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Author Topic: 16 valve  (Read 3019 times)

Offline Vwgtiking

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16 valve
« on: June 24, 2015, 05:59:37 pm »
Just found out today that the GTi is only 16v. The mk4s were 20v.

Why the drop in valves??
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Offline Ricky123

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Re: 16 valve
« Reply #1 on: June 25, 2015, 04:59:35 pm »
It's a completely different engine  :stupid:
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Offline Vwgtiking

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Re: 16 valve
« Reply #2 on: June 25, 2015, 06:02:41 pm »
Lol I know that. Just wondering why they dropped a few valves?
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Offline AJP

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Re: 16 valve
« Reply #3 on: June 25, 2015, 06:10:15 pm »
More valves doesn't neccessarily mean more power or efficiency.

Whatever the reason, I'm glad the TFSI was developed. It's twice the engine any bland 1.8T ever was.
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Offline Ricky123

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Re: 16 valve
« Reply #4 on: June 25, 2015, 09:11:01 pm »
^ couldn't agree more.. I was never a fan of the 1.8t, owned a couple but not for long, the tfsi is reason I came back to vw
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Offline Vwgtiking

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Re: 16 valve
« Reply #5 on: June 25, 2015, 09:12:22 pm »
I quite like my old 1.8t.
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Offline AJP

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Re: 16 valve
« Reply #6 on: June 25, 2015, 09:42:33 pm »
Quote from: Vwgtiking on June 25, 2015, 09:12:22 pm
I quite like my old 1.8t.
I didn't 'dislike' mine, but pound for pound what the 2.0T does with a k03 is a different league. From stock the TFSI feels responsive and sharp. Can't say that about the AGU I had. Even mapped.
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Offline Vwgtiking

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Re: 16 valve
« Reply #7 on: June 25, 2015, 09:59:10 pm »
I agree with that. Very responsive! And even better after remap!! Also got my new dv revD and Coilpacks fitted today!!
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Offline Ricky123

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Re: 16 valve
« Reply #8 on: June 25, 2015, 10:36:21 pm »
Quote from: Vwgtiking on June 25, 2015, 09:12:22 pm
I quite like my old 1.8t.

It wasn't a bad engine by any means. All comes down to personal preference.
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Offline AJP

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Re: 16 valve
« Reply #9 on: June 27, 2015, 10:14:11 pm »
Certainly not a bad engine. Plenty of power to be had with a k04. But I just found them lacking a bit of soul.

Saying that, mine was an early k03 engine, so hardly the pick of the bunch. I went round Oulton Park in the Shark Performance mk1 Octavia (BAM, anti-lag mapping etc) and that thing pulled hard.

But compared to the performance of a k04 TFSI it's a different game completely.
« Last Edit: June 27, 2015, 10:18:17 pm by AJP »
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Offline Vwgtiking

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Re: 16 valve
« Reply #10 on: June 27, 2015, 10:20:54 pm »
My gti is k03 tfsi
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Offline AJP

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Re: 16 valve
« Reply #11 on: June 27, 2015, 10:28:37 pm »
Quote from: Vwgtiking on June 27, 2015, 10:20:54 pm
My gti is k03 tfsi
Mine too. Just making the comparison pound for pound!
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Offline Vwgtiking

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Re: 16 valve
« Reply #12 on: July 03, 2015, 07:48:40 am »
Mine sounds like a tractor at idle.
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Offline Teutonic_Tamer

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Re: 16 valve
« Reply #13 on: July 16, 2015, 05:00:02 pm »
Quote from: Vwgtiking on June 24, 2015, 05:59:37 pm
Just found out today that the GTi is only 16v. The mk4s were 20v.

Why the drop in valves??

They needed to make room for the fuel injector - which, on FSI engines, squirts directly into the combustion chamber.  It is akin to a twin spark head - only instead of two spark plugs per combustion chamber, you have one plug and one injector.
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Sean - Independant Automotive Engineering Technician (ret'd)
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Offline Teutonic_Tamer

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Re: 16 valve
« Reply #14 on: July 16, 2015, 05:00:54 pm »
Quote from: Vwgtiking on July 03, 2015, 07:48:40 am
Mine sounds like a tractor at idle.
Most do!!!  :grin:
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Sean - Independant Automotive Engineering Technician (ret'd)
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~~ free official Golf V factory workshop manuals ~~
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