A RELIABLE, difficult-haulin' manufacturing plant is 1 of the keys to successful drag racing, that'second for sure, together with the six-pack which powers Jimmy Underwood'second now good-established D/A Holden/Fiat must live the respond to any hot-rodder'sec prayers.
The EJ block being used inwards the Altered get-go tasted competition about Easter '67 inwards Jim'sec C/MS-winning FX sedan at a dirt strip coming together at Bendigo. Next fourth dimension around it had institute its mode into his "Junior Mr. Holden '67" win-ning FX ute.
The same ute fronted to the showtime Calder ding early on last year, only it before long became apparent that it would accept to live running style to a higher place its capabilities, course-wise, and so Jim turned about to his long-time buddy, Trevor Taylor, in addition to said: "We're going dwelling house to construct 1 of them there Fiat Altereds, male child, together with to hell amongst the ute!"
Home to the Victorian duad is Gunbower (congratulations to the outset one to discover it on the map) together with through the long Echuca winter months, plans were drawn up in addition to blow torches blew, night afterward nighttime, until good past bed-fourth dimension. Four in addition to a half months of firm toil together with pocket lightening to the melody of $1400 resulted in a creation named "The Bushman".
Back they came to Calder in August of '68 amongst the novel charger in tow to accept it out alongside the nigh unassailable "Li'50 Bounty Hunter" Holden/Fiat of boyfriend Echuca driver, Maurie Mundie. But it was champagne all circular at the shut of business concern on that first Sunday in August later on "The Bush-human" cracked it for a thirteen.28 beam-cut course win, offset time out nevertheless! Which exclusively lends farther weight to that "sometime" adage: "Once a good donk, ever a proficient donk!"
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| BIRDSEYE opinion of Jim Underwood'sec Holden/Fiat altered shows make clean cockpit layout— Fiat steering box is mounted to rollcage crossmember, aluminium panelling along sides effectively seals cockpit lower one-half from mechanicals in addition to as well serve every bit "wind-tunnels". Pic superlative of page shows Jim in addition to "the Bush-human" at Calder Dragway leaving the job for some other low-thirteen s. trip downwardly the quarter. |
Anyhow, that's the "subsequently" of the picture, just what went on earlier? You're in all probability wondering.
Chassis design was left zo Trevor, who came upward alongside a fairly lite, just extremely stiff, spiderweb-like matter of lin. x lin. square subway. The ground of its force lies in the paired longitudinal struts, braced by both conventional for-mers together with mechanical fittings including the motor as well as the scattershield.
High comp Weslite pistons in addition to a lx 1000. shave for the caput accept resulted inwards a good for you 12-to-i compression ratio, while the Perfectune exceptional stage three head runs one.five inch too ane seven/xvi inch. inlet as well as exhaust valves respectively. Rejetted, triple 'Olden-type Strommie.sec meter the 115 octane diet in extra big doses in addition to an EH fuel heart drives the gas up to them.
A Scintilla Vertex magneto keeps the animal self-contained electrically, apart from the "tranny" batteries which ability the impulse tacho.
The Lukey banana branch extrac-tors drain through into a dwelling-built set of aluminium meggas, which are a proficient l percentage lighter than their steel counterparts. It's this form of fastidious attending to the weight ingredient that has turned the rig into a 1050 lb. scale tipper, too the span figure that there'second more than lb. to come off nevertheless!
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| FIAT Topolino torso con-tributes eighty lbs to all-upward weight ticket for Bushman, which stands at 1050 lbs. Body has been finished in Brimstone Green lacquer —looks peachy! Power comes from Holden EJ block bored to 155 cubes, function-ning 12 to 1 pistons too full residual chore. Head is phase iii Perfectune with triple Stromberg carb ready-upwardly. Little screamer is blood-red-lined at 6500 revs too con-sistently turns the quarter inwards low-xiii seconds. |
A iii together with iii/16th inch. overbore stretched the EJ block to 149 cubes, and bhp output is estimated to live good upward over the one bhp per cu. in. grade at 175 bhp. Redline on the tacho is strictly adhered to at 6500 revs, at which signal the Wade 140 grind cam is giving bags of ability. A fully balanced factory (past Paul England) has kept the bottom-terminate nearly problem-complimentary throughout its life inwards iii unlike cars.
Flywheel weight was shaved back considerably before the X2 clutch was mailed into place, as well as the synchro rings inwards the FJ box used were place welded to forestall those moment cog pick worries that Holden boxes frequently seem to take a mortgage on. Only moment in addition to elevation gear are used for the 440 in addition to their choice is handled by a Landspeed flooring shift. The modded Holden tailshaft measures 15in. inwards length together with turns a 3.89:1 FC middle inwards an FJ housing.
The mill sits at a legal 25 percent aft on the 98in. wheelbase too with the lightweight Anglia front end-stop used, weight transfer is all that could be desired.
Five leaves were removed from the beam-axle break too the A-bar split up into a couple of radius rods — this, plus the Vauxhall Viva tellies too 6in. of inbuilt positive castor on the cut-downwards VW hoops, makes the lilliputian mover track like a bullet — in addition to invariably come up to a halt inward a directly job.
Morris Major 14in. rims have been grafted to the VW centres upward for'ard and wearable 5.20 x fourteen rubber, white 6in. rimmed wheels in addition to 600 x xiii Dunlop racing bags hang off the firm-mounted raise axle.
FE main-cylindered FJ drums institute the whoa industrial plant at the rear — the organization being hand lever activated.
Four bolts make the torso to the frame too it'second a elementary affair to de-Topolino the rig, whenever necessary. Finish is an centre-popping Brimstone Green laquer, complemented past an uncluttered sign-writing task. In an endeavour to shell air current resistance, the firewall has been trimmed at either side from summit to bottom too a duad of aluminium "wind tunnels" mate up to the termination gaps as well as taper downwards to drop dead nearly the bring up bike arches. All this also keeps the cockpit a picayune less omen to the elements without taking upwardly as well much infinite.
Pilot'second perch is a featherweight but comfortable Hillman Imp bucket, in addition to the Fiat steering box is driven past a home-built 8in. diameter 'bicycle.
The tacho sits inwards the breeze directly inward front of the driver on the bulkhead, while temp together with crude gauges have been snuck into the uppermost' corners of the current of air-cover surroundings. The driving compartment has been good planned in addition to everything falls readily to manus when needed.
There must live a veritable horde of enthusiasts around who volition order you lot that tuning the mill j-u-u-u-second-t ... and then! tin brand that winning divergence in addition to much credit for the Bushman'sec already formidable reputation must become to the third fellow member of the team who'sec res-ponsible for all those critical, endless adjustments, Bill "Chimpy" Anderson. With Bill on the correct terminate of sin. open up-ender, competitors beware!
The "Bushman" may not be Competition Elimiator material nevertheless — changes inward a V8-type mode could be occurring presently — merely for certain it has given the D/A ranks a existent shot inwards the arm at Calder, in addition to the fans tin can hardly await for the "petty fellas" to plough it on come the starting time Sun of every month!
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