Club G40 Forum
Club G40 => General Car Chat => Topic started by: z3i on August 02, 2013, 10:07:04 pm
-
Was looking up parts on ebay and came past this
http://www.ebay.co.uk/itm/AUDI-A1-VW-GOLF-POLO-IBIZA-FABIA-1-4-TFSI-SUPERCHARGER-COMPRESSOR-03C-145-601-E-/190677113003?pt=UK_CarsParts_Vehicles_CarParts_SM&hash=item2c653dd8ab
anyone thought about fitting one to a g40? think it would be more efficient than the hungry m45?
being new its gonna be reliable as hell!
just curious as to whats out there in supercharged terms
lysholm
g60
g40
m45
m60
-
Have u ever seen the size of one of these? They are one third the size of an m45! doubt they can create more than half a bar of boost on a g40 engine!
-
Really?! That sucks, suppose thats why its charged and turbo charged
-
I read that the supercharger produced 10 psi until the turbo took over.
-
I read that the supercharger produced 10 psi until the turbo took over.
ah dam! Hardly worth having!!
also you profile picture is the lols james :P
-
Yeah but my g lader only boosts at 12psi max.
I bet with a smaller pulley it would be better, plus they werent really designed for high boost as thats what the turbo was for. Twin charge the G40 i hear you say?
-
Yeah but my g lader only boosts at 12psi max.
I bet with a smaller pulley it would be better, plus they werent really designed for high boost as thats what the turbo was for. Twin charge the G40 i hear you say?
now were talking!! I want to do something crazy like that lol :P would have boost constantly!
-
you will hit a wall using a charger this small and a turbo on a g40 engine cause an in line setup will be chocking from the size of the charger and a parallel one will be a bitch to tune without some fancy electronic system to isolate the charger when the turbo goes on boost. Even the engine this charger is designed for is struggling to solve these problems via electronic management! The only setup I can think of, that might work on a g40 engine is a twincharged one with the use of 2 of these chargers!
-
Why is the standard VW system struggling? All the TSI motors I've been out in are sweet!
-
What do you mean struggling? I thought the tfsi engine were dam good!
well i want more boost and more reliability but want to keep it supercharged
wanted to see what was out there
-
Didnt vw stop making the twin charged ones?
A friend who has the ibiza version said its sweet as and my mate who worked for VW said they test drive it and said it was just constantly pulling and real fun. Thats when he said you have to get the 1st "batch" of them as the 2nd lot dont have the charger.
-
Twin-charged motor still in 2013MY Seats for sure, I think the Golf now has the 1.4 TSI without the supercharger.
-
Dayum!! A 1.4 in a golf! Engines are going so small! Theres that new focus 130ps 1 litre and the new bmw 114 which i believe is a 1.6 turbo rwd. Crazy!
looks like g40's were 25 years ahead of their time :P
-
Ford's EcoBoost 1.0litre (3 cylinder) is in a fair few of their cars, from Fiesta to C-Max.
Good engine, downsized boosted has been the order of the day since early 2000 really, even BMW gave up the N/A M-Series motors for something smaller, and boosted.
I've driven a 160bhp Passat with a 3 cylinder 1.2l (Car circa 1600kg), which as expected was very good, key being blending between off boost performance (or lack of) and on boost performance.
-
Dayum!! A 1.4 in a golf!
mk1 & mk2 golfs came with even smaller engines
-
Yeah but mk1 golfs are the same weight as a polo and mk2 was only 950kg i mean in modern cars. The average golf now a days probably weighs nearer 1500kg!!
-
Talking about small boosted engines Cateham are using a approx. 600cc Suzuki motor with a turbo now...
-
Talking about small boosted engines Cateham are using a approx. 600cc Suzuki motor with a turbo now...
the 600cc engines produce quite a bit even in na form!
Did anyone watch the recent top gear? I wasnt aware formula 1 cars are only 1.6 litre!?!! Hows that even possible?
