Cheap tuning for a Hilux engine ?

[B2B-Steve]

Hi (please move if it the wrong section)

I've got a 2002 Metrocab thats fitted with a 2,446 cc Toyota 2L-T turbo diesel I4 & auto box that I understand is the same as fitted to a Hilux ? I'm looking for any cheap (yeah ok free would be better) tuning tips to increase the bhp from 88 ? We are doing a banger rally to Barcelona in the summer and theres a heck of a lot of hills between Kent & Spain !

Its going to be a 1 way trip for the ex London Cab as a local Spanish scrappy takes them before we all head down the bar. Hence the reason for free tuning tips ect.

Oh and its being transformed into Thunderbird 4 and all for Charity Mate lol

Cheers Steve