NATHAN DYSON 1987 HOLDEN VL COMMODORE
> BRISBANE, QLD
WHILE the VL Commodore is as Aussie as Hawkey slugging schooners at the cricket, the fact a Nissan 3.0-litre single-cam inline-six propelled them was controversial for many back in the day. However, over the past 30 years many have grown to love the insane power that can be extracted from these Japanese donks, while keeping everything under the bonnet and retaining good street manners.
One such punter is Queenslander Nathan Dyson, who carries the keys to this sedatelooking VL Commodore SL. Don’t be fooled, though, as the Ice Blue machine has gone as quick as 9.87@141mph!
“I had an R31 drift car that had a ’cage and was pretty quick, but I decided I wanted to go fast,” says Nathan. “I started with a dead stock base model VL, which I found on Facebook for $3000. It was completely grandpa-spec and only had 98,000km on it. Someone had attempted to respray it at some point, but apart from that it really hadn’t been touched.
“I took the engine from my drift car and then bought the transmission and diff from a crashed VL Turbo to put in it. It’s a pretty simple combo, but it works.”
The single-cam RB30ET runs a stock crank but has been fitted with Spool rods and CP slugs, while the head copped over-size valves and a JW Automotive cam to help the breathing. The forward-facing plenum is a Rajab unit, sucking up to 35psi boost from a Gen II Garrett GTX3582 snail through the 100mm-thick frontmounted air-to-air intercooler, with a Turbosmart 45mm external gate helping to control boost.
“We welded it to the exhaust housing to try and help control boost,” explains Nathan. “I used to have a Gen I GTX3582 turbo but I upgraded when I fitted the new cam and cylinder head.”
The VL drinks horsepower-friendly E85 corn syrup, supplied by two Walbro 460 pumps in the boot-mounted surge tank, while 1000cc ID1000 injectors living in the BPP fuel rail get it into the 3.0-litre six up front. It’s burned by six LS1 coil packs, as the stock dizzy has been deleted, and is now used as a timing sync for the Haltech Platinum Sport 2000 ECU.
“In the VL, the combo made 510rwhp, but it made 580hp in my drift car as that used a manual gearbox, so the 3800rpm Dominator convertor is costing us a little bit,” offers Nathan.
While many would expect to see a Turbo 400, Jatco or perhaps a Powerglide trans behind such a stout RB30, Nathan’s VL rocks a threespeed Trimatic!
“It had been rebuilt by the guy I got it off, but it definitely surprises a few people,” he says. “I can’t believe I ran 9.87@141mph with a Trimatic, off the footbrake, and with only 5psi off the line!”
Behind the tortured ‘Traumatic’ is a VL Turbo Borgwarner diff running stock 28-spline axles, although both the ’box and diff are likely to cop some attention as Nathan looks to step up the combo to chase eight-second slips.
“I don’t want to tub it, but I’d like to shorten the diff and put billet 31-spline axles in it, as that will let me run a 255 M/T tyres out the back all the time. Hopefully I’ll rebuild the motor in a couple of months and put a two-speed ’Glide in it, then go towards the eights... and I’d love to put a 3.2-litre Nitto bottom-end in it!”
He might also need to upgrade his number plates from 747 to SR71!