Boost oscillation on stock tune + bolt-ons?

themyst · 07-11-2010, 01:50 PM

I am currently on stock tune due to the meth tank tap cracking, but noticed that even with my meth kit disabled, the car oscillates boost between 8-10 psi on stock.

My bolt-ons are downpipes, DCI, FMIC. Would the bolt-ons cause my car to oscillate on stock tune?

themyst · 07-11-2010, 07:31 PM

its not a pleasant feeling, it feels like the car is bucking maybe due to bolt-ons with no tune?

OpenFlash · 07-11-2010, 08:17 PM

It shouldn't buck at all. Even with all mods with a stock tune. If boost is actually oscillation (up-down-up-down-up-down) between 8-10psi during steady state WOT, something is wrong. If you are just talking about boost spiking 2psi and then settling down, that's probably normal.

Shiv

itsbrokeagain · 07-11-2010, 08:39 PM

Quote:

Originally Posted by coldasicex5

ur in NY and wit this weather we're having this doesn't surprise me....

Mels car was doing the same thing today on the GSP racing an E36 M3. But it was only 1-2 psi or so, and transitioning into boost is where I would feel it. But 3rd-4th gear pulls it was pretty solid.

Temps were up in the 90s and humidity was up there.

Jeff@TopGearSolutions · 07-11-2010, 08:44 PM

Its the driver, im sure

themyst · 07-11-2010, 08:54 PM

Quote:

Originally Posted by Matt@Camber-Toe

Mels car was doing the same thing today on the GSP racing an E36 M3. But it was only 1-2 psi or so, and transitioning into boost is where I would feel it. But 3rd-4th gear pulls it was pretty solid.

Temps were up in the 90s and humidity was up there.

It only does it in 2nd gear, 3rd and 4th are fine, must be weather related who knows. I'll be stock for a few days while my new tank tap comes in

07-11-2010, 01:50 PM	#1
themyst Major General 189 Rep 6,631 Posts Drives: '16 MK7 GTI Join Date: Feb 2009 Location: NYC iTrader: (8)	Boost oscillation on stock tune + bolt-ons? I am currently on stock tune due to the meth tank tap cracking, but noticed that even with my meth kit disabled, the car oscillates boost between 8-10 psi on stock. My bolt-ons are downpipes, DCI, FMIC. Would the bolt-ons cause my car to oscillate on stock tune? __________________ E90 LCI N54 6AT
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07-11-2010, 07:31 PM	#2
themyst Major General 189 Rep 6,631 Posts Drives: '16 MK7 GTI Join Date: Feb 2009 Location: NYC iTrader: (8)	its not a pleasant feeling, it feels like the car is bucking maybe due to bolt-ons with no tune? __________________ E90 LCI N54 6AT
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07-11-2010, 08:17 PM	#3
OpenFlash 1806 Rep 17,960 Posts Drives: A Lot Join Date: Sep 2006 Location: SF Bay, CA iTrader: (0) Garage List 2018 Ducati Panigal ... [0.00] 2016 Mazda CX5 [0.00] 2017 Aprilia Tuono ... [0.00] 2019 BMW M2 Competi ... [0.00] 2015 BMW M5 Competi ... [10.00] 2016 Ducati XDiavel S [0.00] 2016 AMG GT S [0.00] 2011 Ferrari 458 It ... [0.00] 2017 Charger Hellcat [0.00] 2015 KTM Super Duke ... [0.00] 2016 KTM RC390 [0.00]	It shouldn't buck at all. Even with all mods with a stock tune. If boost is actually oscillation (up-down-up-down-up-down) between 8-10psi during steady state WOT, something is wrong. If you are just talking about boost spiking 2psi and then settling down, that's probably normal. Shiv
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07-11-2010, 08:44 PM	#5
Jeff@TopGearSolutions 3474 Rep 79,211 Posts Drives: C6 Z06, 09 335i, 10 335xi Join Date: Dec 2008 Location: www.TopGearSolutions.com iTrader: (37)	Its the driver, im sure
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