1. Home
  2. Volkswagen, hot (Aircooled)
  3. Twin/Single port differences. 1300cc ok for tuning?

Twin/Single port differences. 1300cc ok for tuning?

Hi there, I have been offered a running 1300 twin port engine for about =A330 with merged headers. I want to learn more about an engine before I buy a pre 67 beetle next year so I thought this would be good to play with.

Questions:

  1. I think I understand the differences between twin port and single port, but what are the advantages (if any?)

  1. Whilst this engine will just be used for playing with, could the head's etc ever be used to take 1641 pistons etc? Or should any

100hp tuning just be done with an original 1600cc engine as a base.
  1. I am told that it is from a 1972 engine and has a 4branch preheat (off an AD engine code) engine. What does this mean? Does he mean 'AB' engine code?
  2. I am told that an engine can simply be started when out of the car just by sitting on the heater channels on the floor. Is this true?

Thanks in advance

Reply to
Dave Angel
Loading thread data ...

Buy it.

I want to learn more about an engine

Twin port, one intake port for each cylinder, breathes easier(better).

Cant remember, but thinks the register of the 1300 heads need to be machined to fit 1600 cylinders. Or should any

I saw this comment from Jan regarding output of a T1 engine, let me assure you it takes more than a set of 1641 cylinders to make 100Hp.

AD 1600cc T1 engine from a Type2(Transporter).

If you have a piece of the tranny you can bolt to the engine supporting the starter yes(or purpose built adapter).

J.

Reply to
P.J.Berg

Is this some sort of joke?

Reply to
Andrew

What do you mean? Buying a running engine for =A330 to strip it/tinker/ learn about it? Wanting to know if it's a reasonable base for any kind of tuning up to 100bhp (yes, I am aware that new pistons won't bring it up to 100bhp ;-)? Or wanting to know if the engine can be run outside the car just sitting on the heater channels?

Reply to
Dave Angel

I was also wondering about that comment..

J.

Reply to
P.J.Berg

Maybe the guy has not heard of 1300cc dual port VW motors. As I recall, they were used in industrial applications such as wind tunnels, etc.

However, don't the 1300 cases lack replacable bearings for the camshaft, etc? I would think buying it for $65 and reselling it on SAMBA would be a good deal.... then getting some old 1600 to hop up... but then, maybe

1300s are plentiful > >
Reply to
KWW

BINGO.....

Reply to
Joey Tribiani

The 1300 dual port engines, where widely sold in Europe. They are the same engine as the 1600 dual port, but with smaller pistons and heads.

To build a 70-80bhp engine out of it, you will need new pistons / cylinders (up to 1641 will fit to the case without machining) and new heads. You will also need dual carbs and a more aggressive cam profile than stock and full flow oil filtration. But don't expect it to last long. Pistons and crank will most likely not be reusable to a new project when this engine fails, but the carbs / exhaust, full flow oil adapter, and maybe the cam if you are lucky will be reusable.

To get 100bhp out of a 1600 engine, it must be very well designed and assembled with high quality expensive parts without cutting any corners. An old used case, doesn't fit there.

Bill Spiliotopoulos, '67 Bug.

Reply to
Bill Spiliotopoulos

Heater channels are inside of your vehicle. Heat exchangers / boxes are attatched to your engine.

Reply to
Andrew

MotorsForum website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.