performance for stock FJ40?

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Spend some time in the Technical Links section of this site and do some searches of the forum. You'll probably end up with more questions than answers, but there's a tremendous amound of information here.

Welcome to the forum,

James H
 
whenever I get a new to me Cruiser, the 1st things I do are change out the plugs(ND) cap/rotor, plug wires I use only OEM Toyota parts. Then I check the timing, ect. In most all cases this alone makes a improvment. Of course I also change all the fuilds.

Most carbs seem to like a rebuild every 100K or so, most have a secondary that is not working anymore(diaprahm bad). So yes a carb rebuild is a good thing to do(if needed) I prefer the OEM Aisin carbs.

Also if your cruiser still has the emissions on it, give it a look to make sure all the stuff is working like its suppose to. This is where the factory service manuals are worth their weight in gold.

Air intake........not gonna make any real difference.


Your 78 prolly still has points, a good upgrade IMOP is a latter model electonic ignition and dizzy. But the Pertronixs will also work.

John
 
78 should have a fully electronic distributor. If it ain't broke, don't fix it! Dirty air filters really restrict the carb, so change that. Like John said, check the timing.

If you can hook up with someone either on the board or in a local club that has a similar setup, you can find out if your 'power' expectations match what anyone else has. Cruisers are great, but they are not meant to be super fast like a car or a modern SUV.

78 carb is a little on the finicky side. I rebuilt 5 of them until I found the 'special' requirements to tweak one. You can PM dd113 on this board. I just rebuilt one for him. Ask him how he likes it.

:)
 
my bad, I thought it was 79+ for the fully electronic dizzy.

65swb45 said:
78 should have a fully electronic distributor. If it ain't broke, don't fix it! Dirty air filters really restrict the carb, so change that. Like John said, check the timing.

If you can hook up with someone either on the board or in a local club that has a similar setup, you can find out if your 'power' expectations match what anyone else has. Cruisers are great, but they are not meant to be super fast like a car or a modern SUV.

78 carb is a little on the finicky side. I rebuilt 5 of them until I found the 'special' requirements to tweak one. You can PM dd113 on this board. I just rebuilt one for him. Ask him how he likes it.

:)
 
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