HCA wrote:Thanks Foxie! Pretty well what I wanted to know!
In fairness to Voigt, he does have your info. He was though talking with me from the workshop with his brother and had to go back to the office to send it to me, but when he said Ireland and blue +2, I said leave it pretty sure it was you!
The one question I ask before I undertake this - is it worth it? What is the engine RPM in top travelling at 130/80 with .8 top gear ratio? Assuming a good engine and a few more hp - maybe up to 150 - is there enough pick up in top gear to do a gentle overtake? Is it noticeably quiet?
I quite fancy a well proven Ford box and like the idea that I could keep the 3.7 diff, I just do not know about all the cutting - but again if you have had it this time and used it in competitive motoring without any breakage, then that is a re-assurance. Speedometrer drive is not an issue as I have an electronic unit from my last MGB that I could use anyway, and try to ignore the mismatch in design between it and the rev counter...
What I find hard to believe - if Voigt is selling many of these boxes that he claims, surely there must have been another person in the sixteen years between yours and my enquiry with a Spyder chassis?
Glad to be of service !
Pleased to hear Alan has me spotted !
Is it worth it ? If you are doing any modern motorway/fast driving driving at all; absolutely ! With 150 hp it would not be slow ! