The Best Carb?

zach 38 · 04-09-2008, 06:44 PM

im looking to get rid of my stock carburetor from the strait 6 f motor on my fj40 and im thinking about geting a holly for it but what kinde should i get? i have a friend that has a holly 400 on his fj40 and likes it, but i would like to no what other people have on theres and what they like or do not like about it. im planning on haveing it as a light wheeler and a DD.

turnmeover · 04-09-2008, 06:53 PM

go with the downey tbi conversion. Increased milage,hp, and torque . Nor do they flood on extreme angles.

Eskimo · 04-09-2008, 09:13 PM

The best carb has fuel injectors sticking out of it.

q-jet is a distant second, with everything else behind it.

PJohnson · 04-09-2008, 10:16 PM

Aisin carbs are very well engineered for the vehicle. I would just rebuild it.

BTW,

welcome Noob

Phil

65SWB45 · 04-09-2008, 10:27 PM

There are places on the web where you can post up that you are willing to trade your Aisan carb for an aftermarket and you will get plenty of offers for just about any aftermarket carb you desire. Makes you stop to wonder what they know that you don't.

Pooze · 04-09-2008, 10:47 PM

With the stock 6 I liked the weber, i have heard a lot of things on the Holley if you drop the float 1/8 and extend the overflow at a 90 that it is a great carb also. I was just told that by a few people dont really know from experience though.

DHONDAGOD · 04-10-2008, 02:56 AM

Holley carbs SUCK on a wheeler... Period...

If you want to have your carb rebuilt and made to work the way Toyota intended it call this guy;

http://www.marksoffroad.net/index2.html

Chris

dog walker · 04-10-2008, 09:16 AM

For performance, I like the weber 38mm, but it'll cost you over $400 to get started, then it'll rape you at the gas pump. I've retrofitted a couple Motorcraft 2bl's on F engines with very good results, you can pick them rebuilt from you're local parts house for under a $100 and either use a Holley adapter or make you're own. Motorcrafts work as good as quadrajets off road, and you can get them in the 350 cfm range unlike a quadrajet which I think is more like 600-750 cfm.

fj40charles · 04-10-2008, 03:00 PM

Quote:

Originally Posted by Eskimo

The best carb has fuel injectors sticking out of it.

q-jet is a distant second, with everything else behind it.

I recommend a TBI carb...

wayneraintree · 04-10-2008, 07:07 PM

I had a Weber.... ate fuel like crazy.
Stock ran well and worked well offroad once rebuilt (went this route a couple times from Marks and Jim C.).... overall, a great choice.

Then I got a diesel and...

I had the downey EFI kit... PO installed it, didn't idle right, I could not get it right....

Consider a a 3FE FI conversion from junkyard stuff... intake, sensors, air intake, fuel pump and computer...not 100% sure it would work on an F but 2F is documented.

Have any pics of yer 40? I could opinionate moreif I saw it

bustanutley · 04-10-2008, 07:20 PM

Webber 38 runs great once you tweek them, they are almost always jetted too rich, i stepped mine down a bunch, but I am also a mile high. Milage was good the last time I drove it on the road. You need to drop the float level so they don't flood at angles, and breather extensions are a good idea also although I have yet to do that.

The stock carbs work very well when in good condition, they are a bit more complex though. Getting your stock unit rebuilt by a pro is your best bet.

Killerpee · 04-10-2008, 08:29 PM

[quote=wayneraintree;8125073]
Consider a a 3FE FI conversion from junkyard stuff... intake, sensors, air intake, fuel pump and computer...not 100% sure it would work on an F but 2F is documented.[quote]

Any links to some threads on a N/A Fuel Injected 2F using 3FE stuff??

wayneraintree · 04-11-2008, 05:47 AM

[quote=Killerpee;8125374][quote=wayneraintree;8125073]
Consider a a 3FE FI conversion from junkyard stuff... intake, sensors, air intake, fuel pump and computer...not 100% sure it would work on an F but 2F is documented.

Quote:

Any links to some threads on a N/A Fuel Injected 2F using 3FE stuff??

Here is the article from Toyota Trails:

2005 J/A Arron Thompson FJ62, Version 2F-E

MUD thread with a whirrlllllllll

http://forum.ih8mud.com/40-55-series...o-my-fj40.html

more Pirate cruiser discussion:

http://pirate4x4.com/forum/showthrea...&highlight=2FE

wayneraintree · 04-11-2008, 06:53 AM

http://forum.ih8mud.com/40-55-series...king-2f-e.html

more discussion: looks like you need later 2F flat top piston, just one of a few issues to address...

04-09-2008, 06:44 PM	#1
zach 38 Registered User Join Date: Mar 2007 Member # 88131 Posts: 5	The Best Carb? im looking to get rid of my stock carburetor from the strait 6 f motor on my fj40 and im thinking about geting a holly for it but what kinde should i get? i have a friend that has a holly 400 on his fj40 and likes it, but i would like to no what other people have on theres and what they like or do not like about it. im planning on haveing it as a light wheeler and a DD. Last edited by zach 38; 04-09-2008 at 11:36 PM.

