Posted January 2, 201015 yr comment_304894 Hi all, I need a little help. I came across some 44 triple carbs and wanted to know if they would be too much for my stock l28 at the moment? I would really like to use them so any help would be greatly appreciated. Link to comment https://www.classiczcars.com/forums/topic/34293-triple-carbs/ Share on other sites More sharing options...
January 2, 201015 yr comment_304896 I had rejetted 40's on my L28 and I was told 44's would be better, just could not find any at the time. I loved the sound and performance difference. With the 40s I didn't even have to change my cam. That may be something you will need to do. Even if you don't use them now, get them if they seem to be a deal. good luck Link to comment https://www.classiczcars.com/forums/topic/34293-triple-carbs/#findComment-304896 Share on other sites More sharing options...
January 2, 201015 yr comment_304898 You can use them on a stock L28. The useable powerband will move up about 1000 rpm and the engine will not run out of breath like it does with 40s. Link to comment https://www.classiczcars.com/forums/topic/34293-triple-carbs/#findComment-304898 Share on other sites More sharing options...
January 2, 201015 yr Author comment_304905 what would be a the right jetting for a stock l28? here is how the carbs are set up 200 Air 150 Fuel and 52.5 Pilot. Venturis are 34MM Link to comment https://www.classiczcars.com/forums/topic/34293-triple-carbs/#findComment-304905 Share on other sites More sharing options...
January 3, 201015 yr comment_304912 Mine were jetted 200 air, 132.5 main, 57.5 pilot, 40 pump; with the same venturi size Link to comment https://www.classiczcars.com/forums/topic/34293-triple-carbs/#findComment-304912 Share on other sites More sharing options...
January 3, 201015 yr comment_304933 I would agree with Curtis' jetting for a stocker. I don't have access to my 44's right now, but the main jet on our 230+ HP Bonneville L28 was 145 or 140 depending on altitude. I think mine were 135's, with either 200 or 220 airs, and 57.5's on idle.Most people add main jet to overcome cruise popping, when in reality up to 3000 rpms and light cruise you're actually running on the idlejets in the Mikuini! 57.5 or 60 is not uncommon when properly set up, with a corresponding decrease in main jet size and great leap in fuel economy. I would routinely run mid 20's on the highway with them, and that rarely varied unless it was a track day (when I could drop into single digits).Likely a set of idles and mains and you will be nuts-on correct for a stocker.With 40's on an L24 I ran mid-high 20's for highway cruise (sticking to 65mph) and on occasion when in states that restricted me through pernicious enforcement presence to 55-60 I could crack 30mpg! Link to comment https://www.classiczcars.com/forums/topic/34293-triple-carbs/#findComment-304933 Share on other sites More sharing options...
January 4, 201015 yr comment_305029 Which would be the better choice in 240z triple carb set ups, Mikuni 44's, or Weber DCOE's? Link to comment https://www.classiczcars.com/forums/topic/34293-triple-carbs/#findComment-305029 Share on other sites More sharing options...
January 4, 201015 yr Author comment_305030 Which would be the better choice in 240z triple carb set ups, Mikuni 44's, or Weber DCOE's? Not sure i would like to know this also... Plus what is a good price for 44 Mikunis? Say if they are "like" new with new manifold and linkage? Link to comment https://www.classiczcars.com/forums/topic/34293-triple-carbs/#findComment-305030 Share on other sites More sharing options...
January 4, 201015 yr comment_305031 $1500 to $1800 I would guess Link to comment https://www.classiczcars.com/forums/topic/34293-triple-carbs/#findComment-305031 Share on other sites More sharing options...
January 5, 201015 yr Author comment_305182 so if you guys could get some like new Mikunis for 1500 or buy new 45 webers what would you go for? Link to comment https://www.classiczcars.com/forums/topic/34293-triple-carbs/#findComment-305182 Share on other sites More sharing options...
January 5, 201015 yr comment_305186 Which would be the better choice in 240z triple carb set ups, Mikuni 44's, or Weber DCOE's?I like Mikunis better. There low speed metering works very nice. Once you set them, you are done. No constant fittling with them. Plus they have a vacuum port for your distributor. Unfortunately Mikuni no longer makes complete carbs for cars, so whatever is already out there is it.BTW, the Mikuni manifold is not ideal so don't buy it if it is a choice. Link to comment https://www.classiczcars.com/forums/topic/34293-triple-carbs/#findComment-305186 Share on other sites More sharing options...
January 5, 201015 yr Author comment_305192 I like Mikunis better. There low speed metering works very nice. Once you set them, you are done. No constant fittling with them. Plus they have a vacuum port for your distributor. Unfortunately Mikuni no longer makes complete carbs for cars, so whatever is already out there is it.BTW, the Mikuni manifold is not ideal so don't buy it if it is a choice. whats wrong with the mikuni manifold? the one im looking at is the short version? Link to comment https://www.classiczcars.com/forums/topic/34293-triple-carbs/#findComment-305192 Share on other sites More sharing options...
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