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Discussion Starter · #1 ·
In an effort to get my carb (stock carb on a '85 Toyota) to run better at angles I set my float level on the low side. I also attached a rubber hose to the vent in the venturi and routed it up and inside the air cleaner. Today I bought a fuel pressure regulator. I've been told a bunch of different setting so try. Some have said 1.5-2.0 psi, while others have said that 2-3 psi works well. I want to run the lowest psi possible without starving the engine. How do I know what the minimum psi is that is safe? I don't want to wreck my engine <IMG SRC="smilies/maggie.gif" border="0"> <IMG SRC="smilies/crybaby2.gif" border="0">.


thanks,
 

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I have a weber so it's not exactly the same, but I used to run mine at 1.5 and I still had problems on the steep stuff. This last weekend I went to moab and turned it to the minimum 1 psi and this time I had no problem running up the steep slickrock. Best time I've had down there in a long time. I'm not sure if that was the ticket but it sure is a coinkydink. <IMG SRC="smilies/biggrin.gif" border="0">
 

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If it stalls or boggs-out, it may be set too low, but it will not harm the engine.
 

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Just start with the lowest and work your way up till you are happy. I run 2.5, but I have a six in my jeep
 

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If its carbed it shouldn't harm the engine. Crank it down till it stalls then fire it up on notch. The setting might be different for the road then for wheeling.

I had a weber that I set at 4 on the road and 1 on the trail.

arndog
 

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Discussion Starter · #6 ·
Originally posted by dirtrod:
<STRONG>If it stalls or boggs-out, it may be set too low, but it will not harm the engine.</STRONG>
Oh this is good news. I thought that I might be running the engine to lean if I had the psi turned way down.
 

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I have mine set to 2psi works great. Big difference on the trail compared to when I was running 6psi.
 

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Discussion Starter · #8 ·
I just did some testin and I was able to cruise in third gear at 4500 rpm's with the fuel pressure regulator set at 1 psi.

Thanks for the help <IMG SRC="smilies/grinpimp.gif" border="0">.
 
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