Input Please - 2002 TA A4 + 427 & D1SC = Glowing Headers at Cruise??

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11-17-2005, 08:41 PM

#21

Z8'S

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I had this same problem with my LT1 .Turned out the cam was ground all out of whack .Verify your cam specs, mistakes do happen when they grind them.

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11-21-2005, 06:36 AM

#22

Mike Norris

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Thanks again for the input. All tubes on both headers were the issue.

Mike

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11-21-2005, 05:24 PM

#23

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huh? tubes?

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11-21-2005, 08:59 PM

#24

SideStep

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Quote:

Originally Posted by Mike Norris

I will see today if the extra timing helped at the cruise area. It looks like a stock cube engine at normal idle area will have 39-40* timing. With the extra cubes and D1SC the MAF registers quite a bit extra air which the MAF sees as more load thus reducing timing to the 33* area according to the timing tables.

I am a little confused here.. How did adding timing cool off the exhaust charge??? I can get my headers to glow red-hot also... but I do it by adding to much timing...

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