mikec Posted March 22, 2013 Share Posted March 22, 2013 Just after some feedback regards to the DIY multipoint kits, I've fitted (quite badly tbh) a single point kit in the past and had no problems, but I want to fit a multipoint kit to the new engine, just wondering how easy the installation and tuning were. Will probably get a kit from tinley. Quote Link to comment Share on other sites More sharing options...
elbekko Posted March 23, 2013 Share Posted March 23, 2013 Installation is pretty easy, tuning I have yet to find out, but seems to be fairly straightforward. Quote Link to comment Share on other sites More sharing options...
Bowie69 Posted March 23, 2013 Share Posted March 23, 2013 Very similar, only difference really is drilling/tapping the inlet manifold, otherwise lay the loom in place, bolt a few bits down and off you go. Tuning is normally pretty automatic, it uses the petrol ECU injector opening times plus a calculated amount from an automated tuning procedure to work out how long the LPG injectors should be open. You don't need to connect the lambda probe normally to the LPG system, but it does help in diagnostics. After then you may need to tune the idle areas manually to get pickup and a smooth idle right, but very easy really. Quote Link to comment Share on other sites More sharing options...
mikec Posted March 23, 2013 Author Share Posted March 23, 2013 What make systems did you guys fit? Quote Link to comment Share on other sites More sharing options...
elbekko Posted March 23, 2013 Share Posted March 23, 2013 Originally it was a Bigas SGIS-N system, but it's now running an AEB ECU with HANA injectors. Quote Link to comment Share on other sites More sharing options...
mikec Posted March 23, 2013 Author Share Posted March 23, 2013 Isn't the bigas an aeb based ecu anyway? We're did you get that second kit from and why? Quote Link to comment Share on other sites More sharing options...
elbekko Posted March 23, 2013 Share Posted March 23, 2013 Yes, it's all pretty much the same, with very minor software differences. I got a new ECU as the old one died while they were trying to tune it, just stopped responding to anything. I got the injectors and rails from https://www.lpgshop.co.uk/, very helpful guys and can't find it much cheaper. In the end, all of this probably wasn't necessary, as the problems came from the injectors being in the wrong place. The Thor upper manifold has its centre intake tubes crossed, which I only discovered after drilling and tapping a second manifold to get tubes close to the valves (a recommendation from the LPG specialists as they couldn't think of what else the problem could be). I bought the car with the injectors plumbed incorrectly, so didn't give it a second thought when replacing the injectors... It's running fine now, just need to do some tuning. Another upside of the new AEB ECU is that it has an OBD connection, so it can read the petrol ECU's fuel trims to run closed-loopish. Quote Link to comment Share on other sites More sharing options...
mikec Posted March 23, 2013 Author Share Posted March 23, 2013 Mine will be going on with Megasquirt so presumably won't do the obd thing as there's no obd plug. Funnily I've just found the lpg shop they do omvl dream kit for good money. They also do a prins kit but that seems a little dear. What was after sales like from lpg shop? Quote Link to comment Share on other sites More sharing options...
elbekko Posted March 24, 2013 Share Posted March 24, 2013 Very good, the guys seem to know their stuff and are happy to help. Quote Link to comment Share on other sites More sharing options...
mikec Posted March 24, 2013 Author Share Posted March 24, 2013 Just found a guy who'll fit the a multipoint front end for just under 700. So may well go with that Quote Link to comment Share on other sites More sharing options...
Bowie69 Posted March 24, 2013 Share Posted March 24, 2013 So about £1500 all in, honestly, it's not that hard Backend actually takes a while too, cutting body work potentially, mounting the tank securely, all takes time. Quote Link to comment Share on other sites More sharing options...
mikec Posted March 24, 2013 Author Share Posted March 24, 2013 So about £1500 all in, honestly, it's not that hard Backend actually takes a while too, cutting body work potentially, mounting the tank securely, all takes time. I've already got the tank in, it was single point on the old engine. That price does include a new tank-vap pipe too. Think the exact spec was omvl vap, reg fast injectors and king ecu. If it was just fitting it it wouldn't be a problem, but if its anything like my ms to get going right ill still be doing it next year :0 Quote Link to comment Share on other sites More sharing options...
elbekko Posted March 24, 2013 Share Posted March 24, 2013 A multipoint system on MS should be quite nice to tune, set the LPG map to whatever gets the injectors in the right range, then tune with MS on a separate fuel table. Quote Link to comment Share on other sites More sharing options...
task Posted March 25, 2013 Share Posted March 25, 2013 I'm actually changing the LPG kit on my classic this coming weekend, I shall attempt to take some photos and do a little write-up if you think you'd find it of use? Quote Link to comment Share on other sites More sharing options...
mikec Posted March 26, 2013 Author Share Posted March 26, 2013 I'm actually changing the LPG kit on my classic this coming weekend, I shall attempt to take some photos and do a little write-up if you think you'd find it of use? What kit are you fitting mate? Quote Link to comment Share on other sites More sharing options...
task Posted March 26, 2013 Share Posted March 26, 2013 Bigas SGIS Kit. So, Mulitpoint sequential. Quote Link to comment Share on other sites More sharing options...
mikec Posted March 26, 2013 Author Share Posted March 26, 2013 Bigas SGIS Kit.So, Mulitpoint sequential. From tinley presumably? How do the instructions for fitting and tuning sound? Anything sound confusing/complicated? Quote Link to comment Share on other sites More sharing options...
task Posted March 26, 2013 Share Posted March 26, 2013 Yes, from TT. It all looks fairly straight forwards, it's replacing a system that's already there. I'll get a few photos and update the CSK thread I have going when I do the swap. Quote Link to comment Share on other sites More sharing options...
mikec Posted March 26, 2013 Author Share Posted March 26, 2013 Yeah that'd be great. I'm gonna make a decision next week about what to do with mine Quote Link to comment Share on other sites More sharing options...
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