GolfGTIforum.co.uk
Model specific boards => Golf mk2 => Topic started by: bosco on 16 October 2010, 17:47
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hey guys thinking on doing an abf conversion into an '85 mk2 and was wondering whats the story with running it on throttle bodies? a guy i no has Zx12r Itb's for sale and seeing as i am a complete newbie (but willing to work :grin:) whats involved in it and mainly is it worth it?
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Better and less hassle to run it on factory managment
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Use the search function. Plenty of advice and opionion on the best methods.
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http://www.golfgtiforum.co.uk/index.php?topic=169537.0
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thanks wayne
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Ask Diamond Hell for advice. He'll be your best friend.
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Got plenty of time and money?
Go ITBs and some sexy management.
Think 170bhp will be spicy enough for you in a stripped out G2 and you're tight?
Keep the OEM management.
Either way it'll be better than carbs or K-jet.
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:grin: and how much time and money are we speaking? should i invest in other things first to up the power? thanks diamond hell
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:grin: and how much time and money are we speaking? should i invest in other things first to up the power? thanks diamond hell
Decent filter, decent exhaust manifold + exhaust. Service items. Go from there :smiley:
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thanks neo will do
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and obviously no cat, which helps.
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has anybody done an abf conversion into a 1985 mk2 or any year around that? i just wanna no if there is any reason fo me to buy say a post 1990 mk2 or are they the same. thanks?
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has anybody done an abf conversion into a 1985 mk2 or any year around that? i just wanna no if there is any reason fo me to buy say a post 1990 mk2 or are they the same. thanks?
Later mk2's had a different wiring loom and I believe it makes the conversion easier.
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has anybody done an abf conversion into a 1985 mk2 or any year around that? i just wanna no if there is any reason fo me to buy say a post 1990 mk2 or are they the same. thanks?
i have, but its running kjet meaning it is likely to explode and kill everyone within a 1 mile radius if revved over 6.5k
wiring was pretty easy though, all plugged straight in apart from one of the idle control module wires, a few of the instrument wires and another which i have forgotten which need splicing into the existing loom
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so it should be ok if i get a wiring loom from an 89-92 gti maybe?
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so it should be ok if i get a wiring loom from an 89-92 gti maybe?
I've asked loads about this, the general concensus is that it's better to use the mk3 ABF OEM management engine loom spliced into the back of mk2 fuse box. There are how to guides getting it running on Kjet. Just search on here or google ABF conversion :smiley:
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if you're doign bodies it doesnt matter what car you get, thewiring will need splicing no matter what. earlier the better really as they're lighter than the big bumper cars. if going oem managment 90spec makes it easier, but pre-90 isnt too hard really. worst case I can make a conversion loom for you if you dont fancy it? but my fusebox faq covers the pins on fusebox, and i have loads of diagrams which will help you with the conversion
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the early mk2s had a ce1 loom amd the later ones had a ce2b loom though so would i get a later mk2 fusebox and plug the abf into it?
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just replug the loom it's almost as easy as sireing for engine conversion gets
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aye up to 90 they had ce1 and after that it was ce2. can be a delay between manufacture and being sold so check the hazard switch, best way to know for sure. hazard on dash = ce1, hazard on column = ce2. mk3 golf uses ce2 fusebox as well, hence 99% plug n play. some bits differ like the wiper motor loom is a lot shorter on mk3, plus some have the lighting loom combined into engine loom. mk2 has seperate lighting loom which you leave in the car when doing engine swap.
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i have, but its running kjet meaning it is likely to explode and kill everyone within a 1 mile radius if revved over 6.5k
FACT.
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okey dokey il take that into consideration :grin: thanks mr hell
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K jet is not that bad but given the choice it would be better to run the factory managment on an ABF.
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i have, but its running kjet meaning it is likely to explode and kill everyone within a 1 mile radius if revved over 6.5k
FACT.
Explain this fact please mate, just about to swap out my KR with an ABF, just block and head with everything swapped over.
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i have, but its running kjet meaning it is likely to explode and kill everyone within a 1 mile radius if revved over 6.5k
FACT.
Explain this fact please mate, just about to swap out my KR with an ABF, just block and head with everything swapped over.
The problem is that k jet can and tends to run lean
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you just have to set them up properly, its not hard
its one of those things you get on a forum thats been exaggerated
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But let's face it, even if K-Jet is set up 'properly' there's nothing to stop it wandering about or being caught with its trousers down if you fill up with 95RON petrol when it was set up on 99RON.
It has no closed feedback loops, like the dual knock sensors of the ABF Digi 3.2. Its doesn't have the lambda to help manage the mixture.
It has a flappy plate meter that controls the fuel, which is supposed to run on a specific sized engine, to which the bowl that the flappy plate rises in has been ground out to suit. It *may* or may not have a knock sensor, with a map that's set in stone, or maybe just some vacuum advance on the dizzi.
It does not have the capacity to protect and effectively manage the engine, it just dispenses fuel vaguely right and throws spark at it.
Do it right and keep the proper management on it, rather than crowbarring in some hotch-potch of bodged together bits.
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if your going to K jet a 2ltr use a 9A it's better suited to that application.
there are meany litte differances with the ABF and all together they add up. i'm not saying it's unsutable becasuse 1 motor went bang it because i've had several apart to find out what happend and the cause has been the same.
the ABF is higher compression and it has longer rods meaning the piston stays at TDC longer, meaning if fed the same AFR and spark timeing as a 9A it much more likely to have det issues, and as the using the kr ignition it getting spark advance desinged for a kr. none of the differances are massive but together they are enough for potential problems
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Not wishing to hijack but as we are discussing the ABF here I thought I'd ask rather rthan starting another thread, is the Lambda probe on the ABF a 4wire type?
Been offered one off a 1.8t but the plug would be different(?)Probs simpler getting an ABF one, but anyone know a good supplier of Lambda's?
Mine got lost in garage move. :rolleyes: :evil:
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yeah its 4 wire type, can use bosch universal one which can be had quite cheap, just need to get the plug end to fit your loom from the scrappy (early ones differ to late)
this is what you need:
Universal 4 wire - 0 258 986 503 (LS03) - 18 watt heater and grounded case