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ddillenger
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« Reply #30 on: July 10, 2013, 02:10:22 PM »
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That's the first thing I asked mallard to check.
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vwaudiguy
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« Reply #31 on: July 10, 2013, 08:15:47 PM »
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Fairly sure it's similar to the effect of letting the air out of a balloon with the end pulled tight. It's not leaking, just flapping near the transition form vac to pressure.
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"If you have a chinese turbo, that you are worried is going to blow up when you floor it, then LOL."
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savages4
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« Reply #32 on: July 10, 2013, 09:36:16 PM »
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N249 intact. DVs are tested and fine they are 710Ns I bought new about 8 months ago. No leaks.
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sweegie
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« Reply #33 on: July 12, 2013, 08:37:40 AM »
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So, although my issues may be slightly different to the OP (the rs6 comes with 710P valves which have softer springs) as the symptoms are identical, I think the input is relevant. My 710N valves are brand new and have always made the noise.
Yesterday I made changes to the n249 maps SVDLDUVS and KFSDLDSUA and the noise has since stopped. Obviously I'll monitor it over the next while.
I'd be surprised if an intercooler swap caused enough variance on the high pressure side of the valve to require a change, but I'd also be keen to know if changing these maps helps too.
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savages4
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« Reply #34 on: July 14, 2013, 11:44:53 AM »
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What maps did you alter, mind posting of a screen shot of the changes so I can give it a try?
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sweegie
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« Reply #35 on: July 15, 2013, 09:18:06 AM »
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I just altered the SVDLDUVS and KFSDLDSUA maps mentioned. As you're running an S4, you dont need to get fancy - try adding +15% to all values in both maps & see if it helps. My Rs6 is a bit different and i had to copy some of the s4 values over as one of the tables was zero'd across the board.
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savages4
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« Reply #36 on: July 15, 2013, 11:47:45 PM »
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Happen to know the address's for the m-box on those maps?
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ddillenger
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« Reply #37 on: July 16, 2013, 12:07:54 AM »
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SHOW ME THE RAND!
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Please, ask all questions on the forums! Doing so will ensure the next person with the same issue gets the opportunity to learn from your experience!
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DDillenger84(at)gmail(dot)com
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sweegie
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« Reply #38 on: July 16, 2013, 03:15:41 AM »
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SHOW ME THE RAND!
^^  I'm in a good mood today though, so here's a bone.... You'll need SDLDSUA instead of KFSDLDSUA as the S4 has no nmot axis for this map. Map addresses are for 8D0907551M (360857) SDLDSUA (16x1) = 0x11119 SVDLDUVS (8x1) = 0x196F5 Factors and other stuff can be had from the fully defined G box file that's floating around.  |
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ddillenger
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« Reply #39 on: July 16, 2013, 09:39:46 AM »
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I told mallard I'd give him the addresses for 3.4 rand (roughly 34 cents). I was just messing with him I sent him an xdf with them included last night. Still don't have my rand  |
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Please, ask all questions on the forums! Doing so will ensure the next person with the same issue gets the opportunity to learn from your experience!
Email/Google chat:
DDillenger84(at)gmail(dot)com
Email>PM
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savages4
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« Reply #40 on: July 16, 2013, 02:04:25 PM »
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So far increasing both those map by 15% has eliminated my honk |
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sweegie
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« Reply #41 on: July 16, 2013, 02:23:02 PM »
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Great news Do I qualify for Rand too please? :-D |
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ddillenger
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« Reply #42 on: July 16, 2013, 02:30:37 PM »
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We might have to unionize. My rand still hasn't arrived.
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Please, ask all questions on the forums! Doing so will ensure the next person with the same issue gets the opportunity to learn from your experience!
Email/Google chat:
DDillenger84(at)gmail(dot)com
Email>PM
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sweegie
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« Reply #43 on: July 16, 2013, 04:52:15 PM »
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Tuners of the world unite Maybe we can renegotiate for a good Bunny Chow recipe if he's from SA? |
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savages4
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« Reply #44 on: July 22, 2013, 11:36:32 PM »
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So this hasn't eliminated the problem but has made it better... Ultimately I think I'm going to have to get some forged piston type diverters as this noise is quite annoying when cruising on the highway under light throttle situations.
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