74 fj40 top speed

gevans · 07-07-08, 08:45 AM

i have a 74 fj40 with orig 6 cyl it runs and drives good only prob is top speed is to slow for all the afterburners on highway it will keep up but i dont like running it that hard any suggestions would be appreciated 4-11 gears i think

Ziffdaddy · 07-07-08, 08:49 AM

Do like I do, and probably most on here, stay in the right lane and go slow....Since I used to be a sports car guy, I've found that because the FJ is so slow, it has eliminated my road rage tendencies....

Mace · 07-07-08, 08:57 AM

It will do 70 all day long as long as it is running in reasonable tune.

Pighead · 07-07-08, 09:03 AM

Why do you feel you have to go fast? Peer pressure?
I know my Pig will do 80mph, but it doesn't like it, I don't care for it either. I drive 55. People go around me. If I can find a nice big truck doing 55 I'll settle into it's draft and stay there. Slow is good.

SHREG · 07-07-08, 09:30 AM

Leave earlier.......... hard to beat the sound of a finely tuned F/2F at 55mph......

DWitcher · 07-07-08, 09:33 AM

Get use to the slow lane or buy a 5spd.

SLOonTheGo · 07-07-08, 09:54 AM

My 74 can hit 70 at a bit over 3k rpm, with 31 inch rubber overdrive.

For safety reasons I don't go over 60 usually. Not worth the reduced handling and gas mileage to go faster.

Bret · 07-07-08, 10:22 AM

Quote:

Originally Posted by gevans

i have a 74 fj40 with orig 6 cyl it runs and drives good only prob is top speed is to slow for all the afterburners on highway it will keep up but i dont like running it that hard any suggestions would be appreciated 4-11 gears i think

With a warm 383 and 37" tires my 40 will zip past 80, but it is much more relaxing and easier on fuel to run in the 55-60 crowd.

I pushed my '73 past 70 going through Denver long ago and it was anything but fun, loose steering and ruts in the road made for a terrible experience.

If you are looking for better road RPM's you can drop your gearing but then the I-6 may start to feel a little sluggish. Rubber overdrive, maybe 3.73 diff's than maybe a 5 speed or auto w/OD.

K2KK · 07-07-08, 10:44 AM

In my 70 with a 350, 35's and the 5:29's in her, I can sprint at 70mph. That's at 3500rpm. I cruise at 60 and always get there. Just never be in a hurry. I'm a better crawler

gevans · 07-07-08, 11:15 AM

yep purrs liike a kitty at 55 or so dont want to stress it any more than that just thinkin

gevans · 07-07-08, 11:18 AM

mine is lock stock purrs at 55 just wanted to see what the word was about more speed im fine where i sit just love the looks i get on the one laners with a line behind, but they will get over it thanks GE

gevans · 07-07-08, 11:21 AM

brett
to change gears to 373 a big deal or no and what about availability of getting them

toyrunner · 07-07-08, 11:45 AM

Keep the 4:11's They are better!
I cruise at 55-60 and don't care who gives what kind of look. They can , as my daughter says, "build a bridge and get over it!"

amaurer · 07-07-08, 11:50 AM

I have 4.11's + 31" tires and choose to cruise at 55mph/2790rpm.

62mph/~3100rpm is easily possible, but I don't like to cruise that high (but I'm diesel, maybe a gasser would be fine at the higher rpms, dunno).

Here by San Fran 55 is just fine in the right lane. In Chicago I'd be a speedbump in someone's rearview mirror...

natvet · 07-07-08, 11:55 AM

Quote:

Originally Posted by gevans

brett
to change gears to 373 a big deal or no and what about availability of getting them

Most of the FJ 60's have em and just swap out the whole pumpkin. no big deal

rusty_tlc · 07-07-08, 12:21 PM

Quote:

Originally Posted by gevans

mine is lock stock purrs at 55 just wanted to see what the word was about more speed im fine where i sit just love the looks i get on the one laners with a line behind, but they will get over it thanks GE

Thats what pull outs are for. If I see three or more cars behind me I use a pullout.

MuskieFJ · 07-07-08, 06:12 PM

I have a 73 with the stock 3 speed and 50mph sounds like it is screaming. Believe it still has the 4.11, but without a tach not sure how fast she is turning. I have P265/75R15's on her now. Any ideas?

brian · 07-07-08, 06:42 PM

nobody said it, so i will.

it'll cruise 85mph on the highway all day long.

brian · 07-07-08, 06:46 PM

Quote:

Originally Posted by MuskieFJ

I have a 73 with the stock 3 speed and 50mph sounds like it is screaming. Believe it still has the 4.11, but without a tach not sure how fast she is turning. I have P265/75R15's on her now. Any ideas?

