GolfGTIforum.co.uk
Model specific boards => Golf mk2 => Topic started by: Goops on 20 November 2007, 20:30
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Hiya!
Was just wondering....... :rolleyes:
My MK2 16V GTI has a 1.8 engine...
whats the difference in performance from a MK2 16v GTI with a 2.0 litre engine??
Thanks in advance,
G
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Well standard the 1.8 is something like 138bhp. The 2.0 16v i have with the WUR mod done is 166bhp. When the modified WUR was on the 1.8 it was putting out 152bhp on the rollers.
The torque on the 2.0 is 146 Ib ft as against 124 on a standard 1.8.
:smiley:
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Man I guess I should have been more patient and looked for a 2.0! :grin:
The WUR Mod sounds like an interesting eventuality (if that is a word!)... what are the risks associated with this mod?
Additionally a friend of mine claims that the mk3 lump would go straight into a mk2 16V? Does this apply to the 2.0 only??
Thanks,
G
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er... you seem to assume that there was a 2.0 mk2. I can assure you that there never was. All mk2s that are 2.0 are either engine swaps or have been bored out.
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you can swap the bottom end for a 2ltr out of the mk3 or an audi, not sure on the engine codes which are usable... very worthwhile mod :) and not maga expensive in regards to performance increase...
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How much work is involved in that though? I might do it hmmmmmmm :laugh:
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the block is a 9a i think and if you are going to use it use the 1.8 kr head as it flows a lot better than the mk3 one and as far as im aware it is a straight swap :cool: :cool:
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Hey Slick yeah I kinda assumed that there was a 2.0 MK2 standard! Sounds like an interesting mod anyway....deffo wouldnt mind some more oomph!
On a side note, looks like summer will be spent on the car, what the hell was steve mclaren thinking........apologies to all the scousers but gerrard is so overated, not the least bit inspiring as a captain, depressed and angry we out of the competition! :angry:
G
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not quite 100% right slick, the US got the 2.0 16v 9a in a MK2 ;)
std the 2.0 16v 9a got 136BHP, compared to the MK2 1.8 16v KR which got 139bhp. This is becasue the inlet cam in the 2.0 16v is much milder to stop it killing the cat! fit a kr cam into a 9a head and you can get 150-160 without trouble :)
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not quite 100% right slick, the US got the 2.0 16v 9a in a MK2 ;)
Indeed, saw he was from west london though, and tbh, who cares about americans :tongue: :laugh:
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with their sh!tty petrol i bet its slower than our 1.8
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well who knows, could see some imported ones ;) I saw an american Jetta coupe the other day :cool:
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as above yes it is slower, down in power by 3bhp compared to our 1.8 16v ;)
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and whats wrong with west londoners now :huh:
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if u stick a 2.0 16v into a mk2 it will be quicker than ur 1.8 16v...all day long
my old mk2 16v was a standard model engine wise and put out 150bhp on rollers....and was easily beaten by a mk2 2.0 16v especily at high motorway speeds it pulled away much better but not so much that i could keep up and wip its ass on the twistys as my suspension set up was far better :grin:...but a very good conversion and not to much work as long as you have a 90spec mk2 as wiring is different from early mk2 16v's ...
or as above just get 9a 2.0 bottom end..you will get bit more torque...
but if im honest ive never seen the point with a mk2 16v....i like them way they come....and if you stick a full stainless and 4-branch on a good valver and drill ur air box for better air flow bang a k&n filter in there you will easy get 160bhp ...and a valver with those mods sounds awesome on full pedal to the metal...
(ive just talked my self into getting another valver...god how i miss mine :cry:)
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Hi
I'm looking at doing a 9A conversion as well. I'm curious to learn what the WUR mod is though?? I believe that a new fuel rail is required to convert that KJect to electronic. Does anyone know of an off the shelf rail to suit the 9A or is it a fabrication job?
Thanks
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Have a search of the forum, 9a's and WUR mods have been covered numerous times.
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Ok, I've had a look at 9A & wur mod in the search field and nothing has come up. Do you know where on the forum to look. I'm still new to the forum so other than the search option????. Thanks
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http://www.golfgtiforum.co.uk/index.php?topic=31611.0
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Ok thanks. I have been thinking about converting the Kject to an electronic system of sorts. The Kject seems a bit out dated these days? We didn't see the Kject twin cams in Australia (Digifant 8 valvers only). IS there any advice on converting to electronic injection regards options and fuel rails, wiring etc. I appreciate your replies by the way. :smiley:
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yeah you can use digifant wiring using a bahn brenner or similar fuel rail and a few other tweaks. i personally don't know much about it but i know its possible.