04-09-2008, 09:13 PM	#3
Eskimo Registered User Join Date: Mar 2002 Member # 10429 Location: Danville, PA Posts: 4,308	The best carb has fuel injectors sticking out of it. q-jet is a distant second, with everything else behind it. __________________ Rich Q. FJ-40 Cruggy - tuned 5.3/4WS rockwells/linked/42's

04-09-2008, 10:16 PM	#4
PJohnson Rock God Join Date: Feb 2000 Member # 263 Location: Gilroy, CA Posts: 1,197	Aisin carbs are very well engineered for the vehicle. I would just rebuild it. BTW, welcome Noob Phil __________________ 1966 FJ45 LPB 1973 FJ40, beeropener http://www.mta4x4.com TLCA Chapter Delegate, TLCA#9166 Increasing my post numbers one pad at a time... Support the innovators of our sport, buy from Marlin Crawler http://www.marlincrawler.com Last edited by PJohnson; 04-10-2008 at 08:41 AM.

04-09-2008, 10:27 PM	#5
65SWB45 Desert Rat Join Date: Feb 2004 Member # 27432 Location: going 45 Posts: 3,697	There are places on the web where you can post up that you are willing to trade your Aisan carb for an aftermarket and you will get plenty of offers for just about any aftermarket carb you desire. Makes you stop to wonder what they know that you don't. __________________ MarksOffRoad.net Originally Posted by lc tpi ...if I have to buy them from Trail Gear I guess I dont need them. 65SWB45, 64LWB45, 68FJ40, 72VJ40, 76K5, 73Sub454, 97Sub5.7, 2002 Trailblazer tlca #1086 member: Trail Crew-L.A. TLCA, Elwood Chapter, TLCA

04-09-2008, 10:47 PM	#6
Pooze Granite Guru Join Date: Sep 2005 Member # 104239 Location: Lake Tahoe, Posts: 865	With the stock 6 I liked the weber, i have heard a lot of things on the Holley if you drop the float 1/8 and extend the overflow at a 90 that it is a great carb also. I was just told that by a few people dont really know from experience though. __________________ 1978 FJ40,383 stroker, 350,205,corp 14,dana 60 detroits 5.13's 42" Irocs, and a little tubing. 1971 FJ55,om617,sm420 in the process 2004 F250 http://www.delalbright.com/Rubicon/buy.htm http://www.sharetrails.org/

04-09-2008, 06:53 PM	#2
turnmeover Registered User Join Date: Dec 2007 Member # 105563 Location: ocala, Florida Posts: 115	go with the downey tbi conversion. Increased milage,hp, and torque . Nor do they flood on extreme angles.

04-10-2008, 09:16 AM	#8
dog walker Super Moderator Join Date: Feb 2000 Member # 156 Location: Orangevale, CA Posts: 6,422	For performance, I like the weber 38mm, but it'll cost you over $400 to get started, then it'll rape you at the gas pump. I've retrofitted a couple Motorcraft 2bl's on F engines with very good results, you can pick them rebuilt from you're local parts house for under a $100 and either use a Holley adapter or make you're own. Motorcrafts work as good as quadrajets off road, and you can get them in the 350 cfm range unlike a quadrajet which I think is more like 600-750 cfm. __________________ Jeff Fretwell

04-10-2008, 07:07 PM	#10
wayneraintree Trail Riding Life Join Date: Feb 2003 Member # 16988 Location: Northern KY Posts: 422	I had a Weber.... ate fuel like crazy. Stock ran well and worked well offroad once rebuilt (went this route a couple times from Marks and Jim C.).... overall, a great choice. Then I got a diesel and... I had the downey EFI kit... PO installed it, didn't idle right, I could not get it right.... Consider a a 3FE FI conversion from junkyard stuff... intake, sensors, air intake, fuel pump and computer...not 100% sure it would work on an F but 2F is documented. Have any pics of yer 40? I could opinionate moreif I saw it __________________ JV Rally post #546 Tellico Rally post #138 Stay well, Jeffrey Last edited by wayneraintree; 04-10-2008 at 07:08 PM.

04-10-2008, 07:20 PM	#11
bustanutley Registered User Join Date: Oct 2003 Member # 23362 Location: CrAwLoRaDo Posts: 432	Webber 38 runs great once you tweek them, they are almost always jetted too rich, i stepped mine down a bunch, but I am also a mile high. Milage was good the last time I drove it on the road. You need to drop the float level so they don't flood at angles, and breather extensions are a good idea also although I have yet to do that. The stock carbs work very well when in good condition, they are a bit more complex though. Getting your stock unit rebuilt by a pro is your best bet. __________________ 1970 FJ40 rollin on foDees! HOMEGROWN

04-10-2008, 08:29 PM	#12
Killerpee Rock God Join Date: Nov 2002 Member # 14712 Location: Texas Posts: 1,577	[quote=wayneraintree;8125073] Consider a a 3FE FI conversion from junkyard stuff... intake, sensors, air intake, fuel pump and computer...not 100% sure it would work on an F but 2F is documented.[quote] Any links to some threads on a N/A Fuel Injected 2F using 3FE stuff?? __________________ Needed: Volvo chromo portal gears

04-11-2008, 06:53 AM	#14
wayneraintree Trail Riding Life Join Date: Feb 2003 Member # 16988 Location: Northern KY Posts: 422	http://forum.ih8mud.com/40-55-series...king-2f-e.html more discussion: looks like you need later 2F flat top piston, just one of a few issues to address... __________________ JV Rally post #546 Tellico Rally post #138 Stay well, Jeffrey

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