Hans, well known from running the BBT counter for over 10 years, started Speedshack when he left BBT.
Speedshack builds VW engines so Hans and BBT is an ongoing story.
Out of his research Hans gives us a lot of feedback.
Today he shares with us how easy you can obtain HP and torque with Auto Linea heads.
Hans said he took stock Auto Linea heads, gave the valve and seats a 3 angle cutting job. He left the ports untouched, modified the compression chambers slightly where he made them same diameter as the cylinder bore diameter and “unshroud” the valves.
These heads he combined with 90.05mm bore cylinders, stock crank and rods with a healthy 8.4/1 compression ratio, for a long engine life.
He used an Engle W100 cam with stock rockers and 2 x Weber 36mm IDF carbs set up with 30mm venturi on just a cheap EMPI hotdog exhaust.
The dyno results are pretty amazing as you can see from the screen above…
A whopping 97.8DinHp over a 145DinNm of torque.
This will be a fun engine to drive for sure!
If you’re interested in Auto Linea heads click HERE
If you want to contact Hans or need an engine like this visit him over www.speedshack.be
2 Comments
Leave a CommentActually not stock crank and rods, but that wouldn’t affect the numbers much. Counterweighed 69mm and new CB 5,4″ UniTech rods were used. The max VE might be a bit higher with smaller venturies and a velocity stack on the carb, but the 30mm vents and stackless low filters were used this time.
What we wanted to know is how good the AutoLinea heads intake ports were “out-of-the-box”. Some time ago we used the same style heads, also untouched ports, on a 1904cc engine, that had 170Nm peaking at 3000Nm, so I had to do another test.. and I was very happy!
Thanks for additional information Hans!