MK1 Golf GTI 2.0 TFSI Edition 30 p12 (was 2008cc R1 bike carbs)
Posted
Old Timer
1983 Lhasa Green MK1 Golf GTI
Along with the battery cable from 5 series BMW. £5 for both items. Bargain!
Time to get the spanners out once more
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Old Timer
Then I've run the new +ve battery cable from the starter motor through the bulk head to the rear of the car.
Job done! I've now got 5-8kg of weight moved away from the front corner of the car to low part in the rear. Hopefully this will help with more balanced cornering
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Old Timer
By now I'd been running the engine with 146bhp for a while. The plan was for a cheap and easy power upgrade.
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Old Timer
I'm from near monks cross in Huntington, not far from you, so hopefully meet up at a venue once mines on the road.
Matt
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Old Timer
pazwaa said
Don't know how I've missed your thread so far, but just corrected that mistake, what a great read it was too, great car and thread
I'm from near monks cross in Huntington, not far from you, so hopefully meet up at a venue once mines on the road.
Matt
Thanks Matt.
There's more people around the local area than I realised!
Do pop over to the club stand at the VW festival at Leeds on Sunday and say hello.
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Old Timer
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Old Timer
pazwaa said
Cool, hopefully be over to the vw festival Sunday morning, so will come find you. Hope weather is better than last year
rain, arrgghhhhh!!! (fingers crossed then!)
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Old Timer
manifold.
I then picked up a MK1 Golf GTI 8v manifold from ebay for £15. This was then cut down and adapted as below.
Then along with another ebay purchase, Yamaha R1 bike carbs
The result is this:
I then used four 020 sump plugs to seal the original fuel injection ports Fuel regulator fitted to reduce k-jet fuel pressure, as I am still using the original fuel injection fuel pump.
Trial fitting on manifold and carbs. Plenty of room!
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Old Timer
..but couldn't bring myself to cut away any of the original bodywork, so I used a couple of pipes to feed air from the front of the car instead.
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Old Timer
To finish the job off, I took the car to Bogg Brothers for a rolling road tune up.
The engine was running lean so the main jets where drilled out to 1.75, but since fitting the new manifold and having a further tune up they have now been drilled out to 1.8 - which is the size normally used with 16v engines.
Cost?
Probably about £250 excluding the rolling road tuneups.
Power?
I can't directly compare before and after, as Bogg's don't do rolling road print outs like Stealth do, but the rollers display showed 145-150bhp at the wheels @ 6000rpm. Not exactly big turbo power, but not bad for a little 8v engine.
It's also got a nice BWWWARRPP induction noise now too!
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Old Timer
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Old Timer
Hi Cero,Cero said
Bet that sounds great every time you hit the gas pedal.
The sound is worth the 25mpg I get
Good question!Cero said
Bearing that you're still using the k-jet pump?? How are you controlling the fuelling ?
I had to be a bit creative for that. The k-jet fuel pump is 5 bar IIRC, and the bike carbs only needs 3 bar.
The Filter King I fitted has a built in filter and fuel pressure regular, it's the model that comes with a removable pressure gauge, allowing me to check and set the reduced pressure.
Obviously, there will be excess fuel, so this simply gets returned back to the fuel tank via a T piece connection.
I bought a couple of extra k-jet fuel flexi hoses which would normally be used to connect to the k-jet fuel filter, and cut off the ends
( genuine vw items too! Apologies to anyone who was wanting one of these, I assuming they are obsolete now!)
and used these to connect to the Filter King.
I've added some text to the image below for the important bits. As you can see I'm still using the genuine VW metal fuel lines too.
Last edit: by Lhasa2008
Posted
Local Hero
You obviously get the required 2bar though if you have measured it…
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My other hobby - www.pix-al.co.uk
Posted
Old Timer
The return feed is off the T piece, so not directly on the path of least resistance, if you know what I mean.AL_Mk1 said
I would have thought that with that set-up, the majority of the fuel would just get returned to the tank due to it being the path of least resistance for the fluid?
You obviously get the required 2bar though if you have measured it…
I wasn't sure it would work at first TBH, but it's a surprisingly simply and effective solution.
The fuel pressure is measured from the Filter King outlet directly feeding the carbs, so allowing the pressure to be accurately measured
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Moderator
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Old Timer
Thks mate.Melteddrummer said
Top work mate this build just gets better. I wouldn't know where to start
It's easy to start, grab a 10mm spanner and work your way up For anything stubborn, either a lump hammer or angle grinder is useful It's only when you have a pile of unrelated parts on the garage floor that you are in trouble! I've previously used photographic evidence to help put things back together (Especially for some of those complex fiddly bits)
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Old Timer
You can just see the servo vacuum and mfa vacuum feed on the photo below.
Last edit: by Lhasa2008
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Old Timer
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Old Timer
Probably one of my favourite engine mods.
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Old Timer
Original VW Lhasa Metallic touch up paint.
Made in Wolfburg, W. Germany. I couldn't find a date of manufacture, but I assume it's pre the Berlin Wall coming down.
Yes, that's the price I paid on it too!
There are too many online users to list.