Redwarf Posted July 14, 2007 Report Share Posted July 14, 2007 Dude, if you set them up right the first time, you DON'T have to keep tuning them! My engines go on the dyno once a year, and most of the time we don't touch them. And there's more than one person in here who can give you a reference for what they go like. Quote Link to comment Share on other sites More sharing options...
andro0o Posted July 14, 2007 Report Share Posted July 14, 2007 evidence is always better than hearsay. if it works for you many of you, maybe my mate was just wrong in his ways. so would you say it was just the initial tune on my friends car..? it couldnt handle cold starts basically it would just send it out of tune? Quote Link to comment Share on other sites More sharing options...
Redwarf Posted July 15, 2007 Report Share Posted July 15, 2007 Did he have it dyno'd? The thing with Weber's is that although you can give them a vague tune on the bench, that will allow you to start and drive around, unless you give them a run-up with all the gadgets attached, you're only kidding yourself about the tune. A good set-up by someone competent (as opposed to many establishmens these days who if it doesn't have a computer attached, they start spinning in circles, flapping like a chook), and you won't have to touch it again. My cars never have a problem starting, be it 40 degrees, or as happened last year, -8 degrees. It's one of those things that if you do it properly, spend the money, you'll be rewarded by endless amounts of induction noise, and spend your time looking for tunnels to drive through. :) Quote Link to comment Share on other sites More sharing options...
Clapped out Posted July 15, 2007 Report Share Posted July 15, 2007 (edited) Sorry guys but I'm going to have to agree with redwarf on this one, i too have a rolla with twin 45mm webers, the only money i have ever spent on these carbs was "the initial rebuild and tune"!it cost a lot of money first up, but sooooo worth it. i have never ever had a problem since, never had to get them re-tuned, never a problem on cold starts, the thing gets revd to 8 thousand revs every time i drive it! Yet still not a prob with the carbs! Edited July 15, 2007 by phatke30 Quote Link to comment Share on other sites More sharing options...
bullet79 Posted July 15, 2007 Report Share Posted July 15, 2007 what figure (hp) normally a set of webber carbs can produce..?? with stock internal 4AGE (86).. seriously need to know.. :evil: Quote Link to comment Share on other sites More sharing options...
Redwarf Posted July 15, 2007 Report Share Posted July 15, 2007 what figure (hp) normally a set of webber carbs can produce..?? with stock internal 4AGE (86).. seriously need to know.. :evil: Â Â Without wanting to sound smart, whatever you can squeeze out of them, and how talented the bloke tuning them is, what timing you're prepared to run... etc. Quote Link to comment Share on other sites More sharing options...
bullet79 Posted July 15, 2007 Report Share Posted July 15, 2007 so can it go up to 200hp then..?? Quote Link to comment Share on other sites More sharing options...
Doogs Posted July 16, 2007 Report Share Posted July 16, 2007 those weber sidedrafts are great carbs, brockies XU-1 was running triple webers, but only from 3 throats, one throat of each was blocked off  they can flow a hell of a lot of fuel ! Quote Link to comment Share on other sites More sharing options...
bullet79 Posted July 16, 2007 Report Share Posted July 16, 2007 can carbie 4AG motor use a waste-spark (4 coil) ignition setup.?? -just wondering... Â Â Â love to get my hands on these 'Keihin' carbs Quote Link to comment Share on other sites More sharing options...
andro0o Posted July 17, 2007 Report Share Posted July 17, 2007 theyre supposed to be fuking awesome... though never seen them for sale anywhere.... Quote Link to comment Share on other sites More sharing options...
beerhead Posted July 17, 2007 Report Share Posted July 17, 2007 I know someone who's sucessfully tuned a set of Keihan moto carbs on a 4AGE. He has the advantage of working on lotus sports cars that run similar carbs, using the lotus visualisation software he got them running perfect. On a dyno this thing has hit 10,000rpm pulling around the 170bhp mark from memory. Â The igniton side of things is more of a challenge. I'd personally wait for a cheap crane ignition to show up on ebay, all the carby distributors people graft on work, but I don't think mechanical or vaccum advance cuts it with a motor like a 4AGE. Quote Link to comment Share on other sites More sharing options...
bullet79 Posted July 17, 2007 Report Share Posted July 17, 2007 (edited) how bout these 4AG setup..?? Mikuni carbs and DLi-waste sparks.. how.. it posible to drive the IG module with carbies..?? note; the dizzy still there ( i think for 1st triggering..) Edited July 17, 2007 by bullet79 Quote Link to comment Share on other sites More sharing options...
beerhead Posted July 18, 2007 Report Share Posted July 18, 2007 It wouldn't be hard to make a custom circuit that would detect the pulse from a standard dizzy or (preferably) a crane module that would alternate the signal between two sets of coils for wasted spark. You could even go to COP coils. You'd use EFI igniters to fire the coils. Â I wonder how much interest there'd be on a nice module for running carbs on old rigs with individual coils, it quite simple to build. If there was some real interest on a module I'd make a fully programmable one that has adjustable advance / retard. Quote Link to comment Share on other sites More sharing options...
bullet79 Posted July 20, 2007 Report Share Posted July 20, 2007 iv red on toyota related sites, most of then got confused with the carbs dli/cop setups.. som sezs ignition only ecu,som sezs MSD's.. then u came up with custom works... mannnn..beerhead.. izzit too easy to do...?? lord giime a sign...!!! Quote Link to comment Share on other sites More sharing options...
Guest Sbox Posted July 20, 2007 Report Share Posted July 20, 2007 (edited) Deleted Edited May 24, 2008 by Sbox Quote Link to comment Share on other sites More sharing options...
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