JUst a few Question. will cruising at 4000rpm over a long period of time cause damage. because i have got a 3.65 diff in now and a 4000rpm i'm doin 100km/h legal limit for green plater.
also i have fitted a 45mm webber and i am getting alot of fuel built up araound the air filter is this normal.

_________________
FOR SALE MInidlx, 1293, GR head, RE-13, GR worked Redline Manifold, 45 mm DCOE,pulsar dizzy , "S" Disc's, Mk II "S" box, 3.65 diff. Minator 10X6's On the loose

nah should be ok

It will only cause damage if your cooling system is shonky and/or you are using a really poor quality/brand of oil. If you plan on doing 100kmh for long periods quite frequently, then make doubly sure that oil/coolant levels are maintained and if it looks like it's getting to hot, then stop.

If you want to, then you could go for a different ratio final drive. I think I have a 3.44 in at the moment, but I want to get a 3.1 or something, just to make higher speed cruising a little more "comfortable".

_________________
Jonathan
http://photobucket.com/albums/y64/FatMaserati/

Nah, 4000 won't hurt it. I run a 3.65 diff too- I put it in instead of the 3.44, to get even more grunt in 4th gear.
Actually a 1275 has a harmonic imbalance somewhere around 4500 I think, best to either go either faster or slower than that on the freeway.
So I've been told... but it never hurt my last S crank...

_________________
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.

na i ditch my 3.44 there no fun. it's hold it's temp great on the highway but i think i will change my oil to castrol formular R.

_________________
FOR SALE MInidlx, 1293, GR head, RE-13, GR worked Redline Manifold, 45 mm DCOE,pulsar dizzy , "S" Disc's, Mk II "S" box, 3.65 diff. Minator 10X6's On the loose

You should have no probs, I don't know what you call long, but i do a 30-40min trip to work on the freeway and i vary speed between 100-130..about 4000-5250ish the whole way and it's never complained..

Overheating shouldn't be a problem on the freeway, I don't know about the 3.65 diff...i like the idea..but at hwy speeds it's probably too loud for my liking..

_________________

Starlet Conversion:
http://www.ausmini.com/forums/viewtopic.php?t=15484

tell me about it i have 2inch all the way through to the cannon and the webber and my dash isn't sealed so it's very loud. i wear ear plugs for the trip to work. getting a muffler soon

_________________
FOR SALE MInidlx, 1293, GR head, RE-13, GR worked Redline Manifold, 45 mm DCOE,pulsar dizzy , "S" Disc's, Mk II "S" box, 3.65 diff. Minator 10X6's On the loose