New Shaver/Schatz LS Sprint Car Motor

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Welcome to the Open Wheel!
On Friday, August, 13th 2010 at Knoxville, IA during the Nationals, there was a presentation on the new LS Sprint Car engine developed by Ron Shaver with the help of Danny & Donny Schatz that people have been talking about for the past several weeks

LS Sprint Car Presentation - 8/13/10

LS Sprint Car Engine

Why

• Sprint Car Entries and Events Are Declining

Reasons Given

• Cost to purchase and maintain new OR used current 410 engines
• Perceived lack of competitiveness with top funded teams

Program Objectives

• Lower engine cost and rebuild frequency and expense
• Restrain (not eliminate) evolution that creates inequity and drives cost
• Maintain participation of current engine builders and 410 owners
• Measure success by increases in car counts, spectators, events and competition

Opportunity
The GM LS V8 has evolved to become a significant contender to replace the Chevy Small Block V8 (SBC) and many of it's aftermarket variations. The Development of variations producing significant power levels for the Corvette, Cadillac and some trucks has resulted in basic components produced in volume than can be used to build engines of even greater power at reasonable cost. The aftermarket has recognized this with a growing array of performance parts to fit these building blocks further reducing the number of unique parts that need to be produced to complete a racing engine. This presents the opportunity to create a low cost, light weight, high power, all-alloy engine similar to engines derived from the original Chevy Small Block.
Proposal

• Engine based on specified major components from GM LS V8 engine family for both cost and uniformity
• Additional components specified from high volume after market suppliers
• Freedom to choose many parts limited only by dimensions, materials and weights
• Participating builders will agree to CERTIFY their engines as meeting rules and make "at risk" monetary commitment that will be forfeited if found illegal
• Engine fits current cars with minimum changes
• Engine to run "heads up" with current 410 entries

Expected Results

• Increased event car counts
• Added regional race events
• Increased spectator interest
• Increased competition
• More candidates to contend in "national" events
• Incumbent participants (builders, owners, tracks, sanctions) retained

LS Sprint Car Proposal
Engine As Built

Short Block

• LS7 Aluminum 4.140" bore
• Forged Steel Crankshaft
• Forged Steel Rods
• Mahle 2618 Forged Pistons and Rings
• .927 wrist pins
• Standard Clevite Bearings
• Shell Cam Bearings

Cylinder Heads

• L92/LS3 Cylinder head CNC ported (intake 280cc/Exhaust 95cc)
• LS3 Hollow Stem Steel Intake Valves (88gm)
• LS3 Solid Stem Steel Exhaust Valves (95gm)
• Comp Cams Dual Coil Springs w/Comp Retainers and Locators

Valve Train

• Comp Cams Hydraulic Roller Cam
• Comp Cams Short Travel Hydraulic Lifters
• Manley 5/16" Push Rods
• LS3 Steel Rocker Arms (1.7 non-adjustable)
• Comp Cams Trunnion Upgrade Kit
• Cloyes 9-3172AZ Timing Set

Induction

• GMPP 4-Barrel Manifold Modified for Constant Flow Injectors
• 4150 to 4500 Adaptor
• DSR 2.25" 4-Barrel Throttle & Barrel Valve
• Hilborn Nozzles and Hoses

Ignition

• GM LS Coil Packs
• MSD 6LS-2 Control Module
• 12ah AGM Battery

Pumps

• Barnes 9117-3 Oil Pump
• KSD 1057 Water Pump

Approximate Part Cost: $15,500