rxrider's Turbo Garage - pics back, will continue

[Tarzan]

They have figured that the Viper/Nytro engine creates enough vacuum to skip the trociod pump they used earlier. Many Nytro guys have already deleted the pump in their rear Mount Nytros.

What is the trociod pump?

 

[rxrider]

They have figured that the Viper/Nytro engine creates enough vacuum to skip the trociod pump they used earlier. Many Nytro guys have already deleted the pump in their rear Mount Nytros.

What is the trociod pump?

It is a very simple pump With only a few moving parts, very durable and hardly ever fail.
You have two of them inside Your engines oil pump.
The Apex and RX-1 kits use them.

The pump housing is circular in shape on the inside.
It contains two 5 tooth star shaped pump gears, one is slightly larger than the other one.
One of the gears is mounted on a shaft driving it. The shaft is slightly off center.
This creates an irregular circular motion that is forcing the smaller pump gear around thus pushing the oil from the oil inlet to the oil outlet.
The design is very simple but very cleverly thought out, it Works, and as I said it's very durable.
Only part known to fail on the MCX Version is the shaft cross pin that Connects to the bolt on the crank shaft.
Never heard of any pump ever to fail.

 

[rxrider]

Update - January 23. - SR Viper MCX270 Turbo Kit Install - Installing MCX BlueTooth box, adding fuel, coolant and oil, first startup.


Installed MCX BlueTooth Box.
This Box Connects to Your Android Cell Phone, running an App as the logging software.
With the Box you are able both to log data from Your sled and to program the MCX EFI Box, all from Your Cell Phone.

Filled up With more Premium gasoline.
Filled up coolant until the system was full, then added coolant into the coolant overflow tank to the Cold Level marker.

Added oil until the oil was half way in the inspection eye on the oil tank.

Before startup I loosened the banjo screw to check for oil flow, to Ensure that the oil pump is working properly.

When installing the Hood I found that the Hood was touching the IC on the left hand side of the InterCooler.

The Hood had to be cut like shown in the pic below.

Started up the sled and checked for oil flow at the turbo oil outlet banjo. Oil flowed, all is well.
Ran the sled for a few minutes checking for leaks. No leaks spotted.

Had a PO118 error code at the dash, the manual said the cause was missing input from the coolant temp sensor.
Found the plug not installed, put it in and the code went away.

NOW IS THE TIME TO INSTALL THE HEAT SHIELD TO THE TURBO AND EXHAUST MUFFLER.

Ran the sled for another 10 minutes until the radiator fan started to run. All coolant hoses was hot to the touch and coolant circulated perfectly thru the system. When the sled had cooled Down again I checked oil and coolant once more, no more oil or coolant had to be added.

I am taking the sled out for a test ride tomorrow. I'll leave the side covers off until the first test ride is done.

Nice sled

Changed the clutch weights With MCX clutch weights delivered With the kit.
Installed the clutch Shield, secondary and primary clutch.
The bolt holding the primary was torked to 120Nm to set the primary on the cone, then loosened and retorked to 60Nm. The bolt holding the secondary was torked to 40Nm.

Initial testride is done. Checked for leak after the ride, none spotted.
Last work is intalling the two side covers.
I may have to work on the clutches later on. I assume the sled hit the revlimiter as it misfired when it lost tracktion giving it WOT for a second, happened a few times.

 

[cannondale27]

Wow! I never knew all the work you have posted. I am going to be spending days looking through this. THANK YOU!

 

[rxrider]

Thanks cannondale27 - comments like that is my motivation for posting

The sled is done by now. My plan was to test ride it today but we have -23C and gail force Winds, effective temp is -41C, too Cold to ride today.

 

[Tarzan]

Thanks cannondale27 - comments like that is my motivation for posting

The sled is done by now. My plan was to test ride it today but we have -23C and gail force Winds, effective temp is -41C, too Cold to ride today.

Keep up the good work and keep posting.

 

[TT]

Nice work buddy! I love coming back to your thread - thanks for taking the time to share with the rest of us - I now it is time consuming with all the photos and text.

Good you saw the metal shavings - not good! I would relocate that fuel box - moisture will collect in the vacuum line to the MAP sensor over time. See if it is possible to so the vacuum line has gravity all the way from the MAP-sensor.

Keep up the good work!

 

[rxrider]

Thanks TT - I'll look into the MCX EFI Box, but there is not may alternatives as the wireing is limiting how far it can be moved.

The engine is sitting a lot higher in the Viper chassis than in the Nytro chassis and a good 15 cm higher than in the RX-1/Apex chassis.

 

[rxrider]

Update - January 26. - SR Viper MCX270 Turbo Kit Install - First testride done. Found a minor coolant leak. Fixed. Sled is done and ready for a shake down.


