Pure Turbos N55 single turbo upgrade

1cleann55 · 09-25-2014, 10:11 PM

Great numbers but i always wasnt a fan of dynapack. Does are the ones that attach to the hub of wheel correct? They read higher than dyno jets.

iuhutch · 09-25-2014, 10:32 PM

I would think that the hub connection would be most accurate? That's what Dinan uses...although I can see how against the wheels would be more life like results

deemarr 335i · 09-25-2014, 11:01 PM

Nice numbers I need to hit a dyno asap

Newguy123 · 09-26-2014, 01:06 AM

Thanks for the data

will come in handy

hetzle · 09-26-2014, 01:13 PM

OP has been updated with new dyno results, keep them coming guys!

JETmn · 09-29-2014, 11:46 AM

Not sure if it is just my car being a 335Xi auto or not, but I physically cannot fit my hand down where I need to for removal of the turbo coolant pipe. I have cuts on my arm where I tried, but I can just barely get to the top bolt and no chance of getting to the other 2. I am not a real small guy, so make sure you have a buddy with smaller arms come help you

loesch · 09-29-2014, 12:15 PM

Quote:

Originally Posted by hetzle

OP has been updated with new dyno results, keep them coming guys!

I'm trying real hard to get a dyno run in before it shows here. Had some set backs but I'm getting work done at the dealer next Tuesday. After that I'm getting the BMS flash on and then scheduling a dyno run. Ill have a good comparison too as I dyno'ed car car with the same mods minus the turbo and flash.

loesch · 09-29-2014, 12:16 PM

Quote:

Originally Posted by JETmn

Not sure if it is just my car being a 335Xi auto or not, but I physically cannot fit my hand down where I need to for removal of the turbo coolant pipe. I have cuts on my arm where I tried, but I can just barely get to the top bolt and no chance of getting to the other 2. I am not a real small guy, so make sure you have a buddy with smaller arms come help you

I can't remember but I may gotten that from the bottom after the thermostat and water pump were out. Would that be easier?

Wait, that's not the aluminium one is it? The one that sneaks behind the wastegate rod? That one doesn't come out.

JETmn · 09-29-2014, 12:50 PM

Quote:

Originally Posted by loesch

I can't remember but I may gotten that from the bottom after the thermostat and water pump were out. Would that be easier?

Wait, that's not the aluminium one is it? The one that sneaks behind the wastegate rod? That one doesn't come out.

It is the big aluminum one (1.25" diameter?) that goes in front of the turbo and attaches between the fire wall and the turbo. I am not sure you could get the turbo out if that is not removed, but possibly you could.

loesch · 09-29-2014, 01:31 PM

Quote:

Originally Posted by JETmn

It is the big aluminum one (1.25" diameter?) that goes in front of the turbo and attaches between the fire wall and the turbo. I am not sure you could get the turbo out if that is not removed, but possibly you could.

This one? If so, that doesn't get removed. It would be easier if it was out but it would take longer to take it out than the time it would save being out.

hetzle · 09-29-2014, 03:47 PM

Quote:

Originally Posted by loesch

I'm trying real hard to get a dyno run in before it shows here. Had some set backs but I'm getting work done at the dealer next Tuesday. After that I'm getting the BMS flash on and then scheduling a dyno run. Ill have a good comparison too as I dyno'ed car car with the same mods minus the turbo and flash.

Nice post it here and I'll move it up to the OP

Newguy123 · 09-29-2014, 04:09 PM

Quote:

Originally Posted by hetzle

Nice post it here and I'll move it up to the OP

theres a dyno day at EAS this saturday $75 for 3 pulls open to any BMW...so i will have a sheet to add as well

JETmn · 09-29-2014, 04:36 PM

Quote:

Originally Posted by loesch

This one? If so, that doesn't get removed. It would be easier if it was out but it would take longer to take it out than the time it would save being out.

That is the guy, thanks! I'll proceed without taking that off.

iuhutch · 09-30-2014, 07:24 PM

Quote:

Originally Posted by loesch

This one? If so, that doesn't get removed. It would be easier if it was out but it would take longer to take it out than the time it would save being out.

Meh - with it still installed how did you get the wastegate shaft loose? I agree, I got mine out but also do not have an xdrive. For my experience installing pure on a different 335xi, xi is much tighter and saves the time struggling to get a tool inside of it to remove the wastegate shaft from the housing...

loesch · 09-30-2014, 07:58 PM

Quote:

Originally Posted by iuhutch

Meh - with it still installed how did you get the wastegate shaft loose? I agree, I got mine out but also do not have an xdrive. For my experience installing pure on a different 335xi, xi is much tighter and saves the time struggling to get a tool inside of it to remove the wastegate shaft from the housing...

That second bolt on the wastegate shaft was the worst part of the whole install imo. Both when removing and putting it back in. I sat the turbo on the cross member when I did mine while making sure not to bump the wheel.

iuhutch · 09-30-2014, 08:02 PM

Quote:

Originally Posted by loesch

That second bolt on the wastegate shaft was the worst part of the whole install imo. Both when removing and putting it back in. I sat the turbo on the cross member when I did mine while making sure not to bump the wheel.

The hardest part for me was getting the damn turbo out around the engine and that big ass timing tensioner bolt! We did remove it on both other cars I helped with and seemed to be worth the time. It's just 3 bolts up at the top of the lower engine side...

loesch · 09-30-2014, 08:40 PM

Oh ok. I looked at where the bolts were located and decided there was no way. Haha

bmw_fanatic · 10-01-2014, 02:18 PM

For those with Pure Turbo Stage 1 installed, does anyone felt the turbo lag on street driving has changed compare to stock turbo?

