Hello I'm just wondering is there any other way ti make my 1.0l polo fast?? I've done the golf match elbow thing a couple if months ago and thats all. Just want that tiny bit more oommmph just to get me around

GT cam - bike carbs - decent exhaust system

GT cam - bike carbs - decent exhaust system

^ This is pretty much it, after that you will be spending shit loads of money for no real gain and might as well save up to drop a GT lump in.

It is just a 1l after all!

My old mk2 1.05L bready was fairly pokey haha I drilled out the cat material in the down pipe, removed the center silencer, ported the intake side of the engine and inlet manifold and modified the pierburg carb. Would definitly consider running it only on v power or tesco momentum 99 and advancing the ignition timing? May well work out cheaper to run or atleast the same and may release a few horses. Did want to try 400cc bike carbs on it though :p

Mine has the golf elbow & powerflow and its quicker than my last 1.0. Iv got a GT lump waiting to go in though which will be pushing probably double what it currently is. Can't wait!

My 1.0L engine spec;

1.0L AAU

Dual Valve spring GT head

Gt cam

Mikuni 400cc bike carbs

Mk2 ignition

Decat

It is quick for a 1.0L and its alot more fun than just putting a standard GT engine in. I have not yet had it on a rolling road but i am aiming for near standard GT power.

Edited 23 February, 201313 yr by bugpolo

Does the GT head on the 1.0 really make that much difference? As i've heard the standard head actually has better shaped ports as odd as it sounds. I also want to get a bit more power out of my 1.0. Reason being, insurance and i wont have to bother with engine changes! Not too bothered about speed, but wouldnt mind a bit of extra acceleration.

The Gt Head has bigger inlet valves and ports also has dual valve springs. I don't know how much difference it would make on its own.

main benefit being the cam in the gt head.. coupled with bike carbs makes a quick 1 liter dan!

Not come across anyone on here with a gt head on an aau/hz bottom end with standard injection so don't know what the results would be like..

I think not all GT heads had double valve springs, and even the ones that do don't really need it.

But if you can get one and have it ported and polished then you should see some nice results :)

Yeah not all of them did and not really a must have tbh. just put a gt cam in the 1043 head should see a decent gain dude :-)

Can pick a cam up off here for 40 quid

push down a really big hill

Matt-C is bang on for that.

If you dont want to go down the bike carb route then try fitting the bigger 1.3 Throttle body as well. If your using a GT cam with longer duration then having an easier breathing TB will help get that air in.

push down a really big hill

With a good prevailing wind.

:lol: :lol:

It's a 1.slow....

No point trying to make it faster, just keep it reliable. Good service and enjoy it.

Only way to make it a little faster is by starting off binning the engine. No point wasting money on it!!!

Having some head work, changing the carb and cam will get the most gain. I've been in a 1.3 car bed polo coupe which had a carb from a 1.6 driver, lots of head work and a different cam mated to a four speed box and it pulled fantastic.

false economy modding a 1.0l IMO

The amount you would spend trying to make it less powerful than a GT could just buy you a GT with the potential to get even more out of it.

But then i'd have to change an engine, with pretty low miles, that i know is strong and reliable, for some GT lump thats totally unknown and possibly unreliable, with more miles than the space shuttle and that has probabbly been thrashed.

And i could say that an engine swap is a false economy. I could just go and buy a faster car, like a MK2 Golf GTI and fiddle with that.

Would agree not really worth modding a 1.0 never get money back, better going 1.3.

Would agree not really worth modding a 1.0 never get money back, better going 1.3.

Lol, love how much difference people think there is in power between a 1.0 and a 1.3

There both as pointless as each other in terms of economy.

The reason a GT engine produces 75bhp, and a AAU only 45 is not just because of the displacement.

you can make a 1.05 faster just by fitting a GT or other close ratio 5-speed gearbox. The standard 5-speed in a 1043 mk2 coupe is very short geared which is what you need when power isn't there!

My advice, don't go mad. Reversible mods like a GT cam and a 1.3 throttlebody so you can get your money back. I'd also say decat it if you had a H/J reg. Don't bother with the exhaust. the 1043 and standard 1272 share the same exhaust and it's not a restriction.

If power increases linearly with displacement a 1043cc 'GT' would make around 62bhp. There was a 1093cc engine fitted to the mk1 that had 60bhp, and that was low compression and only had a single barrel carb on it. So 60hp is possible from the AAU without too much trouble I should think. The thing that is going to go all to cock if you do this is the ECU map. You might even be better sticking a 1.3 ECU in there.

Bike carbs might be cheap to get hold of but the costs of getting them correctly set up and adapted to fit plus the need to acquire a mk2 ignition setup is going to make the conversion fairly expensive.

afh 80 quid . Bike carb set up in total 80 . Servicble items optional

125BHP For under 200 . Cant complain lol

false economy modding a 1.0l IMO

The amount you would spend trying to make it less powerful than a GT could just buy you a GT with the potential to get even more out of it.

but then you could argue that a gt engine is a waste of time, when you could drop a g40, or 1.4 16v, or even a 1.6 16v.

But then all those engines are a waste of time, when you could fit a 1.8t in the rear of your polo and use it to do 10 second 1/4 miles like that black coupe from a few years back, where do you draw the line?!

Sometimes it is just fun to see what a bit of tuning will do to an engine, be it a weezy 1 litre or a fire breathing v8.

IMO there is nothing wrong with tuning up a 1 litre a bit, especially as it can be done cheaply with the 1.05 engine in the 2f.

1.3 throttle body and inlet manifold £25 from a scrappy

£20 for a dremel to port match the cylinder head to the inlet manifold

golf tophat and free flowing cone filter, less than £20 if you buy second hand

polo gt cat back exhaust £50 new for a pattern one, loud brap brap exhaust are a waste of money if your onll aim is to improve flow.

gt cam £40

1.3 ecu £10 second hand, they never fetch much, as there is no demand for them

all of which which are bolt on and won't loose much money if you unbolt them and sell them on. I built up a similar spec 1 litre polo some years ago albeit without the gt cam, it was easilly as quick, if not quicker than a std 1.3 spi. Improved the car no end and all for less than £150.

If you wanted to take things further you could fit a 1.3 head (all 1.3 heads inc. gt are the same, in terms of port size)

gt gearbox, although from mem the ratios aren't that different to the 4 speed fitted to the 1 litre

I reckon that 70bhp would be a realistic target without spending a huge amount of cash.

beyond that I think you would be spending big money for minimal gains. some people have fitted multi-point in the past, but I don't believe that will give much in terms of bhp gains over the spi system. if anything the spi setup would be easier to tune to the 1 litre engine, due to the bigger range of different spi parts from other vw engines which used the same spi system.

Buy a nitrous kit.

go on a diet and dont carry passengers, especially fat ones

When i have a bit more money i am going to mess with mine just for a bit of fun, and then put it on the rollers to see what it makes. I would be pretty happy/ impressed if it made 60-70 bhp. The only problem i have is the damn cat. Cant get rid of it as i have an M reg