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SAC modified cars go on test at Gerotek

Broadcast date : 23rd July 2006

The theme for the SAC Polo 1,9 TDi is subtlety. While itís fitted with an aftermarket exhaust, deeper spoilers and side skirts, you have to look twice before you notice this. 

The aftermarket hop-up business has been notorious for thumb-suck performance figures designed to entice new customers. SAC employs independent road tester and journalist Adrian Burford to compile test figures on all its products. Thereís no arguing with an electronic GPS system.

Adrian conducts all his testing at the Gerotek facility near Hartbeespoort dam. He is meticulous in his approach and runs tests at the same time of day, on the same test strip to minimize the variables.

But the larger VNT turbo Plug-and-Play chip, exhaust and air-intake upgrade results in a power increase from 96 to 125 kiloWatts.
The comparative standard figures are from Adrianís test on the standard Polo at Gerotekís high altitude facility.

Despite SAC having grown from a one-man show in the 1980ís to a nation-wide franchise, founder Steve Fischer still does most of the development work on all the kits his firm supplies.

SAC has moved away from one-off specialist modifications to tried-and-tested kits, to minimise the chance of come-backs. The whole package has an aura of factory-level class.
The impromptu drag race with Hendrik would not take into account reaction time off the start line, but rather through-the-gears performance. Hendrik was in the stock Polo 1,9 TDi, which is no slouch. SAC were convinced their modified Polo diesel was close to Golf GTi levels of performance, which, for a cash outlay of R18 000, would be pretty impressive.

And here the SAC carís superiority was not in doubt. SAC says there is slightly more lag on their turbo, with bigger exhaust and compressor housings.

But our experience of the car on the road showed no such thing, as the SAC Polo pulled strongly from 1500 rpm.

And subjectively at least, the little rocket is definitely in Golf GTi league.
The Jeep Wrangler can be viewed as the hotrod of the SUV market. Itís a pure fun machine, brash, raw and unsophisticated.

It uses an old-tech straight six-cylinder engine thatís perfectly in-keeping with its red-neck charm.

That includes, bull-bars, spotlights, minimal creature comforts and rather weird weight distribution, with the driver sitting nearly over the rear wheels and a long snout stretching way out front.

This one was an automatic version, but quite naturally fitted with a proper low-range transfer Ďbox

We almost expected Hendrik to give a "Yee-Hah" rebel yell as he went rock climbing with Steve Fischer.

Steve says that getting a big power-increase on a simpler motor like the Wranglerís is relatively easy for a tuner, as thereís plenty of room for detailed improvements. Tried and tested hot-rodding techniques are the keynote here.

The Wrangler kit, as tested independently on the automatic test mule, gives a power increase of some 35 kilowatts. It runs an 11,4 second 0-100 time, gives an impressive improvement in the overtaking zone, and tops out at 176 km/h.

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