Mods and Con­se­quences

Mod­i­fy­ing Evos is big busi­ness and gains can be huge. Here’s how to nav­i­gate what’s avail­able

Classic Car Weekly (UK) - - THIS WEEK - Richard Dredge

Mit­subishi Evo IV, V & VI

As an all-con­quer­ing rally weapon you might think there’s prob­a­bly not much you can do to im­prove a Mit­subishi Evo. How­ever, if you’re keen to use your Evo and it’s al­ready a bit tired, as most of these cars are, there are plenty of things you can do.

A quick bit of his­tory first though. The orig­i­nal Lancer Evo ar­rived in 1992 and the Evo IV that we’re cov­er­ing here ap­peared four years later, in au­tumn 1996. Whereas the first three gen­er­a­tions of Evo shared a plat­form, the Evo IV’s was all new. This was car­ried over to the Evo V and VI, which made their de­buts in 1998 and 1999 re­spec­tively; the lat­ter was the first Evo to be of­fi­cially im­ported into the UK. The Evo V fea­tured re­vised bumpers, a bon­net vent, a wider track, big­ger brakes and tougher en­gine in­ter­nals, while the Evo VI brought a larger in­ter­cooler and tougher pis­tons. When the Evo VII was re­vealed in 2001, it ush­ered in an­other all-new plat­form which was then used for the Evo VIII and Evo IX.

All these Evos were fit­ted with a tur­bocharged, in­ter­cooled four­cylin­der en­gine co­de­named 4G63. Rated at 276bhp, it gave a 155mph top speed with 0-60mph pos­si­ble in less than 4.5 sec­onds, with four-wheel-drive fit­ted as stan­dard help­ing to keep the wheels planted in tricky con­di­tions.

Go­ing beyond 350bhp you’ll need an up­graded fuel pump, or else the en­gine will run lean be­cause of poor petrol sup­ply. One of the eas­i­est ways of up­ping power is a boost con­troller; man­ual ver­sions (fit­ted un­der the bon­net) are avail­able for less than £50, while dash-mounted electronic con­trollers cost £100 up­wards.

Once you top 400bhp you’ll need to up­grade the pis­tons and con-rods; the stan­dard trans­mis­sion is safe to 500bhp. While the crank­shaft is fine for up to 400bhp, you can fit a long-throw item that will take the dis­place­ment up to as much as 2.4 litres to im­prove torque as well as power. Take this route and you’ll need to find at least £8000 to do the work prop­erly.

If you want big power ( you can squeeze up to 1000bhp from an Evo en­gine if you have a mas­sive bud­get) you’ll need a big­ger tur­bocharger. From the Evo IV a twin-scroll turbo was fit­ted so it’s al­ready pretty ef­fi­cient, but a big­ger unit is needed if you want to go beyond the 400bhp that the stan­dard item can sup­ply. Bud­get £3000-plus for a kit with man­i­fold and associated pipework, but in­crease the size of the turbo and you’ll also in­crease the amount of lag.

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