seanpistol's 01 Tundra
- Thread starter seanpistol
- Start date
seanpistol
Explorer
Bullfrog- I run a K&N lifetime filter.
Mike- I am calculating a 13% under error for the tires and a 14.2% over error for the gears. Should mean that after both the tire and gear change I'm 1.2% over.... Very minimal. As in my odometer is reading just 1.2% less than it should when calculating mileage, and 100 mph indicated is 98.8 mph actual.
Do you calculate different?
Mike- I am calculating a 13% under error for the tires and a 14.2% over error for the gears. Should mean that after both the tire and gear change I'm 1.2% over.... Very minimal. As in my odometer is reading just 1.2% less than it should when calculating mileage, and 100 mph indicated is 98.8 mph actual.
Do you calculate different?
Stoffregen Motorsports
Explorer
I don't know if it would work for your T100, but Brian Ellinger of Front Range Off Road just announced a long travel IFS kit that uses a Toyota 8" diff. It's supposed to have about 3x the travel of a stock Tacoma and it's completely bolt on. I know you just regeared your truck, but I thought this may interest you.
Matt
Matt
dyogim
Explorer
Here's what I've used in the past: http://www.wallaceracing.com/gear-speed.php
Gear ratios for the A340F transmission:
1st. 2.804
2nd 1.531
3rd 1.000
4th 0.705 (Overdrive)
I then take the results and try to match what I obtain visually on the dash. I have yet to use my OBDII reader to see what the data show there.
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toyotech
Expedition Leader
Adventurous
Explorer
Link? I just tried searching for it with no luck.
rickashay
Explorer
What the heck is different with my Canadian Tundra? I'm around 11% under with my gears and tires according to my gps.
seanpistol
Explorer
Could be the GPS... Ideal ratio with the jump in tire size is 4.42, so 4.56 is barely off.
Stoffregen Motorsports
Explorer
I was emailed a screenshot of the post on his FB page https://www.facebook.com/profile.php?id=100008256251270. It must be pretty deep because I couldn't find it either, but I'm sure if we give him a nudge, he'll give us some more info.
Stoffregen Motorsports
Explorer
Found it. Posted August 22.
https://www.facebook.com/groups/397846480399957/
https://www.facebook.com/groups/397846480399957/
theBullfrog125
Adventurer
Toyotech-
You could always pick up an inexpensive used set of 4.30 diffs locally from an auto non-TRD Tacoma and swap those in to see if you like the ratio, then order gears and have em installed in your original diffs so there's no down time. Then sell the used diffs when you swap in the original diffs with new gears. Sure it's extra work but you wouldn't be left hanging due to human error.
You could always pick up an inexpensive used set of 4.30 diffs locally from an auto non-TRD Tacoma and swap those in to see if you like the ratio, then order gears and have em installed in your original diffs so there's no down time. Then sell the used diffs when you swap in the original diffs with new gears. Sure it's extra work but you wouldn't be left hanging due to human error.
theBullfrog125
Adventurer
If I ever do a long travel set up my ideal front diff would be a Toyota/Lexus 8 inch for sure
theBullfrog125
Adventurer
Sean-
What tires do you plan to run next? Maybe its the angle but it looks like you are due for a new set soon and as you know those MTRs are disco'd! I'd like to hear your thoughts as I need to get tires before too long
What tires do you plan to run next? Maybe its the angle but it looks like you are due for a new set soon and as you know those MTRs are disco'd! I'd like to hear your thoughts as I need to get tires before too long
Climbermac
Observer
I couldn't agree more: 4.56's were one of the BEST things I've done to my Tundra. Glad to know they will still behave as well with 35's, I was a bit worried that I should have gone 4.88 to cover the potential to step up in shoes again.