GolfGTIforum.co.uk
Model specific boards => Golf mk2 => Topic started by: jdm on 25 April 2012, 14:19
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Planning on running my GTI on twin 45 weber carbs but haven't got a clue were to start with the ignition/wiring side of things
Have the carbs,inlet, linkage ready to bolt on. Going to run a facet post flow pump at the tank to an FPR under the bonnet.
Which parts of the loom do I need an how do I set up the ignition? I'm keeping the original ECU in case the carbs idea doesn't work out for me and I want to go back to injection.
Any help would be appreciated as I'm a bit of a novice. Will probably have more questions as I go along.. :smiley:
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I'd imagine much of whats there would be of no use. I ran a Ford Zetec engine on bike carbs and used a custom manifold and bike fuel pump for the fuelling, your existing one will be too high pressure. Ignition may still work on the KR but not sure. Look into Ford EDIS and megajolt if it can't.
I'd also suspect you wont gain anything in power and use more fuel. I'd expect most of the advice from here to be not to do it.
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use the original ecu and loom it can be made to work ith littel effort
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I'd imagine much of whats there would be of no use. I ran a Ford Zetec engine on bike carbs and used a custom manifold and bike fuel pump for the fuelling, your existing one will be too high pressure. Ignition may still work on the KR but not sure. Look into Ford EDIS and megajolt if it can't.
I'd also suspect you wont gain anything in power and use more fuel. I'd expect most of the advice from here to be not to do it.
use the original ecu and loom it can be made to work ith littel effort
Not really doing it for huge power increases, more for the throttle response, sound and engine bay aesthetics and not bothered about fuel as its not my daily. I have read that the original ECU and loom can be used with little effort but I really need an idiots guide on how to do it :grin: What wires go where and what's needed, what's not...?.? Can't find too much info..
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If you have a 16v already, just leave the ignition side of things alone. Look at it all and you'll figure it out. You don't need to go out and get anything, its all there already?
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If you have a 16v already, just leave the ignition side of things alone. Look at it all and you'll figure it out. You don't need to go out and get anything, its all there already?
So what your saying is I bolt on the 45's, connect up the fuel and pump, attach the throttle cables and away I go.
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Yup, with reduced power and economy.
Knock yourself out.
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If you have a 16v already, just leave the ignition side of things alone. Look at it all and you'll figure it out. You don't need to go out and get anything, its all there already?
So what your saying is I bolt on the 45's, connect up the fuel and pump, attach the throttle cables and away I go.
Assuming you mean a new fuel pump and pressure regulator suited to carbs then yes, pretty much. Good luck finding someone to set the carbs up, getting to be a bit of a lost art now.
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Seasonal tune changes by the way!
Once in spring
Once in summer
Once in autum and once in winter :rolleyes:
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i find setting up carbs quite easy on the rare occasions that
A) the carbs arn't f**ked
B) you have enough or the right jets air correctors and emulsion tubes to get them to do as you wish.
so even at work i usally declare that we dont have the bits to set the up or that it's a spectalist "dark art" job as it saves a lot of hasstel as 95 % of the time you can garantee that to get the damb things to tune up right you need to rebuild them
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The carbs are almost new and they have already been to a local specialist who has jetted them to suit the 16 valve engine so hopefully shouldn't have issues there.
Is it possible to use the original k-jet fuel pump with a FPR or do I require a new fuel pump?
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disconnect and bypass the underfloor pump. the intank lift pump on it's own is plenty for carbs