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Twin Kadrons and a 1600 single port engine??

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68AutoBug Beetle Restorer - Experience over 138\% - YIKES --

11,654 posts · joined Aug 2002 ·

#162708
What are the thoughts on a single port 1600cc engine with twin kadrons?? Would it make any difference?
More power? more fuel? Less fuel?

or am I better off changing to twin port heads?
I have changed both heads so I won't be doing it now..
because of the semi Auto setup with vacuum hoses etc, I thought I would have to stick to single port heads etc..
I now know of semi autos overseas running twin ports and twin carbies... so there isn't a problem...

thanks
Lee
- Helping keep Air Cooled VWs on the road - location: SCONE in the Upper Hunter Valley - Northern NSW 320 kms NNW of SYDNEY---

Che Castro ankle straps

1,945 posts · joined Aug 2002 ·

#162723
I was considering putting kadrons on my 1600 SP recently, but the manifolds aren't that easy to find, the problem i found with the single port heads is that there isnt really any support for a carb to hang off the intake. The studs are only 6mm and they can pull out of the head pretty easy.

Although a 1600 SP can really go hard, the charge velocity is higher because the ports. I reckon it would be better with fuel if u keep your foot out of it, and u'd definitely get more power.

I'm running a bog stock 1600 SP with a V-Force AP2 cam , stock exhaust, 30 PICT 3 carby and i got 39HP at the wheels.

whack some extractors on it as well and see what happens.
Jon

ph billet Officially Full-On Dubber

237 posts · joined Nov 2003 ·

#162766
I am running a 1600 SP with twin weber 34 itc carbs and a 009 it runs very well its no rocket ship but it still kicks along for manifolds I fabricated my own and used a support bridge between them that runs behind the fan housing thay are about 6 inches long to put the carb up higher and give a good velocity effect plus thay look cooler than a single carb.
http://www.cardomain.com/ride/3324199

68AutoBug Beetle Restorer - Experience over 138\% - YIKES --

11,654 posts · joined Aug 2002 ·

#162780
Thanks guys,
I didn't think there were any single port 1600s about.
I haven't seen any single port manifolds about... maybe I can fabricate some from an old inlet manifold...

A retired VW technician in the US told Me that he thought twin Kadrons were really too big for a single port engine but twin webers were better... Maybe the same ones You are running ph.
It Is common knowledge that standard single port engines have MORE torque than a standard twin port engine...

I did think with the distance the fuel has to travel with a single carby that twins would work better...

cheers
Lee
- Helping keep Air Cooled VWs on the road - location: SCONE in the Upper Hunter Valley - Northern NSW 320 kms NNW of SYDNEY---

karmannghia60 Karmann Ghia Sucker

1,459 posts · joined Aug 2002 ·

#162826
SP manifolds for Kads are around. I have one

Che Castro ankle straps

1,945 posts · joined Aug 2002 ·

#163016
yeah go the single ports!

the only problem is that putting dual 2barrel carbs on it is that the mixtures are separate then combine then separate again, Its a bit silly
Jon

lugnuts Custom Title Time!

1,070 posts · joined Aug 2002 ·

#163120
68AutoBug wrote:Thanks guys,
I didn't think there were any single port 1600s about.
I haven't seen any single port manifolds about... maybe I can fabricate some from an old inlet manifold...

A retired VW technician in the US told Me that he thought twin Kadrons were really too big for a single port engine but twin webers were better... Maybe the same ones You are running ph.
It Is common knowledge that standard single port engines have MORE torque than a standard twin port engine...

I did think with the distance the fuel has to travel with a single carby that twins would work better...

cheers
Lee
I think hes talkin bout weber ICTs unless im mistaken.

karmannghia60 Karmann Ghia Sucker

1,459 posts · joined Aug 2002 ·

#163164
The Kads are not dual barrel

Craig Torrens 6 times Australian, 7 times State Hillclimb Class Champion

8,040 posts · joined Jan 2003 ·

#163169
Are your single port heads 040's ? (And Yes they made 040's in single port!)


lugnuts Custom Title Time!

1,070 posts · joined Aug 2002 ·

#163196
My heads startin to hurt now,what are we talkin about:o

Craig Torrens 6 times Australian, 7 times State Hillclimb Class Champion

8,040 posts · joined Jan 2003 ·

#163203
Kadrons onto a single port 1600:thumb


68AutoBug Beetle Restorer - Experience over 138\% - YIKES --

11,654 posts · joined Aug 2002 ·

#163207
My Heads are just standard 1500cc heads, with 1600cc pistons & cylinders etc..

Did any 1500 single port early type 3s have twin solex carbies with manifolds??

Probably were Weber ICTs...

Maybe I should have drilled & tapped for larger studs for the inlet manifold....

Lee
- Helping keep Air Cooled VWs on the road - location: SCONE in the Upper Hunter Valley - Northern NSW 320 kms NNW of SYDNEY---

Che Castro ankle straps

1,945 posts · joined Aug 2002 ·

#163221
yeah i know kads are singles, but my point was putting some dual barrels on a single is a bit silly
Jon

Craig Torrens 6 times Australian, 7 times State Hillclimb Class Champion

8,040 posts · joined Jan 2003 ·

#163225
Lee, the reason I asked is that you can get 040 single port heads that flow nearly as well as the twin port heads. If you have these then use the kadrons and don't change the heads.

If you take off the rocker covers you will see if the part number starts with 040......... or 113........

My 1500 beetle is a single port and has the 040 heads.