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Darren
was introduced to drag racing when a mate from work
invited him along to the '96 Nationals at Calder. After
a few more trips to the drags he plucked up the courage
to give it a go himself in his then street registered
1992 VP SS Commodore. At the first meeting Darren had
to borrow a helmet from a friend, and at the end of
the night he had netted a 15.1 sec ET and a burnt clutch.
Not bad for the first time out and in a 100% stock 5lt
Commodore. With the addition of a twin 2.25" HM exhaust,
the ET dropped to 14.85 secs and he was then well and
truly hooked on drag racing.
The need for speed and bitten and
no sooner had Darren started sourcing parts, plans were
under way for a new engine. A 326ci bottom end was put
together and mated with a pair of COME modified cast-iron
heads and a 'largish' COME hydraulic cam. With the Holden
EFI manifold, Darren set a new personal best of 12.92
secs.
Darren
continued to race at Calder street meets and one night
missed 3rd gear on all but one pass, getting it stuck
on the gate between 1st and 3rd. The next morning the
box was out and the hunt for an auto was on. Once an
auto was sourced and fitted, the engine was fine tuned
with the computer program on COME's chassis dyno and
next time out the VP SS Commodore was in 12.7 sec range.
After running at many street meets,
Darren decided it was time to step up for the 2000-2001
ANDRA season. A new top end with a Harrop manifold and
1000cfm Holley T/B was added to the combo. Coupled with
head modifications and a new set of headers saw ET's
drop into 11.9 sec range. Darren made a trip to Adelaide
and all the national open meetings at Calder, reaching
the ¼ finals at a couple of meetings and go a few rounds
at others. At the 2001 Nationals, a fuel surge problem
put Darren out, trying to run the least amount of fuel
in the big 85lt Holden tank. Winter '01 upgrades involved
a boot mounted 19lt fuel cell with a Bosch Motorsport
pump and filter. Another revision to the tune up saw
the car pick up to 11.72 secs on a slippery Calder street
meet track.
After
a Victorian Drag Racers Club day at Calder in January
'02, one of the little butterfly retaining screws in
the 4-barrel throttle body decided it wanted to jump
out and cause some damage to the motor. When the motor
was pulled down it revealed no real carnage. A damaged
piston with a bolt imprinted into the surface and a
squashed head on the screw. Luckily the cylinder head
or bore were in good shape.
So the old 326ci motor was retired
to the garage floor and is sitting there awaiting call
up if it is ever required. Rather than bolt it back
together with a new piston it was seen as an opportunity
to step up even further and a new engine was sort. Darren
got in touch with Sam Blumenstien from COME racing.
He offered to build the new bullet and took care of
the motor while Darren went about making the rest of
the car safe and ANDRA legal for 10.99 and faster. Modifications
this year included the addition of mini tubs, an 8 point
roll cage, new engine, rebuilt and strengthened trans,
modified rear end, bigger tyres on new Cragar wheels,
new maxi-spool in the diff and a hidden wiring loom
in the engine bay. Infact, it only took 3 weeks of many
late nights and weekend work to put the car back together
from a rolling shell and unpainted roll cage.
The goal was to have the engine ready
for the Holden V's Ford show at the Melbourne exhibition
centre in April '02. The engine was fired in the car
on the Tuesday night before the show. So far the car
has run 11.006@125.4mph. The potential is there for
a 10.6 - 10.7 pass once Darren can get some good start
line traction. The 1/8th mile time on the 11.006 pass
was 7.02 secs with a 60' time of 1.519 secs.
Darren's
short term goals are to run a 10 sec pass with the full
steel body, standard suspension and rear end with the
hydraulic cam before stepping it up to include a solid
roller cam and refit a fiberglass bonnet he has at home.
With a 10 sec pass, Darren will make
the move from Super Street to Super Sedan, running mid
to low 10's, and then eventually look at tearing the
rear end out of the car for a 4-link, tubs and live
axle setup to make another move into Super Stock.
Darren would like to thank all his
sponsors for their support and assistance;
- Sam and Issy at COME
Racing Melbourne 03 9571 4204
- Richard, Phillip and Andrew
from Davies, Craig. Melbourne 03 9646 3051
- Colin Johns at Tradematics.
