Am I pushing the limit of my turbos?

WoodE30 · 05-27-2019, 11:27 PM

Ok here's my current mod setup:

Fbo, including inlet and outlets, running meth and e30/40 with jb4 and MHD BEF.

So my question is, with all this added power am I causing my engine to be less reliable? Yes I understand more power = more stress but by how much?

hellokitty · 05-27-2019, 11:32 PM

Quote:

Originally Posted by WoodE30

Ok here's my current mod setup:

Fbo, including inlet and outlets, running meth and e30/40 with jb4 and MHD BEF.

So my question is, with all this added power am I causing my engine to be less reliable? Yes I understand more power = more stress but by how much?

Start planning and saving for a single turbo kit lol...

Really depends on how you drive. Are you tracking the car or do you do occasional pulls?

If just occasional pulls, not as much stress provides you warm up the oil properly before doing pulls.

WoodE30 · 05-28-2019, 10:31 AM

Quote:

Originally Posted by hellokitty

Start planning and saving for a single turbo kit lol...

Really depends on how you drive. Are you tracking the car or do you do occasional pulls?

If just occasional pulls, not as much stress provides you warm up the oil properly before doing pulls.

LOL, no plan for single turbo kit.....at least at this point.

No tracking of vehicle, just a pleasure vehicle for the most part.

Thanks for your input Kitty

Jaronbwall · 05-28-2019, 11:16 AM

How many miles have you driven the car with those mods? Are you changing the oil more frequently? If you keep up the maintenance and basically DD the car you should be fine for a long time. I'm a weekend road trip/ daily and about to cross 100k miles. No issues yet!

WoodE30 · 05-28-2019, 11:48 AM

Quote:

Originally Posted by Jaronbwall

How many miles have you driven the car with those mods? Are you changing the oil more frequently? If you keep up the maintenance and basically DD the car you should be fine for a long time. I'm a weekend road trip/ daily and about to cross 100k miles. No issues yet!

Just recently installed the inlets/outlet. Overall with mods maybe 3000-4000 miles. Car has 94k miles, turbos replaced at 77k miles. Yeah, ive been doing oil changes every 5-6000 miles.

Overall car runs great, was just curious what kind of reliability most people are experiencing with modded engines/turbos.

N54Society · 05-28-2019, 11:57 AM

Quote:

Originally Posted by WoodE30

Just recently installed the inlets/outlet. Overall with mods maybe 3000-4000 miles. Car has 94k miles, turbos replaced at 77k miles. Yeah, ive been doing oil changes every 5-6000 miles.

Overall car runs great, was just curious what kind of reliability most people are experiencing with modded engines/turbos.

I don't think you have anything to worry about for a long time based on what you described.

tisdrew · 05-28-2019, 12:07 PM

My stock turbos lasted ~40k tuned above 17psi. YMMV

What psi are you at? I was hitting upwards of 21/22 psi when idgaf anymore.

924er · 05-28-2019, 12:09 PM

I think with your set up you are pushing those snails to their max, but not to say that they can't handle that kind of power.

You got fresh turbos as well, great supporting mods. Plenty ppl pushing similar power for a long time. Reliability depends on how often you push it.

Enjoy it

type-dRew · 05-28-2019, 12:44 PM

They would die with the thing factory stock, may as well enjoy them.

Put some money aside for when they die and drive it.

WoodE30 · 05-28-2019, 01:05 PM

Quote:

Originally Posted by tisdrew

My stock turbos lasted ~40k tuned above 17psi. YMMV

What psi are you at? I was hitting upwards of 21/22 psi when idgaf anymore.

Im boosting anywhere between 15-18 psi. I know i need to check for boost leaks especially after installing the inlet/oulet pipes.

type-dRew · 05-28-2019, 01:13 PM

Quote:

Originally Posted by WoodE30

Im boosting anywhere between 15-18 psi. I know i need to check for boost leaks especially after installing the inlet/oulet pipes.

And also get a tune built for them.

WoodE30 · 05-28-2019, 01:16 PM

Quote:

Originally Posted by type-dRew

And also get a tune built for them.

I was just wondering about that, does MHD have tune for inlets/outlet? I believe im running the E30/40 BEF tune.

type-dRew · 05-28-2019, 02:12 PM

Quote:

Originally Posted by WoodE30

I was just wondering about that, does MHD have tune for inlets/outlet? I believe im running the E30/40 BEF tune.

No they dont, you need a custom tune.

I believe Trebila still makes custom back end flashes

N54rsenal · 05-28-2019, 02:55 PM

The real question here is how much psi and for how many miles can you push a new set of stock turbos for?

With full bolt on and tuned with good maintenance.

riczon.335i · 05-28-2019, 03:05 PM

Quote:

Originally Posted by WoodE30

Quote:

Originally Posted by Jaronbwall

How many miles have you driven the car with those mods? Are you changing the oil more frequently? If you keep up the maintenance and basically DD the car you should be fine for a long time. I'm a weekend road trip/ daily and about to cross 100k miles. No issues yet!

