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Model specific boards => Golf mk4 => Topic started by: paradisiac82 on 21 May 2016, 12:44
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OK, so as most know I have had my Golf a while now, it has had its issues, most of which have been fixed but still one or 2 niggles which need to be sorted. Will be getting some extra income soon so looking at the best route forward and advice really.
I have 4 options really, or a combination of.
1. Buy a new Mk4 Golf without the issues
2. Buy a second hand engine and recondition it
3. Find a reasonable priced reconditioned engine
4. Buy a cheap run around and recondition my engine
The wings on mine need replacing as they are rusty, seats are in good condition but not recaros, door trims worn so will need replacing, front speakers have had tweeter cables cut so and nasty cheap speakers fitted so will need replacing, boot lock seized so wont turn with key. Other than that love the car, it handles really well and seems to pull and drive as I expect. Turbo was reconditioned last year so that should be strong, the only issue mechanically I am away of is it struggles to start unless you give it some acceleration, and its low on compression on 1 cylinder.
I really like the idea of a 1.8T, but how much more fuel does it use than the PD150? Another thing that is going on in my head is if I can get a second engine (either to recondition or already done) I could upgrade turbo, intercooler, hoses etc whilst still driving the Golf, but how much realistically will that cost and how long will it take to save/do etc then puts doubts in my head.
I guess basically if you take out all my rambling, does anyone have any rough ideas on pricing for options 2&3 (would want to replace as much as is wise to replace so it lasts a long time and would be strong enough to cope with upgrades), and then once I have a good engine what are the best upgrades for the PD150 with rough prices.
Then finally, what would all that relate to both cost and power wise to just buying a 1.8T and upgrading that?
Sorry for the long post, thanks in advance for any advice
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Money either way.
If it was me id get a runaround. Pull the engine, recon it, hybrid turbo, frontmount egr delete amd decat. Map it to high heaven and engine all the torque.
Could also do the bushes and such while youll have a runaround.
Price wise is all on where you go and what you choose to use parts wise.
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Money either way.
If it was me id get a runaround. Pull the engine, recon it, hybrid turbo, frontmount egr delete amd decat. Map it to high heaven and engine all the torque.
Could also do the bushes and such while youll have a runaround.
Price wise is all on where you go and what you choose to use parts wise.
Yeh thats tempting me the most, but as the wings and all need doing as well as tidying up some of the interior, and not to mention the loss in compression on 1 cylinder, how much will need replacing on the engine?
I'm thinking:
Headgasket
Injectors/seals
Cam
Cambelt/pulley
Water pump
Aux belt/pulley
Hoses
Then clean the EGR (or delete) and inlet manifold. But...what if cylinder 1's compression is due to piston/rings, cracked head etc am I then throwing money at a weak engine that will pop with the extra power.
In my head a 1.8T is the best option if I can get it cheap enough, modify that and then get a decent PD130/150 for daily drive (unless the 1.8T isnt too bad on fuel)
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In my experiences between the 2. My pd130 does 40mpg average my 1.8t was 30mpg average.
So theres not alot there but the more power you push out the 1.8t the mpg goes down.
But with pd itll be the same.
My v6 quattro a4 is chipped to 190bhp and that averages 33mpg.
Golfs will get more as its lighter.
If its rings put rings init. Could be head. But you wont know til its off and tested. Wings and interior could be sorted when yoyr rebuilding engine.
Rings are a cheaper option. Coupd be there just stuck in the piston instead of being out like they should be.
Back on track. I have the passat tdi as a Dailly and a mk2 golf for fun. Always use my golf though. You could get a 1.8t but as a fun car you could choose anything and just have a tdi as a dailly
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yeh, or get a little 1L thing as a daily driver and a nice golf for fun lol soo many options, just trying to cost out how much in reality it would cost to service everything on the engine that would make sense whilst out to see if its worth doing or just starting with a better base engine.
Then its factoring in, would running the second car, whether its a TDi golf or 1L thing, work out more expensive (tax, insurance....) than the saving on fuel on a modified TDi/1.8T
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I know what your saying.
Depends on how many miles you do day.
All to think about. A 1.8t is okay if driven sensible. But then a tdi isnt so good if thrashed all day
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do about 15 miles a day, about 6 of those are dual carriageway the rest is town driving so not very economical, averaging around 30-35mpg in Golf but I'm not sure its as economical as it could be if fixed/reconditioned lol
Which are easier to upgrade the TDi or the 1.8T? dont want silly power, just something with some go and as much grip as possible
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About even id say. My mate had a pd150 mapped and had loads of torque. He also had a 1.8t mapped. Says theres not alot in it.
Price wise its about the same aswell. Tdi you could just map and enjoy.
Gti youd need more bolt ons to get the most out of it.
Petrol turbos sound better though. Handling could be the same so doesnt come into it
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15 miles a day and he's worried about fuel consumption..... :whistle:
Even a VR6 wouldn't ruin you with that low a mileage.
From description of the car with wings rusted away, engine knackered, interior in a state; personally I would not sink any money into that. Drive until next MOT and then break it and get something newer unless you can fix all that stuff VERY cheaply.
I have seen plenty of reasonably well kept mk4s for under a 1000 quid. They are now where decent mk3s were about 3-5 years ago.
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15 miles a day and he's worried about fuel consumption..... :whistle:
Even a VR6 wouldn't ruin you with that low a mileage.
From description of the car with wings rusted away, engine knackered, interior in a state; personally I would not sink any money into that. Drive until next MOT and then break it and get something newer unless you can fix all that stuff VERY cheaply.
I have seen plenty of reasonably well kept mk4s for under a 1000 quid. They are now where decent mk3s were about 3-5 years ago.
