Txakura Posted August 17, 2010 Share Posted August 17, 2010 Holy hell that's cool. Quote Link to comment Share on other sites More sharing options...
hatchsub Posted August 17, 2010 Share Posted August 17, 2010 back to life! Now, has anyone ever done this or heard of this? Twin webers on a dual carb EA-81. I found another one at a wrecking yard today with a subaru adapter! So either i am going to slap this weber on the motor currently in my wagon, or i am going to have a dual weber EA-81. MUWAHAHAHAHAHAHA!! There are a couple of issues you will most likely run into trying this. One i think the carbs are going to be too close together if you are using the traditional 32/36. The other is tuning. You are going to basically have to start from scratch as the tuning for a single weber is going to be completely off if you do duals on the same motor. Finding the right jets and getting all the transitions right is going to be a pain. If you can get them to bolt down next to eachother then your halfway there. I would recommend getting a wideband honestly and tune it using that since there will be a lot more to mess with with two webers. Quote Link to comment Share on other sites More sharing options...
coxy Posted August 21, 2010 Share Posted August 21, 2010 Why not just Overhaul those dual Hitachi's thats what I plan with My Dual carb EA81. These are a full mechanical setup no vacuum operated secondary and already factory jetted so why would you change them. Yes with a US spec Polution Vac secondary Hitachi or Worse then a Weber conversion makes sense,however with these carbs being a specific performance model made to suit the Engine it doesn't strike me as smart to throw them away. When you fit this setup on a normal EA81 then the cam and porting differences will require some jetting changes. People out here in Australia have had both the Dual carb setup on a standard EA81 and unfortunately for them A dual Carb engine without the Manifold and carbs. Consensus is that the performance improvement from either option is similar so when you have both together it is a major upgrade,after all whether it is the 108HP version or the Homologation special 120 HP version both well and truly exceed the Turbo EA81 let alone a stocker or the USDM model. Quote Link to comment Share on other sites More sharing options...
Markus56 Posted August 25, 2010 Author Share Posted August 25, 2010 I need a throttle linkage to hook the carbs together. My engine didnt come with one. So either i need to jimmy something or i need to find a supplier of EA-81 dual carb parts (LOL) Quote Link to comment Share on other sites More sharing options...
moosens Posted August 25, 2010 Share Posted August 25, 2010 Aircraft guys. EAA is it? http://www.eaa.org/ Looks like you need to join to find Classifieds. Good luck. I'm sure there's a couple other places you might do well hunting at. Quote Link to comment Share on other sites More sharing options...
Markus56 Posted August 25, 2010 Author Share Posted August 25, 2010 I was thinking about pulling the throttles off of regular carbs and rigging a cable system. might work, or there might not be enough room... Quote Link to comment Share on other sites More sharing options...
hatchsub Posted August 25, 2010 Share Posted August 25, 2010 Factory linkage was a bar so that the cable would go to one side and open both carbs the same amount at the same time. Dual cables? I dont think that will work but prove me wrong! Quote Link to comment Share on other sites More sharing options...
84gl Posted August 25, 2010 Share Posted August 25, 2010 (edited) The factory cable had a bar at the end I have one I'll try to get pics for you If I can find It It may be a few days (in texas right now on a job) I'll post them when I get back home Edited August 25, 2010 by 84gl Quote Link to comment Share on other sites More sharing options...
Psyko Posted August 26, 2010 Share Posted August 26, 2010 Not sure if they'll be helpful, but these are the best pictures I have of the stock throttle and choke setup. I can't take new ones because I just sent my engine off to storage. Quote Link to comment Share on other sites More sharing options...
hatchsub Posted August 26, 2010 Share Posted August 26, 2010 I can't take new ones because I just sent my engine off to storage. If by storage u mean my house then thank you Quote Link to comment Share on other sites More sharing options...
Psyko Posted August 26, 2010 Share Posted August 26, 2010 If by storage u mean my house then thank you Well, it did go east, but not that far. Haha Quote Link to comment Share on other sites More sharing options...
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