The elusive twin Carb on ebay

Backyard_Brumby · Post by **Backyard_Brumby** » Thu Jul 28, 2011 10:19 pm

http://www.ebay.com.au/itm/Subaru-EA81- ... 500wt_1156

Just saw this on ebay, it will be interesting to see how much it goes for. I can't imagine there would be too many of these popping up

Post by **TOONGA** » Thu Jul 28, 2011 10:30 pm

those engines are screamers

it will be interesting to see how much the carbies go for

TOONGA

sven '2' · Post by **sven '2'** » Thu Jul 28, 2011 10:33 pm

TOONGA wrote:those engines are screamers

it will be interesting to see how much they go for

TOONGA

The ports and compression are better than the std EA81 I think.

Best to buy the whole package and give it to Silverbullet for some love!

YouTube · Post by **El_Freddo** » Thu Jul 28, 2011 10:43 pm

Wow, I didn't think these would create such a stir - this is now the third post about these carbies, one on each ebay thread and now this discussion.

If you read the questions he's offering the original long block for $100!! Some on there are asking about the heads and obviously don't know that the difference in the cam as I believe that the exhaust and inlet ports are the other way around to the standard EA81s... Correct?

I'd love to grab these and the engine for Sunnie the Brumby, but I just can't justify it at the moment, plus I'd have to get the owner's permission...

Cheers

Bennie

Post by **TOONGA** » Thu Jul 28, 2011 10:52 pm

thats correct Bennie the heads are different, the inlet valves and exhaust valves are reversed, they are bigger (mine were) the crank is different, the conrods are different, the pistons are different, the cam is different, and I believe the rocker gear and pushrods are different as well.

it is and EA81 but it is different

a very nice 100km/h in second gear different

TOONGA

YouTube · Post by **El_Freddo** » Thu Jul 28, 2011 10:55 pm

TOONGA wrote:thats correct Bennie the heads are different, the inlet valves and exhaust valves are reversed, they are bigger (mine were) the crank is different, the conrods are different, the pistons are different, the cam is different, and I believe the rocker gear and pushrods are different as well.

it is and EA81 but it is different

a very nice 100km/h in second gear different

That's what I thought.

Now the subaru hoarder is coming out in me

Not good when you can't afford it!

Cheers

Bennie

littlewhiteute · Post by **littlewhiteute** » Fri Jul 29, 2011 6:21 am

I wonder who the seller is?

Lives just around the corner from me.

Matt · Post by **Matt** » Fri Jul 29, 2011 7:59 am

Second that i have the Heads on Bianca and yes 100km in second is achieveable, lol! Basically the valve are reversed the rocker gear different the cam is different... Dont know about the rods and then that but. Either way mine has been pushed up around the 8000 RPM and still pulling, thats when i got scared..... lol Very handy when some commo is trying to race you less gear changes. :P

steptoe · Post by **steptoe** » Fri Jul 29, 2011 8:36 am

EIGHT GRAND REVS!! Normal EA's rev like an old (standard) Falcon six and my 81's never really liked much more than five grand....
Their current price is $255 and need carby kits before use. I paid same money ten years ago or more and also needed kitting if that is an indicator to anyone of them holding value

Green_eyed_liberty · Post by **Green_eyed_liberty** » Fri Jul 29, 2011 7:00 pm

so obviously cant just buy and stick on. will need the twin carby engine

littlewhiteute · Post by **littlewhiteute** » Fri Jul 29, 2011 7:21 pm

Green_eyed_liberty wrote:so obviously cant just buy and stick on. will need the twin carby engine

No, you don't the twin carb engine, they will bolt up to normal single carb EA81 heads.
The spacing from head to head inlet ports is the same.

Backyard_Brumby · Post by **Backyard_Brumby** » Fri Jul 29, 2011 7:24 pm

Gary I thought it might have been you. I believe that this bloke had a lot of brumby items for sale. Yet I haven't seen any old subies driving around

Silverbullet · Post by **Silverbullet** » Fri Jul 29, 2011 7:30 pm

Matt wrote:Second that i have the Heads on Bianca and yes 100km in second is achieveable, lol! Basically the valve are reversed the rocker gear different the cam is different... Dont know about the rods and then that but. Either way mine has been pushed up around the 8000 RPM and still pulling, thats when i got scared..... lol Very handy when some commo is trying to race you less gear changes. :P

That sounds so awesome

Wish I could experience that one day...but I'm not about to fork out for this ebay manifold and try and find the bits for a twin carb engine...AND build it, had enough of that for a while

Oh and it's in QLD

Post by **TOONGA** » Fri Jul 29, 2011 7:35 pm

Green_eyed_liberty wrote:so obviously cant just buy and stick on. will need the twin carby engine

I've seen a set on a standard brumby EA81 it was fun to drive

TOONGA

H-top · Post by **H-top** » Fri Jul 29, 2011 9:40 pm

I know the seller. he bought my Vortex Engine

sven '2' · Post by **sven '2'** » Fri Jul 29, 2011 9:49 pm

Silverbullet wrote:That sounds so awesome Wish I could experience that one day...but I'm not about to fork out for this ebay manifold and try and find the bits for a twin carb engine...AND build it, had enough of that for a while

Oh and it's in QLD

You know you want it...

Post by **TOONGA** » Fri Jul 29, 2011 9:51 pm

Silverbullet should buy it and rebuild it

TOONGA

Silverbullet · Post by **Silverbullet** » Fri Jul 29, 2011 9:54 pm

TOONGA wrote:Silverbullet should buy it and rebuild it

TOONGA

Sure, going by how well the last one went...picking up the new engine this time next week haha

RSR 555 · Post by **RSR 555** » Fri Jul 29, 2011 11:45 pm

Gaz is right is saying they will fit a standard EA81 but will never have the benefit of the full power that the original EA81S (not official code but most commonly used to describe the Twin Carb model) engine produces. The original EA81S does have a different Camshaft but apart from that the bottom ends are (except pistons in the turbo models) all the same. The EA81S was not available in the Vortex and was only produced between 1983 to 1984. It was sold in the Brat and Leone and mostly exported to Northern America. Due to the Camshaft config and grind this engine produced the most torque from the NA range.

I had a complete car (ex-japan) and although it was ok.. it was nothing special. I believe you get but power and torque from the Weber conversion. But saying this.. if you setup the EA81S with the right carby combo then you could have something pretty special. The EA81 engine is one of the most indestructible engines around (I have seen some pretty sad ones during the rally days) but all in all they were/are pretty strong.

steptoe · Post by **steptoe** » Sat Jul 30, 2011 8:58 am

Yeah , my twins went straight (after I kitted them) on my EA81 engine of normal Oz spec that was fully rebuilt just prior - 40 thou oversize bore, 16/56 Watson race cam. The meat that came off the heads had to be made up for by enlarging the manifold to head bolt holes of the manifold that's all. I have the kit numbers somewhere if needed just PM me.
Such a strong pull up highway long hills - I didn't dare do over the still pulling 140 - fuel economy did not change either for those concerned 8.5 - 9 per 100.