The KOVAL EVO is one of the most successful roll racing cars in Australia and has seen a few iterations, owners, and a couple of catch cans over the years, as well as 80-90PSI of boost and up to 11,000rpm.

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At GTR Fest, where Andre pretty much only looked at EVOs (he knows his type) we caught up with Dom Rigoli of Tony Rigoli Performance (TRP), a world-famous in Australia full service workshop with a proven history of getting incredible power out of many platforms including this venerable EMtron controlled 4g63.

Dom's answer here are short, sharp and accurate covering a range of topics from dry blocks, billet vs cast, head cylinder sealing with bronze aluminium rings aka fire rings along with some insight into what a car like this might do if it was fully setup for drag racing rather than the street too.

Previously, the car had made 1200hp at the hubs but now pushes over 1500hp and uses methanol or ethanol blends depending on the legalities of the event/location with 8.8 passes so far and plenty more to come if the owner wants to upgrade the car to safely compete at 1/4 racing, which are requirements that differ from roll racing events.