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Old 09-07-2005, 12:43 PM   #1 (permalink)
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toyota help

i have a 92 toyota pickup on 31x10.50 trxxus m/t's. the truck is a 4 cyl. on the highway i can only get up to about 70 mph (75 downhill and 65 uphill). do the tires really make that much of a differance on top end power? any solutions to my problem?
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Old 09-07-2005, 12:50 PM   #2 (permalink)
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It is a 4 cylinder they are slow.
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Old 09-07-2005, 12:52 PM   #3 (permalink)
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Tune up (remember the fuel filter) check for plugged Cat....regear and if your still not happy..motor swap. Sorry, 22RE's are dogs.
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Old 09-07-2005, 01:01 PM   #4 (permalink)
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I think you should be doing much better than that seeing as that my runner will do 70-75ish with 36x13.5 Iroks and stock gears. If you have a 22re do a tune up (new plugs, dist. cap, yada yada yada). Also try running a higher pressure in your tire. I run 28-30 psi in my 36's. Oh and if you are driving an auto, does it have shift problems? I have a stock 86 runner with an auto and it's a dog on accels, but still gets up to around 85 or 90. It's on 235/75s.
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Old 09-07-2005, 01:12 PM   #5 (permalink)
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You should easily be able to go over 70mph with those 31s and stock gearing.
I would start by checking the ignition timing. There is a jumper that must be connected on 22REs while you set the timing. If you don't jumper it and then adjust the timing to factory specs, the engine will lack an incredible amount of power. Ask me how I know lol.
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Old 09-08-2005, 05:49 AM   #6 (permalink)
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thanks for the help guys. i'll see if i can't get around to getting that done this weekend. if that doesn't help i was thinking about swapping to 4.56 in the rear. any thoughts?
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Old 09-08-2005, 10:26 AM   #7 (permalink)
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If you are going to go the trouble of swapping gears I would go to at least 4:88's. Lower gears with the same tires with help on accelerations but I don't think you will be going any faster.
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Old 09-08-2005, 12:04 PM   #8 (permalink)
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I'm runnin bone stock 22re with 37" MTR's and stock gears and i can hit 75 no prob.
I just cant use fifth gear.
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Old 09-08-2005, 12:18 PM   #9 (permalink)
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You do know your speedo is not correct .......... right??

its going to be like 10% slow ....... so it saying 70 is really 77





** you might want to try driving around with your tailgate down
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Old 09-08-2005, 02:28 PM   #10 (permalink)
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i know that it's off, but i only thought by a few mph's.
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Old 09-08-2005, 04:22 PM   #11 (permalink)
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I wouldnt regear I would fix the motor... something isnt right if you can't hold 70mph with 31's

I have owned two dead tired 83's with 31's and both would do 75, and these things were on their death beds.

I have also driven a couple of EFI yotas with 31's and they would do 75 all day any day
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Old 09-09-2005, 08:48 AM   #12 (permalink)
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i took my truck to a buddy of mine's shop and he ran some diagnostics on it and said it was pretty much fine. all my plugs, wires, etc. are in pretty good shape. he seemed to think it was the tires. he did say there was an exhaust leak in the exhaust manifold, but that it wouldn't be contributing to the problem. any thoughts?
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Old 09-09-2005, 08:51 AM   #13 (permalink)
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my buddy also said to pull the fuse from the efi next time i'm filling up, and to use premium gas. the efi would reset to the higher octane gas and that would give me a little more power. i was wondering, is there an octane fuel additive that would do the same thing?
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