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Old 04-04-2008, 01:32 PM
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Default FJ60 Carb: Altitude Adjustment

Guys,

As some of you know, I am moving up to Colorado from Texas this summer and have an FJ60 with the stock Aisin carb. Do I need to swap the jets when I get to Colorado or does the carb automatically adjust for the altitude? I have heard that the HAC valve does this, but I want to make sure before I get up there and can't drive over 20 MPH!

Thanks,

Carson
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Old 04-04-2008, 01:43 PM
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Don't know for certain, but my gut feel is that the HAC will do most of the work. I'm not sure any FJ60 is spec'd as a "high-altitude" spec around here.
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Old 04-04-2008, 01:55 PM
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Quote:
Originally Posted by subzali View Post
Don't know for certain, but my gut feel is that the HAC will do most of the work. I'm not sure any FJ60 is spec'd as a "high-altitude" spec around here.
That is good to hear. We lived in Denver when I was a kid and moved to Mississippi and the old school carbureted Volvo we had never ran right down there. This made me wonder about the 60...
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Old 04-04-2008, 02:29 PM
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You won't do much better than 20mph on the hills here in ANY 60, regardless of the carb settings.

I had my 60 carb rebuilt by JimC (TLC performance) and he asked about elevation and said he would set it up accordingly. Not sure what he did.

Main concern with bringing your 60 here is making sure it will pass emissions.

You'll get used to slow lane.
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Old 04-04-2008, 04:32 PM
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If you wagon is in good tune, and the High Altitude Compensation (HAC) is complete and functioning, there should be no reason to change the jets.

Advance the timing a little bit and enjoy.
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Old 04-04-2008, 07:05 PM
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Sounds good; thanks for the info.

I expected to be in the slow lane anyway!
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Old 04-10-2008, 03:40 PM
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Quote:
Originally Posted by MDH33 View Post
You won't do much better than 20mph on the hills here in ANY 60, regardless of the carb settings.

Main concern with bringing your 60 here is making sure it will pass emissions.

You'll get used to slow lane.
Speaking of passing emissions, does Colorado have an age cutoff for emissions exemption? I think it is 25 years here.
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Old 04-10-2008, 03:44 PM
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Quote:
Originally Posted by cbmontgo View Post
Speaking of passing emissions, does Colorado have an age cutoff for emissions exemption? I think it is 25 years here.
yep, 25 here if you buy collector's plates, but you will have to pass emissions before you can get the plates
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Old 04-10-2008, 06:16 PM
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I looked at the CO dept of Rev website and found that vehicles 25 years and older qualify for collector plates but on the emissions pages, the vehicles exempted didn't include collectors plated vehicles. Also on the emissions page, they still have 1982 as the cutoff for the 2 speed tail pipe test vs. the RM240 dyno test. Are you sure that there is a 25 year limit on emissions?
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Old 04-10-2008, 06:55 PM
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This is interesting. I do think mine will pass emissions, but what happens if it does not? Mine is an '85, so I've got a little longer before it hits the 25 mark.

All of my emissions stuff is still there; I have even replaced a few things. I'll just have to wait and see what happens.

Thanks for the input--
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