-
http://www.TOPGEAR.com/uk/car-news/mercedes-amg-formula-one-turbo-v6-engine-noise-2013-08-05
-
Talking about small boosted engines Cateham are using a approx. 600cc Suzuki motor with a turbo now...
the 600cc engines produce quite a bit even in na form!
Did anyone watch the recent top gear? I wasnt aware formula 1 cars are only 1.6 litre!?!! Hows that even possible?
In the 80's they were 1.5 litre with 1000bhp+...amazing what mad boost and high RPM will do!
-
That was a Good read jezza!
Ah tav, you reminded me. Ages i remember one of the master techs at bmw saying the e30 m3 engine was based on a 4cyl 1000 racing engine. Thats why all the other big litre e30's are straight six, but yet the hardcore m3's had straight 4's
-
What variants are there for the 1.4 turbo supercharged lump? I've driven the Ibiza Bocanegra as I was going to chop my Cupra diesel in for one, "the brakes were shit" and "it couldn't pull your pants down, let alone away from anything else" is mainly what I remember, on top of no feedback. This was only 3-4 months on from coming from a G40 to an ibiza Cupra diesel (I also thought my car was shit compared to a G40- except the brakes, but they are a PITA £2k AP racing setup).
I think it's maybe exciting for someone that hasn't driven a poky hatch before but I'd hardly say it felt overwhelming in my experience of that 1 sample. Could have been a shitter mind! Defo had the turbo and supercharger as I made a big thing about wanting to try one to the salesmen. Felt really let down when I had a go. Like meeting your idol and finding they're a nob. A real let down :(
Also, don't forget boost pressure isn't the same as the flow rate. If it's like for like then fair enough but the differing resistance of intakes, pipework, etc on the 1.4TSI engine could be very different to a G40! so at the same point it "makes 10psi on a TSI" it could be....say....8psi on the polo, or 12 psi or whatever...
-
I think once youve driven a modified g40. There isnt much else on the market for that value that gives you that raw mental fast feel you get
Even e90 m3's seem slow (obviously they arnt) compared to the G they just feel refined, taken away, heavy and cumbersome
Yeah true. You need one of those graphs that tells you air output to revolutions, foubd one for the m45
-
I have a Golf TSI that have spent most of this year rebuilding and fixing. These are pretty complex engines!
The supercharger is small as you say but the gearing inside allows it to spin 5 times the speed of the engine (but remember it cuts it out at 3500RPM) so actually only ever spins to 17,500RPM.
The supercharger actually pushes the turbo when the engine gas flow can't, essentially it's pushing the turbo up to speed until the exhaust gasses are enough to push the turbo by itself. when the supercharger is boosting the actual manifold pressure gets upto 2.5 bar! yet when the turbo takes over it will generally be around 2 bar (but shifting more air).
The way this engine works would put me off trying to build a twin charge engine ever! it is very complex and has so many sensors to control when it boosts and when the super charger shuts over. not to mention flaps that direct the air depending on the boost air requirements (turbo or supercharger), then you have the mechanical aspect of the supercharger shut off which is controlled by an electro magnetic pulley on the water pump. There are also some flaps in the fuel rail part of the manifold which open and close depending on the torque requirements (controlled by manifold pressure/vacuum). There are three inlet manifold pressure senders for example.
Then you have mapping which is just a bloody nightmare! if you have a slight issue with the engine it can control wether or not to switch the supercharger on at all! then the wastegate is controlled via the ECU so it can also shut off the boost altogether.
Before you ask yes I have had issues with the electrics and its been a nightmare to diagnose and the VAG Com diagnosis is useless! So the G40 is a brilliant engine, charge air goes in, fuel goes in exhaust comes out simple!
The TSI is a great engine....when it works, the G40 engine is so much better in my opinion (old school all the way) forget this complex sensors everywhere and ECU having full control. Just cram the air in and fuel to the correct measure and away you should go :-)
The TSI engine is the closest they have come to the G40 equivalent and has potential for lots of power but they made some simple mistakes with this engine.
I think the cost of such an engine has become so much they have now made more efficient turbos that can spin up quickly and through the rev range meaning most TSI golfs these days are single charged.
G40 is still a more full drive :-)