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Just got new turbos..quick question
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11-11-2012, 10:53 PM | #1 |
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Just got new turbos..quick question
how long do the professionals recommend that our turbos be driven around on (less spirited) until we can really start tearing into them.
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11-11-2012, 11:04 PM | #4 |
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If I were breaking in new turbos, I'd start on a stock map and gradually work my way up to going WOT. Then gradually increase boost from there, going to a 12-13psi map for a few weeks, then 14-15psi for another few weeks, then if you want or used to run meth or e85 get into that after a while on the "lower" boost maps. I don't consider myself to be of professional caliber FWIW, the above just kind of seems to be more of a cautious common sense approach. I'd like to know too, because my wastegate rattle is terrible and the car has been pushed very hard on the same set of turbos for 77k miles now, so I'll be in the same boat soon enough.
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11-11-2012, 11:27 PM | #8 |
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Turbos have no real break in period per say. The reason you have to break in a motor is to seat the rings etc. Turbos have no rings that need to be seated. What some, not all do have it what is called a carbon dam, which is a groove right above the piston ring groove on the turbine side. Oil gathers in this groove and the heat of the exhaust cokes this oil and turns into carbon and it helps the turbo seal by letting less oil actually reach the turbine side piston ring. A few blasts on the highway building some heat is usually enough to get the carbon dam going. Whenever we build a turbo we fill the groove with a petroleum based grease so they can coke right away. Besides that don't worry about it, they are good to go.
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11-11-2012, 11:42 PM | #9 |
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Nice, good information. Thank you.
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11-11-2012, 11:52 PM | #10 | |
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The reason for this, is a new engine has microscopic peaks and valleys in the metal no matter how well its lathed (which is why compression on a new engine is low compared to when its 'broken in'). Going WOT right after its warm, shaves the peaks from the cylinder wall creating to rings to seat properly instantly. Babying a new engine actually doesn't allow the piston rings to seat properly. |
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11-11-2012, 11:54 PM | #11 | |
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11-12-2012, 12:25 AM | #12 |
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Even more off topic is that in today's modern age engines are "broken-in" and ran before they are even placed in the vehicle itself.
So it makes no difference. |
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11-12-2012, 06:00 AM | #13 | |
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2011 335is "Redrkt" 6 MT
DocRace 6266 Single Turbo - Fuel it stage 3 LPFP - Fuel it PI - spec stage 3+ clutch - mfactory SM flywheel - 100% E85 - VRSF 7.5" intercooler - VRSF charge pipe w/ HKS BOV - JB4 - MHD back end flash 768 whp 695 ft lbs - E85 - 32PSI |
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11-12-2012, 07:04 AM | #14 | |
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11-12-2012, 09:12 PM | #15 |
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