> ARBY CHAT
SEVEN-SECOND STREET BARRA
QUEENSLANDER Shane Elvin has become the first person to get a Barra-powered street car into the sevens after going 7.8@167mph in his Rambler Hornet (below).
The car weighs in at 3310lb – it’s all steel and glass – and the Barra engine was built by Atomic and is fitted with a Powerglide trans and Haltech Elite 2500 ECU. The motor is tuned by Justin Simpson at Horsepower Solutions, and on the seven-second pass was running 39.8psi of boost from the 82mm Precision turbo, on E85 fuel straight from the pump at United.
“The combination uses an air-to-air intercooler, and even with CO2 on the gates it does fall away over the run,” says Justin. “The car has actually run 172mph on a previous pass, and with the boost we are running, the turbo would be out of steam. On the dyno, the car makes 850rwhp, but clearly the trap speed shows more.
“We usually try and turn it up at the track rather than the dyno. We did try it on a smaller tyre but had no luck, so we have gone back to the 275 radial.”
GOOD OR CHEAP – PICK ONE!
WHILE not for street use, it’s hard to go past some new pieces of Aussie-made speed equipment from Queensland’s Tremaniac Racing – they’re sheer porn! The new FW1 cylinder heads and Nxtgen intake manifolds for small-block Ford engines are the bomb.
Built exclusively in billet, initially for the 460ci small-block Ford in Tim Cross’s Cortina race car (below), the heads were designed in conjunction with Dandy Engines using Glidden-victor heads as a reference, as a replacement for Windsorstyle heads.
These heads are for race use only, in boosted applications. While mostly solid, some are waterdrilled (not jacketed), and, while they will take a stock half-inch head stud, they are also available to accept a 9/16in and can be had in six-boltper-cylinder configuration for aftermarket blocks. Even with five bolts per cylinder, they offer enormous clamping pressure.
On a bench, they flow 400cfm at 800thou lift on the intake, and 285 on the exhaust at 800thou, with a 295cc intake volume and 58cc chamber.
If you are serious about going fast, give Aaron Tremayne a holler. RRP is $7500 bare.