5 Jan 2017

Racedynamics Dieseltronic Tuning Box

A week ago I  got a call from Racedynamics with the good news that they have released a tuning box for the new Innova with 1GD-FTV engine. About time I thought as I have been waiting for the same ever since I bought the new Innova. Racedynamics dispatched the Dieseltronic box to their local dealer in my city and the installation was done and then trial was taken and payment was made.


The Dieseltronic box offers 4 modes of operation - P1 for Medium Performance, P2 for Hi Performance, E for Economy and S for Stock ECU. In E mode the engine feels sluggish and apparently that return better fuel economy but I would not know as I have not used it. S mode is stock mode which means stock values are applied. P1 mode is fun and the vehicle is fun to drive. I can't say the same for P2 mode as the engine sounds rough and it does not feel much more powerful than P1 mode, maybe P2 mode needs more development by the manufacturer to get it right.

Dieseltronic in the engine bay connected to rail pressure sensor and MAP sensor.

A clip with the Dieseltronic box installed. Max speed recorded in GPS was 183KpH. The needle on the speedometer at that time was close to 200KpH.

Briefly this is how a tuning box works

A tuning box modifies the stock fueling and boost parameters resulting in increased output from the engine. It sits between sensors (Rail Pressure and MAP sensor, in this case) and ECU interpreting the signals from the sensors and feeds modified signals to the ECU. The ECU, based on the modified signals, increase rail pressure and requested boost pressure. By doing that the engine gets more fuel and air which results in more torque and power. This is sort of fooling the ECU with false values. Although not a technically correct way to make more power tuning boxes have their firm hold in Diesel tuning they do make power and they are here to stay as they have certain advantages over remaps.

Which one is better for max power? Remap or Tuning box?

While remaps are generally good compared to single channel tuning boxes, a dual channel tuning box can hold its ground in power and torque figures compared to a simple remap. But a tuning box that tricks the ECU has limitations when going up the power ladder and soon the ECU will pop the CEL!

To climb up the power ladder we need another breed of tuning boxes and some of the most powerful Toyotas out there are running on piggybacks (they are sort of like tuning boxes but do it differently 😉) and are not running remaps. So yes, big power is possible with a box. I may have to get another box really.

Update!

I have since upgraded from a tuning box to a proper piggy back ECU for the the Innova. Please read about it here: Dastek Unchip 1GD-FTV (Innova Crysta)
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Tip: 2 Stroke Oil with Diesel

As the title says this is about adding 2 stroke oil or 2T oil in Diesel when you fill up. There are two camps when it comes to discussions about 2 stroke oil in Diesel; one camp says "No" to this and the other says "Yes". I belong to the latter, the "Yes" camp and that is why this article is here.

There are various many forum threads and posts about the subject and if you will google "2 stroke oil in diesel" it will yield you a ton of links. And if you would pore over those posts you would find that about fifty percent subscribe to this idea and the other fifty in opposition. After reading reading reading on this subject it is you who should decide whether to try it or not and form an opinion about it.

I did the reading reading reading part and tried this in two engines and found it was actually running a bit smoother and more silent with the Diesel 2SO cocktail in the tank. I tried this around 2 years ago in the Suzuki Swift with Diesel which i had then and now I have used it in the Toyota with the same positive results.

When I bought the Toyota I was sitting on the fence having trouble deciding whether to try it or not as the vehicle was new, even though the experience was positive in the Swift. But then I came across this snippet of useful information from Baileys Diesel a reputed company, and it really did help me take the decision again. Link: The Truth About Adding Two-Stroke Oil To Diesel In Modern Common Rail Engines You should go through the comments too.

In case the link above is not available:

DLC or Diamond Like Coating (Src: Link)

Baileys Diesel Group (Src: Link)

2SO In Toyota

The Baileys recommended dosage of low ash mineral 2 stroke oil is 3ml for 1 litre of Diesel. Innova's fuel tank capacity is 55 litres (which is kind of small for an MPV) and so I should be putting 165ml of 2T for every tankful. But I have 200ml polypropylene bottles here with me and for ease of use I decided to use those bottles and put 200ml oil during every fill up which is 3.6ml for every litre of Diesel. 0.6ml increase over the recommended dosage should not be an issue really.

I use either Shell Advance VSX 2T or Servo 2T Supreme as per availability or mix them both. Shell Advance VSX is said to be a "synthetic blend" which I highly doubt because both are cheap and priced similarly. Both are JASO FC oils.



2T oil ready to be dumped in 200ml polypropylene bottles. The bottle on extreme right has Shell 2T in it and the one next to it has Servo 2T in it. The other three bottles have an equal mix of Shell 2T and Servo 2T and they are lighter green in shade and they stay mixed without any layering.

Amsoil blog on this subject.  They say its OK but not recommended and that makes sense because they have their own diesel tonic which probably costs more than a bottle of 2SO.


