Article: A House With Three Mint Chevrolet Berettas ... in 2019? This is Amazing.

DannyITR

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https://www.montrealracing.com/wp/w...n-condition-parfaite-en-2019-cest-incroyable/

I wanted to share with the community a rare sight that I came across this week. It’s a house that I happened to be driving by with not one, not two but three Chevrolet Berettas parked in the driveway.


What’s so special about the Chevrolet Beretta? Nothing actually, other than it’s age. It’s just rare to even see one on the road, let alone 3 which look to be in excellent condition parked in the same driveway. Obviously, the resident really likes his Berettas. I’m sure many of us have our own favorite 1990s cars that we’d like to possess but this person is actually doing it and for that they deserve praise.


The yellow one looks to be a 1990 Indianapolis 500 edition Beretta given the license plate. I can’t tell what version the other two are but they look similar. The base model Beretta came with the same 2.2-litre four-cylinder motor as the Cavalier coupled with a three-speed automatic. The GT came with a 125 horsepower 2.8-litre V6. In later years theses were upgraded to 3.1L. The GTZ has a 2.3-litre inline four which made 180 horsepower and a five-speed manual.


Chevrolet stopped production in 1996 but as a kid I remember liking these cars very much. The dark taillights, the throaty sound of the engine and the cool looks did it for me.


If I see the owner I’ll stop and talk to him to get more information about his remarkable collection that is a throwback to the late 1990s.



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Daaaaaaaaamn ! Whats whit all those old gm poping out like this

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GTZ quad cam c'était avangardiste comme moteur. J'aurais aimer voir quelqu'un les pousser un peu plus.

https://en.wikipedia.org/wiki/Quad_4_engine

Dans le temps c'était normal de voir sa chez les Japonais mais les américains avait pas encore fait beaucoup de moteur DOHC



The engine family known as the Quad 4s was debuted to the public in the spring of 1987. The Quad 4 is a 2,260.5 cc (2.3 L; 137.9 cu in) DOHC inline four-cylinder produced by General Motors' Oldsmobile division. The Quad 4 name is derived from the engine's four-valve, four-cylinder layout. The engine was a modern design for its time, using a cast-iron block and an aluminum head. Even though belts were more popular for this purpose on OHC engines at the time, chains were used to time the camshafts to the crankshaft. The water pump is also driven by the timing chain. The Quad 4 was the first wholly domestic regular production DOHC four-cylinder engine designed and built by GM; the only prior DOHC four-cylinder engine offered by GM was the Cosworth Vega, which featured a DOHC head designed by Cosworth in England.

First released to the public as a regular production option for the 1988 Oldsmobile Cutlass Calais and Pontiac Grand Am, the engine's availability expanded to Buick in late 1988 and Chevrolet in 1990, after which it became a mainstay in GM's lineup until its cancellation after the 2002 model year.

Simultaneous to the engine's release in 1988, Oldsmobile attempted to further the Quad 4 name through highly publicized events featuring such cars as the Oldsmobile Aerotech. Another such event was the 1988 Indianapolis 500, when Oldsmobile was chosen to pace the race with a convertible version of their Cutlass Supreme, and a pre-production turbocharged Quad 4 was the engine of choice for their pace car. Although it was publicized in 1988 that the Quad 4 was forthcoming in a 180 bhp (134 kW) "HO", as well as a 250 bhp (186 kW) turbocharged version (the same engine that was in the pace car that year), GM never released the turbocharged version as a publicly available option. Although the engine in Oldsmobile Aerotech was a purpose-built, turbocharged example; it was solely meant to showcase the capability of the engine's design.

After the first few years of rave reviews of the Quad 4, the automotive press began to criticize it for its noise, vibration, and harshness (NVH). At the time, the Quad 4 was generally compared to turbocharged four cylinders, V6s, and occasionally V8s. The first changes of the Quad 4 to address its NVH were two rounds of exhaust port size reductions, followed by the addition of balance shafts in 1995. Further changes were made for the 1996 model year when the engine's bore and stroke were changed, and the engine was subsequently redubbed "Twin Cam".

In addition to the 2,260.5 cc (2.3 L; 137.9 cu in) DOHC versions, there was also both a short-lived SOHC variant, the "Quad OHC", available from 1992 to 1994, and the 2,392.3 cc (2.4 L; 146.0 cu in) Twin Cam from 1996 to 2002. The Twin Cam was replaced by the Ecotec for the 2003 model year.

All engines in the Quad 4 family were produced at the Lansing Engine Plant (plant five) in Delta Township near Lansing, Michigan. The Twin Cam was the last engine that was engineered and produced solely by Oldsmobile; the Aurora V8 and Intrigue V6 shared architecture with the Cadillac Northstar.

In recent years, the design has gained a minor following in hot rodding circles as a period style engine because it looks similar to a 1930s Offenhauser DOHC design (once you remove the ribbed aluminum cover, exposing the tall "cam towers" and the deep valley between them holding the spark plugs).[1][2]
 
Quad4 4cyl...y avait pas grand chose de pire que ca côté fiabilité dans les année 90.

c'était un leur premier moteur double arbre a cam en tete aussi, normalement pour ce genre de design les fabricant utilise un belt mais eux utilisait une timing chain.

Ce genre de setup la que j'aurai aimer voir:

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https://www.drivingline.com/article...-tech-light-at-the-end-of-a-long-long-tunnel/

GM'S QUAD 4 ENGINE WAS A HIGH-TECH LIGHT AT THE END OF A LONG, LONG TUNNEL
General Motors had a rough track record with technological progress in the 1980s. Everything from the X-body failure, to the diesel disaster, to the inability to match encroaching Japanese rivals in fuel economy or features had GM struggling to catch up in terms of tech for most of the decade.