3rd gear/top gear. is 1-1. i'll ball park it at around 3K rpm. you still have 1500ish till red line.

gevans · 07-07-08, 11:00 PM

i have not had my 74 fj40 for long changed oil filter, checked brakes and fluids probably need to change brake master cylinder it is leaking a little in front of the fill chanbers where they bolt on. also need to check front and rear axles any advice or help would be appreciated.

theo · 07-08-08, 09:51 AM

Change the rear diff gear oil. The rear diff is in use full time. It needs new oil.

Change the transmission oil. Same reason as above.

Check the front diff oil. Doesn't need replacing as often, but if it's sludgy, you'll need to rebuild the steering knuckles. Sorry, but it's one of those things every owner puts off. And now you own it. You can put it off too, but you should at least find out where you stand.

(I put it off for a couple of years. Finally got around to it after sweating through a couple months of death wobble. YMMV)

ps - Welcome to mud

gevans · 07-08-08, 10:02 PM

thanks theo the knuckles a big deal ? suggestions about brake master cylinder ie hard to change out or no

theo · 07-09-08, 08:40 AM

Brake master isn't too bad. You have to be aware of the clearance/adjustment on the actuator rod and getting all the air out of the system.

The knuckles are kind of a big, messy job. No special tools if you're starting from a working assembly (like you are). If you find out you need to do it, you'll want to study up first so you do it right the first time. On the other hand, you can ignore the knuckles for quite awhile and still be OK. They won't fall apart on the road; usually your steering and handling will deteriorate gradually.

Search will get you all the technical info you need on those two jobs.

Cruiserdrew · 07-09-08, 08:48 AM

I could not agree more with the go slow advice. Even if the motor is good for 85mph the chassis is not safe at that speed. I treat 65mph as an upper limit. It's a short wheelbase high COG truck. Go slow, stay within the braking envelope and enjoy. Get a car if you want to go 70+.

gevans · 07-09-08, 02:07 PM

thanks cdrew i have no prob with going slow i just thought about stress on engine and driveline i am used to driving a diesel truck at about 1700 rpm at 65 or so and now im guessing im at about 2700-3000 at 55 but hard to tell no tach and all just want to keep her together as long as possible

Joe Egolf · 07-09-08, 02:14 PM

I have a 3b diesel in my 1981 Bj42 and 100 km per hr appx 62 mph is about as hard as I want t charge in my cruiser.

wells.jack · 07-10-08, 09:48 PM

i usually hang around 55 or 60 with my '76, but i can push it to at least ~70 befor the belt starts to whistle. if i got a smaller belt i could maybe hit 80, but since all the highways around here top out at 65 theres not much reason to push the engin that hard. i get on i-10 and drive 55 in the right lane. kinda reminds me of a foghat song...

gevans · 07-11-08, 10:09 AM

ya wells jack the few times i have been on my end of i-10 the eighteen wheelers seem to take the most offense with the speed but they can just live with it. ps i'm as far to the east on i-10 as you can get and still stay in texas town called Orange

Tigerstripe40 · 07-11-08, 01:30 PM

I routinely drive my 76 FJ40 at 65-70mph.
35" tires, 3200 rpms, 4th gear.

With the saginaw power steering, tight steering components, and good spring bushings, I can drive it that fast with 3 fingers on the steering wheel (obviously I don't drive that way all the time, but I think you get the point).

gevans · 07-11-08, 01:35 PM

i'm on 31's winding a little tight for me at that speed anyone know what red line is on a 2f like mine ?

07-07-08, 08:45 AM	#1
gevans IH8MUD Rookie Join Date: Jul 2008 Posts: 17	74 fj40 top speed i have a 74 fj40 with orig 6 cyl it runs and drives good only prob is top speed is to slow for all the afterburners on highway it will keep up but i dont like running it that hard any suggestions would be appreciated 4-11 gears i think

07-07-08, 08:49 AM	#2
Ziffdaddy IH8MUD Regular Join Date: Mar 2007 Location: Los Angeles, CA TLCA# 18034 Posts: 428	Do like I do, and probably most on here, stay in the right lane and go slow....Since I used to be a sports car guy, I've found that because the FJ is so slow, it has eliminated my road rage tendencies.... __________________ 74' FJ40 Freeborn Red, 114kmi, 31x9.50 ssTSLs on stock steelies, stock, except non USA Dist. Awesome.

07-07-08, 08:57 AM	#3
Mace what he said Join Date: Feb 2002 Location: Las Vegas Posts: 10,984	It will do 70 all day long as long as it is running in reasonable tune. __________________ I am kinda gay....... My Myspace http://profile.myspace.com/index.cfm...endid=75712409 "Mary Poppins: In every job that must be done, there is an element of fun. You find the fun and - SNAP - the job's a game."

