do weber carbs make a big improvement on ea81s?is it worth the money?would i need an adapter, or does it come with the right one from weber?i have never used one, but i am considering it for the brat.in what areas is there a power increase?

-Jon

On my buddy's 82 brat (1800cc) and another friend's 80 brat (1600cc) we noticed a big increase in low end power. They drive the car everyday so they can give you more information.

do weber carbs make a big improvement on ea81s?is it worth the money?would i need an adapter, or does it come with the right one from weber?i have never used one, but i am considering it for the brat.in what areas is there a power increase?

-Jon

 

dont have experience with them myself but i know 2 people who have them, one of them installed his, ask tomrhere and 86suabr and they can tell you about the weber!

Put a Weber on the '84 Auto BRAT I had, also swapped the intake over to the EA-82 type, as it has larger port opening for the carb. Being this BRAT has an Auto tranny, it is a dog compared to a Manual, but it did improve the performance of it greatly, fuel mileage went up also. My vote goes to DO IT!

do weber carbs make a big improvement on ea81s?is it worth the money?would i need an adapter, or does it come with the right one from weber?i have never used one, but i am considering it for the brat.in what areas is there a power increase?

-Jon

 

The adaptor is needed and is purchased separately. Definitely find an EA82 intake manifold, and order the Weber adaptor for it. Go to www.webercarburetor.com (Pierce Manifolds) to order the adaptor, and the carb if you're buying new. The information about Subaru kits is a little misleading. I think you would need the K733 kit. Look under "Manifolds and Conversion Kits", then under Subaru. They seem to have redone their EA82 manifold adaptor; I believe the one you would need is the 99004.300, but confirm this with them.

 

If you get a used carb off of a non-Subaru, there is jetting info available on the board. Do an advanced search on "weber jetting", for example. Especially see my posting on "Weber jetting at high altitudes". I think I finally went with a 135 main jet, for gas mileage, but all the other jetting is the same as listed there. This jetting will get you very close or spot-on. Also, if you buy a new Weber, pull out all the jets and write down what they are, and post them on the board for others' benefit.