How it's Made : The Mitsubishi EVO Edition




The first thing we noticed when getting these two together was the sheer size difference. The 2015 car is 183mm wider, 250mm longer, and 26mm taller. This is part of the reason it’s also a lot heavier: the EP3 tips the scales at just 1204kg, compared to 1382kg for the FK2. But, it’s worth bearing in mind that a bigger body gives you a hell of a lot more interior space, plus 200 litres more boot room. The EP3 feels cramped in comparison.
“In terms of straight line performance, the 2015 car well and truly trumps the old one, despite the hefty weight disadvantage”






These 304 Stainless Steel weld els fittings are used for exhaust manifold fabrication. The best components you can use to create an equal length turbo manifold. Made of 304 stainless steel and carry a lifetime warranty! Made in India, the stainless steel capital of the world, these fittings follow strict ASTM standards, set forth by manufactures all over the globe! Each fitting is stamped with the size, lot #, and "ASTM A 403 WPW 304" These same weld els are used by the top turbo manifold manufactures across the nation, the best components you can use to fabricate exhaust turbo manifolds.
We have them in schedule' 5, 10, 40 and either polished or casted. When it comes to the efficiency of your turbocharging needs, Treadstone heeds the demand for a superior product.
DETROIT -- Tougher fuel economy and emissions standards won't mean the death of Fiat Chrysler's V-8 engine lineup, CEO Sergio Marchionne says.
But in an interview with�Automotive News�last month, Marchionne conceded that it is getting harder for FCA to stay in compliance with the federal corporate average fuel economy rules. For now, he said, the key for keeping powerful engines in FCA's lineup is the purchase of clean air credits.
"One of the things that we learned to do is how to buy stuff," Marchionne said. "We buy credits. ... The purchase and sale of credits is actually more efficient than capital today."
FCA lags behind every other mass-market automaker in fleet fuel economy and emissions. According to the EPA, FCA was the industry's largest purchaser of emissions credits for the 2013 model year, the most recent year for which figures are available. FCA purchased most of its credits from Tesla Motors.
Under EPA rules, the credits serve as a form of currency. Automakers can offset their carbon footprint with emission credits earned by the sale of other vehicles.
While other automakers have used strategies such as turbocharging smaller displacement engines or direct injection to achieve fuel economy gains, FCA has chosen to increase the horsepower of existing engines.
Recently, speculation on the FCA-centric site Allpar.com has suggested that the company might be forced by fuel economy regulations to abandon its V-8 Hemi engines or even its 707-hp Hellcat V-8 in favor of turbocharged V-6 offerings.
But Marchionne threw water on that idea. Asked whether new regulations will mean the death of V-8s such as the Hellcat, he said: "No. We offset. I mean, every time we do one of those things, we offset."
Still, automakers won't be able to purchase credits from one another forever. That has meant an engineering push inside FCA to find another solution.
"The biggest challenge for me now is to find truly a compact and midsize car solution that is actually [greenhouse gas] positive, by a stretch," the CEO said. "And you know how the rules are, so it's a question of footprint and so on. I need to find a solution, so I've got a bunch of kids who are sitting in the basement tearing apart the front end to find out whether we can find a way out."
The other major powertrain issue hanging over FCA has been ongoing performance problems with its nine-speed automatic transmission. The nine-speed, which debuted in the 2014 Jeep Cherokee, had been the source of troubling consumer complaints even as it rolled out in other vehicles. Earlier this month, FCA said it had produced its one-millionth unit of the nine-speed at its massive transmission complex in Kokomo, Ind.
Marchionne said changes have been made to the nine-speed for the 2016 model year that should quiet its critics.
"We've been working our ass off with [designer ZF Friedrichshafen] on the nine speed," he said. "There were some things that were built in as a technical solution that proved to be, in hindsight, unwise, and so the remedial stuff has been put in place."
You can reach�Larry P. Vellequette�at�[email protected]. 

We think of turbochargers as god-like challengers of physics, capable of miraculously expanding the size on an engine and endowing it with awe-inspiring amounts of power. But as divine and brutish as turbos come off, the truth is a rather precarious wafer-thin layer of oil is all that's keeping a fiercely boosting turbo from going critical mass, sending shrapnel flying and bringing the party to a halt.

