1 port to 2 port conversion

MASSIVE TYPE IV · Post by **MASSIVE TYPE IV** » Sat Mar 16, 2002 3:34 pm

Keep it single port...they are much better for a bus.....

------------------
Jake Raby
Raby's Aircooled Technology
www.aircooledtechnology.com

Post by **sparkmaster1** » Sat Mar 16, 2002 6:55 pm

I second that. It will live forever and you can't hurt it. Tim

vdubob · Post by **vdubob** » Sat Mar 16, 2002 11:58 pm

can anyone detail single port to dual port conversion process?

Jacob · Post by **Jacob** » Mon Mar 18, 2002 2:13 am

Why is singleport heads better than dualport in a bus?
I had planned to convert.
(I happen to have a pair of dualport heads and a '68 with one broken singelport head.)
By the way, isn't converting nothing more than bolting the dualport heads to the engine, together with a new intake manifold?
/Jacob

dstar5000 · Post by **dstar5000** » Mon Mar 18, 2002 12:46 pm

What they are trying ot tell ya Dude, is that a bus is a brick with a drag co-eficient of 200, not a race car.

If you go to the dual port, you will have the opportunity to over carb it and as such, burn the motor up.

Busses are slow and mean't to be. Slow down and enjoy the ride Dude!

Don

------------------
78 Westy 2.0l
71 Bradley GT 1641cc

"The greatest pleasure in life is doing what people say you cannot do".
Walter Bagehot

OP · Post by OP » Mon Mar 18, 2002 3:18 pm

Try and keep it a single port if you can. They run cooler and therefore tend to suit vans better. When the twin port was introduced the air intakes got larger you may have noticed (well they did over here) to get more air in.

OP

Bob Ingman · Post by **Bob Ingman** » Mon Mar 18, 2002 5:58 pm

Do`nt know why but single ports are good in a bus.My last bus was a 70. Had single port to begin then I built a DP with cam carb and header set. The bus just does`nt respond to this kind of treatment. Went back to SP and was much happier.
My van now is another 70 with single port. Have gone to a lot of trouble to keep it that way. Has plenty of power and pulls well. The modifications I`ve made to it are case savers with small head studs, dog house shroud with larger late fan, and alternator. I am completely happy with this engine in this car. It just seems to be the right engine with the weight and gear ratio. Good luck. Bob Ingman

Pillow · Post by **Pillow** » Mon Mar 18, 2002 10:11 pm

One word why the SP is better: torque.

Keep the small stock exhaust with the SP as well.

Everyone complains about 2.0L bus heads. Guess what, they were designed for max torque as well. Not drag racing as previously stated.

Plus the SP heads are stronger. Less likely to crack the heads.

------------------
Adrian Pillow
'66 VW Westfalia - "Biscuit"
'79 Porsche 911 SC - "Cochese"