I have see a few dyno graphs and the tq curve seems to be more or less similar to stock vs pure turbo stage 1 in 1500-2500rpm but of course with the pure turbo upgrade the tq just continue to climb, it doesn't tell me how it will feel like compare to the stock.

Pure Turbos · 10-01-2014, 02:29 PM

Quote:

Originally Posted by bmw_fanatic

For those with Pure Turbo Stage 1 installed, does anyone felt the turbo lag on street driving has changed compare to stock turbo?

I have see a few dyno graphs and the tq curve seems to be more or less similar to stock vs pure turbo stage 1 in 1500-2500rpm but of course with the pure turbo upgrade the tq just continue to climb, it doesn't tell me how it will feel like compare to the stock.

It spools almost identical to the stock turbo. Most customers can't feel any spool time difference.

loesch · 10-01-2014, 02:41 PM

Quote:

Originally Posted by bmw_fanatic

For those with Pure Turbo Stage 1 installed, does anyone felt the turbo lag on street driving has changed compare to stock turbo?

I have see a few dyno graphs and the tq curve seems to be more or less similar to stock vs pure turbo stage 1 in 1500-2500rpm but of course with the pure turbo upgrade the tq just continue to climb, it doesn't tell me how it will feel like compare to the stock.

I didn't notice any additional lag at all. I was surprised.

PeterPure · 10-01-2014, 03:03 PM

Couldnt feel any difference in lag either. But who drives the car wot between 1500 and 2500 rpm?

bmw_fanatic · 10-02-2014, 03:16 AM

Thanks for the feedback guys, well it's good to know spool time is about the same as stock. I am more curious is in situation of partial throttle in the the lower range of rpm.

09-25-2014, 10:11 PM	#1585
1cleann55 First Lieutenant 46 Rep 394 Posts Drives: 2011 335i Join Date: Apr 2014 Location: New jersey iTrader: (0)	Great numbers but i always wasnt a fan of dynapack. Does are the ones that attach to the hub of wheel correct? They read higher than dyno jets.
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09-25-2014, 10:32 PM	#1586
iuhutch Captain 118 Rep 656 Posts Drives: 18%E2%80%99 F80 ZCP Join Date: May 2013 Location: local iTrader: (0)	I would think that the hub connection would be most accurate? That's what Dinan uses...although I can see how against the wheels would be more life like results
	Appreciate 0 Quote

09-25-2014, 11:01 PM	#1587
deemarr 335i Lieutenant 34 Rep 410 Posts Drives: e90 335i performance edition Join Date: Jan 2012 Location: westchester ny iTrader: (2)	Nice numbers I need to hit a dyno asap
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09-26-2014, 01:06 AM	#1588
Newguy123 Captain 123 Rep 652 Posts Drives: 2008 Nissan Titan Join Date: May 2014 Location: Carlsbad iTrader: (0)	Thanks for the data will come in handy __________________ 2012 DCT 135i PURE S2 JB4/mhd Fuel-It! direct port meth injection check out my youtube channel here
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09-26-2014, 01:13 PM	#1589
hetzle First Lieutenant 34 Rep 373 Posts Drives: E90 335i Join Date: Dec 2011 Location: San Francisco, California iTrader: (0)	OP has been updated with new dyno results, keep them coming guys! __________________ 2011 335i sedan 6MT, 515whp/530wtq. Pure Turbo Stage 2, Motiv SST TwinDisk Clutch/FW, Motiv Flash, AA 4" DP, ER FMIC, AA turbo-back exhaust, Quaife LSD, ST Coilovers, BMS Intake, UUC DSSR+SSK, ER CP, BMS CDV, BMS OCC, Arkym CF trunk
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09-29-2014, 11:46 AM	#1590
JETmn Lieutenant Colonel 247 Rep 1,595 Posts Drives: 2011 335i xDrive Msport Join Date: Apr 2013 Location: Orlando iTrader: (0) Garage List 2011 335Xi [0.00]	Not sure if it is just my car being a 335Xi auto or not, but I physically cannot fit my hand down where I need to for removal of the turbo coolant pipe. I have cuts on my arm where I tried, but I can just barely get to the top bolt and no chance of getting to the other 2. I am not a real small guy, so make sure you have a buddy with smaller arms come help you
	Appreciate 0 Quote

09-30-2014, 08:40 PM	#1601
loesch Captain 134 Rep 917 Posts Drives: 2011 BMW 135i M Sport Join Date: Feb 2012 Location: State College, PA iTrader: (4)	Oh ok. I looked at where the bolts were located and decided there was no way. Haha
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10-01-2014, 02:18 PM	#1602
bmw_fanatic Private 7 Rep 75 Posts Drives: f30 328 Join Date: Jul 2010 Location: Canada/Taiwan iTrader: (0)	For those with Pure Turbo Stage 1 installed, does anyone felt the turbo lag on street driving has changed compare to stock turbo? I have see a few dyno graphs and the tq curve seems to be more or less similar to stock vs pure turbo stage 1 in 1500-2500rpm but of course with the pure turbo upgrade the tq just continue to climb, it doesn't tell me how it will feel like compare to the stock.
	Appreciate 0 Quote

10-01-2014, 03:03 PM	#1605
PeterPure Major 677 Rep 1,349 Posts Drives: BMW F80 M3 Join Date: Jun 2008 Location: Belgium iTrader: (0) Garage List 2017 BMW F80 M3 [0.00]	Couldnt feel any difference in lag either. But who drives the car wot between 1500 and 2500 rpm?
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10-02-2014, 03:16 AM	#1606
bmw_fanatic Private 7 Rep 75 Posts Drives: f30 328 Join Date: Jul 2010 Location: Canada/Taiwan iTrader: (0)	Thanks for the feedback guys, well it's good to know spool time is about the same as stock. I am more curious is in situation of partial throttle in the the lower range of rpm.
	Appreciate 0 Quote