Julian, interesting. As my car uses, as far as I can tell, only components from a 405 including an overdrive gearbox, I'm assuming it'll have a 4.22:1 diff?
I can use second in almost all 'pulling away' situations, first is only really usefull for getting things rolling on an incline before second is swiftly taken. Although my car is probaly considerably lighter that a 405, as is an Ace, I would have thought that a modified first gear would be closer to second than mine seems to be.
15.24:1 seems like a stump-puller compared with second at 7.71:1!!
I can check the diff ratio without having it to peices, but will have to wait till the drive train is removed and the box opened before I can see what's what.
I think my ACOC forum memebrship is still active and I might put a request for info re modded 1st gears on Ace/Aceca Bristols. (I thought they had Moss boxes??)
On the subject of ratios, I've had conflicting 'education' on how gearing is expressed from highly educated engineering types over the years. It seems to me that refering to a ratio as high or low depends from which angle one is looking. Depending if one is looking at the work going in, or the work coming out, if you get my meaning?
Last edited by GlennBurnage; 02-11-21 at 07:23 AM.
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