At the moment its only 15 miles a day, but in the future that may turn into a lot more, I was using the 15 miles current trip to show that with its mixed driving I'm getting 30-35mpg so would like something ideally close to that if not better (if thats possible with remapping and upgrades added) from either my TDi, another TDi or 1.8T
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You want it all, a performance car with low fuel consumption.... and nearly no car will do both.
Power comes from fuel,..... the more power you use the more fuel you'll burn. Change your driving habits and you'll be able to get 50mpg even with your current trips.
I know what I'm on about, my fuel consumption varies from 30 to 70 mpg..... :p
Depending on whether I drive it round country lane corners like a minger, like I stole it on the German motorway or just easy off and cruise round or behind a lorry on the motorway not using brakes at all.
In a mapped car mpg tends to get worse. Especially if it's a higher stage mod....
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You want it all, a performance car with low fuel consumption.... and nearly no car will do both.
Power comes from fuel,..... the more power you use the more fuel you'll burn. Change your driving habits and you'll be able to get 50mpg even with your current trips.
I know what I'm on about, my fuel consumption varies from 30 to 70 mpg..... :p
Depending on whether I drive it round country lane corners like a minger, like I stole it on the German motorway or just easy off and cruise round or behind a lorry on the motorway not using brakes at all.
In a mapped car mpg tends to get worse. Especially if it's a higher stage mod....
I didn't say I want power AND low fuel consumption, I said I want power without sacrificing too much fuel consumption, as in, would getting say 200-250BHP out of a 1.8T have a significantly lower mpg than a 1.9 TDI @ 200-250BHP. I am aware driving styles alter the amount of mileage you can get, which again, will a 1.8T be easier or harder to drive economically than the diesels? I know in my TDi I have to do a lot of gear changes as it doesn't like low revs, not sure if this is a fault or they are like this, so is hard keeping the mpg good in town driving.
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In my tdi I tend to find driving at around 2k most economic.
But in the 1.8t I find that the turbo has to be spooled to keep it economical.
Also I find that in my experiance mapped cars return better mpg at normal driving.
I have a rule with my cars. If they can do 60miles of mixed driving to 10pounds of fuel there good to me.
And a 1.8t can piss that
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In my tdi I tend to find driving at around 2k most economic.
But in the 1.8t I find that the turbo has to be spooled to keep it economical.
Also I find that in my experiance mapped cars return better mpg at normal driving.
I have a rule with my cars. If they can do 60miles of mixed driving to 10pounds of fuel there good to me.
And a 1.8t can piss that
I was getting around 60 miles for £10 in the Mitsubishi Carisma which I thought was ok so if I can get something around that if not better from a 1.8T mapped then I would be happy. I like the TDi and if mapping it and maybe going hybrid turbo would give me a bit more power with little fuel consumption drop then would be an option either on this car on another TDi, especially if more work needs to be done on a petrol to get the same gains as a TDi, although petrol ones do sound nicer than my tractor engine.
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Nice deisel sound is a v6 one. Haha
Umm diesel will give you the power with a map. But like you say the petrol sounds nicer. And the right recirc valve on a 20vt sets them off.
Love the air being dumped
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Nice deisel sound is a v6 one. Haha
Umm diesel will give you the power with a map. But like you say the petrol sounds nicer. And the right recirc valve on a 20vt sets them off.
Love the air being dumped
is there a better engine to get in the 1.8T's? there seems to be several varients on this site
http://www.clubgti.com/showthread.php?34368-1-8T-20V-Engine-codes-FAQ
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Auq or agu are the better golf engines. Aum dont like power
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I think I have not been really clear :D
If you don't change your driving style/profile you won't see much more mpg no matter what car. It will be easier to get good mpg in a diesel, petrols are not that far behind if driven sensibly but short distances and near full throttle they drink more fuel (they typically go lambda = 0.85 i.e. << 1 on high load to protect engine and cat but injecting 17% more fuel than you'd have oxygen for does it for fuel economy).
I have never known anyone with a map need less fuel after it - at least on long running average. Individual runs - maybe.
If you want to get a 1.8T get a BAM engine - 225 bhp and it is plenty fast (you can chip 'em to about 260-270 and my mates TT which runs around 265 is pretty much a rocket ship and thanks to quattro and wide soft tyres you can actually use it). That's if you can find one....
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ok, so best bet is PD150 with maybe a hybrid turbo and remap. The next question, what would be the main things you would replace on an engine?
So far I think:
- Seals/Gaskets (Head, Tandem Pump, piston rings, injectors..)
- Cam, Belt, Pulley
- Aux Belt, Pulley, Water Pump
- Hoses (Fuel, Turbo, Inter-Cooler)
- Clean Inlet Manifold & EGR
- Clutch/Flywheel
- Engine Mounts
Is there anything else I am missing?
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Main bearings big end bearings. Small end bearings. Thatll put it like new.
Oil pump should be good
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Get head refurbished, valves bedded in again. New stem seals.
Measure pistons and cylinders if you want to go to that extent and maybe have it bored out and fit first oversize pistons (higher spec ones).
Get higher spec big end bearings. They will suffer at additional torque at low revs.
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Just done 100 mile trip and to be honest, I think I'm sold on keeping the ARL, it was just easy to keep at a reasonable speed but have that little bit to nip past people when needed. Put some Red-Ex in and got 1 big puff of black smoke and none for the rest of the trip, I know its not a permanent fix but the car felt a lot smoother and responsive and just kept pulling, but this could be a placebo effect also. Will see how it starts tomorrow when cold. I know wont solve the compression issue but has made my mind up for sure either this ARL or a new one is the way I will go.