Cosmosent "Auto Div"

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Auto Divsion / Cosmosent Labs, Inc.

(Text last updated 11 AM, Sun, Aug 18, 2024)

This webpage describes the efforts of our Auto Division, which was established in Aug of 2023.

More specifically, it describes the efforts of our N52+ Cylinder Head Rebuild Service.

As they approach 200K miles, most BMW N52 engines experience Excessive Oil Consumption, primarily because their Valve Stem (Oil) Seals have worn out.

But other than this Oil Consumption Problem, the N52 is an UN-Discovered Gem.

Reliability-wise, we give it an A++ grade.

And that's based-on the 210K miles driven on our (prototype) 2006 BMW E90 325i sedan with 6-speed manual transmission.

And BTW, every BMW N52 engine on the planet is a candidate for what we're pursuing.

i.e., correlates to a potential customer.

Availability & Pricing will be disclosed when officially released.


📌 How our N52+ Strategy stacks up

(Table last updated 10 AM, Sun, Aug 11, 2024)


N52
Engine
Version


HP


Torque


Intake
Manifold


Custom
+0.5 mm
Intake
&
Exhaust Valves

(1)

1-stage


3-stage


328i
Tune


330i
Tune


Custom
Tune


N52+
Level 2


260 HP
at 6250
230 lb-ft
at 2750
-


-


-


✔


✔


N52+
Level 1


245 HP
at 6250
215 lb-ft
at 2750
-


-


-


✔


-


328i

(2)
230 HP
at 6500


200 lb-ft
at 2750


-


✔


-


-


-


2006
330i


255 HP
at 6600


220 lb-ft
at 2750


-


-


✔


-


-


2006
325i


215 HP
at 6250


185 lb-ft
at 2750


✔


-


-


-


-


(1) Requires both a custom Valve Job + a "mild" Port Job.

(2) E90: 2007-2011, E92: 2007-2013

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📌 News Update : 8 PM (La Jolla-time) Monday, Aug 12, 2024

(This is a copy of a relevant News Update)

Two (more) things to announce today:

1.) The Team was out at Windansea Beach today.

It was nice, very nice !

2.) We're continuining to refine the implementation strategy for our N52+.

As a reminder, when we say our N52+, we're really referring to a Rebuilt Cylinder Head.

To reduce oil consumption to a Min:

● Resurfacing of the Head

● (new) +0.3mm Head Gasket

● (new) Valve Stem (Oil) Seals
(by-far the most-important factor)

To improve performance & reliability:

● Multi-Angle Valve Job

● (new) Valves, Valve Springs, Valve Retainers, & Lifters

● (new) Valves Guides ?

The gist of it ALL, as an N52 engine approaches 200K miles, the Valve Stem (Oil) Seals will
normally be worn-out

Resulting in excessive oil consumption.

Replacing them is NON-trivial.

Requires the Cylinder Head to be removed from the engine.

What most don't know is that except for the Oil Consumption Problem,
BMW's N52 is an UN-Discovered Gem !

Reliability-wise we give it an A++ grade.

And BTW, our (prototype) 2006 BMW E90 325i sedan with 6-speed manual transmission is currently 9 miles shy of 210K miles.

It is in dire need of new Valve Stem (Oil) Seals.

But otherwise, runs like a Gem.

Runs like new except for the Oil Consumption Problem.

ALL the necessary Head Work will be done next month.

We'll then have it Dyno Tested.

That will give us our Baseline for moving forward.

And BTW, $5K USD to get the Cylinder Head Rebuilt, another $500 USD for Dyno Testing.

As a reminder, we now devote 1/3 of our Time & Energy to our Auto Division.

We are probably the ONLY Camera App Dev with an Auto Division.

-----


📌 Recent upgrades to our (prototype) 2006 E90 325i Sedan

(6-speed manual + Sport Package + Leather)

(table last updated Fri, Aug 16, 2024)


Date
Cost
Item

Parts
Labor

1/7/23
$721.59

(FCP)
$0
(6) VDO Fuel Injectors

2/11/23
$231.66

(Tirerack)
$217.70

(Midas)
Centric High Carbon Plain 125 Series Rear Rotors + Akebono Rear Pads

5/18/23
$253.21

(Tirerack)
$176.93

(Midas)
Centric High Carbon Plain 125 Series Front Rotors + Akebono Front Pads

5/18/23
$592.63

(Tirerack)
$375

(Trinidad)
Bilstein B6 struts

5/18/23
$321.10

(Tirerack)
$375

(Trinidad)
Bilstein B6 shocks

6/5/23
$312.26

(Wolf's)
$308.00

(Wolf's)
Pass. Front Lock Actuator +
R&R the Manual Transmission Fluid

6/6/23
-
$0

(OB Tire Center)
NO Cost 4-wheel alignment

(paid for by Trinidad)

Front Right Out of Spec !

(0.4 Positive Camber)

6/12/23
$358.79

(FCP)
$500

(Trinidad; 7/24/23)
TRW M3 Control Arm Upgrade Kit

(adds 0.75 Negative Camber)

6/23/23
$141.54

(FCP)
-

(Trinidad; 7/24/23)
OEM Tie Rod Kit

6/27/23
$302.89

(Wolf's)
$420.00

(Wolf's)
Pass. Rear Window Motor +
Trunk Release Switch

6/28/23
$161.63
$675

(Jim's Auto Upholstery)
Upgraded Driver's Seat

(new leather & foam support)

7/24/23
-
$99

(OB Tire Center)
Follow-up 4-wheel alignment

12/28/23
$404

(FCP)
$600

(Trinidad; 12/28/23)
PCV Valve Kit + R&R Oil Filter Housing gasket

1/8/24
$300.00

(Turner)
$550

(Trinidad; 1/8/24)
034 Motorsport
Engine & Trans mount kit

1/28/24
$269

(FCP)
-
(6) ignition coils + (6) NGK 1208 spark plugs

2/20/24
$1,300.00

(FCP)
$1,200

(Trinidad; 2/20/24)
Luk DMFW (22 lbs), Luk Clutch Kit, Shift Rebuild Kit, Rear Main Seal, Tranny front & rear seals

8/16/24
$237.04
$450

(Trinidad; 8/16/24)
R&R Driver's Door Lock Actuator

Total:
$5,670.30
$5,496.63
-

Grand Total:  $11,166.93

-----


M3 Control Arm upgrade kit (TRW)

(1 series M / M3 parts that fit, among others,
non-M 2006-2008 E90 sedans)


Part
OEM
TRW
or
Lemforder
Notes

Front Control Arm - Left
31_10_22_83_57_7
TRW-JTC1426
Lower, wishbone

Front Control Arm - Right
31_10_22_83_57_8
TRW-JTC1427
Lower, wishbone

Front Tension Strut - Left
31_10_22_83_57_5
TRW-JTC1424
Upper, thrust arm

Front Tension Strut - Right
31_10_22_83_57_6
TRW-JTC1425
Upper, thrust arm

Front Tie Rod - Left
32_10_67_65_23_5
LEM-2942101
-

Front Tie Rod - Right
32_10_67_65_23_6
LEM-2942101
-

Rack & Pinnon Bellow Kit
32_10_67_65_23_4
LEM-3363101
-

Control Arm Bolt
31_10_67_63_92_8
-
4x (OE supplier)

Control Arm Nut
31_10_67_67_49_6
-
2x (Genuine BMW)

Self Locking Collar Nut
33_32_67_60_66_8
-
2x (Genuine BMW)

-----