One of the few bright spots for the General during those dark times was the Quad 4. This unassuming four-cylinder engine marked the first time in a long, long stretch where Detroit's once-proud behemoth tackled a ground-up design that didn't result in a cavalcade of angry customers, massive recalls or lawsuits from the federal government. The Quad 4 might not have been perfect, but it brought several advanced ideas to the market in a format that slowly nudged GM towards the future of modern drivetrain engineering.

Forward-Thinking Tech
From a modern perspective, the Quad 4 isn't very flashy. At the time it was conceived, however, it was a moonshot for a company still smarting from a string of very public pie-in-the-face moments that had cost it tens of millions of dollars and major market share that it would never recover.

The key to the Quad 4's name was its use of four valves for each of the four cylinders, matching with a dual overhead cam. This was a first for GM, and it allowed for reasonable power to be squeezed out of a small displacement engine, putting to bed the wheezy four-cylinders that had long lurked in the General Motors portfolio. The cylinder head was an aluminum design, and a number of other aluminum parts were used inside the setup, which rested on an iron block.

A 16-valve DOHC design wasn't the only new concept explored in the Quad 4. The engine eschewed a distributor in favor of an ignition system that used the crankshaft position to fire one of two engine coils installed above the cylinder head itself. It was a simpler design that pointed the way to the coil-on-plug systems found today.

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here were two versions of the Quad 4 in common usage. The first, which debuted under the hood of the 1988 Oldsmobile Cutlass Calais after five years of development, produced 150hp and 160 lb-ft of torque from 2.3L, with a redline of 7,000 rpm. The second was a High Output version that offered 180hp thanks to a higher compression ratio and better breathing. It arrived two years later.

Gradual Progress
The Quad 4 was eventually expanded to include Pontiac, Buick and Chevrolet models. A heavily modified version of the engine also powered the Oldsmobile Aerotech landspeed record car as part of a publicity program. The street motor was more powerful than several larger V6s in the GM stable at the time and was much more frugal than the dinosaur designs that were commonplace during Detroit's '80s period.


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All was not perfect in Quad 4 land, however. Initial complaints focused on the noisy, thrashy nature of the four-cylinder when pushed hard, a result of there being no balance shafts included in the original design. Instead, lightweight reciprocating mass components were substituted in an effort to quell vibration. GM would eventually allow its engineers to triumph over its accountants, but it took a long time: It would be 1995 before balance shafts were added.

Other improvements made to the motor during this period included a new oil pan, crankshafts, connecting rods and engine mounts, all in a bid to deal not just with harsh operation but also head and oiling problems. With these changes came more power: 160hp for the standard LD2 version of the Quad 4 by 1990, but then a 10 pony drop once balance shafts arrived on the scene. A 190hp high-output variant called the W41 saw limited use in the Cutlass Calais (1991) and Oldsmobile Achieva SCX (1992-1993).

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For 1996, a larger 2.4L four-cylinder dubbed the Twin Cam hit the scene. Horsepower for this rebranded Quad 4 remained at 150, and almost all of the earlier engine's problems had been dealt with (although timing chains and water pumps continued to be an issue). The engine would power the next generation of small and medium-sized GM automobiles until it was replaced by the EcoTec four-cylinder shortly after the turn of the new Millennium.

Better Late Than Never
For all the good that the Quad 4 brought to GM's ailing engine line-up, it's important to point out that while it was an internal revolution for the automaker, it didn't exactly peg the needle on a global basis. Twin-cam, 16-valve engines weren't a new concept when General Motors introduced theirs, and in many ways the motor came late to the small car party.

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It's a charge that could also be leveled at the EcoTec, an excellent engine that proved GM finally understood what was necessary to be truly competitive at the entry level. If only the Quad 4 had come out five years sooner—or the EcoTec arrived in the mid-'90s to replace it, rather than waiting for post-2000—there may have been a chance for the company to generate buzz around its compact vehicles where once there had been only vitriol.

Instead, these two high tech motors achieve only internal milestone status and have us wondering what might have been if the giant's gaze had shifted away from large displacement, emissions-choked gas guzzlers a decade before the brand began its slow fade from industry leadership.
 
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Est ce que vous préféré que je post la version française aussi? Ils sont toujours disponible dans les deux langues si vous suivez le lien.
 
Shiiiettt le gtz noir!! Mon voisin en avait un bleu manuelle, c'etais rapide en esti pour le temps et je l'ai toujours trouver beau. Ça sonne bien en plus.

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Méchant about what? Je lui dit de ne pas se casser le derrière à traduire le texte

Since the Azteks thread, every fucking time that I'm taking the 40W to DDO, I spot that yellow pos that I never gave attention since the last 15yrs lol
 
Le noir la shape est quand meme nice.


Pour le moteur Quad j'avais ca dans mon Z24, esti que j'en ai fourré du monde avec ca entre 2 lumieres!! SiR et GSR, VR6 (first gen) meme les mustang 4.6 (premiere génération) je leur faisait la vie dur...

Tres torqueux sur toute sa plage de puissance et mon Z24 avait rien électrique, pas de toit, un petit weight reduction, disons que c'était assez surprenant
 
Y avais pas un V6 2,9 ou 3,1 dans le Z24 justement?


On a eu un corsica 89 avec le quad4....il cognait comme un diesel(jamais trouver pourquoi) et il c'Est rendu a plus de 200K km pareil...sti c'était vache.
Ensuite un GrandPrix 91 avec le 3,1...ca marchais pas pire et un gros bateau avec confort dur a battre! (le moteur virais genre 1300rpm a 120km/h...torque de fou pour un "petit V6")
 
un grand prix sa prenait le 3.8 SC , ca cetait de la machine. Ou un bon vieux bonneville, un vrai salon roulant.
 
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