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dermot-r32
29-11-10, 19:54
well lads, anyone tell me what the ratio's on two ways stand for i.e 4:1???:(
i want a 2way but dont understand the ratios
cheers lads

jonny b
29-11-10, 20:12
1 turn of the prop= 4 turns of the wheels.. is an example of a 4:1

Stevo
29-11-10, 20:21
3.9 real long gearing slower accelerating
4.1 gearing a bit shorter slightly quicker accelerating
4.3 shorter gearing quicker accelerating

4.3 you would be pulling 3rd gear around most pd street tracks (near standard power)where a 3.9 would'nt have the legs for 3rd unless you were flat out on long track like mondello carrying plenty of speed..
Higher up you get to a ie 4.9 you get the quicker acceleration and higher gear you can pull

Dunno if that make sense to ya ha :o

slithertooth
29-11-10, 20:25
you get the final drive ratio from your crown wheel= 4 and pinion =1 as jonny said , but if your buying a new 2way to fit your car ratio will be whatever's in your car, it's only if your buying a cased diff that you'll be told the ratio! if that's any help

dermot-r32
29-11-10, 20:26
3.9 real long gearing slower accelerating
4.1 gearing a bit shorter slightly quicker accelerating
4.3 shorter gearing quicker accelerating

4.3 you would be pulling 3rd gear around most pd street tracks (near standard power)where a 3.9 would'nt have the legs for 3rd unless you were flat out on long track like mondello carrying plenty of speed..
Higher up you get to a ie 4.9 you get the quicker acceleration and higher gear you can pull

Dunno if that make sense to ya ha :o

sooooooooooo 4:3 would be prob the best diff as i dont want it for any fast stuff,2nd mostly like?
thanks stevo:)

Stevo
29-11-10, 20:30
sooooooooooo 4:3 would be prob the best diff as i dont want it for any fast stuff,2nd mostly like?
thanks stevo:)

4.1 would be a good second gear diff

4.3 would be better geared for pulling third (easier to pull 3rd than a 4.1 with standardish power)

What bhp have you got?

dermot-r32
29-11-10, 20:33
4.1 would be a good second gear diff

4.3 would be better geared for pulling third (easier to pull 3rd than a 4.1 with standardish power)

What bhp have you got?

standard rb20,only exhaust,

Stevo
29-11-10, 20:39
standard rb20,only exhaust,

4.1 for second gear drifting with your power (you'll pull 3rd through the s's in mondello)
4.3 would make life easier for pulling 3rd everywhere else

dermot-r32
29-11-10, 20:41
4.1 for second gear drifting with your power (you'll pull 3rd through the s's in mondello)
4.3 would make life easier for pulling 3rd everywhere else

cool.ill look out for a 4:3 one so id say,
thanks lad.helped alot,

slithertooth
29-11-10, 20:41
what's the final drive in a 32,?

Stevo
29-11-10, 20:44
cool.ill look out for a 4:3 one so id say,
thanks lad.helped alot,

Its only what ive learned from dan the man moorhead when picking a diff for my own yolk standard power also..
4.3's are hard got!

dermot-r32
29-11-10, 20:45
what's the final drive in a 32,?

no clue,:confused: the diff i have is a cunt,it locks when it wants to and one wheels other times,caught me out a few times:( so want a proper 2 way now

dermot-r32
29-11-10, 20:46
Its only what ive learned from dan the man moorhead when picking a diff for my own yolk standard power also..
4.3's are hard got!

i know:( i mailed carpo to see what he has,ill hope for the best id say:o

slithertooth
29-11-10, 20:49
If you had a 4.3 in yours you could get that welded and then try pick up a 2 way with a 4.1 best of both worlds then

Stevo
29-11-10, 20:50
Track car or road car, welded diff would be better and alot cheaper for a track car :D

dermot-r32
29-11-10, 20:55
Track car or road car, welded diff would be better and alot cheaper for a track car :D

o i know!!ha its a road car and would perfer not to weld it but its starting to look like ill have to,:D:( duno wether to be happy or sad.ha

slithertooth
29-11-10, 21:00
WELD IT:D:D what's the ultimate ratio for say 300bhp or does it alway's depend on the track

Stevo
29-11-10, 21:19
o i know!!ha its a road car and would perfer not to weld it but its starting to look like ill have to,:D:( duno wether to be happy or sad.ha

Happy :D ive a 5 bolt 4.1 here if you want to get it welded, could be shimmed tho as its a very tight diff

Stevo
29-11-10, 21:20
WELD IT:D:D what's the ultimate ratio for say 300bhp or does it alway's depend on the track

Depends on track, and what tracks your gonna do most, mondello or portlaoise ect as there completely different types of track

podge
30-11-10, 01:26
what's the final drive in a 32,?

4.3 in my 32