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TDI Power Enhancements Discussions about increasing the power of your TDI engine. i.e. chips, injectors, powerboxes, clutches, etc. Handling, suspensions, wheels, type discussion should be put into the "Upgrades (non TDI Engine related)" forum. Non TDI vehicle related postings will be moved or removed. Please note the Performance Disclaimer.

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Old June 4th, 2008, 12:22   #1
MojaveGolf
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Default Why are my EGT's so high??

Ok. So with the mods in my sig, and nothing beyond the stock intercooler and the mufflerectomy, my EGT's climb so fast in any gear but first that I can't have any fun with my car! I realize I need a downpipe (that and a 3" all the way back will come soon), but I'm wondering if anyone out there with similar mods is having this happen. It is very frustrating having these mods and not being able to use them almost at all.... Thanks.
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Old June 4th, 2008, 12:34   #2
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how high are they getting?
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Old June 4th, 2008, 13:01   #3
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Anything 1600 and lower is fine. What are yours going too. If they are higher than 1600 just have them remap with less fuel. Also what boost is your tune running?
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Old June 4th, 2008, 13:29   #4
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I can see 1600 in no time flat, and it's gotten to the point where I don't even put my foot in it out of fear I'll overshoot 1650 and damage my new turbo. Tune is running around 22 sustained, although I need to get a boostvalve as it will easily creep higher in 4th and 5th.
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Old June 4th, 2008, 13:35   #5
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Your bigger downpipe etc. outta help to the tune of 100*F or so.

Only 22 PSI? Your turbo should handle more boost, correct?
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Old June 4th, 2008, 13:39   #6
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I was thinking the same thing on the downpipe, maybe a bit more with it 3 inch all the way back, but right now the temps just get so high so quick that It's barely driveable beyond Ms. Daisy territory....
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Old June 4th, 2008, 13:40   #7
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If you're not running any additional boost your EGTs might get very high. You need a proper tune that balances fuel and boost. You're also air restricted on the intake side and that makes a difference.

Finally, check your timing: If it's not advanced you can see high EGTs. Set it at 70 in block 2.
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Old June 4th, 2008, 13:40   #8
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I would have kerma pull some fuel out of the tune. Does the car smoke alot?
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Old June 4th, 2008, 13:42   #9
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not sure on the boost levels...I think the 17B is happy around 22 sustained.....Anyone?
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Old June 4th, 2008, 13:43   #10
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I ran 24 with mine for over 100,000 miles.
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Old June 4th, 2008, 13:43   #11
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Oh, Q-loader. Duh. Didn't see that as a tune. I agree there's too much fuel in there. 22 PSI is a good max sustained boost for a 17, maybe 24.
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Old June 4th, 2008, 13:43   #12
MojaveGolf
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I'll email Charlie pronto and see if he can get me a fuel reduced tune....The car will give a good puff of black smoke, and haze quite heavily the short period I can have my foot in it...
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Old June 4th, 2008, 13:46   #13
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Also, the Boost gauge I'm running is fed fromt he MAP sensor, so there might be a bit of ambiguity in boost levels there...
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Old June 4th, 2008, 13:58   #14
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If its not smoking alot its not over fueled. You may a restricted cat. I would get rid of the cat. But the temps should not be that high. Mine in the summer here would get to 1600 but not as fast as you describe. But I have free flowing exhaust and intake mods.
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Old June 4th, 2008, 14:10   #15
MojaveGolf
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It smokes quite a bit, but I wouldn't say it's excessive. The cat could be the culprit. I can certainly feel some pressure build-up at WOT, but never really thought of the cat...maybe I should go and have that removed right away and see what difference it makes. Any idea what a muffler shop would charge to remove the cat?
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