I have never needed a vent. Bottom mount, 4 different turbos, 3 different manifolds, gravity drain on some, 2 different scavenge pump systems on others. Always used a restrictor, always ball bearing turbo, boost as high as 24 psi.
HPF was an early user of vents. They found it necessary only on high boost cars. Their kits all used scavenge pumps and mostly used journal bearing Precision turbos (jb tend to require more oil). Search HPF drain vent.
I don't see any reason why a vent would hurt, so adding on should do no harm. I don't think a scavenge pump is relying on suction so a vent won't cause it to suck air. I think scavenge pumps work best with the drain line to them sloping gently down from the turbo. I would not ask one to pull the oil uphill, but they can pump uphill for the return.
1996 332IS
Built 3.2
CES/Steed TS Precision 6466, spraying a "$π!℅" load of meth.
Technique Tuning 80# tune.
1/4 mile 10.84 @ 136.72
Your 1 and only stop for all your BMW performance needs
WWW.CESMOTORSPORT.COM
Thanks!
My Precision turbos were a pain in terms of oil burning too. My China turbos have been perfect other than the one I have on my E36 is beginning to smoke pretty badly at times. I'm probably going to play around with venting the drain like this since I've never tried it.
I love being from the state that's about to elect a kiddie diddler to the US senate...
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Innocent... until murdered in his front yard by an upstanding citizen.
Lets fuck here on the carpet baby
making love tonight
when the drugs dont kill, they make things better
getting puff from district lines
cock dance
cock dance
Kiss is rough but it aint enough,
I feel like pussy cocaine
kiss is rough but enoughs enough
I feel like... pussy cocaine
keep your clothes landing line
bend on over for a sixty nine
sexy music on to make you hard
keep your cash for the boulevard
Pussy cocaine
kids got talent.
328i Sedan Twin s366's, 6.0LS, TH400, MS3 Ultimate
9.20 at 150 on 22psi
Ken
95' Dakar M3
(GT35) 500whp+ and no clue what I'm doing....
Steedspeed Twin-scroll Manifold, Wiseco 8.8:1 CR, K1 Rods, Supertech Valvetrain, ARP Main Studs, o-ring block, GTR 12mm head studs, GT35R with 86mm HTA billet compressor wheel (GT3586RHTA) Twin-Scroll 1.06 AR, Schrick Cams, TRM Tuning, 6 Speed Transmission, UUC Twin Disc Clutch, HFS-6 W/M injection, Zeitronix, Coilovers, Chassis Stuffs.
DSS driveshaft vibrates like a MFER. It is way beyond anything I have ever experienced. Entire car shakes, windows rattle, console is shaking at 90+ mph. I expected some vibrations, this is way beyond tolerable. I got under the car and can see the DS physically spinning out of round. No way that's normal.
Talked to the guy I bought it from and he said it was smooth with zero vibrations whatsoever.
Your description is a little worse than it should be. Maybe the bolts are not tight. Dss often sends the wrong bolts — too short, sae instead of metric, etc and you have to fix the problem.
Try switching the adapter orientations.
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1989 535i - sold
1999 M3 Tiag/Dove - sold
1998 M3 Turbo Arctic/black - current
2004 Built motor TiAg/Black - Sold
2008 E61 19T Turbo-Wagon - current
2011 E82 135i - S85 Swap - current
1998 M3 Cosmos S54 swapped Sedan - current
1998 Turbo: PTE6870 | 1.15 ar | Hp Cover, Custom Divided T4 bottom-mount, 3.5" SS exhaust, Dual Turbosmart Compgates, Turbosmart Raceport BOV, 3.5" Treadstone Intercooler, 3.5" Vibrant resonator and muffler, Arp 2k Headstuds | Arp 2k Main studs | 87mm Je pistons | Eagle rods | 9.2:1 static compression, Ces 87mm cutring, Custom solid rear subframe bushings, Akg 85d diff bushings, 4 clutch 3.15 diff, , Poly engine mounts, UUC trans mounts W/ enforcers, 22RPD OBD2 Stock ECU id1700 E85 tune, 22RPD Big power Transmission swap w/ GS6-53
The dreaded DSS vibration is more of a scary sound than a shake.
'97 M3, Estoril blue, 2 dr, euro 6-spd, EFR 9180 divided T4 .92 IWG, RK tuning, CP 8.5:1 pistons, Eagle rods, Schrick cams, L19 11 mm ARP studs, O-ringed block, Supertech stainless/inconel valves, Supertech springs & Ti retainers, ported head, S54 oil pump/pan, 80 lb. injectors, OBD1 intake manifold, Steedspeed twin scroll T4, 3.5" SS exhaust, eBoost2 EBC, HFS-4 W/M injection, AEM Failsafe, Zeitronix data logger, Racelogic TC, OpenOBC w. ethanol %, Ireland Eng. engine mounts, UUC black tranny mounts w. enforcers, UUC twin disc feramic, ARC-8's, MCS 2-ways, Z3 rack, Rallyroad strut bar, X brace, Eibach sway bars, Ground Control LCAB bushings, Bimmerworld RTAB's, Powerflex subframe bushings, 210 4-clutch LSD, Stoptech BBK, titainium shims, steel braided lines, brake cooling ducts.
Yea nah, shouldnt be doing that at all.
Yeah or something
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1989 535i - sold
1999 M3 Tiag/Dove - sold
1998 M3 Turbo Arctic/black - current
2004 Built motor TiAg/Black - Sold
2008 E61 19T Turbo-Wagon - current
2011 E82 135i - S85 Swap - current
1998 M3 Cosmos S54 swapped Sedan - current
1998 Turbo: PTE6870 | 1.15 ar | Hp Cover, Custom Divided T4 bottom-mount, 3.5" SS exhaust, Dual Turbosmart Compgates, Turbosmart Raceport BOV, 3.5" Treadstone Intercooler, 3.5" Vibrant resonator and muffler, Arp 2k Headstuds | Arp 2k Main studs | 87mm Je pistons | Eagle rods | 9.2:1 static compression, Ces 87mm cutring, Custom solid rear subframe bushings, Akg 85d diff bushings, 4 clutch 3.15 diff, , Poly engine mounts, UUC trans mounts W/ enforcers, 22RPD OBD2 Stock ECU id1700 E85 tune, 22RPD Big power Transmission swap w/ GS6-53
Its worth a try. The balance could be off. A few people have gotten the shaft rebalanced and said it helped. Or it could be something simple like your adapters not being seated perfectly or not being tight enough. Even if all is good, a long 5 speed shaft won't be nearly as smooth at high speed as a stock shaft. The shorter 6 speed shafts are better, and the carbon fiber ones probably the best since CF can absorb a little vibration.
Updates:
Cars been running good.
Giving the sced and nitrous v8 losers the sauce.
Graduated! XD
Got a job in a cardiac icu so I'm stoked
Gonna be making real money so I can have shiny car parts now instead of these hand me downs XD no more building a turbo M3 on a pizza delivery budget
Gonna pick up all the hoes in my new lambo
Lots of winning
BTW
Congrats on your new Senator!!!
Quite a feat.
Congrats on graduating. That’s some real shit
328i Sedan Twin s366's, 6.0LS, TH400, MS3 Ultimate
9.20 at 150 on 22psi
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