07-07-08, 09:03 AM	#4
Pighead myopic luddite Join Date: Aug 2004 Location: Midtown Sacramento TLCA# 2509 Posts: 1,742	Why do you feel you have to go fast? Peer pressure? I know my Pig will do 80mph, but it doesn't like it, I don't care for it either. I drive 55. People go around me. If I can find a nice big truck doing 55 I'll settle into it's draft and stay there. Slow is good. __________________ "Well it's a '68, '69, '70, '71, '72, '73, '74, '75, 76, '77 FJ55" http://forum.ih8mud.com/424768-post9.html

07-07-08, 09:30 AM	#5
SHREG IH8MUD Addict Join Date: Jan 2003 Posts: 766	Leave earlier.......... hard to beat the sound of a finely tuned F/2F at 55mph...... __________________ Stuff ALL HALE THE F/2F 1994 FZJ80 Every Day GG 1965 FJ40 Stock, DQ Sunday fun truck 1984 FJ60 Cabin Cruzer LOTS OF FJ40 PARTS FOR SALE http://forum.ih8mud.com/sale-parts/2...ml#post3472352

07-07-08, 09:33 AM	#6
DWitcher IH8MUD Regular Join Date: Nov 2006 Location: Bakersfield CA. Posts: 222	Get use to the slow lane or buy a 5spd. __________________ Student of the PIGG '68 FJ55 '72 FJ55 '73 FJ40< newest addition "Fish on!".

07-07-08, 09:54 AM	#7
SLOonTheGo IH8MUD Junior Join Date: Nov 2006 Location: San Luis Obispo, Ca Posts: 163	My 74 can hit 70 at a bit over 3k rpm, with 31 inch rubber overdrive. For safety reasons I don't go over 60 usually. Not worth the reduced handling and gas mileage to go faster. __________________ 1974 FJ40 Penelope, beat up stocker, FJ60 knuckles. 2001 Silverado step side 2008 Giant Trance X2 2005 Specialized Hardrock Sport

07-07-08, 10:44 AM	#9
K2KK IH8MUD Junior Join Date: Oct 2007 Location: Fortuna, Ca TLCA# 18929 Posts: 186	In my 70 with a 350, 35's and the 5:29's in her, I can sprint at 70mph. That's at 3500rpm. I cruise at 60 and always get there. Just never be in a hurry. I'm a better crawler

07-07-08, 11:15 AM	#10
gevans IH8MUD Rookie Join Date: Jul 2008 Posts: 17	yep purrs liike a kitty at 55 or so dont want to stress it any more than that just thinkin

07-07-08, 11:18 AM	#11
gevans IH8MUD Rookie Join Date: Jul 2008 Posts: 17	mine is lock stock purrs at 55 just wanted to see what the word was about more speed im fine where i sit just love the looks i get on the one laners with a line behind, but they will get over it thanks GE

07-07-08, 11:21 AM	#12
gevans IH8MUD Rookie Join Date: Jul 2008 Posts: 17	brett to change gears to 373 a big deal or no and what about availability of getting them

07-07-08, 11:45 AM	#13
toyrunner IH8MUD Junior Join Date: Jun 2004 Location: Camarillo, Ca. TLCA# 7031 Posts: 197	Keep the 4:11's They are better! I cruise at 55-60 and don't care who gives what kind of look. They can , as my daughter says, "build a bridge and get over it!" __________________ 1978 FJ40 1985 4Runner

07-07-08, 11:50 AM	#14
amaurer IH8MUD Lifer Join Date: Sep 2007 Location: Cupertino, CA Posts: 1,005	I have 4.11's + 31" tires and choose to cruise at 55mph/2790rpm. 62mph/~3100rpm is easily possible, but I don't like to cruise that high (but I'm diesel, maybe a gasser would be fine at the higher rpms, dunno). Here by San Fran 55 is just fine in the right lane. In Chicago I'd be a speedbump in someone's rearview mirror... __________________ "... the motor car, after woman, is the most fragile and capricious thing on earth." - London Daily Mail 1908 1982 BJ42 "Krull"

07-07-08, 06:12 PM	#17
MuskieFJ IH8MUD Rookie Join Date: Dec 2007 Posts: 41	I have a 73 with the stock 3 speed and 50mph sounds like it is screaming. Believe it still has the 4.11, but without a tach not sure how fast she is turning. I have P265/75R15's on her now. Any ideas?

07-07-08, 06:42 PM	#18
brian springfield user Join Date: Feb 2003 Location: lebanon,pa TLCA# 6955 Posts: 2,721	nobody said it, so i will. it'll cruise 85mph on the highway all day long. __________________ it's only metal, we can out think it. 77-fj40 20th anniversary edition 87-fj60 216K mile DDer 93-fzj80 mall crawler toyota material distribution center. your source for Factory Service Manuals. they're alot cheaper than you think. 1-800-622-2033

07-07-08, 11:00 PM	#20
gevans IH8MUD Rookie Join Date: Jul 2008 Posts: 17	i have not had my 74 fj40 for long changed oil filter, checked brakes and fluids probably need to change brake master cylinder it is leaking a little in front of the fill chanbers where they bolt on. also need to check front and rear axles any advice or help would be appreciated.

