 3.0, heres my opinion. Drive the 3.0 untill it won't drive anymore, or pull it and sell it, and do the 3.4 swap, I know I would have been happier in the end, and I think you will be to. Just my .02

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89 SR5 p/u 3.0 5 speed, doa cams, downey headers, jacobs igniton, self made isr pipe, electric fan, 14"flowmaster, allpro rear spool, 63"chevys, 4crawler 2"bl, bj spacers, skymanufacturing u-bolt flip & shock tower, ranchos, 1 1/2 square tube bed, aisin hubs, 35x10.5x15 super swamper boggers.....For ever a work in progress

2000 Tundra SR5 V8 4x4 Bone stock DD/Tow Rig

2003mikem

I also purchase a 1998 4runner for my wife. It has the 3.0 and we both love it.

Maybe I should lose control this winter, and then do the swap LOL

DavidA

I have owned the 22R, 22RE, and now the 3.4 and I LOVE the 3.4. I never drove the 3.0 but the 3.4 just plain runs great and has plenty of power with a few simple mods.

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2002 Stellar Blue 4Runner Sport Edition
Cold Air Intake
Magnaflow Exhaust
Iridium Sparkplugs
Kenwood KDC-MP628
Blaupunkt Separates in all of the doors
Two RF P2002 amps
Kenwood 12" Subwoofer

My baby: Pics

Dublin

2003mikem, I'm afraid there isn't a lot to do to gain more power. you could do a search here along the lines of (3.0 build) and may find a few more small power gains, in fact there was a post a while ago by Cebby outlining a build. The 3.0 may not be the quickest but it hasn't let me down either. Welcome 2003mikem nice to see another Fox Valley Yotatecher join the group.

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94 4Runner 4x4, V6 Auto, Outlaw II's with BFG 33x12.5x15 on stock suspension (no lift), Kenwood KDC-MVP Sirius/MP3 player, Bushwacker extenda-flares, 1700 watt power inverter, Air intake mod, Radio Shack CB, GPS, Swing arm tire carrier, modified 1st gen Toyota 4Runner Rollbar, Aisin manual hubs, 87 inclinometer, Toyota Brush guard. Where ever you go, there you are. I started out with nothing & still have most of it left.