Geelong 03 5248 7907
- Matt Turnbull www.injectedholdens.com
0418 313 784
- High
Energy Oil Pans. Melbourne 03 9794 9044
- ARRK Silhouette (Australia)
Pty. Ltd. Ph: 03 9819 4422 (Stereolithography Rapid
Prototyping) www.arrk.com.au
- Philip Sodestrom, PTC (Performance
Transmission Components), TCE (Torque Converter Engineering)
03 9879 7970
- Supa Trick Diffs. Dandenong.
03 9793 1915
- HPC
Leongatha Victoria. 03 5662 4719
- Pacemaker Headers
- Rainbird
Motorsports Solid Aluminium engine mounts.
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| RACE
NUMBER |
2362 |
| COMPETITION
CLASS |
Super Street (S/ST),
Super Sedan (SS/A) |
| BEST
PERFORMANCE |
11.006@125.4mph
(Street Meet Calder 12-07-02) |
| VEHICLE
|
Holden Commodore
VP SS / GMVPSS |
| ENGINE
|
383 ci Holden by
COME Racing, COME alloy heads (VN style), Ultimate
ports - 580+Hp potential, Ferrea stainless 2.05"
intake and 1.60" exhaust valves, chrome moly retainers,
1.450" dual valve springs, 7/16" screw in studs,
guide plates, 3 angle valve seats, chambers equalized,
extruded alloy roller rockers 1.6:1, K1045 Duraflex
steel 4-bolt main bearing caps, main stud kit and
line honed. Block is bored and torque plate honed,
decks machined square to tunnels, decks machined
for and fitted 'O' ring grooves for Ridgecrest copper
head gaskets. Oiling system is modified to promote
increased oil pressure, block is clearance ground
for our nodular billet 383ci crankshaft and 5.7"
rod assembly. High Volume cast iron oil pump along
with Rollmaster Competition series timing chain
and gear set. Hardened pushrods and hydraulic roller
CSBR-436 COME camshaft, COME 383 stroker crank,
COME 'I' beam 5140 steel conrods with ARP 2000 series
capscrew bolts, Keith Black pistons and moly rings.
Assembly balanced with ROMAC steel harmonic balancer
and driveplate. Internal balancing with mallory
metal. COME dual 58mm throttle body and tunnel ram
style intake manifold. Hi flow fuel injectors (24Lb). |
| POWER |
492Hp (366Kw) @
6000 rpm; 464Ft-Lbs (629NM) @ 5500 rpm |
| LUBRICATION |
Hi-Energy Pro-Ultimate
sump Shell Helix Plus oil |
| EXHAUST |
Pacemaker 1.75" primaries, 3" collectors to twin
3" mandrel system
|
| COMPUTER |
Holden VS 32bit
Delco tuned by COME Racing, wiring loom modifications
by Matt Turnbull. www.injectedholdens.com |
| TRANSMISSION |
Full manual Turbo
350 by Tradematics Geelong TCI and PTC Components,
B&M ProStick, B&M Transmission Cooler |
| CONVERTER |
TCE 5200rpm 8" |
| COOLING |
Davies, Craig electric
water pump and controller. 16" thermo fan and standard
Holden radiator |
| DIFF |
Holden I.R.S. 4.11:1
ROMAC maxi spool |
| CHASSIS |
Holden VP SS with
8 point roll cage. Full steel with no lightening
techniques used |
| SUSPENSION |
Front - 90/10 wet
struts with VL 6Cyl springs, rear - 30/70 custom
shocks and hand made springs |
| BRAKES |
Front - VT twin
piston on Harrop hubs, rear - Std calipers with
vented rotors and Ultimate pads,½" x 3" long wheel
studs on 4.75" Chev PCD |
| WHEELS
& TYRES |
Front - 15x3.5"
Cragar Drag Star II rims with 5.60 - 15 Nangkang
conventionals, rear - 15x8" Cragar Drag Star II
rims with Hoosier 29x9x15 slicks |
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