The point of contention is the center section; the main shaft and a collection of bearings that keep the wheels purring even at stratospheric 100,000-rpm speeds. Generally turbo-bearing failure can play out in two ways-a quick death by oil starvation or a long, drawn out suffering compliments of an imbalance. Of course, there are more ways a turbo can meet its maker but these are the most prominent.
Oil starvation can be the result of simply burning oil, kinking a turbo oil line, losing oil pressure in some manner, suffering from oil coking or any number of other horror show scenarios. When this happens in a sudden and significant manner the bearing squeals and seizes or the wheel violently slams into the housing, which in many cases can twist the wheel completely off the shaft. Bottom line, it's game over for your turbo.
The end came quickly for these poor turbos. Death by wheel shaft snap and a twin killing featuring death by wheel explosion/housing burst. The culprit is profound neglect as evidenced by the coked oil residue resulting in a single, catastrophic event. Either way something serious has gone down. But it's not always quick. A gradual oil starvation can compromise the turbo's bearing and lead to a wheel imbalance. The wheel assembly can see well over 120,000 rpm, which explains why balance is so critical.

To evaluate a suspect turbo remove the intake set-up before the compressor inlet so you can access the wheel. Spin the wheel by the nut and note any resistance or rubbing; keep your ears open because you should be able to hear a scraping sound. Also check the shaft for endplay and lateral movement at the shaft nut; wiggle it. Bearing clearances can be properly and accurately checked with a dial indicator. The key numbers here are more than .003 to .006 inches (up and down) while endplay should be no more than .001 to .003 inches (in and out).
Compressor wheels can also be damaged by outside forces, read foreign object damage (FOD). Poor filtration (or no filtration) can introduce dust and dirt into the compressor. The objects can sandblast, chip, bend or break off blades causing an imbalance and assuring the turbo's eventual failure.
Charbroiled oil can also bring down the hammer on an unsuspecting center cartridge. Coking is burnt oil residue, a hardened version of the sludge we see falling from the sky in those Castrol GTX commercials. The coked oil blocks the flow of oil through the bearing, which signs the turbo's death certificate.
The residue at the base of this turbine wheel is oil coking. The coked oil residue conducts heat via friction, which takes out the turbo. The bluing on the shaft is a testament to how intense the heat can get prior to failure. It has also suffered foreign object damage and has shaft grooving from bearing failure. What did this turbo do wrong to deserve such abuse?
Using the proper oil; weight/viscosity wise as well as type wise, and change it at proper intervals will combat this evil. First and foremost step up to a quality synthetic; the anti-friction qualities of synthetics are light years beyond conventional, mineral-based offerings. Next, play the numbers game right. Basically the greater the difference between the numbers of multi-viscosity oil the worse the product will be for a turbo application. Stick with factory recommended weights, squeezing 1.3 extra horsepower from your engine with some 0-weight madness is not worth the long-term peril improper lubrication represents.
Let's breakdown oil viscosity ratings with 10W-40. The '10' is the oil's viscosity rating at 0 degrees. The 'W' signifies winter. The '40' rating is the oil's viscosity rating at 212 degrees. Oil engineers must balance these ratings and match the engine's operating parameters and weather conditions the engine will see.
[gallery link="file" columns="5" orderby="rand"]Employing an oil cooler can help eliminate the heat that causes coking and reap benefits for the engine's internals. Also turbo timers allow the turbo to cool properly as coking can be the result of hot shutdown where the wheel assembly spins with no movement of its lubrication, which breaks down the bearing's protective film of oil causing metal-to-metal contact. These maladies, along with poor maintenance habits, poor oil quality and starvation issues and can tag team to produce oil coking or other catastrophic conditions that spell doom to your turbo.
Diligence is key to long turbo life. Using the right oil, changing it often and knowing where the pitfalls live will keep your turbo purring and your adrenal gland pumping for miles to come.
Article by:�Evan Griffey (link:�http://www.superstreetonline.com/how-to/engine/sstp-1004-turbo-failure-boost/)
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