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Title: 30/32 DHTA Rebuild and jetting question Post by: aldad138 on October 12, 2015, 06:12:50 PM Hello All- My 79 is closer to hitting the road. I want to rebuild it and wonder if any of you have jetting ideas. There are so many out there, and I could use advice on if there are optimal jetting sizes or to just go with the stock ones already in it???
IT is the 30/32 DHTA in my Coupe. Alex Title: Re: 30/32 DHTA Rebuild and jetting question Post by: HFStuart on October 12, 2015, 09:56:10 PM Unless you're planning to junk the emissions kit and bring it up to Euro spec I'd have to say go with the standard ones.
Oddly the Haynes manual doesn't list a DHTA fitted to any Betas - the US versions shows as 32 DATRA. That's not to say they weren't fitted though Title: Re: 30/32 DHTA Rebuild and jetting question Post by: aldad138 on October 12, 2015, 11:32:26 PM Emissions systems are pulled out, even before I got her. Some of it piecemeal, but all in all the motor runs strong enough. Not sure how close to Euro Spec I can get her, but that is my thoughts for now. FI later on down the road. I figured if we are going through the carb, might upgrade if it will be good for driveability. I thought going a bit bigger, nothing drastic.
It is definitely the 30/32 DHTA, stamped on the carb. I also thought it odd...not in the Haynes I have, at all. Thanks...Alex Title: Re: 30/32 DHTA Rebuild and jetting question Post by: HFStuart on October 13, 2015, 09:11:51 AM Upgrading to a 34 DATR or DMTR might be worthwhile then.
It might be worth asking on the guy-croft forum about jetting - they'll want to know all the details of the engine first though. FI will make the pickup smoother and probably give you better mileage - it won't always give more power. Title: Re: 30/32 DHTA Rebuild and jetting question Post by: aldad138 on October 26, 2015, 06:17:29 PM Thanks for the advice, Stuart! So, we are having significant issues with the 30/32 DHTA and the accompanying fuel system. I have a line on a 34 DAT (not DATR or DATRA) for a decent price to replace the old DHTA. I am a bit behind the 8 ball on what the DAT/DATR/DATRA differences are to know if this is a good idea or not. Any help?
Alex |