Hi guys,

just wondering (from a vRS point of view anyway) is there any difference at all between the old vRS which was always a TFSi and the new one which is just TSi? I always thought the TSi was just for the 1.4 twin charged engine :S

Hi guys,

just wondering (from a vRS point of view anyway) is there any difference at all between the old vRS which was always a TFSi and the new one which is just TSi? I always thought the TSi was just for the 1.4 twin charged engine :S

Think you will find that the new engine has got a chain drive cam. Hooray........future saving - the chain won't need replacing. Engines all used to have chain driven cams by the way, the worm seems to be turning.....................................

when TSI first came out it was as you say a twin charged engine but now seems to be a marketing name as the smaller 1.4's can be bought with just the Turbo and not the Supercharger.

TSI Turbocharged, Supercharged, Injection

TFSI Turbo Fuel Stratified Injection.

Although in america its Fuel Straight Injection and Turbo Straight Injection

take your pick.

whatever the changes skoda still have the old version of the 2.0 TSI engine - just take a peek at a golf or A3 2.0 TSI and see the 211bhp compared to the 197 of the skoda! - and not to mention the mpg !!!

Think you will find that the new engine has got a chain drive cam. Hooray........future saving - the chain won't need replacing. Engines all used to have chain driven cams by the way, the worm seems to be turning.....................................

What you really want is a gear driven camshaft, like on the big touareg diseasal engines. The down side is that whining noise they produce but to be honest it really doesn't bother me. Way less intrusive than the effects of forced induction everywhere (induction noise, exhaust noise).

What you really want is a gear driven camshaft, like on the big touareg diseasal engines. The down side is that whining noise they produce but to be honest it really doesn't bother me. Way less intrusive than the effects of forced induction everywhere (induction noise, exhaust noise).

Where do you think a turbocharger gets its energy from? It gets it from the exhaust gas, which is slowed and cooled in the process, which quietens the exhaust.

whatever the changes skoda still have the old version of the 2.0 TSI engine - just take a peek at a golf or A3 2.0 TSI and see the 211bhp compared to the 197 of the skoda! - and not to mention the mpg !!!

So is the new vRS a 'TSi' which is chain driven?

There is another recent topic where the guy has been told his vRS TSi was producing 218 bhp from standard.

Yeah and Dyno Gremlins are on the loose

Where do you think a turbocharger gets its energy from? It gets it from the exhaust gas, which is slowed and cooled in the process, which quietens the exhaust.

C'mon you're sharper than that. You've only chosen to pick one part of the story.

A turbo charger will have the effect of reducing volume caused directly by exhaust gases, yep. But that's not what i contended.

It will result in a broader spectrum of frequencies produced and on top of that, these frequencies the resonators in your exhaust do nothing to dampen.

That produces an annoying noise, only present in the exhaust of a turbo charged engine.

For the other main forced induction case - a supercharger - it will produce less of a tonal change in the exhaust (which isn't the same as no tonal change) but will increase volume.

In both cases there will be a sound produced from the operation of the device, supercharger whine and turbo whistle, which although not strictly part of my initial description, i didn't really expect anyone to selectively choose part of the story!

* disclaimer, since i feel it might be necessary! There are really anal specific cases for both turbo-, and super-charger where the above can be shown not to be true, however for the above i have not considered a change to cam profile, or what pressure differential may exist between induction vs. back pressure from the exhaust system.

Yeah and Dyno Gremlins are on the loose

:rofl:

C'mon you're sharper than that. You've only chosen to pick one part of the story.

A turbo charger will have the effect of reducing volume caused directly by exhaust gases, yep. But that's not what i contended.

It will result in a broader spectrum of frequencies produced and on top of that, these frequencies the resonators in your exhaust do nothing to dampen.

That produces an annoying noise, only present in the exhaust of a turbo charged engine.

For the other main forced induction case - a supercharger - it will produce less of a tonal change in the exhaust (which isn't the same as no tonal change) but will increase volume.

In both cases there will be a sound produced from the operation of the device, supercharger whine and turbo whistle, which although not strictly part of my initial description, i didn't really expect anyone to selectively choose part of the story!

* disclaimer, since i feel it might be necessary! There are really anal specific cases for both turbo-, and super-charger where the above can be shown not to be true, however for the above i have not considered a change to cam profile, or what pressure differential may exist between induction vs. back pressure from the exhaust system.

Blimey! that was intense, I didn't understand a word of it, but I like it!

Edited 28 May, 201016 yr by Pagey1255

Not really adding anything to the topic, but I quite like the whoosh and hiss of my turbo, my chavvy side peeking through I guess.

I also like supercharger whine too, not that Ive heard that many, the whine of the Holden Maloo is imense.

Much nicer sounds than a barried corsa with big exhausts

Not really adding anything to the topic, but I quite like the whoosh and hiss of my turbo, my chavvy side peeking through I guess.

I also like supercharger whine too, not that Ive heard that many, the whine of the Holden Maloo is imense.

Much nicer sounds than a barried corsa with big exhausts

Many moons ago a friend of mine had a supercharged Dimma Williams Clio! That sounded awesome!

my ld mini cooper s sounded ace loved that car