# Nikasil Cylinders

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#### Vigilant1

The real problem with the LN Engineering Nickies is the economics. I don't know anyone who would think that the loss of 12 or so pounds of weight and the better thermal performance (allowing maybe a slight power boost) is worth $3800. Maybe if they were half that price..... slociviccoupe I sure would love to see you be able to bring something like that to the market, if you could!! I had the interior of cylinders in my Citroën 652 cc, flat-tiwn engine, re-plated with Nikasil at 'Rectificadora del Valles', near Barcelona, around 200 €. Blessings + #### BrunoTheBear ##### Member Hi all, I'm working on VW Type 1 engine project for my ultralight aircraft (French regulation), and was considering using Aluminum Nicasil cylinders for weight gain purposes. Does anyone know if the QSC 92mm Aluminum Nikasil cylinder are thin wall or thick wall cylinders? If they are thick wall, then they can be put on a 94mm bored case, leaving quite a big amount of material to prevent deformation and distortion. Of course if they are thin wall, it's a different situation... #### dwalker ##### Well-Known Member I have Porsche 911 steel cylinders bored and Nikasil coated and we see better temps and longer life. On my Corvair engine I will be using in my Dragonfly I will have a set of 94MM VW cylinders cut for the conversion and then Nikasil coated. Various companies I have worked for/with have used US Chrome for over 30 years. Porsche provided aluminum and aluminum/steel lined, known as Biral cylinders from the factory. The OEM AU cylinders were originally Nikasil which gave some issues and where phased out in favor of Alusil. The steel lined cylinders are Nikasil lined. Ideally, any cast or "billet" AU cylinder would be made from Alusil, not lined with Nikasil, but in the aftermarket that likely is not an available option. I am actually quite shocked no one in the VW world has picked up on the the Biral cylinders for the Type1 given the proven reduction in cooling and weight. #### pfer10 ##### New Member #### Urquiola ##### Well-Known Member Hi all, I'm working on VW Type 1 engine project for my ultralight aircraft (French regulation), and was considering using Aluminum Nicasil cylinders for weight gain purposes. Does anyone know if the QSC 92mm Aluminum Nikasil cylinder are thin wall or thick wall cylinders? If they are thick wall, then they can be put on a 94mm bored case, leaving quite a big amount of material to prevent deformation and distortion. Of course if they are thin wall, it's a different situation... Would Corvair cylinders fit? It were produced in several different dimensions, they made over 2 million of these cars. Parts easy to find. Blessings + #### Bill-Higdon ##### Well-Known Member Would Corvair cylinders fit? It were produced in several different dimensions, they made over 2 million of these cars. Parts easy to find. Blessings + Big Bore cylinders for Corvairs are modified VW Big Bore cylinders #### jeffwalin ##### Active Member ln engineering are kind of expensive at$3800 a set for a VW flight engine. It almost doubles the build cost.

I would love a set, though....but I would be more inclined to buy a set from Hummel Engines (Scott Casler) or build my own....

#### pfer10

##### New Member
No doubt on the cost of those things for a VW engine.

#### Tipsynipper

##### Member
The QSC cylinders are steel lined, & not Nikasil. They are thin wall.
I used a set on my Nipper years ago which worked very well & are still in service at about 300 hrs. , & have another 2 sets to fit. The QC is terrible, I made 2 good sets from 12 cylinders, some poorly machined, some different lengths.

#### jeffwalin

##### Active Member
QSC sells full aluminum cylinders. I could not find steel lined cylinders in their products, though they must have sold them in the past if you have a set!! I believe these were the "biral" type cylinders, which are yet another option to explore...but not currently available from QSC as far as I can tell.

#### BrunoTheBear

##### Member
QSC confirmed me they were thin wall cylinders...
Weight is an important point for my VW engine project and there seem to be 12lbs difference between steel and aluminum cylinders.
That's quite big when it's on the nose side of the aircraft !!

#### jeffwalin

##### Active Member
QSC confirmed me they were thin wall cylinders...
Weight is an important point for my VW engine project and there seem to be 12lbs difference between steel and aluminum cylinders.
That's quite big when it's on the nose side of the aircraft !!
Yes sir, weight is a big deal on VW powered planes particularly, with our limited horsepower.

But, particularly in the case of the cast aluminum cylinders in the past, that weight savings won't do you much good if the engine isn't reliable due to those lightweight cylinders.

A better path to weight savings would be focusing EVERYWHERE on the whole plane on saving weight.

Everything that is not NEEDED in flight is impacting performance and putting more heat into your engine.

Including my big, fat, waistline!!!

#### Tipsynipper

##### Member
QSC sells full aluminum cylinders. I could not find steel lined cylinders in their products, though they must have sold them in the past if you have a set!! I believe these were the "biral" type cylinders, which are yet another option to explore...but not currently available from QSC as far as I can tell.

QSC don't know what they are selling, or are B***ing. They listed them as Nikasil, I have been talking to ebay who may have told them to change their listing, but so far have not done so. They are steel lined, as a magnet will stick to the inner wall, unless they have invented magnetic aluminium.
If you need any more proof that they don't know what they are selling have a look at:

If you do decide to deal with QSC you can do so direct, but I would strongly recommend that you go through ebay, as you have far more protection as a buyer. I would also strongly recommend that you measure them very, very carefully.

The set I bought are still in service some 10 years later, so I am not suggesting they are no good, but, they need careful installation and care.

#### BrunoTheBear

##### Member
I received my QSC Nikasil cylinders today.
I can confirm the following:

#### BrunoTheBear

##### Member
* its 100% aluminum
* each cylinder weight around 1kg
* all dimensions seem OK so far
* visual inspection of Nikasil coating does not show any flaws (as far as I can see)

So far so good !

#### Tipsynipper

##### Member
Have you put a magnet on the inner surface?

#### BrunoTheBear

##### Member
No I didn't make the test with the magnet... but given the weight, it's clearly aluminum, not steel !

#### Tipsynipper

##### Member
The cylinders I have received (all previous 4, and the last 12 which I could make a 2 sets of 4 from, 4 I sent back as un-usable due to defects in the cylinder wall or wrong length) are all steel lined.....the lining is only about 0.035" thick, so it doesn't make much difference to the weight.
Make sure you measure the length of the cylinder, from top to the base where it meets the crankcase face.