Venturi ring installation video
Improve your cooling with an
Awesome Powdercoat Venturi Ring!
You need a velocity ring (also called a volute ring, or just a cooling ring). This is an American made model of the factory fuel injected fan shrouds.
Cooling is improved by increasing the air velocity through the fan. The rings are all stainless steel construction, with spot welded mounting tabs and a satin black power coated finish. They can be installed on any factory or aftermarket doghouse fan shroud by welding, brazing or rivets.
A version for the early fan shroud is also available.
* Made in Ohio, USA
* All Stainless Steel Construction
* Works on all Doghouse Style VW Engine Tin
* Improved Engine Cooling
7.3% more airflow across the entire rpm range, at 4000 rpm, that is 800 extra cfm!
I have been working with Andrig of AAT. He has done some amazing data collection, both for his new 3D printed fans, and my venturi ring. He has a serious setup, traceable back to ASTM standards, he has recorded air speed, pressure and cfm.
adding this venturi ring to an early VW internal oil cooler shroud will boost your cfm by 8%
adding this venturi ring to a doghouse fan shroud will boost your cfm by 5%
adding this venturi ring to a porsche 356 shroud will boost your cfm by 5%
adding this venturi ring + his fan to an early VW internal oil cooler shroud will boost your cfm by 16%
adding this venturi ring + his fan to a doghouse fan shroud will boost your cfm by 14%
adding this venturi ring + his fan to a porsche 356 shroud will boost your cfm by an amazing 25%
AAT can be found in my links page.
Venturi rings are also available separately,
so you can install them on your existing fan shroud.
Rings sold individually come in satin black
powder coat with 1/8" holes in the clips so
they can be welded or pop riveted into
place. Installation instructions are included.
Standard setup is for doghouse oil cooler, but can also be made to fit the early fan shroud (internal oil cooler) even the center mount fan shrouds. The ring is the same, the mounts are different.
Prices are:
$55 for the ring alone, or added to any
shroud you buy from us.
All prices are + shipping.
Doghouse Venturi Ring
Model: VW type 1 engine, doghouse oil cooler
Engine: flat 4 1600 base
ONLY $55.00
ONLY $55.00
EARLY Venturi Ring
Model: VW type 1 engine, Porsche 356 EARLY internal oil cooler
Engine: flat 4
ONLY $55.00
ONLY $55.00
Its a great product, all my VW's will have a ring."
Kurt C
It has made a huge difference in temperature reduction. I have to race the vehicle, (in the 5000 rpm range sustained) to generate high temps at all."
— D.A.B.
The engine has a more stable idle due to cooler running.
Ron A.
The motor definately runs cooler.
Billy D.
Customers have seen an average cylinder head temperature reduction of 68F, with a max of 100F
survey
I can touch dip stick after a hard run when I could not before.
— Jacob S.
Customers have seen an average oil temperature reduction of 33F, with a max reported of 60F.
survey