Option1Garage.com.au

Bit more background on the R31 - it was a project that we came up with to see what sort of power we could get from a std RB20 without spending a fortune - with just bolt ons . So we bought the R31 , cheap car to put it in , made sure it was a base model for less weight . I made up the manifolds , dumps , intercooler piping etc all myself from scratch - has 3" dumps into 4" engine pipe then back to 3" over the diff and out . The manifolds were kept as short as possible the idea being to keep good exhaust flow into the turbos . Originally it was set up with the turbos , Haltech E6K ECU , PWR front mount with tanks from Fantasy , fuel pump upgrade and Malpassi Reg - other than that completely standard . In that spec it had approx 320 rwhp @ 13 lb boost and ran a flat 13 sec 1/4 in complete street trim - we were pretty happy ! The car was a great sleeper .... had alot of fun on weekends on the Gold Coast with it till it got known . It ran in this spec for a year with an 8000rpm rev limit with no problems at all .

Hi all - I am Paul from Option1Garage and I built the R31 with the twin turbos pictured above - Just goin to go through and tell the truth about some of the questions on this thread - Ricky from Fantasy did not have alot to do with this car except for the plenum and injector upgrade - He did not build it . yes it was a completely standard jap import motor and it was never expected to hold out at 18lb ...... The car has since had a set of cosworth forged pistons fitted and head recoed but other than that motor is std spec - It ran 12.2 @18lb boost with the motor dying , has never been back to the track since but i think a high 11 sec pass would be a reasonable guesstimate with the fresh motor - and no it doesn`t need nos ..... holds good boost between gears or it wouldn`t run that sort of time would it ?