Re: [doc] Re: Final drive issue will be put to the test soon

[Martin Gutkowski <martin@xxxxxxxxxxxxxx>]

The final drive is number 11 in this image

http://www.usadmc.com/dmcstore/images%5C413.gif

The DeLorean has a 3.44:1 final drive and it was rumoured that the euro 
spec cars were to have the 3.8 as it makes for better accelleration at 
the cost of a drop in fuel economy. There's also much speculation 
(largely on my part) that it's this difference in ratios that breaks 
input shafts and eats clutches on "engine swapped" D's in the US. 
Basically this will mean that the tyres break traction before the clutch 
slips - something I can now do with my original clutch and a paltry 
170ish hp. I don't expect the clutch to stand up to much punishment with 
my new engine.

To clarify by an example - 90mph on a stock manual DeLorean tranny is 
approx 3500rpm. With this box, it'll be nearly 4000rpm - though my turbo 
engine revs harder and higher so it's a better match all round. It 
basically brings the gears closer together, and with the extra power and 
rev range, it'll have a higher top speed than a stock D anyway.

I think power steering will be my follow-on project!!!

Martin

saalexander2000 wrote:

> Just curious Martin (and I'm probably showing my mechanical ignorance),
> what's the advantage of this over a DeLorean manual gearbox?  Different
> ratios?
> 
> Stuart
> 




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