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the k-jet system is generally excellent, I wouldnt convert to digifant from it thats for sure! I'm actually considering converting my digifant 2.0 8v to k-jet, cos I'm sick of the bloody thing not running right :grin:
The main reason for converting a 16v to digifant is for boost applications.
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ABF engine from a Mk3 fits straight into the Mk2 no probs. Strip everything from the MK3 engine and use head and block only and fit with all KR ancilliarys. ABF has different cams than the 9a so dont need to swap cams. ABF is 150bhp in Mk3 so should be a little more using K-Jet. Did it to mine and it feels alot quicker.
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Thanls for the fuel rail tip :smiley: Now it seems that I need to decide between a 9A or ABF into the MK2??..... And the Kject vs hybred electroinc on the fuel system?? :undecided: I started out looking for a good 9A with the KR intake cam and electronic injection conversion but you're saying that the ABF is good for 150bhp as well? Does one of the two engines have any distinct advantages? Also, I am familiar with the Kject from days gone by and yes it was a great system, but does converting and 8 valve Digi fitted vehicle back to Kject require any fuel tank or fuel pick up mods at the rear of the vehicle? If I have to start importing fuel tanks I think I'd rather work with plumbing and wiring on a hybred electronic system on a 9A or ABF. :laugh:
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The way you go depends on several factors, you want to pick the way that is easiest for you.
If your car is a Digifant GTI, you can fit the ABF as is with the oem managment using the digifant pump & lines no bother. If you want to run k-jet, you'll need to fit the k-jet pump & lines. If your car is k-jet but you want to run the oem ABF managment, you need to take the 2 fuel lines to/from the metering head, and chop out the threaded connections where they screw into the fuel lines. This gives you a handy-dandy screw fitting -> push fit fuel line adaptor, the lines from the ABF rail will fit onto these and you can clamp into place easy peasy. (use proper fuel line clips, jubilees are a bad idea)
If your car is CE2 the wiring loom will plug straight in, if not you need to convert to digi 2 or splice the wiring loom together. If you're worried about the wiring side, k-jet is the better way to go as its very simple. Also, the loom & ecu if not included with the engine is expensive to buy, plus post-96 models have an immobilisor which will give you problems unless you get the key that goes with the car.
If your car is a k-jet 16v, swap the basic engine block & head in and swap all the bolt on bits from the old engine, very easy. If its a k-jet 8v, the fuel pump & lines are identical to 16v items, but obviously the managment side is unsuitable for the ABF. The managemnt you choose to install will depend on if you find wiring easy or not :)
9a its a little more simple, run it on the KR K-Jet management, and fit the KR inlet cam :)
Advantage with 9a block is it same height as the KR block, so all MK2 16v 4 branches will fit perfectly, where with ABFs some have clearance issues. A standard MK2 16v downpipe & manifold will fit the ABF perfectly however, and usually perform just as well as most off the shelf 4 branch items.
Edit: Forgot to add, if you go with ABF managment you need to fit a lambda probe to the exhaust system somewhere. The Corrado 9a downpipe should fit and has a lambda bung, you'll just need a cat bypass pipe to mate it to the std 16v zaust system. Or you could get your stock downpipe and get a garage to drill a hole & weld a nut on for you.
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Thanks again for the feedback. Looks like I've tracked down a 9A Kjet from a 92 Passat for the conversion. I've heard the Passats may have used a later version of the Kject (ke?) that wasn't as good as the earlier types :huh: Any thoughts on that anyone?..... My current dead motor is an 8valve digi system so looks like I'll either be using the Kject if the Passat system was any good, or converting to an after market electronic injection of sorts. Has anyone converted from digi to Kject? is it a straight forward fit into the engine bay if the car was originally a digi O.E. fitment, i.e mounting points etc?
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The 9a engines have a slightly more modern version of k-jet, using a knocks sensor & lambda probe. The inlet cam is also milder to stop the k-jet system killing the cam! Fit a MK2 KR inlet cam and run it using KR management, you'll get more power and it'll be much easier to plumb it all in! plus you wont need to worry about putting in a lambda probe. Though if you plan to go aftermarket managemnt in the future, fitting a lambda bung in the exhaust now would be a good idea! The Corrado 9a downpipe should fit and has a lambda bung, you'll just need a cat bypass pipe to mate it to the std 16v zaust system.