RPMs with 36's and 4.88's vs 5.29s?
04-21-2007, 08:47 AM
#21
Registered User
If you can cruise in a Toy with 36's at 75mph your da man!!! I am running 37's with 5.29's and if I hold it on the floor in 4th gear for about 5 minutes I think I might be able to hit 75. I cruise at around 65 as long as it's perfectly flat and there's no head wind. This is with the 3.slow btw. Would be a different story with the 3.4 I suppose.
04-21-2007, 09:16 AM
#22
Contributing Member
Join Date: May 2002
Location: Solano Co, CA Originally a North Idaho Hick
Posts: 4,267
Likes: 0
Received 0 Likes
on
0 Posts
It runs strong and has in intake, exhaust, electric fan, ect. I could run at 75 if I really wanted to but I'm not gonna run my 3.0 at 4 grand down the freeway. I'm running 3000 rpms at 65 in 5th gear with 5.29's. Anything above 3 grand on the tach and gas mileage drops off exponentially.
04-21-2007, 09:21 AM
#23
Registered User
Ok that makes sense, I was wondering with that gearing it should have plenty of power. And I agree with you after 3000 rpms you can almost watch the fuel gauge start dropping off.
I think at 70mph I'm turning about 2100 rpms, its kind of hard telling exactly without using a GPS to get my exact speed.
I think at 70mph I'm turning about 2100 rpms, its kind of hard telling exactly without using a GPS to get my exact speed.
Last edited by Rcross; 04-21-2007 at 09:23 AM.
04-21-2007, 01:30 PM
#24
Registered User
Join Date: Dec 2002
Location: Idaho
Posts: 4,655
Likes: 0
Received 0 Likes
on
0 Posts
It runs strong and has in intake, exhaust, electric fan, ect. I could run at 75 if I really wanted to but I'm not gonna run my 3.0 at 4 grand down the freeway. I'm running 3000 rpms at 65 in 5th gear with 5.29's. Anything above 3 grand on the tach and gas mileage drops off exponentially.
Not to contradict what you see, but does that take into account your speedo error? Doing the math on those tires(569 rev/mile = 35.4 rolling dia), tranny, and gears you should be at 71mph at 3000rpm, and 65 is 2740rpm...
I think thats too high, you will be geared higher than stock, then take into account the tire weight and your performance will really be horrible...
For your original post of 2500 at 75 you would need 4.10's... 4.88's will be 3000 at 75 and 5.29's will be 3275.... But how often will you be driving 75 with 36's? I really think you will prefer the 5.29's at everything but 70mph +.
Last edited by AH64ID; 04-21-2007 at 01:38 PM.
04-23-2007, 02:03 PM
#25
Contributing Member
Join Date: Aug 2006
Location: Colorado Springs
Posts: 304
Likes: 0
Received 0 Likes
on
0 Posts
I feel you, my mustang put out 307hp at the wheels and 315 tq. I used to cruise 85mph @2400 rpm and barely feather the throttle at all and receive 25mpg. These trucks come with 4.10 gears stock for a reason, the torque isn't there.
05-09-2007, 07:38 AM
#26
Registered User
Join Date: Oct 2002
Location: San Diego & El Centro, CA
Posts: 256
Likes: 0
Received 0 Likes
on
0 Posts
i could not find an answer to this anywhere else, so maybe someone here knows.
my 2000 3.4l 4runner has the 4.10's i believe, and i am moving up to 35's right now. i want to regear, and keep as close to the stock gear ratio as possible. does anyone know which will be closer to stock between the 4.88's and the 5.29's when running the 35's?
my 2000 3.4l 4runner has the 4.10's i believe, and i am moving up to 35's right now. i want to regear, and keep as close to the stock gear ratio as possible. does anyone know which will be closer to stock between the 4.88's and the 5.29's when running the 35's?
Thread
Thread Starter
Forum
Replies
Last Post
justdifferentials
Just Differentials
5
06-13-2022 07:40 PM
justdifferentials
Vendors Build-Ups (Build-Up Section)
14
06-11-2017 08:36 PM
justdifferentials
Vendors Build-Ups (Build-Up Section)
0
09-05-2015 06:52 PM
FS[PacNorWest]: 1993 4 Runner, V6, 4wd, Auto,
AkitaDog
Vehicles - Trailers (Complete)
0
09-03-2015 09:01 PM
