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Hunting idle and unusually hard lope

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Old 02-13-2004, 06:02 PM
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Default Hunting idle and unusually hard lope

I just installed a cam and RADIX kit on my truck. The cam is 216/220 .525/.532 114. I got everything running and notice it lopes pretty hard until the STFT's get up to about +30, then it eases up. The STFT's keep climbing on up to 50+ though.

I multiplied the VE table by 80% up to 1200 rpm and added 3* timing up to 1000 rpm. I also raised the idle RPM by 150.

Can someone help me out with tuning this thing please?

EDIT: I want it to lope a little, but I want it to come down and idle decently too.
Old 02-13-2004, 06:21 PM
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Did you do the IFR table to make up for the 42lbers that are ussually on the Radix? If so I would say you might have a vacuum leak.
Old 02-13-2004, 07:01 PM
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Yes, I copied lots of tables over from the RADIX tune from my 02 over to my 03 file.
Old 02-13-2004, 08:06 PM
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Go by the L-terms and adjust the injector scale to get them around 0..I think the IFR should be around 4.25..Ussing the S-terms can make you go nut's since they change so fast.

Are you running the stock MA with the screen?
Old 02-14-2004, 12:07 AM
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I do need to change back to the original MAF ... I threw a lean code later tonite.

Which way do I need to go with the IFR? Up or down? What about the hard loping. I mean it's a small cam, but it was loping hard.

I have the IFr set at 5.25, which is what the original RADIX tune had them set to.
Old 02-14-2004, 01:25 AM
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Would a vacuum leak do this too?

I don't know if I said this earlier, but the STFT's creap all the way up there. They don't like go up all at once.
Old 02-14-2004, 08:03 PM
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I could really use some advice fellas
Old 02-15-2004, 12:00 AM
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Hey Flyer, so you've got the IFR around 5.25 from the Radix tune and 80% stock VE below 1200. Idle speed? You might want to try going 60% stock VE at 400 and 800 on the VE table. Check this thread... link
Old 02-15-2004, 12:53 AM
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From what I've described ... do you think I could have a vaccum leak? I got to thinking about it, and it may even be an exhast leak at the headers .... hrmmmmmmm




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