I had no leak right after the initial testride.
This small leak was found the NeXT day.
Typical for minor leaks, they show up when the sled has cooled Down.

The coolant seeped out at the bottom of the sled on the right hand side, rear of the tunnel heat exchanger, making it hard to determie where the initial leak was to be found.

I assumed a hose clamp was not tightened enough and started looking for the origin of the leak.
I checked all the major hoses. No leaks to be found.

Then I went to check the smaller coolant hoses to the fuel rail, and from the thermostat housing to the overflow tank, and from the overflow tank outlet line. NOTHING..... ????? what a F......

The NeXT Place to look was the small pipe going from the tunnel heat exchanger to the thermostat housing.
Needless to say it's a bit of work getting to that line, it's rear of the engine.

No leaks at the rear of the engine either, now this was getting weird and it had me puzzled.
There was only one Place left to look, and in a Place you cannot get to without the removal of turbo and muffler.
I had no choise and off the turbo and muffer went. Now I could get to the Connection shown in the pic below.
I could not spot any leak by looking at this connection eigher but after putting my fingers underneat the Connection I found the Place of origin for the leak.
The leak was very minor, it seeped out only one drop of coolant every few minutes, that made it very hard to tell where the leak came from.

Well here's the hose clamp that caused my problem.
The clamp was tightened but not tight enough apparently.
I tightened it up a lot more. And left for supper.

A few hours later I went out to check, no more coolant anywhere.
I had cleaned up every drop of coolant everywhere to be able to spot any leakage, but none were to be found.
Installed the turbo and muffler. Then I installed the fuel tank and plastics.

The sled is done and ready for the shake Down ride.

I assume clutching will be needed as I hit the rev limiter on the first short testride.
I have installed the MCX Clutch weights, they have the same curve and weight as the SuperTips 60Y weights loaded for my turbo sled. The MCX weights come in at 85.67 grams, my old ST turbo weights come in at 85.81 grams.
The SR Viper has a straight 43 degree Helix, which will be too shallow intial angle.
I believe a 51/43 helix will work better keeping it off the rev limiter.

When the ride is done I will comment on the clutching.




Made a modification to the Hood. Gone are the crazy fine threaded screws and Clips.
Installed Yamaha Clips and Yamaha philips screws.


AC Clip to the left, Yamaha Clip to the right.

Yamaha Clip installed to the Hood.

This hole in the side covers had to be drilled out to 10 mm to fit the Yamaha philips screws.

This mod made the Hood install a Whole lot easier.


I have downloaded the Shadow Dash MS from Google Play and installed it on my Samsung Galaxy S3 phone.
The MCX Bluetooth Box flashed green, I turned on Bluetooth on my phone and started the Shadow Dash MS App.
The App asked me to scan for compatible units and found the MCX Bluetooth Box. Would not Connect.
Turned off the ignition on the sled and Restartet the phone.
Turned everything back on and the MCX Bluetooth Box was recognized and Connection established.
After a while an update was automatically downloaded the my Wireless network an installed, it expanded the capabilities of the Shadow Dash MS App. Now I had full Control over everything in a Dashboard like view on my phone.
Fired up the sled and pressed Start Log

 

[rxrider]

I've run out of bandwidth on my Photobucket account.

The bandwidth counter will reset on February 11th - the pics will then reappear.

The monthly 10 GB limit has been exceeded.
I run a free account, have to decided on upgrading the account to a Professional account.
Will cost me Money :-(

 

[le700]

How did that clutching work out? Have you tested any more?

 

[rxrider]

My turbo sled?
Have not ridden it yet this season.
Plan was to ride it this weekend but the battery failed on me. Sled started but died after 15 Seconds at idle, tried to start it up again but no Power left in the battery.
The battery had been on charge from the day before. Got hold of a New Excide YT14BS.
Spent 4 hours in the garage replacing the Yuasa YT10BS. With all my customization it was a pain to get it done, but now it is

 

[le700]

Okay thanks.
I was actually thinking about the viper and the helix issues / hitting the rev limiter..

(..because it might relate to my sled, as it also did that last season. I may have to upgrade from a straight 45 to either a straight 47 or a multi cut helix, so I'm interested in that topic..)

Hope you get to use your own sled also, and not only work on others..

 

[rxrider]

The multiangle is the way to og to get it off the rev limiter. When the straight helix is steep enough to keep it off the initial over rev situation it's too steep for high speed clutch ratio and belt starts to slip badly in the secondary.

I run a 56/46 to have it work in both ends low to high clutch ratio.

 

[gsxr]

Have you had a chance to shake down the 270 Viper yet , I am waiting your answers before ordering a new Viper and Mcx 270 for spring build.