mk2 Posted February 1, 2018 Report Share Posted February 1, 2018 Quick one for you pros out there... I've been offered an AKU 1.7 engine (my lupo has AHU 1.7). they look the same but the AKU has a 1.9 on the casting... Did Vdub use 1.9 blocks and just fit them with 1.7 cranks? I thought all AKU's are 1.9. No question. Anyone heard of an AKU being factory fitted to a 1.7 SDI lupo? Quote Link to comment Share on other sites More sharing options...
Andrew1971 Posted February 1, 2018 Report Share Posted February 1, 2018 Yes my lupo is an SDI 1.7 the engine number an the log book say's AKU 1700cc. I doubt it's had an change it's only done 53000. Are you sure your's has not had an engine change. Andrew Quote Link to comment Share on other sites More sharing options...
lupogtiboy Posted February 1, 2018 Report Share Posted February 1, 2018 (edited) AHU isn't fitted to a Lupo as its a 1.9 TDI engine AKU is a 1.7 SDi engine The 1.9 SDi engine codes are ALH and AYQ as found in Polo-style caddy vans Edited February 1, 2018 by lupogtiboy Quote Link to comment Share on other sites More sharing options...
mk2 Posted February 1, 2018 Author Report Share Posted February 1, 2018 Solved... I had an interesting chat with local Vdub spares dept (usually the font of good general knowledge!). My 2003 car does have an AHU which is 1.7 original from factory. Came with the car. The engine I'm thinking of gettingis indeed a 1.9 block, and like I suspected fitted with a different crank and pistons, to give you 1.7. The pics I've seen of a few AKU engines do look exactly the same as my engine. Confused? You bet I am. It seems that as VW were getting to the end of the Lupo SDI run, they were running out of engine blocks, so they used mix and match off the shelves. Apparently quite common towards the end. I have seen a really early genuine original SDI a year ago with a CABLE throttle and linkage on the pump- like mk3s.... Can't remember the engine code, but I'm sure it wasn't AKU or AHU. It was cream in colour, that's all I know.... All this does tell me something though. You could completely legally strip an AKU block, bung in regular 1.9 crank and pistons and end up with a 1.9, registered with DVLA as 1.7. The engine number wouldn't change. Might need to change one or two other bits, but hey it'd be different. Everything else could stay the same. But you'd need a remap to take advantage of the extra capacity. Quote Link to comment Share on other sites More sharing options...
lupogtiboy Posted February 2, 2018 Report Share Posted February 2, 2018 Completely contradicts what ETKA says then! Quote Link to comment Share on other sites More sharing options...
mk2 Posted February 2, 2018 Author Report Share Posted February 2, 2018 (edited) 13 hours ago, lupogtiboy said: Completely contradicts what ETKA says then! Yeah! I never thought much about it till I was offered the AKU lump, and when I looked closely it clearly says 1.9... that's not a photoshop pic, it's real. I wonder if anyone out there has a lump out of their car where you can read that it says 1.7 (on an AKU). Interesting.... Legally, manufacturers are meant to have the capacity stamped or cast into the block. Or.... is the 1.7 SDI actually a 1.9.....?!? If only i had an engine in pieces, i'd do the 'burette column' capacity test just to see. If vdub BS about their emissions, it's possible they bs about engine capacity! You can limit the power purely by the amount of diesel you inject. Two engine versions, but they are in fact the same, power limit controlled by the ECU. I mean who would ever measure the capacity? What the emission gas is made up of perhaps, but not the swept volume of air that goes in. Hmmmm. Edited February 2, 2018 by mk2 Missing word Quote Link to comment Share on other sites More sharing options...
Sausage Posted February 2, 2018 Report Share Posted February 2, 2018 Same gearbox patterns? Quote Link to comment Share on other sites More sharing options...
