dylan Posted April 6, 2008 Share Posted April 6, 2008 im after as much info/pictures etc as i can get on the turbo setup using a carb im wanting to do a 1600 crossflow escort motor like this.any help would be much appereciated cheers Quote Link to comment Share on other sites More sharing options...
Testament Posted April 6, 2008 Share Posted April 6, 2008 blowthrough or draw through? theturboforums/turbomustangs is reasonably good for blowthrough info but mostly they go on about US v8 stuff and holley carbs, which is still applicable but you have to interpret it to whatever you have. Quote Link to comment Share on other sites More sharing options...
Brock-Lee Posted April 6, 2008 Share Posted April 6, 2008 I have been planning a blow through turbo setup for the a15 in my datsun. The hardest part would be the exhaust manifold. Then you would need a bigger fuel pump and a rising rate fuel pressure regulator that is for carby's. then you gotta run oil lines from the oil press sender and back into the sump above the oil level in the sump to stop it from frothing. also you wil probly have to run water lines too and from the turbo (some dont, most do). I am goin to blow through a small intercooler to a custom plenum and two su carbs. tuning the carbs and getting them balanced etc will be a lil difficult but it will be a fuckin fun lil project. edit: also you have to lock the dizzy and I think you are supposed to remove vaccum advance Quote Link to comment Share on other sites More sharing options...
OSC Posted April 7, 2008 Share Posted April 7, 2008 just run a draw through setup with a 2inch su carb on like a standy bfmr turbo or something. will be all good and run a oil line to it water lines are overrated. just make a crossover pipe. so would be mean. Quote Link to comment Share on other sites More sharing options...
dylan Posted April 7, 2008 Author Share Posted April 7, 2008 sorry im really a noob on turbos whats the difference between draw through an blow through? Quote Link to comment Share on other sites More sharing options...
Brock-Lee Posted April 7, 2008 Share Posted April 7, 2008 draw through it goes carb then turbo then engine. so you are sucking fuel through the carb. you have to have a carbon sealed turbo and you cant runa blow off valve or intercooler. blow through goes turbo carb engine. you just blow through the carbs. suck/drawthrough is very easy to do and can give very good results on low boost. althogh with out an intercooler you can run into detonation problems quite fast. you can build a real easy water injection setup so you cool intake charge and it will go harder for longer Quote Link to comment Share on other sites More sharing options...
Burntrubber Posted April 7, 2008 Share Posted April 7, 2008 Heres a link to my old Gemini was a blow thru worked mint did it all myself. viewtopic.php?f=1&t=5073 Quote Link to comment Share on other sites More sharing options...
Testament Posted April 7, 2008 Share Posted April 7, 2008 sorry im really a noob on turbos whats the difference between draw through an blow through? First thing then - go read a bunch of stuff and get more clued up. Quote Link to comment Share on other sites More sharing options...
kyteler Posted April 7, 2008 Share Posted April 7, 2008 Another point to note is most/all the people on here who have done a Carb Turbo have later wish they hadn't bothered and had gone EFi right from the start. There's always compromises with a Carb Turbo setup and generally it's not really considered worth the bother. Quote Link to comment Share on other sites More sharing options...
Burntrubber Posted April 7, 2008 Share Posted April 7, 2008 Yip I've gone EFI although only cause its better not because I hated the carb setup. I think most of the problems that people have is finding someone to tune it. I managed to fluke jetting mine right so I was happy. Quote Link to comment Share on other sites More sharing options...
dylan Posted April 7, 2008 Author Share Posted April 7, 2008 Yip I've gone EFI although only cause its better not because I hated the carb setup. I think most of the problems that people have is finding someone to tune it. I managed to fluke jetting mine right so I was happy. you used the 32/36 webber didnt you? how did you go about doing the jets on it cheeRS Quote Link to comment Share on other sites More sharing options...
RUNAMUCK Posted April 7, 2008 Share Posted April 7, 2008 Topgear at http://www.datsun1200.com, has made 103BHP with a near stock Datsun A12 using a non carbon sealed turbo and a stromberg carb running drawthrough. There is a shit load of info there about it. Quote Link to comment Share on other sites More sharing options...
