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Radix not performing at track.

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Old Sep 30, 2007 | 04:17 AM
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Default Radix not performing at track.

6.0/Radix/2.9 pulley. I lost time at the track from when I was NA. Is the 220/220/114 LSA cam killing me? I could put a stock cam in if you guys think it would help. The truck is much faster on the street, but was being a dog at the track, especially up top in second and third gears. IAT's didnt get over 150's. Traction sucked, but still, I couldn't even break 100 mph. Should I be running more than 17* timing? If anyone has any ideas, please post. Thank you all once again.
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Old Sep 30, 2007 | 05:46 AM
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List of mods other than the cam?
Do you have a T/Q?
Times before and after?
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Old Sep 30, 2007 | 08:14 AM
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I was running a 218/218 114 cam with my radix 6.0 combo with 2.75 pulley. It would trap 108-109 every time. Best of 12.31 with others in the 12.2-12.4x range.

I'd bet its a tuning issue. Not trapping 100??? Did you log the runs?
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Old Sep 30, 2007 | 08:28 AM
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If everything is functioning correctly then it must be tuning or very poor traction, lol. What were you times, 60' etc?
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Old Sep 30, 2007 | 09:02 AM
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Originally Posted by BigTex
I was running a 218/218 114 cam with my radix 6.0 combo with 2.75 pulley. It would trap 108-109 every time. Best of 12.31 with others in the 12.2-12.4x range.

I'd bet its a tuning issue. Not trapping 100??? Did you log the runs?



Post up a scan of the run and/tune...in the tuning section ofcourse.
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Old Sep 30, 2007 | 10:05 AM
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I think 60 foot times are going to be the key to your problems. Who tuned the truck? As the others requested, post up some screen shots of the data log.
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Old Oct 1, 2007 | 04:51 PM
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Here's a log of me driving out to a private road and making a 0-100 pass. As you can see this would have been about a mid-high 14 second pass. This is the Magnuson superchips engine tune, with adjusted idle and transmission tables by myself. I also have long tubes w/ 2.5 duals, 3000 stall (which stalls to like 4000 now) Airaid, electric fans, TR6 plugs and 4.10 gears. Traction is poor as you can see. The thing is, the truck just dies up top. Lots of KR which is probably false but I haven't tuned it out yet, though I sped up the decay. BigTex may remember my truck always showed loads of KR when he scanned it once. I may tone down the sensors like I had them before the Radix. Do I need to add more timing for the TR6 plugs?

Also, I'm very happy with the Radix, and I knew I would have some complications since the truck isn't stock. So don't think I'm complaining about the product itself.
Attached Files
File Type: hpl
truckrunningshitty2.9pulley.hpl (106.7 KB, 99 views)
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Old Oct 1, 2007 | 06:52 PM
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uhh is the belt still on it?
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Old Oct 1, 2007 | 09:13 PM
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I suppose it could be slipping some, but I didn't notice any belt dust under the hood, like some people with slipping belts have mentioned.
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Old Oct 1, 2007 | 09:38 PM
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Look at your O2 MV they are almost 0, do you have any fuel pressure? Your O/2s should be in the 890-920mv range at 100% throttle
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