Hi Everyone.

Over the last couple of weeks there has been a lot of talk about different diffs and ratios etc, and everybody seems to have different opinions.

It would be interesting to see what everybody runs/prefers and what sort of engine, wheels and driving you do.

I'll start:

Engine: 1330, 266 cam, mildly lightened and balance motor
Diff: 3.647:1
Gearbox: mini k
Wheels: 10"
Opinion: I don't love the diff, I find I go up through the gears too quickly, and cruising on the highway is a bit revy.

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Ryan Filippi
Minis In The Gong
[email protected]
www.minisinthegong.com.au

I have a 1360 with the same 3.647 diff and 10" wheels, but a bigger cam (RE282)- I fitted the diff for Wakefield Pk to get a little more 4th gear acceleration on the straight.
It is a bit short geared but suits this cam well around town. Pulls OK from below 50kmh in 4th.

When the 1412 goes in it shortly though, it's getting a 3.44.
I'd fit a 3.1 to it if I had one.

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DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R.

Engine: 1152, fast-road cam, 2x HS2, LCB+RC40, 123ignition
Diff: 3.444:1
Box: Early rod-change
Wheels: 10"
Driving: Inner-city and long highway runs. Acceleration is good (but not stellar) and I can sit on 120km/h at 4,500rpm all day long easily, although it is noisy

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Simon

The adventures of an owner builder in the Tallarook Ranges

Car : 63 850 (not on the road, crumpled LHS guard)
Engine : 1030cc (998+040), MG metro cam, worked 295 head, HS4 on MS inlet, RC40, recurved Hitachi dizzy.
Box : 4-spd sync remote
Diff : 3.44
Wheels : 10"

I've had 3.765 & 3.647s before, and I found the 3.44 the best of the lot. Sure a little acceleration trade-off down low, but most passengers were surprised when I told them it was a 998

Only the 40 zones had me reaching for 3rd...

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'72 Clubman Van - 1022cc, 295 head, 731 cam - Daily Driver
'69 Morris 1100 S - Dinged by a bus, in shed under repair
'64 Morris 1100 - Early 1100, long term project

Car: 1984 Mayfair Sport
Engine: 1275, MG cam, Inno big valve head, stg1 stuff.
Gearbox: 4 sync. A+
Diff: 3,21:1
Wheels: 10" (165/70 on 5x10")

About right for relaxed cruising & still quite good to have fun in the hills. I found a 3,44 too short and the 3,1 a tad too long. The 3,21 is a pretty good compromise & allrounder.

Next will be the same engine, but with 277cc less and a 3,76:1. I want to find a 'S' ratio gearset first, because 1st gear (A+) is allready a bit short even with the 3,21. Or save a bit and invest in a SC/CR gearset.

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No speakers, no bodykits, no six-inch spacers, no spak filler, no bullshit

wish it was a 1275 but a 1098 with +60 and a RE13 & 10" wheels has a 3.44 diff Great all round but slugish off the line, I which I had have taken the 3.6 diff
Motor about to go in is a 998 block with a 1098 crank and a RE83 cam but has the 3.64 dif which will be much better all round for a 1098 motor
a Nice 1330 would suit a 3.44 diff niceley all round

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Stop Licking the Dog...I Don't Care Who Started It

I dunno Gaf, I suppose it comes down to what you're used to but I don't find it too sluggish at all... what was it the Beatles said? "All you need is revs, da nah-nah-nah-nahhh"

It could be a bit quicker I suppose.. but I reckon a 3.44 in a 1275-ish motor would be perfect for the street, though.

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Simon

The adventures of an owner builder in the Tallarook Ranges

1100S 1275 and gearbox + 4.2 diff
10" wheels
great for wheel spin in every gear but absolutely screams above about 80k
looking to change over to a 3.44

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'62 Morris 850 (Marion)
'65 Mini Delux - sleeper 1275/S discs (Ms Plum)
'69 Vanden Plas Princess 1300
'71 Wolseley 1300
'74 Austin 1300 Countryman
'94 XJ6 Sport 3.2
'04 Rover 75 CDTi