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Old 04-22-2009, 02:47 PM   #36
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Re: Help - New throttle body weird behavior.

It there any way vacuum is keeping it open at the higher RPM’s? I put a big block it a truck one time, went in the street to test it with just the spring that’s on the carburetor and that baby hung open and I broke the damn motor.
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Old 04-22-2009, 02:51 PM   #37
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Re: Help - New throttle body weird behavior.

It's my guess that it was vaccuum holding it open...but it would never come down till I blipped the throttle. So, with the secondary spring, it now shots.

The lower RPM hang is not a vacuum issue right now, it's actually the TPS opening the TB open. But, it only does it after driving, if you blip the throttle, it will close up and idle down to 800 like the tune commands. I'm going to mess with the adjustment screw and see if I can't fix that too.
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Old 04-22-2009, 03:00 PM   #38
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Re: Help - New throttle body weird behavior.

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It's my guess that it was vaccuum holding it open...but it would never come down till I blipped the throttle. So, with the secondary spring, it now shots.

The lower RPM hang is not a vacuum issue right now, it's actually the TPS opening the TB open. But, it only does it after driving, if you blip the throttle, it will close up and idle down to 800 like the tune commands. I'm going to mess with the adjustment screw and see if I can't fix that too.
So let me get this right this is due to the mono blade? and it's a common issue b/w Accufab and Billetflow?

I don't understand how the Throttle plate would be sticking open? unless there is a problem with the assembly?
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Old 04-22-2009, 03:06 PM   #39
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Re: Help - New throttle body weird behavior.

Sticking open and idling at 1000-1500 is a common single blade issue. Some can adjust the TB stop screw to get rid of it...some can't.

As for the high hanging idle, I think they installed a piece of **** spring on the throttle body that couldn't combat the vacuum.

But yes, the single blades are all notorious for having a hanging idle....just not the 3/4/5k idle when driving.

I posted this on mod fords and it appears 2 other people are also having this same problem and one is at the same stage I am with the secondary spring. I'm beginning to think billetflow made their last run with springs made in china or something.
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Old 04-22-2009, 03:25 PM   #40
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Re: Help - New throttle body weird behavior.

send it back and get you an accufab...
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Old 04-22-2009, 03:29 PM   #41
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Re: Help - New throttle body weird behavior.

I don't want a silver throttle body. It doesn't match the underhood scheme at all. I'll fix this problem and see what billetflow wants to do. Or I'll get the LFP one if this one can't be fixed.
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Old 04-22-2009, 03:32 PM   #42
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Re: Help - New throttle body weird behavior.

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I don't want a silver throttle body. It doesn't match the underhood scheme at all. I'll fix this problem and see what billetflow wants to do. Or I'll get the LFP one if this one can't be fixed.
black paint is cheep
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Old 04-22-2009, 03:34 PM   #43
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Re: Help - New throttle body weird behavior.

:stupid:
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Old 04-22-2009, 03:34 PM   #44
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Re: Help - New throttle body weird behavior.

With all the **** on the throttle body that would need to be taped off/removed to paint it black, it isn't worth the effort. Not to mention the ease of scratching it vs an anodized one.
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Old 04-22-2009, 03:51 PM   #45
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Re: Help - New throttle body weird behavior.

powder coat! I have server anodized pieces and they scratch pretty damn easy too. Nahh I hope you get it worked out though.
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