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4 Jan 2017

Tip: LiquiMoly MoS2 in Rear Differential

MoS2 or Molybdenum Disulphide

Wikipedia:
"Molybdenum disulfide is the inorganic compound composed of only two elements: molybdenum and sulfur. Its chemical formula is MoS2.

The compound is classified as a metal dichalcogenide. It is a silvery black solid that occurs as the mineral molybdenite, the principal ore for molybdenum. MoS2 is relatively unreactive. It is unaffected by dilute acids and oxygen. In appearance and feel, molybdenum disulfide is similar to graphite. It is widely used as a solid lubricant because of its low friction properties and robustness."

"MoS2 with particle sizes in the range of 1–100 µm is a common dry lubricant. Few alternatives exist that confer high lubricity and stability at up to 350 °C in oxidizing environments. Sliding friction tests of MoS2 using a pin on disc tester at low loads (0.1–2 N) give friction coefficient values of <0.1.

MoS2 is often a component of blends and composites that require low friction. A variety of oils and greases are used, because they retain their lubricity even in cases of almost complete oil loss, thus finding a use in critical applications such as aircraft engines.
"

Liqui-Moly Gear-Oil Additive


There are certain oil additive manufacturers who are using MoS2 in their formulation to claim superior lubrication in certain applications where it will not cause a concern. Liqui-Moly is one such manufacturer and they even have it on their name.

Among numerous additive manufacturers Liqui-Moly is one company which has built a loyal user base and they have earned the trust from enthusiasts who generally dismiss most oil additives as "Snake Oil".

To quote from their product page:

"The MoS2 additive creates a heavy-duty lubricant film on all frictioning (sic) and sliding metal surfaces. It reduces friction, wear and decreases temperature peaks. The result is a smoother run, softer shifting and a nearly wear-free running-in in gear wheels, friction couples and tribological pairings. Reliability and anti-friction properties are significantly increased."

All that sounds good! Does it work?

A presentation of the study done on nano particle based lubricant additive can be found here, the results are promising. The project report of the same can be found here .

Adding it in Toyota

After reading and more reading on this subject I have added this to the rear differential of my Toyota. Its easy to do it yourself if you want to. No point in paying a workshop to do this for you.
I will update the findings on this page after I log some miles and I believe it will be positive going by my previous experience using Liquimoly additive (Ceratec) in the engine oil.

Adding Liquimoly Gearbox Oil Additive in the rear differential (open diff). Use size 24 spanner to open the oil filler bolt.








Note: This additive should NOT be used in limited slip differentials, automatic transmissions and in wet clutches.
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3 Jan 2017

About this blog & My 2016 Toyota Innova Crysta

About this blog
This is my wall on the Internet where I note down things related to my Toyota. Instead of posting it on a forum and lose my rights on what I wrote it is better that I keep it with myself. Lack of viewership is ok, nothing to prove.

So why Toyota?
After owning other brands in the past now it was time for me to move to Toyota. As an enthusiast friends consider Toyota should never be included in my new car purchase options list, because Toyota makes unexciting cars here in our country. There is some truth in it and for enthusiasts there are better cars available in the same price bracket.
  1. Reliability 
  2. Servicing Costs 
  3. Long term ownership expenses 
  4. Resale value 
  5. Toyota's competitors did not have what I want - a powerful diesel automatic MPV. 
Which Toyota?
The Innova Crysta automatic with 1GD-FTV 2800cc common rail diesel engine with variable geometry turbocharger outputting 174PS power and 360NM torque.

Taking delivery of our Innova Crysta from Nippon Toyota at Enjakkal, Trivandrum. Dealing with Nippon Toyota has been a pleasure.


The Engine - 1GD-FTV

The Intercooler
The previous 1KD-FTV had a much smaller top mounted intercooler. This one is much larger compared to that.

The Battery

Engine Specifications:
  • Engine Designation: 1GD-FTV
  • Displacement (cm3): 2755
  • Bore x Stroke (mm): 92.0 x 103.6
  • Compression ratio: 15.6
  • BHP: 177@3400RPM
  • Torque (NM): 450 @ 1600-2400RPM
  • Low Speed Torque (NM): 360@1200RPM
1GDFTV is part of the new GD series engine family which was launched as a replacement for the ageing KD series Diesel engines and powers a variety of Toyota's body on frame vehicles such as Innova/Kijang, Fortuner, Hilux and LC Prado. The Prado's version of this engine gets a balance shaft to iron out the vibrations and to improve on noise vibration and harshness (NVH). The rest of the lot, Fortuner, Hilux and Innova, gets a non-balancer shaft equipped variant of this engine.This new GD series engine gets a water cooled turbo charger which is a first for this segment in India. It should help against coking of oil in the turbocharger CHRA and increase durability of the engine.

Emission control system
Depending on the market:
  1. EGR - Euro 2
  2. EGR+DOC - Euro 4
  3. EGR+DOC+DPF - Euro 5
  4. EGR+DOC+DPF+SCR - Euro 6
In India we get the second option; EGR and Diesel Oxidation Catalyst.
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