JohnnyC
Long ago TLCA# 2231
the maximum cruising speed is 63mph for my 74 fj40
FJ40 max cruising speed
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JohnnyC
Long ago TLCA# 2231
from the owners manual
I have to get a tach. My truck sounds like it is going to blow up at 55.
JohnnyC said:
That's very interesting since I always "felt" 62 was as fast as I shoudl cruiser. That the same my dad felt when he bought the truck an drive it home from the Texas coast.
For those who don't know, 71 on 33s is the same as 62 on stock tires.
To the poster that says 83 on 32 with room to go. No way Jose. That's a hair under redline. Any motor wheel feel like it can pull more at redline, but that doesnt mean that your valves won't float and your rod bearings won't spin. Good luck with that!
Way. A freshly rebuilt 2F (specs in the sigline) will power a Pig on 33s & 4.11s to 85 MPH sustainable, on a flat surface. I chickened out before the engine did. I've taken this engine over 5k a few times at Pismo.
brian
SILVER Star
thats the glory of an inline 6.
Pighead said:
Your sig does not show up for everyone. A balanced and blueprinted rebuilt 2f is NOT a stock 2F(which is what the OP asked about). Your information is misleading and could lead to premature catastrophic failure.
I personally don't think that 3800 rpm is high, especially with fresh valve springs and good internals. I too have a well built 2f, but I'm not going to tell a guy with an aging stocker to run his or her motor consistently at factory redline.
That's plain stupid.
I have to agree with the book and members that talk about an approximate 65 mph cruise speed. I have 78 with 33 tires, cam, headers, exhaust and non USA electronic distributor curve. 65 feels about ok at 27-2800 rpm. All this at 4700 asl. Of course my best speed improvement was the Saginaw powersteering and shackle reversal kits.
Problem is that the extra pedal doesn't do much....
brian
SILVER Star
Maybe on yours...33s, 370s..I run out of balls above 80 before I run out of engine.
Last edited:
Good for you. I just have never seen a even mildly modified produce much.
I run 4.11 gears with 33s and stay at about 2700 to 2800 doing the approximate 65 mph. 3k is my cruising limit for long distance. If I need to go faster, I brought the wrong vehicle.
Pterodactyl.
Chevy 350, 3spd on the floor, 33” tires, 4:11s. 80 mph.
Chevy 350, 3spd on the floor, 33” tires, 4:11s. 80 mph.
RevISK
SILVER Star
stock 2f, 3.70, 33" tires. 65-70 in the 2,750-3,250 range comfortably.
No wish to go faster in such a short wb.
No wish to go faster in such a short wb.
Follow us on my Build thread. After 3 years of Desert racing our next Goal is World of Speed week, Bonneville Salt flats. How fast can we push my 1967 FJ45 ? September 5-8, 2025 Builds - Purist Step away. Mint 400 2023 FJ45 - https://forum.ih8mud.com/threads/purist-step-away-mint-400-2023-fj45.1294075/
Racing Tractors R Us
Dirt Bomb
SILVER Star
When I was young I knew an old guy that was head of a family that owned a shopping center and a lot of rental properties'
Because of his vision, DMV restricted his license to only driving in daylight up and down the road he had business on.
He said if it got any worse he would buy a "fast tractor"
Because of his vision, DMV restricted his license to only driving in daylight up and down the road he had business on.
He said if it got any worse he would buy a "fast tractor"
