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Fuel Rail Banjo Connection   The majority of our fuel rails are supplied with a banjo fitting for connecting to a stock Honda fuel line.  The banjo fitting threads into the fuel rail using a -8AN thread and seals with an o-ring, this type of connection is called an O.R.B. or "o-ring boss" type fitting.  The smaller end of the fitting is where you would connect the stock banjo fitting attached to your factory fuel line.  For an H-Series this thread is an M12x1.25mm.  The nut and crush washers are not supplied with our fuel rail.  The banjo fitting can...

SO you just picked up a brand new Euro-R intake manifold and are wondering what to do now.  There are several things to do to a new intake manifold and for this part we will be focusing on the actual manifold modifications.  These are the same modifications we offer as a service but can also be done, by you, at home with the correct tools and a bit of patience.  If you want to skip the hassle we offer the service for sale HERE. The tools I use besides the CNC consist of an air powered die grinder, a good...

So there is alot of buzz about our modified 99mm K24 crankshaft kits going into an H series block.  One of the most common questions is “What rod and piston combo do I use?”  The best answer I feel is custom for both, though there is an OEM option.  We will discuss the pro’s and con’s of it and hopefully if you are new to engines you will learn a thing or two along the way.  Of course if you are just starting to learn about this sort of thing I do not recommend trying to order these parts yourself,...

  We get a ton of questions about the Euro-R intake manifold when it comes to what parts are needed.  In most cases there are several options you can choose based on how you want the manifold setup.  We have put together this step by step guide that addresses each aspect of the manifold.  Each step will let you know the different parts that are available and why you may want to choose one over the other.  Note that most of these parts are intended for off road use and may not be emissions compliant.  If you are still stuck...

If you have purchased one of our upper plenums, first of all we thank you for the business!  Here is a quick walk around of our upper plenums to show whats what as far as vac lines, brake booster fittings and the iacv system go.  If you are installing one of these manifolds use this as a guide and as always if you have any further questions please do not hesitate to send an email to rosko@roskoracing.com and we will do our best to get back to you as quickly as possible.  We are always here to help and support...