Burntrubber Posted April 7, 2008 Share Posted April 7, 2008 Just messed with them till it drove smooth. I have heaps of carbs ranging from 1300gt to xf falcon ones so I had quite a selection of jets. I used a 1.8 main in the primary and a 2.2 main in the secondary. Cant remember the air correctors I think it was 1.6 primary and 1.8 secondary. Quote Link to comment Share on other sites More sharing options...
HRT Posted April 12, 2008 Share Posted April 12, 2008 Another point to note is most/all the people on here who have done a Carb Turbo have later wish they hadn't bothered and had gone EFi right from the start. Not really, if you do the setup right then there is no reason to go EFI at all. As above though, read a whole lot more on the information thats out there rather than just jumping in and assuming it'll be easy. There is a bit of playing around with float vents and things like that to keep your fueling right but a decent reliable setup is very achieveable. I used my 5K-T as a daily for a year with no troubles Quote Link to comment Share on other sites More sharing options...
OSC Posted April 13, 2008 Share Posted April 13, 2008 if you're a turbo noob just run a draw through carby turbo setup with a 2 inch su. will be all good. once you've decided its not enough grunt just go grab a mitsi tbi setup and run that intercooled it would be much easier to just make a adapter plate then to fuck around with injector bosses and new manifolds and shit. Quote Link to comment Share on other sites More sharing options...
Vai-Man Posted April 13, 2008 Share Posted April 13, 2008 if you're a turbo noob just run a draw through carby turbo setup with a 2 inch su. will be all good. once you've decided its not enough grunt just go grab a mitsi tbi setup and run that intercooled it would be much easier to just make a adapter plate then to fuck around with injector bosses and new manifolds and shit. Im intreged by the whole tbi adapter etc? any more info would it work with say sr18di or a falcon tb? but anyways back to the topic at hand read a whold bunch more if your gona attempt this yourself, handy with a welder? search the internets lol turbosport has quite a few carb turbo setups, im assuming if you run a webber 32/36 you could adjust it like primary for idle etc and use bigger jets on the secondary? Quote Link to comment Share on other sites More sharing options...
OSC Posted April 14, 2008 Share Posted April 14, 2008 cant see why it wouldnt work with falcon etc. but for simple as install id just use a full starion loom and sensors and ecu. starion turbo etc. / sigma / 2l turbo ex lancer. get fuels old setup when he goes twincam. Quote Link to comment Share on other sites More sharing options...
Burntrubber Posted April 14, 2008 Share Posted April 14, 2008 im assuming if you run a webber 32/36 you could adjust it like primary for idle etc and use bigger jets on the secondary? In theory that's what you would think but a turbo engine still makes boost at low throttle possitions so the primary needs to be able to keep up. A blow through carbi turbo will be a bit rich off boost I found with mine that it liked to foul the plugs on long open road trips with a lot of cruising. That could be stopped by boosting for a bit every few kms though. Quote Link to comment Share on other sites More sharing options...
RT Posted April 14, 2008 Share Posted April 14, 2008 Another point to note is most/all the people on here who have done a Carb Turbo have later wish they hadn't bothered and had gone EFi right from the start. There's always compromises with a Carb Turbo setup and generally it's not really considered worth the bother. prolly if you did a search you would find me on every thread about carb turbo engines and telling them to efi it first.. lol Not gonna this time! Go man blow through carb ftw /nah if ya gonna carb turbo, then do it cheap and nasty with a suck through setup. Hoon it around for a bit then work out how to EFi it. Quote Link to comment Share on other sites More sharing options...
forced Posted April 14, 2008 Share Posted April 14, 2008 A blow through carb setup is only good for low boost. Suck through is good for 15 pounds. Suck through FTW. If it's an old car I wouldn't even bother with EFI, these days LPG makes much more sense. Quote Link to comment Share on other sites More sharing options...
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