Just recently installed the inlets/outlet. Overall with mods maybe 3000-4000 miles. Car has 94k miles, turbos replaced at 77k miles. Yeah, ive been doing oil changes every 5-6000 miles.

Overall car runs great, was just curious what kind of reliability most people are experiencing with modded engines/turbos.

Don't overthink it I been tuned since 28k now I'm at 114k and the car still pulls like a freight train. I do occasional pulls but never track. Just do proper warm up and keep up with schedule maintenance and you'll be fine. It also helps to save up for new turbos when the time comes you'll be ready, I'm upgrading next year.

Oh yeah also my car never came with an oil cooler never had issues of overheating. Installing CSF radiator helped a lot.

WoodE30 · 05-28-2019, 03:38 PM

Quote:

Originally Posted by riczon.335i

Don't overthink it I been tuned since 28k now I'm at 114k and the car still pulls like a freight train. I do occasional pulls but never track. Just do proper warm up and keep up with schedule maintenance and you'll be fine. It also helps to save up for new turbos when the time comes you'll be ready, I'm upgrading next year.

Oh yeah also my car never came with an oil cooler never had issues of overheating. Installing CSF radiator helped a lot.

Wow, that's impressive. I knew the N54 is stout but its good to hear it first hand. Yeah my car has factory oil cooler. Ill definitely be doing oil changes much more frequent. No harm in having clean oil.

WoodE30 · 05-28-2019, 03:40 PM

Quote:

Originally Posted by N54rsenal

The real question here is how much psi and for how many miles can you push a new set of stock turbos for?

With full bolt on and tuned with good maintenance.

Good question. I'm good with only boosting 18 psi max. Id rather be conservative than maxing the stock turbos.

05-27-2019, 11:27 PM	#1
WoodE30 Capt. Maverick 62 Rep 295 Posts Drives: 89 E30 325is, E92 335i N54 Join Date: May 2018 Location: Los Angeles iTrader: (0) Garage List 2013 X5 3.5xdrive [0.00] 1989 325is [0.00] 2008 335I coupe [0.00]	Am I pushing the limit of my turbos? Ok here's my current mod setup: Fbo, including inlet and outlets, running meth and e30/40 with jb4 and MHD BEF. So my question is, with all this added power am I causing my engine to be less reliable? Yes I understand more power = more stress but by how much?
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05-28-2019, 11:16 AM	#4
Jaronbwall Driving cars and riding bikes really fast 296 Rep 1,023 Posts Drives: 2009 335i Join Date: Sep 2014 Location: Indianapolis iTrader: (0)	How many miles have you driven the car with those mods? Are you changing the oil more frequently? If you keep up the maintenance and basically DD the car you should be fine for a long time. I'm a weekend road trip/ daily and about to cross 100k miles. No issues yet! __________________ 335i, sport pkg, 3 pedals, Blacked out, LED markers, OZ Ultraleggera wheels, Firestone Indy 500s, x-pipe, vibrant 1792, PE mod MHD stage 2+, BMS DPs, ARM charge pipe, Tial BOV, ARM FMIC, dual cone, CSF radiator, M3 control arms, sways, HAWK pads. https://www.strava.com/athletes/8309149 Follow me on Strava
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05-28-2019, 12:07 PM	#7
tisdrew First Lieutenant 98 Rep 300 Posts Drives: 2009 335i Join Date: Dec 2015 Location: Melbourne, FL iTrader: (0)	My stock turbos lasted ~40k tuned above 17psi. YMMV What psi are you at? I was hitting upwards of 21/22 psi when idgaf anymore. __________________ "Wheels and exhaust aren't a build"
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05-28-2019, 12:09 PM	#8
924er Colonel 351 Rep 2,049 Posts Drives: e92 335i '10 Join Date: Feb 2014 Location: Socal iTrader: (0)	I think with your set up you are pushing those snails to their max, but not to say that they can't handle that kind of power. You got fresh turbos as well, great supporting mods. Plenty ppl pushing similar power for a long time. Reliability depends on how often you push it. Enjoy it __________________ '10 e92 N54 DCI intakes, ER chargepipe, TIAL BOV, VRSF 5in FMIC, BMS Downpipes COBB e30
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05-28-2019, 12:44 PM	#9
type-dRew Major 642 Rep 1,245 Posts Drives: 2009 335i xDrive Join Date: Feb 2019 Location: Newport MI iTrader: (0)	They would die with the thing factory stock, may as well enjoy them. Put some money aside for when they die and drive it. __________________ 2009 335i xDrive AT / 177k+ miles PSP 750ic / Fuel-It! Stage 1 / BMS CP / Sutphin Tuning / RFP E50 11.61 @ 117.5 New setup; Covid 19Ts on RFP 93 + ARM inlets, dp, VTT cp and PSP outlets
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05-28-2019, 02:55 PM	#14
N54rsenal Enlisted Member 6 Rep 36 Posts Drives: 2010 335i M Sport LCI Join Date: Oct 2018 Location: Chicago iTrader: (0)	The real question here is how much psi and for how many miles can you push a new set of stock turbos for? With full bolt on and tuned with good maintenance. Last edited by N54rsenal; 05-28-2019 at 03:10 PM..
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