07-08-08, 09:51 AM	#21
theo IH8MUD Lifer Join Date: Feb 2002 Posts: 1,407	Change the rear diff gear oil. The rear diff is in use full time. It needs new oil. Change the transmission oil. Same reason as above. Check the front diff oil. Doesn't need replacing as often, but if it's sludgy, you'll need to rebuild the steering knuckles. Sorry, but it's one of those things every owner puts off. And now you own it. You can put it off too, but you should at least find out where you stand. (I put it off for a couple of years. Finally got around to it after sweating through a couple months of death wobble. YMMV) ps - Welcome to mud __________________ The garage is no place to park an automobile. (TLCA-14131)

07-08-08, 10:02 PM	#22
gevans IH8MUD Rookie Join Date: Jul 2008 Posts: 17	thanks theo the knuckles a big deal ? suggestions about brake master cylinder ie hard to change out or no

07-09-08, 08:40 AM	#23
theo IH8MUD Lifer Join Date: Feb 2002 Posts: 1,407	Brake master isn't too bad. You have to be aware of the clearance/adjustment on the actuator rod and getting all the air out of the system. The knuckles are kind of a big, messy job. No special tools if you're starting from a working assembly (like you are). If you find out you need to do it, you'll want to study up first so you do it right the first time. On the other hand, you can ignore the knuckles for quite awhile and still be OK. They won't fall apart on the road; usually your steering and handling will deteriorate gradually. Search will get you all the technical info you need on those two jobs. __________________ The garage is no place to park an automobile. (TLCA-14131)

07-09-08, 08:48 AM	#24
Cruiserdrew KI6MIE Join Date: Mar 2003 Location: Sacramento, CA TLCA# 11734 Posts: 6,978	I could not agree more with the go slow advice. Even if the motor is good for 85mph the chassis is not safe at that speed. I treat 65mph as an upper limit. It's a short wheelbase high COG truck. Go slow, stay within the braking envelope and enjoy. Get a car if you want to go 70+. __________________ Andrew 1971 FJ-40 Rubicon tested, 2F powered, some mods 1976 FJ40 Rusting slowly in the back yard 1984 FJ-60 H55f, 4.11, OME, Daily Driver 1989 FJ-62 117k-son's driver for now-low and slow 1997 FZJ-80 Driveway queen

07-09-08, 02:07 PM	#25
gevans IH8MUD Rookie Join Date: Jul 2008 Posts: 17	thanks cdrew i have no prob with going slow i just thought about stress on engine and driveline i am used to driving a diesel truck at about 1700 rpm at 65 or so and now im guessing im at about 2700-3000 at 55 but hard to tell no tach and all just want to keep her together as long as possible

07-09-08, 02:14 PM	#26
Joe Egolf IH8MUD Regular Join Date: Jun 2006 Location: W.Suffield Ct Posts: 437	top speed I have a 3b diesel in my 1981 Bj42 and 100 km per hr appx 62 mph is about as hard as I want t charge in my cruiser. __________________ 1981 BJ42

07-10-08, 09:48 PM	#27
wells.jack IH8MUD Rookie Join Date: Jul 2008 Location: El Paso Texas Posts: 19	i usually hang around 55 or 60 with my '76, but i can push it to at least ~70 befor the belt starts to whistle. if i got a smaller belt i could maybe hit 80, but since all the highways around here top out at 65 theres not much reason to push the engin that hard. i get on i-10 and drive 55 in the right lane. kinda reminds me of a foghat song...

07-11-08, 10:09 AM	#28
gevans IH8MUD Rookie Join Date: Jul 2008 Posts: 17	ya wells jack the few times i have been on my end of i-10 the eighteen wheelers seem to take the most offense with the speed but they can just live with it. ps i'm as far to the east on i-10 as you can get and still stay in texas town called Orange

07-11-08, 01:30 PM	#29
Tigerstripe40 IH8MUD Addict Join Date: May 2004 Posts: 911	I routinely drive my 76 FJ40 at 65-70mph. 35" tires, 3200 rpms, 4th gear. With the saginaw power steering, tight steering components, and good spring bushings, I can drive it that fast with 3 fingers on the steering wheel (obviously I don't drive that way all the time, but I think you get the point). __________________ James Henry Wasatch Cruisers TLCA 11233 76 FJ40 'SeldomSeen' 91 VZN130 'CanOWorms'

07-11-08, 01:35 PM	#30
gevans IH8MUD Rookie Join Date: Jul 2008 Posts: 17	i'm on 31's winding a little tight for me at that speed anyone know what red line is on a 2f like mine ?