The Volkswagen Jetta 2.5 5 Cylinder sounds quite nice actually.

K

Kowalski

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The US Spec Jetta 2.5 5 Cylinder 20 Valve engine based on the 5.0 V10 40 Valve of the Gallardo, and it sounds very nice when modded; listen to it:

[YOUTUBE]http://www.youtube.com/watch?v=sPnZS0zwQTI&mode=related&search=[/YOUTUBE]
[YOUTUBE]http://www.youtube.com/watch?v=zNziVoRWhEM&mode=related&search=[/YOUTUBE]
[YOUTUBE]http://www.youtube.com/watch?v=YmrXf9RgEjY&mode=related&search=[/YOUTUBE]

The only thing that really disappoints me, is that VW managed to squeeze only 150 Bhp of this engine. I'm sorry, but that is just absolutely pathetic. A normally aspirated 2.5 20 Valve 5 Cylinder engine could easily output 200 Bhp.
 
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Imagine the disappointed faces whenever that thing drives around. "ooh, is that a Lambo i hear?"...then that drives past.
 
Kowalski said:
The only thing that really disappoints me, is that VW managed to squeeze only 150 Bhp of this engine. I'm sorry, but that is just absolutely pathetic. A normally aspirated 2.5 20 Valve 5 Cylinder engine could easily output 200 Bhp.
Click to expand...

I don't know if it makes sense there in the US but, here's what happens where I live: the Jetta 2.5 has it's pricetag lower than VW desired, otherwise it woudn't be able to compete against the New Civic, the Brazilian New Vectra and the old Toyota Corolla. Plus, Ford is being very agressive with their Fusion prices, which are bigger than all cars I said and costs basically the same. So, what's the point? The next sedan in VW lineup is... the Passat! VW is afraid that when people find the difference between Jetta's and Passat's price, the second one won't sell well. I guess it may happen in the US, where the 200 hp version is surely cheaper than here in Brazil. That could be one of the reasons for the Jetta's 150hp...
 
The Passat isn't selling well at all in the US, so that's pretty much a non-factor here.
 
I hate to burst your bubble, but the 2.5l VR5 engine in the Jetta and Passat is based on the VR6 engine minus one cylinder and have nothing at all to do with Lamborghini (the engine was introduced in 1997, one year before Audi bought Lamborghini). And it's a 5-cyl engine, they all sound great. But nothing beats the almighty Quattro!
 
The only thing that really disappoints me, is that VW managed to squeeze only 150 Bhp of this engine. I'm sorry, but that is just absolutely pathetic. A normally aspirated 2.5 20 Valve 5 Cylinder engine could easily output 200 Bhp.
Click to expand...
You don't give them enough credit: horsepower is only half of the deal. You get 170 lb-ft of torque at 3750RPM. No, it's nothing spectacular, but it's better than most 4-cylinders. Plus, with low compression, it will be well suited for turbo charging :)
 
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They are minorly related. It shares the cylinder head design. The bore and stroke dimensions are the same.
 
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Yes, and the same goes for everyone who says that the new Audi S6 has a Gallardo V10 engine, it just doesn't...
 
Kowalski said:
^
They are minorly related. It shares the cylinder head design. The bore and stroke dimensions are the same.
Click to expand...

The 5 cyl in the jetta is a V5 engine with a 15 degree angle, those heads would NEVER fit on the straight banks of the Gallardo's V10. The Gallardo's V10 is based on the V8 found in numerous Audis since 1988, which in turn was loosely based on the base design of Audi's 5-cyl engines. VW's VR6 engines, on which the V5 in the Jetta is based, was designed from scratch in the and was introduced in the Golf VR6 in 1991. So they have absolutely nothing in common.

Edit: The wikipedia article on the Gallardo indeed claims that the 5 cyl in the jetta is half a Gallardo engine, but it is wrong.
 
