GolfGTIforum.co.uk
Model specific boards => Golf mk3 => Topic started by: Walshy155 on 12 November 2016, 18:25
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Hello there gtiforum, I have signed up to request some knowledge of the experts. I've recently bought anot her golf mk3, my first mk3 was a flash red 1995 golf rolling stones edition with the 1.6 AEA engine, after reluctantly selling that and going to Peugeot 206 GTI 180 which was a decent car but not a golf so now I have a golf 1.8 with the ADZ engine which is 1996 and has no rust and is pretty much unscathed with 90k miles, I'm very happy with the car and for the price £170. Anyway to ask my question I was wondering after styling the car to my taste and also sorting the handling out, what engine mods could I do as I have no idea with these engines being single point injected so the experts here must know. Cams, forced induction, exhaust, intake, engine swaps? What can I do guys which isn't a massive amount of money how hard is it to get the car a little nipper maybe 100-140 at the wheels, not sure how hard it is to swap the VR6 or ABF into this car I've read the drop in and they don't. Or shall I keep the engine and maybe go down the route of cams or carbs. Please advise me, thanks very much
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Abf or vr will drop straight in.
If you want to mod that engine. 4 branch manifold of a mk2 will go on. Gti 8v cam. Port and polished
Put some bike carbs on it or throttle bodies so that the rubish single point injections gone.
Dont think itll go 140 whp but itll be fairly fun to drive
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Thanks for the advice mate, so if I want to run a VR6 or ABF will I need the donor engines wiring loom and ecu or anything else, also the gearbox i currently have will not fit and will be too weak I assume and will only be a 5 speed
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Vr is only 5 speed anyway.
To put a vr into yours you will want. Engine, gearbox loom exhaust etc and some 280mm front brakes.
Or a full written off vr to get all of it, dependent on if you want the seats and such.
You and a couple of mates who are handy with a spanner should be able to smash it all out in a weekend.
I once built a mk2 (one shell to another) in 9 hours with a mate. Mk3 is practically the same
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Okay cheers mate, just looking for a cheap vr6 and box or ABF and box, I've got access to a full garage for free and a mate who will do say job for a few cans so I could pull it off, I'm not after a fast mk3 just a tidy one so I don't mind between the ABF or VR which is better do you think mate, I've read that the gearing on the ABF is better than the VR but the VR does have that amazing v6 sound, I've done some research when I had my old mk3 AEA and the carbs sounded a good idea, I could fabricate any intake's needed but are carbs reliable, I'm trying to keep this on a budget as I sadly bought an Asia rocsta which needs to go to make money for the golf
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Ummm carbs are alright... They needs balancing and setting up by someone who knows what there doing.
I had a mate with a 1.3gt on bike carbs that quite easilly kept up with my 1.6.
And ide personally go abf... But thats only because i have a a4 v6 so wouldnt need the vr sound aswell. Both are priced the same.
If your on a budget, ide do it in stages. Brakes, handleing and then the engine last
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Thanks for the advice mate, I think I'll do it in stages and go down the mk2 exhaust, 8v gti cams and other engine mods first and Ill also do the handling. In the end I may go for carbe or if I find a good low milage engine and box I may grab it. Just out of curiosity also how much can the fueling be adjusted on the SPI, as far as I know they are electronically fuel controlled so would that help with a turbo fitment or is it complete pants to supply any extra fuel? You've been a star mate, a lot of foggy details around the net and you've been helpful cheers4
Also another question when you said 8v cam is that the mk3 or mk2?
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Either id suppose. Mk2 gti will go straight in.
A mate did it and informed me when i had a spi engine. Never enquired further as was fitti g a different engine.
As far as supplying fuel i had a mkr pump in mine and it put more fuel through it i think but its 1 injector and for anysort of power increase id personally say is as good as a chocolate fireguard. Haha
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Okay mate so as far as I know I'm going to order the mk2 gti 8v cam and 4branch manifold, any other bits I can bolt on?
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Exhaust. Infact i have a never fitted 4 branch. But will need a decat pipe making up.
Exhaust would be pretty pointless long term if. Your changing engine as the bore will be wrong for it
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Okay mate also what's an mkr pump is it the pump for ktronic mk2s?
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Mk4 fuel pump is what that should have said. Haha.
You pull your pump housing and swap the actual pump for a mk4 gti pump as it runs a little higher pressure.
Let me know if your interested in that r branch. Dependent on where you are you may be able to pick it up or get it dropped off
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What version of gti 115? and I'm just outside Swansea
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If its mk4 1.8t 150 bhp one.
M
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How much are you looking for the 4 branch mate
Also been looking at changing to multi point from the 100 hp can that work or is the loom all different and the inlet manifold different?
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Youd have to change loom ecu and manifold. Maybe head depending on where injectors sit.
I guess my pm didnt send.
50 quid mate. Im about 15 milesfrom chepstow in the forest of dean so pm me and well sort something
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Can't seem to find pms mate sorry haha
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If your on phone version i dont know. But its at the top of the page on normal version. Ill send you one
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For some reason you cant recieve pms maybe jv will know why
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Not sure mate, really thinking of turboing the engine for fun and if it goes bang do an engine change
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Small turbo. Stacked gaskets. Eventually itll go bang
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well if it goes bang I have a reason to hunt for an engine then haha
although I was thinking small turbo at 3 or 4 psi just for fun as I can source loads of pipe for free and I'm a fab welder so I can fab the manifold up and boost piping the only way of thinking of getting more fuel into the engine is a FMU but the mono motronic uses a built in fuel pressure regulator so I cant think of any other way apart from the mk4 pump as you said mate but even then the regulator will defeat the mk4 gti pump
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Hmmm.... Go carbs and have the floats altered so they can cope with a turbo.
Only way i can see getting around it without standalone management.
Or 2nd injector plumbed in on a switch just above the tb to ad fuel.
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I know its a stupid question but I have a few boxfuls of mk3 parts from when I bought my old golf mk3 rolling stones and luckily I kept them ever since and I have an injector rail with inectors and a pressure regulator, how would I plumb fuel into this and how would I operate it correctly as far as injection timing goes and where would I even wire the injector to. thanks mate
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Youd have to adapt the inlet manifold to accept the injectors. If you were going to do that id bupass the single point.
Injector timing i dont know without standalone management. Or change the engine loom to one with 4 i jectors and swap ecu. But by the time youve done that you may aswell have stuck a 2litre 8v in with a turbo bolted to it
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I was thinking of running the extra injector in parrarell off the single point injector terminals although this would probably half the injection pulse width to cope with an extra injector so basically sharing the power between two injectors then that would be no benefit sadly, I've seen this done before on a 2slow mk3 where he had a switch for an extra injector on the gearstick and that was a complete junkyard turbo build and ran oem fuelling and ignition