About RustoGusto

ABOUT RESTOGUSTO

We began in 2016 with a vision to make the world’s most beautiful sports car something more than just another “numbers matching” restoration.

We believed that such a legendary race and sports car’s performance should not be defined by 0-60mph in 7.3 seconds. Simply put, we wanted our E-type to attain supercar street performance.


  • 2017Introducing our Cylinder Head

    Because the cylinder head is the single most important determinant of a car’s power, in early 2017, we have developed the highest performing cylinder heads for the legendary, three time Le Mans winning XK6 Jaguar engine that the world has ever seen.
  • 2017Introducing the Twin Spark Ignition System

    In late 2017, we developed a Twin Spark Ignition System. This knocked 9 degrees of spark advance off allowing compression ratios of 10:1 on retail gasoline.
 

Having achieved our original goal to add 100 horsepower to a stock XK6 engine by changing only the cylinder head, we set our sights on other components that have a bearing on the cylinder head’s ability to produce power.

 
  • 2018Introduced the Customer Tuned Exhaust System

    In early 2018, we created a custom tuned exhaust system that would help the XK6 engine extract more power from the RG cylinder head.
  • 2018Introduced our Long Tube Header

    Later in 2018, we created a long tube header, which significantly increased bottom end torque.
  • 2018Our Customer Electronic Fuel Injection System

    Throughout 2018, we worked on a custom Electronic Fuel Injection system that would extract even more performance from our cylinder head. This system would resemble the original S.U. carburetors with all modern nuances hidden from sight. This work is nearly completed at the time we launched this version of our website.

CONTINUING OUR WORK

We continue to work on ideas that will further advance the performance of the XK6 engine and classic Jaguar cars that were fitted with this wonderful engine.

OUR PRODUCTS

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ABOUT OUR PRODUCTS


We have a variety of products and accessories that go with your E-Type.


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(203) 622-8200

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S P E C I F I C A T I O N S :

Cylinder Head:

• New billet steel camshafts with high performance profiles:

– Intake Lift = 0.466” Duration 252 @ 0.050”
– Exhaust Lift = 0.426” Duration 248 @ 0.050”

• 37mm Diamond Like Coated (DLC) cam followers
• Ferrea® stainless steel valves sized to the 3.8 liter displacement:

– Intake 1.875”
– Exhaust 1.562”

• Nano material valve seat CNC radial cut & blended to runner bowls (read more)

Twin Spark Ignition:

• RG Twin Spark distributor with hall effect sensors for crank and cam position detection
• Preprogramed Spark Controller with built in MAP sensing
• Programing for two independent sets of plugs, each to have their own advance curve for 2nd spark variable delay
• Temperature sensor & Fan control relay
• Two Bosch coils with separate Bosch coil ignitors
• Billet aluminum coil & ignitor bracket
• Wiring harness that conceals Spark Control unit behind dashboard

Optional CP‐Carrillo® Connecting Rod Set:

Going to high grade forged CP‐Carrillo® connecting rods makes higher safe RPM possible. Higher RPM allows the engine to extract more potential from the RG cylinder head. When upgrading these components, it is advisable to recondition the OEM crankshaft and to have it nitride finished.

• Forged rod castings designed as high performance replacements for heavier original parts
• Rods designed to connect to OEM crankshaft
• Pistons will yield a 10:1 compression ratio with RG cylinder head (as will original Jaguar “9:1” pistons)

S P E C I F I C A T I O N S :

Cylinder Head:

• New billet steel camshafts with high performance profiles:

– Intake Lift = 0.466” Duration 252 @ 0.050”
– Exhaust Lift = 0.426” Duration 248 @ 0.050”

• 37mm Diamond Like Coated (DLC) cam followers
• Ferrea® stainless steel valves sized to the 3.8 liter displacement:

– Intake 1.875”
– Exhaust 1.562”

• Nano material valve seat CNC radial cut & blended to runner bowls (read more)

Piston Set:

• Universal forged CP‐Carrillo® piston for all bores – lighter than originals
• Piston accepts standard Jaguar connecting rod
• Piston profile produces 10:1 compression ratio when used with RG 3.8 liter cylinder head

Twin Spark Ignition:

• RG Twin Spark distributor with hall effect sensors for crank and cam position detection
• Preprogramed Spark Controller with built in MAP sensing
• Programing for two independent sets of plugs, each to have their own advance curve for 2nd spark variable delay
• Temperature sensor & Fan control relay
• Two Bosch coils with separate Bosch coil ignitors
• Billet aluminum coil & ignitor bracket
• Wiring harness that conceals Spark Control unit behind dashboard

Optional CP‐Carrillo® Connecting Rod Set:

Going to high grade forged CP‐Carrillo® connecting rods makes higher safe RPM possible. Higher RPM allows the engine to extract more potential from the RG cylinder head. When upgrading these components, it is advisable to recondition the OEM crankshaft and to have it nitride finished.

• Forged rod castings designed as high performance replacements for heavier original parts
• Lightweight forged connecting rods fit to OEM crankshaft