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 Re: 4.88's for a 1 gen 4runner- anyone have this? opinions?
[Re: sdsnowman]
#833599
09/03/07 08:11 PM
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Joined: Jan 2003
Posts: 205
Wheeler
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i do not have a tach so i do not know what my rpm's are at that speed. there a a couple of charts floating around that show gear ratio/tire size/rpm relationship. i do know that my gas milage improved when i went from 4.10 to 5.29 due to running in a rpm range that is more efficient for the 22re. maybe someone will chime in with a link to the chart. i can run @ 70 and then swing out into the fast lane roll up to 80 and actually pass another vehicle there is no way i could have done that before 5.29's. try this or yahoo for more: ratio tire size calculator
Last edited by brentox; 09/03/07 08:17 PM.
92 Extended Cab 4x4, 3.0 5-Speed Scratched, Dented and Rusted.
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Re: 4.88's for a 1 gen 4runner- anyone have this? opinions?
[Re: sdsnowman]
#833600
09/04/07 10:52 AM
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Joined: Apr 2002
Posts: 884
Rock Warrior
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What size tires are you running? That makes all the difference in the world. If you're running 225's then 4:88s are too low and 5.29s are out of the question, even for towing. I had 4:88s on my old 81, (where stock was 3.90 with 31's before I switched to 33's and the 4.88s were pretty low. Didn't like it, I was always shifting. Once I switched to 33's it was perfect.
You need to figure out what tire size you want to end up with then maybe go with a little lower gear, really depends on how often you'll be towing. Try a header and 2 1/4" exhaust, helps alot. I'm currently on 35's with 4.10's, (for now), and I have plenty of power on the street. My engine is on the strong side but it has a header, exhaust, and 270 cam.
My point is there are alot of factors to consider before dropping alot of coin on gears.
'86 4Runner 5" SAS
'97 4Runner
'05 Corolla
'00 F250 PowerStroke
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Re: 4.88's for a 1 gen 4runner- anyone have this? opinions?
[Re: 4xJedi]
#833601
09/04/07 04:41 PM
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Joined: Nov 2002
Posts: 268
OP
Mudrunner
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What size tires are you running? That makes all the difference in the world. If you're running 225's then 4:88s are too low and 5.29s are out of the question, even for towing. I had 4:88s on my old 81, (where stock was 3.90 with 31's before I switched to 33's and the 4.88s were pretty low. Didn't like it, I was always shifting. Once I switched to 33's it was perfect.
You need to figure out what tire size you want to end up with then maybe go with a little lower gear, really depends on how often you'll be towing. Try a header and 2 1/4" exhaust, helps alot. I'm currently on 35's with 4.10's, (for now), and I have plenty of power on the street. My engine is on the strong side but it has a header, exhaust, and 270 cam.
My point is there are alot of factors to consider before dropping alot of coin on gears. am currently on 32" BFG muds.. I want to be able to tow my 6x12 enclosed trailer with 2 quads and gear over a 4000' grade and back. currently with the 4.10's i cannot get out of 3rd gear unless it is flat or downhill. in california i cannot install any performance mods without affecting emission testing.... nothing significant anyway.
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Re: 4.88's for a 1 gen 4runner- anyone have this? opinions?
[Re: sdsnowman]
#833602
09/04/07 04:58 PM
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Joined: Jan 2000
Posts: 12,153
Web Wheeler
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You can find your gearing/speed/RMP from the calculators on this web page: http://www.4crawler.com/4x4/4LoCalc.shtmlw/ 33s and 5.29s, I used to turn about 3300 @ 70 Gearing will generally help your smog test results, at least on the dyno tests.
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Re: 4.88's for a 1 gen 4runner- anyone have this? opinions?
[Re: 4Crawler]
#833603
09/08/07 08:24 AM
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Joined: Feb 2003
Posts: 18
Need a Spot
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I'm running 4.88s and 35s on my 85 pickup. It's a pretty decent combination, but I don't tow. Me thinks towing with this combination would suck, but, then again, towing with any combination and a 22r would suck.
85 4X4 PU, 90 FJ62, 96 FZJ 80
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Re: 4.88's for a 1 gen 4runner- anyone have this? opinions?
[Re: CSA]
#833604
09/08/07 05:48 PM
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Joined: Aug 2007
Posts: 66
Getting the Wheeling Fever
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Had 4:88's with 33" tires.... no problem. felt like stock gearing and speedo right on the button.
Moved up to 35" tire and changed to 5:29's. Again, perfect match. This on a '86 with the 22re and 5 speed manual tranny. Will cruise at 70 with the AC on just @ 3K rpm.
'86 4x4 SR5 22re 5" lift 35" BFG's and 5:29 gears.
'05 4x4 DC Tacoma TRD Sport
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Re: 4.88's for a 1 gen 4runner- anyone have this? opinions?
[Re: sdsnowman]
#833605
09/11/07 12:38 AM
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Joined: Sep 2004
Posts: 33
Getting the Wheeling Fever
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4.88's and 35's on alum wheels and BFG MTs and 18.5 mpg on mostly highway (w/ hills). 70 mph (speed limit on interstate) on level grade is at 3000 rpm, will drop down to below 70 up hills - works for me. I use to have an '84 with same setup and put a roof rack which killed the power and milage. I would think twice about putting a roof rack unless it has a very low profile.
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