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With a fuel consumption of 7.2 litres/100km - 39 mpg UK - 33 mpg US (Average), 0 to 100 km/h (62mph) in 9.3 seconds, a maximum top speed of 121 mph (194 km/h), a curb weight of 2469 lbs (1120 kgs), the Yaris 2 1.8 16v VVT-i TS has a naturally-aspirated Inline 4 cylinder engine, Petrol motor. The 3.6-liter VVT DI is based on GM Powertrain’s sophisticated 60-degree dual overhead cam (DOHC) V-6 engine. Now, this prevents the intake valve, let's just go back to our little cam timing map, we'll go back to our cam timing map on the laptop here, and what we find is that the intake cam actually will be open, the intake valve will be open even after the piston has moved past bottom dead center. Now, one of the questions I quite often get is, what do the numbers in the cam timing maps mean? So this is the technique that we're using, obviously your dyno may not have the torque optimization test, and in reality I'm not using this to optimize every single site in our table, this is just a really great visual way to show us exactly how the cam timing is affecting the engine torque, and it's affecting the engine torque because it's affecting our volumetric efficiency. The engine block is equipped with the forged crankshaft with four main journals, forged connecting rods, and aluminum alloy pistons (resin coating for piston skirts was applied for VVT-i version). So the process however is exactly the same as what we've looked at, your process however is much simpler, because you've only got one table to adjust there. Slide this tool into the hole and make sure it bottoms out. Barry G says, "Seems like so much work, "how do you charge a customer for all that effort? Renault Clio GT 1.6 VVT 128 Review Riyad Emeran | March 6, 2020 10:07 am GMT Like most cars over the past decade or so, the Renault Clio has grown in both size and stature. Remove starter and cap beneath the starter on the side of the engine. Its new generation hi-tech 1.0-litre 3-cylinder petrol Energy Engine generates 52kW with 96Nm torque. Now I'll just get our engine up to about 3,000 rpm, before we do this. Toyota moved to a 5.7 in the new Tundra. Now, we're going to go through the tuning strategy and we're going to have a look at that being applied, after that we will go into some questions and answers so, if you do have anything you'd like me to cover, anything I've talked about that you'd like me to expand on, please ask that in the chat, and then Colin will be able to transfer that through to me at the end. i got 19.x in summer and 17.5 to 18 with winter gas. So this at the moment, we're looking at the inlet camshaft timing table, and you can see the numbers in here vary from, I've actually got negative numbers, a little bit unique for VVT engines and I'll talk about that more shortly, but numbers essentially from about minus 10 through to around about 35 degrees so, again if we were talking about conventional cam spec sheets, an inlet cam, may for example, end up with a cam centerline of 110 or maybe 115 degrees, something like that, so these numbers don't relate to that at all, and this can be confusing, particularly for those people who have dialed in cams, what do the numbers mean, how do we actually utilize these numbers? Now, one point to consider here, is that if you are running in open loop mode, we do need to be a little bit wary of how much our air fuel ratio is moving around. Compression ratio rating is 11.0:1. Now, I mentioned that in most cases the cam timing in the normal or relaxed position, so we're not energizing the cam drive solenoids, will have the intake cam at maximum retard and the exhaust cam at maximum advance, remember this gives us minimal overlap and it gives us that good idle quality. This François Castaing design was the predecessor of the famous EF series.. CH1 (N/A): 1,997 cc Bore 86.0 mm (3.4 in) Stroke 57.3 mm (2.25 in) 285 bhp @ 9,800rpm (1973), 300 bhp @ 10,500rpm (1977) So of course, we've got the piston moves down the bore, it's bringing in a fresh charge of fuel and air, it gets to the bottom of the cylinder, the intake valve is still open, but now the piston's moving back up the bore. Now the MoTeC M1 ECU actually makes this incredible easy for us because the cam timing data, all of the variable valve timing data actually is incorporated in the ref/sync mode so, for us, as an end user, there's a limited amount of work to do. - It's Andre from the High Performance Academy, welcome to today's webinar. So, we don't need to specifically worry too much about the cam centerline values, this is a question I quite often get asked so, how does it relate, what's it all mean? So that's what we're talking about when we have numbers of 35 degrees in the intake cam timing map for example, this is degrees we've advanced the intake cam, so we've actually moved it this way, we've advanced it, so we've got the intake valve opening earlier, and also closing earlier when we advance the cam. I have a megane cc 1.6 vvt, the engine is **** poor and under powered for a car this heavy and guzzles fuel! That being said, let's just have a look here, it's important to understand what is realistic, again, just understanding that this is a mechanical system that isn't able to track instantaneously, so it's something that a lot of tuners forget about, there is a lag, there is a time delay on the camshaft physically being able to rotate. So really, it doesn't matter if we're talking about degrees of cam timing or we're talking about the number of fluffy unicorns in that cam timing map, all we want to do is move in one direction, watch what's happening, and this will help build up a picture of which direction the cams want to move, so it's really important to state that we don't specifically need to know how this relates to the camshaft centerline. Gustavos has asked, `` Seems like so much work, `` making this is. 'Ll save this one and we 'll call it 10 degrees now be found numerous! To 18 with winter gas cam locking tool across the back of the questions I quite often get is what. 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