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Adunaphel said:
The 5 cyl in the jetta is a V5 engine with a 15 degree angle, those heads would NEVER fit on the straight banks of the Gallardo's V10. The Gallardo's V10 is based on the V8 found in numerous Audis since 1988, which in turn was loosely based on the base design of Audi's 5-cyl engines. VW's VR6 engines, on which the V5 in the Jetta is based, was designed from scratch in the and was introduced in the Golf VR6 in 1991. So they have absolutely nothing in common.

Edit: The wikipedia article on the Gallardo indeed claims that the 5 cyl in the jetta is half a Gallardo engine, but it is wrong.
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Are you sure about this? Everything I've read says that the Jetta 2.5 5-cyl is an inline motor and not a V5. VW.com's website also states that the cylinder head design is borrowed from the Lamborghini Gallardo V10.

http://img53.imageshack.**/img53/1937/vwspecuw4.jpg

Also, in an article posted on VWVortex, they had this to say about the engine:

Being based loosely on half of the V-10 Lamborghini Gallardo engine you might hope to see half the Lambo's 500 horsepower, but that isn't the case. VW tells us that the 2.5 is detuned for use as the entry-level engine. This means that expensive variable valve trains, dual plenum intakes and such all got left on the shelf in the name of cost savings. VW's engineers are quick to point out that the 2.5 could make more than 200-hp with some basic modifications.

http://www.vwvortex.com/artman/publish/article_1283.shtml

Looks like the Jetta engine has more in common with the Gallardo than the VR6. But yes, we all know it isn't just a matter of cutting the Lambo's V10 in half.
 
All sources i have read thus far (most of em printed magazines, so cannot readily quote) point out that the 2.5L 5-cyl for the US market is a further development of the 2.3 and 2.5l VR5 engines found in earlier generations of European VWs and Seats
 
Adunaphel said:
The 5 cyl in the jetta is a V5 engine with a 15 degree angle, those heads would NEVER fit on the straight banks of the Gallardo's V10. The Gallardo's V10 is based on the V8 found in numerous Audis since 1988, which in turn was loosely based on the base design of Audi's 5-cyl engines. VW's VR6 engines, on which the V5 in the Jetta is based, was designed from scratch in the and was introduced in the Golf VR6 in 1991. So they have absolutely nothing in common.

Edit: The wikipedia article on the Gallardo indeed claims that the 5 cyl in the jetta is half a Gallardo engine, but it is wrong.
Click to expand...

it's definately an inline-5 on the new Jettas
 
Come on, we need some someone of a north American persuasion, who has access to a shop (not a VW dealer) to clear this up.

The motor is definitely a sexy sounding beast, but I'd bet "some" money that it's a derivative of the VR6 (that I KNOW AND LOVE) rather than a derivative of the Lambo V10

Google isn't helping at the moment, so we need specialist advice...
 
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Visited my friend's VW shop here in town last week, and as always I took a look around the garage area to see what's happening. There was a Mk5 Jetta in there, and I can assure you that the engine in that car is a true inline-5, with all five cylinders line up in a nice, neat row.
 
I agree with Asthenia. The volvo 850 had a 2.4 5 cyl making 168 horsepower and 162 lb/ft.
Does anyone know if these engines have been reliable? I assume so becuase its got a volvo badge.
you'd think after 15 years engine technology would have improved by leaps and bounds.
 
asthenia said:
So why is it that Volvo's 2.5L inline 5 has been making 168hp for 15 years?
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Hmm, I'm guessing here, but I'd think the difference might be down to the way hp is rated now versus back then. SAE changed the way they measure horsepower, so numbers are generally down across the board (more for some marks than others). For example, a 2005 Acura TL was rated at 270hp, but in 2006, it was changed to 258. Exact same motor.
 
Just like most other VW motors, things change radically with a simple ECU re-map. I am convinced they did this to keep the insurance prices down.

Unitronic is producing software that adds 20-25 horespower with a simple reflash, and just think about what a simple turbo kit would do on that car!
 
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