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for a rental I got a Mitsubishi Outlander Sport (RVR in Canada) with about 200 miles on the odo. the target buyer is your weird aunt who always called herself ‘the fun aunt’ when you were 11 because she’s 44 but says she looks 41, unmarried, says words like ‘groovy’ , funky’ and ‘kiddo’ and always takes you to applebees for appy hour for some belated birthdate you had a week and a half ago. the aunt whose name your mom would slowly sigh out after hanging up another phone call where the subjects shifted between dried ovaries, outdated match.com profile photos, gravity’s toll and questioning why that nice boy way back in grade 12 never called again, while your dad sat at the kitchen table staring stone faced at the newspaper knowing if he made one smart remark, he’d be hit with it. she was on a tuesday evening date with a divorced 47-year old beergut named richie who drives the shuttle for an automall, and the sales manager at the mitsu dealer promised richie a $100 gift card to montana’s for each successful referral. your aunt jumped at the chance for a second date to ride richie’s short bus around the dealerships all day. unfortunately, richie interpreted ‘ride richie’s short bus’ incorrectly on the second date, so your aunt was promptly dropped off in front of a shiny Mitsubishi Outlander Sport. she loved how ‘it looks like a little truck’ and couldn’t believe the giant sunroof. a sales rep upon seeing an actual person on the lot, thought she was lost opening the door, the old navy yoga pants on aunt’s diminishing derrière slid onto the cheap, plasticky leather seating, her chunky jewelry-laden hands running along hard, hollow, textured plastics, leaving fingerprints on the sparse piano black plastic accents. ‘ooooh i can fit all my girlfriends in this for a road trip’ exclaimed your aunt to the sales rep, who silently doubted the plural in girlfriends as he looked at the decent interior space that welcomed nobody. as if by magic, the radio is tuned to 95.9 SPLASH FM, ‘WITH TRIX AND THE CHIX,‘ and shania is belting out on speakers tinnier than the discman headphones you had when she was popular. unable to see over the exaggerated hood and rear quarter panels, your aunt doesn’t care because the outlander allegedly has four wheel drive, so even snow won’t stop her from safely getting to her administrative job at the caster wheel wholesaler. in just a few short hours, the young finance guy who politely yet deftly ignored any ‘is there a missus todd?’ questions has put your aunt in the outlander for 72 months at just a little over $100 a week. now your aunt has plenty of hatchback to put bumper stickers like ‘I got crabs in Maryland’ and ‘Caution: Blonde Driving,’ and you’ll appreciate the last one because the mitsu’s handling isn’t good and feels disconnected from the road. the cvt makes the engine seem lazy, devoid of pep and drive. like your aunt, the mitsubishi outlander sport just... exists. it pleases no one even if it’s trying and it makes you feel bad.
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Have you ever wondered by all the Bi-turbo V6 engines are always less impressive than you expect? Specific Output always seem to be worse compared to 4-cylinder counterparts. Maximum Torque seems to always arrive later and the engine always seem a tad lethargic. In short, they always seem to SUCK relative to the 4-cylinder turbo engines the same manufacturer puts out. They really SUCK compared to Inline-6 legends like the Nissan RB26 or the contemporary BMW N55. For example:- GM made a 2.0T (LTG) with 272 hp @ 5,500 rpm with 260 lb-ft at 1,700 rpm. That is 136 hp/liter and 130 lb–ft per liter. This same engine is later tuned to permit more mid-range boost with torque rising to 295 lb-ft @ 3,000 rpm (147.5 lb-ft/liter). This engine operates on 18 to 22 psi of boost and is able to get to full torque at 1,700 rpm or 3,000 rpm. At the same time, GM made the 3.6 Turbo (LF3) with 420 hp @ 5,750 rpm with 430 lb-ft @ 3,500 rpm. That is 116.7 hp/liter and 119.4 lb-ft per liter. This engine operates on a paltry 12 psi of boost but can’t seem to get to full torque until 3,500 rpm. Throwing really fancy and expensive stuff like Titanium Connecting rods and turbine wheels at the engine helps a bit. But, even the uprated 3.6TT (LF4) still took 3,500 rpm to reach 18 psi. A boost level the ubiquitous Malibu engine has no problem hitting at 1,700 rpm. Why? REASON The reason is very simple. And, it is not something you can conquer with expensive turbos or fancy materials. Just look at the diagrams below... In a 4-stroke engine, the exhaust valve opens once every two rotations of the crank for about half a rotation of the crank. In a 3-cylinder engine, or any bank of 3-cylinders, exhaust flow to the turbo is interrupted for significant periods with the exhaust valves closed on ALL cylinders. A V6 Bi-turbo engine is essentially two Inline-3s with each turbo is feeding off one bank of 3-cylinders. In an Inline-4, one exhaust period is always beginning while another is ending. Hence, while exhaust flow diminishes, it never really falls flat completely. In an Inline-6 the periods overlap generously ensuring a continuous exhaust flow to the turbine that does not diminish appreciably throughout the entire cycle of the engine. SOLUTION The solution is to use ONE Turbo for both banks of cylinders in an V6. But that is problematic. You either have to route the exhaust from one side to another -- which is both a packaging nightmare, a source of leaks and a measure which causes it to lose a lot of energy (heat) getting to the turbo. Or, you can use a Hot Vee design with the exhaust exiting in the valley of the Vee. A Hot Vee is problematic in the V6 because most of them are 60 degree engines which has little to no room in the Vee for a turbocharger. In addition, a single large turbo will stick through the hood in a Hot Vee. Hence, a Hot Vee is seldom used. When it is used, it is employed in a 90 degree V6 with two turbos -- which defeats still results in interrupted flow to the turbines. Hence, V6es continues to suck in turbocharged applications -- then, now and (probably) into the future!
