Best gearbox for 1.6 16v nova?

[twin40s]

I'm building a 1.6 16v nova and need some help with what gearbox to use?

[twin40s]

i was going to fit a f13cr standard but have been offered one with a 4.18 crown and pinion what would be the benefit?

[garyc]

it will accelerate faster with 4.1 than a 3.7 or 3.9 usually found in the F13CR

[twin40s]

I've heard it knocks the top end down is this correct and is it by alot ?

[swedge]

cr boxes do knock top speed down a bit but when do you do over 100mph anyway? non cr boxes are better for motorway cruising due to lower revs at cruising speed

[shed-on-wheels]

i had a f15 on mine and it went well enough dude

[Southie]

F15cr boxes are fine tbh I had one on my old C16xe, what is your car being used for i.e road, track or sprints?

[twin40s]

Track and road.

[Connor]

Those f13cr's with the 4.18 fd are quite hard to get hold of, and thats what i would run, but top speed will be limited quite abit

[twin40s]

How much by does anyone have one of these boxes on the car?

[swedge]

i think stuart has a gearbox calculator thing on his sig

[twin40s]

sig ?

[twin40s]

Would having the f13cr with 4.18 fd make it slower or faster at a 1/4 mile run than one with a standard f13cr?

[brucer]

faster for accelertion purposes, would top out about 120 (when i calculated it on stu's sig) but you wouldnt do that on the strip.

easiest way to get one with a 4.18 is buy the f13cr and an f10 with the 4.18 Final drive and swap it. im on the look out for a cheap f13wr so i can take the 5th gear off that so cruising is at a good rev range.

[Peanut_119]

sorry to hi-jack but whats the fd of a f16cr from a 1.8 cav? as i could do with a longer 5th as it sits at 3k at 70mph

[twin40s]

Cheers so it should be quick for the strip hope so now as i just got one.