Oil Gauge Mod...

[BusyLittleShop]

In a PM I was asked to start a thread regarding my oil gauge Mod...

I started with a $135 compact digital oil pressure gauge p/n P210 from
Auber Instruments with a 0-150 psi or 10 bar range...
http://www.auberins.com/


Installing Auber's senor was complicated because I wanted the to keep
the stock Honda sensor that signaled the red low oil pressure light on
the instrument cluster... I engineered this arrangement which is


Different threads required multiple fittings... I starter with the
hole in the engine which are BSP threads... next came a BSP to NPT
adapter... which allowed a NTP Tee for the NTP Auber sensor... finally
I screwed the BSP Honda sensor into the NPT Tee threads which held but
leaked... so I sealed it up with a custom double O ring washer...

I machined a Double O Ring washer to insure against an oil leak...

It took 5 attempts to come up with the right angles and holes before
the Delrin Clamp Mod worked like I wanted...

The 5th Delrin Clamp was perfect... all in all this mod consumed about
30 days of labor but it was worth it...

Machined Delrin clamp installed to anchor the long and ponderous Auber
sensor to the bike...

Carbon Fiber plate was used to secure the Oil Press Gauge to the
instrument cluster...

 

[Atesz792]

Impressive!

 

[Luciano]

Well done!!

 

[FastGame]

Thanks Larry, this will be the next project on the Concours

 

[BusyLittleShop]

I choose 0W30 because it gives the right flow at the normal operating
temperature of 212ºF of the engine and that would be the viscosity of
10 at operating temps... so that means for every 1000 rpms increase
Mr.RC45's oil pressure increases another 10 psi... a 30w flows more
oil at higher rpms which flows more oil between the critical bearings
which carries away more heat and I'm not wasting HP just pumping oil
through the blow off valve...

0w30 psi
1000 10
2000 20
3000 30
4000 40
5000 50
6000 60
7000 70
8000 80
9000 90
10000 99
11000 99 blow off by the pressure relief valve

0w40
1000 12
2000 24
3000 36
4000 48
5000 72
6000 84
7000 96
8000 99 blow off by the pressure relief valve
9000 99
10000 99
11000 99

15W50 psi
1000 15
2000 30
3000 45
4000 60
5000 75
6000 90
7000 99 blow off by the pressure relief valve
8000 99
9000 99
10000 99
11000 99

Quote Mobil 1 on the viscosity of their synthetic 0 30 weight oil:

Temperature ( F )....Viscosity Flow

212ºF..........................10 (operating)
104ºF..........................56 (start up)
32ºF..........................100 (estimate)

Mr.RC45 Oil Press Gauge shows the problem with oil... it doesn't want
to flow when its cold this is 0w30 at 112º resisting at 18 psi

The same 0w30 at 203F Oil is flowing 10 psi perfect

True to its racing intent Mr.Honda's race bred V4 sports gear driven
cams... so with more gears to shear the oil than your normal
pedestrian street bike I decided to test whether a motorcycle specific
oil produced better numbers than a Passenger Car Motor Oil (PCMO)...
Selected were Asmoil MCT 10w30 and Mobil 1 AFE 0w30... granted the
miles are low but they are miles not in moderation either more like
tracks speeds which simulates the distant my customers cover in a year
of racing or track days... my customers are consummate riders with enough
spare cash to afford to own any exotic homologated racer they desire
from the Golden Years of World Superbikes... namely Honda's RC30
RC45... Yamaha's SP1 R7... Kawaskai ZX7R... Ducati Desmosedici V4
They will ship their prized bikes to the Busy Little Shop for
either my engineered mods or trouble shooting...

You can see the wear and shear slightly favored the M1 but its up to you
whether you want to spend $64.75 OCI @ $12.95 qt for Amsoil or $27 OCI
@ $5.40 qt Mobil 1...

Guided by intellect instead of fear I'm staying with M1 0W30 because
its proving to meet and exceed my mileage expectations... show me an
actual UOA from another bike with gear driven cams with better shear
and wear numbers that cost the same $5.40 a qt as Mobil 1 Auto Oil
I'll think about it...

Mobil 0w30

Amsoil 10w30