Corsa-B.uk - Vauxhall, Opel and Holden Corsa B Owners Club

Hi am looking 2 fit a f16 box to my c20xe project.
Were and what car will i get 1 from. also how do i tell if its a CR or WR
i have been offered 1 from a mk2 astra gte but unsure if its CR or WR, theres no marking on it
Cheers

id go for a cr box as the wrs are more suited to diesel engines

if its out of a gte it will be a f16cr only fitted f16wr to standard 8v calibra and cav and they are marked next to the 5th gear housing in the wheel arch very difficult to see on a dirty gearbox to 0to 60 will be immense on that box but your fuel economy and top end wont be the best

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He Knows His poo Lol Fair Play lol

Cheers 4 that, il get the box from the gte

the best box f/d combo is use the close ratio cluster from an f20 in the f20 casing but fit the final drive and pinion gears from an f16 wide ratio box, basically the wide ratio boxes have a better final drive for acceleration, and the close ratio boxes dont but coupled with the close ratio cluster it gives a sport feel to the drive but keeps economy. so marrying the biggest final drive and pinion you can to the close ratio cluster is your best bet for performance. you can actually work out the final drive and pinion sizes, count the teeth on the f/d then divide that number by the number of teeth on the pinion gear. i had the combination i just described in my old redtop nova and that used to do 13 sec quarter mile runs ! so i know it works ! hope this helps fella