Rich Posted February 2, 2018 Report Share Posted February 2, 2018 they use the same strange box. bore is the same, gotta be stroke if anything? Quote Link to comment Share on other sites More sharing options...
lupo 1.7sdi Posted February 3, 2018 Report Share Posted February 3, 2018 SSP_201_Lupo_Design_&_Function.pdf Quote Link to comment Share on other sites More sharing options...
mk2 Posted February 3, 2018 Author Report Share Posted February 3, 2018 There's no intermediate shaft in the SDI engine... at least i've never seen one! Quote Link to comment Share on other sites More sharing options...
Sausage Posted February 3, 2018 Report Share Posted February 3, 2018 so 1.9 turbo then? Shame about the gearboxes on these... Quote Link to comment Share on other sites More sharing options...
mk2 Posted February 3, 2018 Author Report Share Posted February 3, 2018 I wonder how long an 085 rebuilt box would last with a tdi.... now that would be a quick & easy project. Same block, with turbine. Bolt on box. Remap ecu. Unless your name is sausage and you know how to unlock the tdi maps in the sdi ecu....! Drive. SDI economy with gti performance. Quote Link to comment Share on other sites More sharing options...
Sausage Posted February 3, 2018 Report Share Posted February 3, 2018 (edited) flash a suitable tdi map to your ecu, or do file compare between tdi and sdi map and make the changes I guess. you would need to keep the torque curve well under control for the gearbox for sure. Remap to 130hp. Edited February 3, 2018 by Sausage Quote Link to comment Share on other sites More sharing options...
mk2 Posted February 3, 2018 Author Report Share Posted February 3, 2018 (edited) I'd reckon about £200 would do it... Edited February 3, 2018 by mk2 Quote Link to comment Share on other sites More sharing options...
Rich Posted February 3, 2018 Report Share Posted February 3, 2018 £200 would buy a pd plus all the crap from me. Quote Link to comment Share on other sites More sharing options...
mk2 Posted February 3, 2018 Author Report Share Posted February 3, 2018 5 minutes ago, Rich said: £200 would buy a pd plus all the crap from me. I'd love to see a pic of your workshop/yard and all the piles of stuff you're trying to offload....! Is the pd the same block as the standard tdi one? But thinking about the amount of effort- by just adding a turbine to a stock 1.7 (1.9) with existing loom/ecu etc and a remap, you could double your power for peanuts. It's almost like an afternoon's project! Quote Link to comment Share on other sites More sharing options...
Rich Posted February 3, 2018 Report Share Posted February 3, 2018 you need to make it walk properly before you make it run.... Quote Link to comment Share on other sites More sharing options...
Rich Posted February 3, 2018 Report Share Posted February 3, 2018 also, how about a nice mk2? earliest known example... 1 Quote Link to comment Share on other sites More sharing options...
Skezza Posted February 3, 2018 Report Share Posted February 3, 2018 How much the mk2 @Rich ? Quote Link to comment Share on other sites More sharing options...
Rich Posted February 3, 2018 Report Share Posted February 3, 2018 I made a thread on the mk2 oc to value it but nobody has replied. Quote Link to comment Share on other sites More sharing options...
Rich Posted February 3, 2018 Report Share Posted February 3, 2018 http://www.vwgolfmk2.co.uk/forum/viewtopic.php?p=351572#p351572 Quote Link to comment Share on other sites More sharing options...
Skezza Posted February 3, 2018 Report Share Posted February 3, 2018 How many coins do you want for it? Quote Link to comment Share on other sites More sharing options...
Rich Posted February 3, 2018 Report Share Posted February 3, 2018 how much do you want to pay and what would you do with it? Quote Link to comment Share on other sites More sharing options...
lupo 1.7sdi Posted February 3, 2018 Report Share Posted February 3, 2018 18 hours ago, mk2 said: There's no intermediate shaft in the SDI engine... at least i've never seen one! I don't think so. You can not ignore it when installing toothed belt .It is the shaft that drives the oil pump. Quote Link to comment Share on other sites More sharing options...
Sausage Posted February 3, 2018 Report Share Posted February 3, 2018 @Rich, what's the mk1? Quote Link to comment Share on other sites More sharing options...
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