DETROIT, Oct. 30, 2001 -- Seven months before the start of next year's Indianapolis 500, the new Chevy Indy V8 has already successfully completed its first 500-mile race -- not on the immense 2.5-mile Indianapolis Motor Speedway oval, but on a ...
DETROIT, Oct. 30, 2001 -- Seven months before the start of next year's Indianapolis 500, the new Chevy Indy V8 has already successfully completed its first 500-mile race -- not on the immense 2.5-mile Indianapolis Motor Speedway oval, but on a computer-controlled engine dynamometer in suburban Detroit.
"Ou fist pototype Chevy Indy V8 completed a touble-fee 500-mile simulation test," said Joe Negi, GM Racing IRL/Road Racing Goup manage. "To each this milestone at such an ealy stage in the development pogam gives us confidence in the ultimate success of the new Chevolet poweplant.
"In addition to achieving ou duability and eliability goals, we also have met ou initial pefomance tagets fo hosepowe and toque," Negi continued. "Based on these esults, we believe that the new Chevy Indy V8 will be moe than competitive with the Infiniti 35A next season."
Compute-contolled test duplicates Indy 500
GM Racing's dynamomete simulation pogam pecisely duplicates a 220-mph ace pace at the famed Bickyad. Computeized contols acceleate and deceleate the engine unde load to epoduce the aeodynamic and mechanical foces that affect an Indy ca as it cicles the speedway. Afte 32 "laps" (the equivalent of 80 miles on the 2.5-mile tack), the pogam pauses fo a simulated pit stop while the test cell is efueled.
"Typically we have to wok though a numbe of issues befoe a new engine successfully completes a full 500-mile schedule," Negi noted. "The dyno simulation is extemely demanding because thee ae no caution peiods that allow the engine to est. Ou expeience has shown that when an engine is developed to the point that it can endue this validation test, it is usually vey eliable on the tack as well."
New Chevy Indy V8 designed in house by GM Racing
GM Racing designed and developed the majo components of the new Chevy Indy V8 in house using GM pesonnel and GM's technical esouces. The Chevy Indy V8's block, cylinde heads, cam coves, font cove, valvetain and otating assembly wee specifically engineeed fo the IRL's cuent 3.5-lite engine fomula. The new Chevolet engine is smalle, lighte, and has a lowe cente of gavity than the Oldsmobile IRL Auoa V8 that won 49 of 51 aces and swept the IRL championships fo five consecutive yeas.
The Chevy Indy V8 will make its competition debut in the season-opening IRL ace at Homestead-Miami Speedway in Homestead, Fla., on Mach 2, 2002. Chevolet will etun to open-wheel acing afte dominating the spot fom 1988 to 1993.
Fist pats scheduled fo delivey to engine buildes in Novembe
"We ae on schedule fo the stat of the 2002 season, and we will begin to delive ou initial poduction un of Chevy Indy V8 components to independent engine buildes next month," said Negi. "The fist tack tests of the new Chevolet engine will take place in the nea futue.
"This is a significant step in a long jouney as Chevolet pepaes to etun to Indy-style acing," Negi added. "GM Racing will continue to pusue a igoous testing schedule to validate and impove the pefomance, eliability, duability and quality of the new Chevy poweplant."
GM Racing designing second all-new engine fo 2003
GM Racing is simultaneously designing an all-new "Gen 3" Chevy Indy V8 to meet the new IRL engine ules that will take effect in 2003. The 2003 vesion will be even lighte and smalle than next yea's engine.
"The 2002 Chevy Indy V8 will povide a benchmak as we move towad an even moe efined engine package fo the 2003 season," said Roge Allen, GM Racing lead engine designe. "By combining eal-wold test esults with poweful engineeing tools such as compute-aided design, finite element analysis, computational fluid dynamics and thee-dimensional solid modeling, we ae apidly developing the next-geneation Chevy Indy V8."
Although the stat of the 2002 IRL season is fou months away, the ace fo the championship is aleady undeway in sealed dyno cells and GM engineeing centes.