Untitled - BBK Performance

I
I
CFIEATIVE
LICENSE
S T E V EL O N G A C R E ''S9 3 M U S T A N GG T
Enterfriendandengine-builder
BrianBaker,
who wouldapplyhis meticulous
attention
to
detailand thorough
knowledge
of the smallblockFordto Steve'snewpowerplant.
Another
stock block was locatedand deliveredto
Shacklett
Machine
in Nashville.
Therenowned
race-engine
buildersmachined
the boresof
theblock0,030-inch
oversize
andtruedup all
the criticalsurfaces,
0ncecleanedand back
garage,
in Brian's
thetwofilledthe blockwith
pafts-EagleH-beam5.400-inchrods,forged
pistons,and a zero-balance
4340 crank,
w h i c hc o m b i n etdo y i e l d3 4 7 c i a n d a 9 . 5 : 1
compression.
A pairof AirFlowResearch
t85cc aluminum
headsweretorquedatopfreshCometichead
gasketsand securedusingARPfasteners.
A
Lunatibumpsticksportingvalvedurationof
224 degrees
on the intakeand 232 for the
(bothat 0.050-inch
exhaust
lift)wasslipped
into place.Crane1.6-ratiorollerrockerswere
selectedto lift the intakevalves0.535 inch
and the exhaustvalves0.544 inch before
landing
themcarefully
on theirseats.
To match the rotatingassembly,a zerobalancedCenterforce
aluminumflywheelwas
fastened
to thetailof thecrankandmatedto a
Dual-Friction
Centerforce
clutch.Beforenesting
the new enginebetweenthe struttowers,a
Cantonwindagetray and road-race-spec
oil
panwereboltedto the bottomof the block.
SKIN SHREDDER
Steveknewthat suchan enginemust be
fed properly,
so his347 sucksthrougha K&N
filter,a 76mmC&Lmassairflowmeter,and
a FordRacing65mm throttlebody.The air
is distributed
to eachcylinderby the engine
compaftment's
centerpiece-a
BBKSSIintake
manifold-while
93-octanefuel is transferredfromthetankby a Walbro255-lphpump
to BBKfuel railsand 30-lb/hrinjectors,
An
MSD6AL box sendssparkthroughLiveWires
9mm ignitioncablesto eachcylinder.
Combustionis exhausted
throughBBK longtube
headers,
a matchingH-pipewith cats,and
three-chamber
Flowmasters.
In anticipation
of
futuresuspension
components
fromMaximum
Motorsports,
Stevejettisonedthe tailpipesin
favorof turndowns.
108 M0DIFIEDMUSTANGSANDF0RDS.COM
August2008
THE DETAILS
Stevelonf,acre's'93 Mustanf GT
ENGINE
Ford347ci strokerV-8
EagleforgedH-beam5.400-inch
connecting
rods
Eaglezero-balance
forgedsteelcrank
pistons
SRPforged9.5:1compression
LunatiPN5125 hydraulic
rollercamshaft
Crane1.6:1rollerrockers
AFR185ccaluminum
cylinder
heads
Cometicheadgaskets
BBKSSIintake
FordRacingPerformance
Parts(FRPP)
65mm
throttlebody
C&L76mmmassairflowmeterand
aluminum
inlettube
K&Nfilter
Holley30-lb/hrinjectors
Walbro255-lphfuelpump
BBKfuelrails
MSD6ALignition
LiveWires
9mmsparkplugwires
CantonT-sumproadraceoil panand
windagetray
Griffinaluminumradiator
Flex-a-lite
electriccoolingfan
400 hp,450 lb-ftof torque(estimated)
EXHAUST
BBKl%-inchlong-tube
headers
BBKH-pipew/catalyticconvefters
Flowmaster
three-cham
ber mufflers
w/turndowns
R E AR EN D
FRPP
aluminum
driveshaft
FRPP
3.55gears
SUSPENSION
Front:FRPP"C" springs,Hotchkis
plates
alignment
Rear:Hotchkis
rearupperandlowercontrol
arrns,KennyBrownsubframeconnectors
(Maximum
"GripBox"pending)
Motorsports
BRAKES
Front:FRPPM-2300-Kbrakekit, l3-inch
rotors,PBRtwo-pistoncalipers
Rear:FRPPM-2300-Kbrakekit,
11.65-inch
rotors
WHEELS
Front0E'03 Cobra
five-spoke,
17x9inches
Rear:
0E'03Cobra
five-spoke,
17x9inches
T IR E S
FrontKumho
Ecsta
Supra
7L2,P255/40ZRt7
Rear:
Kumho
Ecsta
Supra
7L2,P275/40ZRL7
INTERIOR
AutoMeterS-inchtach,l%-inchwatergauges
temperature
and oil-pressure
EXTERIOR
H.0.Fibertrends
2%-inch
cowl-induction
hood,
custom
front.rear.andfender
emblems
TRANSMISSION
Borg-Warner
WorldClassT-5five-speed
manual
Hurstshifter
Centerforce
Dual-Friction
clutch
Centedorce
aluminum
flywheel
110 MODIFIEDMUSTANGSANDFORDS.COM
August2008
AFTERl4YEARS
OFDAILYDRIVING,
OPEN-TRAC
K
EVENTS,
AND
AUTOC
ROSS
ES,
THECARWASA
SURVIVOR
The factory five-speedgearboxwas
retained
to feedpowerto a FordRacing
aluminum
driveshaft,
whichtwistsa 3.55
gearset
inside
thefactory-installed
8.8-inch
'03
rearaxle.Steveshoesthefront Cobra
wheelswith KumhoEcstaP255l402R1,7
tires.Therearswear275mm-wide
soles,
a n d a s y o u m i g h ti m a g i n ea,r e r e p l a c e d
regularly.
Afterevefihingwasbuttoned
up,Steve
droveto Dynospeed
in Memphis
to have
an SCTchipcustom-tuned
to ensurethe
purrssmoothly
engine
fromidleto redline.
Thefolksat Dynospeed
foundthatduring
t u n i n gt h, ee n g i nw
e a sa l i t t l eh u n g r i tehra n
Stevethought,
sinceit hada tendency
to
run lean at wide-open
throttle.So they
postponedany full-throttle
dyno runs
untilafterthe fuelsystemwasupgraded.
CFIEATIVE
LICENSE
S T E V EL O N G A C R E ' S ' 9 3M U S T A N G
GT
However,
Steveestimates
the enginemakes
400hpand450lb-ftoftorque
whenproperly
fed. We don'tdoubtit, Thebrutalexhaust
thumping
beneath
the floorpan
recalls
the
"Panama"opening
drumbeatofVanHalen's
withthe ampscranked
to 11. Theengine
lightsthereartireswiththeslightest
tickleof
the throttle,
at anyspeed.You'llfind Steve
Longacre's
recentartwork
displayed
in front
of hishouse.
lt'sappropriately
titled"Burned
Rubber
onPavement."
GmD
ENTERFRIENDAND
ENGINE.BUILDER
BRIANBAKER,
WHOWOULDAPPLY
HISMETICULOUS
ATTENTION
TO
DETAIL
AND
THOROUGH
KNOWLEDGE
OF
THESMALL-BLOCK
FORD
TOSTEVE's
NEWPOWERPLANT