Welcome to Performance Oriented!

Performance Oriented has provided premium service for Weber triple throat carburetors since 2006. We are especially experienced in providing period correct restorations for the SWB (Short Wheelbase) 911s produced from 1966 through 1968 and are happy to remain committed to this effort.

Each project is tailored to the customer's personal goals and every carburetor is bench set followed by tuning on our dedicated test engine to assure "ready-to-run" performance. 

Fast, interactive communication and attention to individual customer's requirements are the hallmarks of Performance Oriented.

We thank you for your continued support!

About our service offerings

Our most popular service offering is the “Complete Carburetor Re-Manufacturing Service” @ $3675 as described below.

Other services are available, please contact us for details:

  • Rebuild & Tune @ $1725

    • The Rebuild & Tune Service provides disassembly, cleaning, re-assembly, and pre-tuning your Webers resulting in bolt-on, running performance. 

  • Throttle Housings Only @ $1675

    • The Throttle Housing Only Service is for those wanting the essential mechanical refurbishment of the throttle shaft bearings to rectify slow speed running issues.  

  • Complete Carburetor Re-Manufacturing @ $3675

    • The Complete Carburetor Re-Manufacturing Service provides a comprehensive mechanical refurbishment of your carburetors returning them equal in function to new Webers. This service includes: disassembly, cleaning, re-bushing throttle shaft journals, mechanical refurbishment of all components, zinc plating of all removable steel parts including vent pipes, re-assembly, bench setting and pre-tuning your Webers on our dedicated test engine resulting in bolt-on, running performance.

  • Complete Carburetor Restoration @ $4775

    • The Complete Carburetor Restoration Service Provides concours and period correct mechanical and cosmetic restoration of your Webers.

  • Performance modifications

    • Throttle bore enlargement

    • IDTP to IDA conversion

    • Racing modifications

    • Please inquire for more details

Please note:

  • Every carburetor is fully bench set followed by tuning on my dedicated test engine to assure your Webers are “ready to run”.

  • Jetting is assessed with regards to your engine specifications and for your driving application.

  • If you are using IDTP Webers on a non-OEM specification engine then Performance Oriented will provide counsel regarding modifications to your Webers to mitigate transition drive-ability issues.

Complete Carburetor Re-Manufacturing Service @ $3675

Details of work performed:

  • Itemized Price Proposal tailored to your requirements

  • Complete disassembly of throttle housings and cleaning of all components:

    • Cleaning process involves:

      • Dip-tank soaking

      • Ultrasonic cleaning

  • Two, high-capacity, steel-infused, self-lubricating, sintered-bronze, throttle shaft bearings installed in each throttle housing

  • Throttle housing bottom flanges re-surfaced for flatness

  • Fuel ports re-machined for sealing efficiency

  • Fuel galleries supplying idle fuel jet are opened, reamed and re-sealed with lead plugs

  • Top covers modified to control float bowl percolation issues

  • All jetting components are measured for size, checked for damage and assessed for your engine specifications and driving requirements

  • Brass components are inspected for damage; de-burred, bead-blasted and wire-wheeled

  • Fuel floats are blueprinted for geometry, leak tested, lightly bead blasted and wire-wheeled

  • All removable steel components are de-burred and zinc plated to OEM specification

    • Note: Studs are not considered to be removable items and will not be refinished

  • Vent pipes in top covers removed, zinc plated and reinstalled

  • OEM style, riveted 8mm ball studs installed in throttle lever arms

  • End-float of both throttle shafts in each throttle housing adjusted

  • Accelerator pump bodies and top covers:

    • Blueprinted for geometry

    • Re-surfaced for flatness

    • Bead-blasted and wire-wheeled

  • Accelerator pump output is leak-checked and adjusted for parity of delivery volume

  • Main venturis and auxiliary venturis are lightly bead-blasted

  • Throttle housings bench flowed to achieve air flow parity with air correction screws fully closed

  • All new assembly hardware kit includes:

    • Viton-tipped fuel supply needle valves

    • High quality gasket kit

    • Tall M5, nylock hex nuts per OEM specification

  • On-engine tuning includes adjustment of:

    • Idling speed

    • Idle mixtures

    • Idle air flow parity

    • Fuel float levels adjusted

    • All fuel interfaces checked for leakage

Photo identifies what items to send to Performance Oriented for “Complete Carburetor Re-Manufacturing Service”.

  • Image shows one pair of 40IDTP3C Webers as used on 1969 Porsche 911T after completion of service

  • Only those items shown in the image are to be sent for this service.

Options For “Complete Carburetor Re-Manufacturing Service”

Note: The following is a partial list of all remanufacturing, modification and restoration services available. Please contact Performance Oriented for complete service offerings.

  • Tuneable Idle Air Correction Jet Modification: $95

    • Provides tuning adjustment of idle/transition circuit fuel delivery curve

    • Recommended for IDTP Webers used on engines with mild modifications

    • Includes three sets of air correction jets

    • Available in kit form for user installation: $75

  • 40mm to 46mm conversion: $425

    • Converts 40mm Webers to have 46mm throttle bores

    • Recommended for large displacement, performance engines

    • Includes Tuneable Idle Air Correction Jet Modification

    • Six throttle shaft bushings per throttle housing

    • Throttle bores re-machined

General Notes:

  • Scheduling:

    • To secure a service date please send an email to info@PerformanceOriented.com after which you will receive your Customer Service Number. Approximately two weeks prior to your service date Performance Oriented will contact you so you may ship your Webers.

  • Customer to supply:

    • Carburetors as depicted in the photo above.

  • Customer to retain:

    • Air cleaners and associated components

    • Intake air horns

      • If 40IDS3C Webers as used on the 1967 and 1968 911S then include intake air horns to protect the High Speed Enrichment Tubes that are unique to these carburetors.

    • Intake manifolds

    • Throttle linkage components

  • Customer is responsible for performing final adjustments to tailor the tuning of their carburetors to their engine.

  • It is assumed the supplied carburetors are serviceable units removed from a running engine. Units with missing components, seized throttle shafts, broken jet holders or that are corroded and/or dirty will incur cost adders to return them to service.

  • Packaging and Shipping:

    • Recommended packaging procedure:

      • Wrap each carburetor with bubble wrap.

      • Remove mixture screws and place them into one of the throttle bores. Arrange carburetors to face each other with the accelerator pumps to the outside of the arrangement. Invert one carburetor relative to the other (one is upside-down) and stagger the carbs so the middle bores are not in alignment with each other: in other words, offset one carb relative to the other.

      • Firmly tape the two carburetors together creating a single bundle.

      • Place this bundle into a larger box filled on all sides with packaging “peanuts” or other suitable packing material. A convenient size box is 15” x 15” x 12” which is easily constructed from a 15” x 15” x 15” box.

      • Have Performance Oriented sign for the shipment at time of delivery.

      • Performance Oriented prefers FedEx as the shipper.

      • Contact Performance Oriented via email info@PerformanceOriented.com prior to shipping to assure we are ready to receive it.

    • Address (This is a residential address.)

      • Paul Abbott

      • 11 Chester St.

      • Worcester, MA 01605

      • 530.520.5816