New Chevrolet R07 to be Tested at the Texas Motors Speedway

Big changes are taking place over NASCAR and forupdated block than what we’ve ever had
this coming weekend at the Texas Motor Speedwaybefore.”
another transformation will be taking place. While theWhen asked if the new engine produces more
Nextel Cup drivers are driving their old familiar carshorsepower and torque or is more fuel efficient,
which they have been driving for years after theCronquist replied, “it’s just better all over.
first two races in the Car of Tomorrow, the rest ofWe're finally more even with what Dodge and
the Chevrolet entries are to be powered by a newToyota have. It kind of got us back in the same
engine.playing field, back in what's considered NASCAR's
Chevrolet maker of the quality Chevrolet exhaustbox. We were outside of the box, actually below the
system, has been developing an engine for ninebox. We had disadvantages and they finally let us get
years now and for the first time it will make itsthe same advantages that other manufacturers had
racing debut in Samsung 500. “This engine nowover us. I don't think that we've really gotten into
called the R07 actually started out as R99 becausemuch of the performance part about it. A lot of it is
we ran it the first time in 1999,” said Markthat the shop needs just a lot less time to work on
Cronquist, chief engine builder for Joe Gibbs Racing.the parts and pieces of it. There's a lot of stuff in
He also added, “There was an R03. There wasthis block that's already cast into the block that we
an R05 that never got off of the chalkboard,used to have to make ourselves and try to fit into
basically. We had it all designed, but never made it.our blocks. That took a lot of time and effort to do.
Then there’s this one, R07. So really, this R07If the performance comes, it will come because
has been worked on by GM teams since 1998.we're going to have a lot more time in our shop to
I’ve got notes in my office from the very firstwork on it."
time we talked about this engine. It was JanuaryCronquist further added, "A lot of it is that the shop
1998.”needs just a lot less time to work on the parts and
The process was rather frustrating but at the end itpieces of it. There's a lot of stuff in this block that's
was worth the wait said Cronquist and “thealready cast into the block that we used to have to
awesome thing is that, if you look at R09 and R07,make ourselves and try to fit into our blocks. That
they don’t even look alike, so I’m gladtook a lot of time and effort to do. If the
NASCAR never approved it. It had some updates,performance comes, it will come because we're going
but every time NASCAR didn’t approve it, weto have a lot more time in our shop to work on it."
went back and worked harder on it and changedChevrolet’s 5 of 6
more things on it.”The Chevrolet team has gotten to a great start this
For this coming weekend it is expected that sixyear in Cup winning five of the six races. The reigning
teams will run the new engine. Gibbs Racing will placechampion Jimmie Johnson has won three of the five
an R07 in the cars of Tony Stewart, Denny Hamlin,races while Hendrick with teammates Kyle Busch, and
and J.J. Yeley Hendrick Motorsports’ CaseyRCR’s Kevin Harvick have won the other two
Mears and Kyle Busch, and Scott Wimmer, driving afor GM. The victory of Matt Kenneth’s at
fourth Richard Childress Racing entry.California Speedway in a Ford is the only blemish on
General Motors world’s largest automaker andChevrolet’s record for this season.
distributor of Chevrolet exhaust is hoping to have theOut of the eight Chevy drivers that are currently in
engine ready for this season’s upcoming race butthe top 10 in Cup points, two have won at Texas.
unfortunately a few technical difficulties slowed theJeff Burton won the inaugural Cup race in Fort Worth
progress of the project. Cronquist is very muchin the year 1997 but he was a driver of Ford at that
excited to get the new engine into competition. Hetime. Stewart won on the 1.5 mile Texas track last
said, “With a motor we’ve been running, thefall. The different drivers winning each of the 12 Cup
block part of it was actually designed in 1955.races at Texas only two others have been in
We’ve made a few modifications to it, but itChevrolets namely Terry Labonte who won in 1999
would still bolt into a 1955 Chevy Bel Air. The newand Dale Earnhardt Jr. who won in 2000.
block has got a lot more technology in it. Its more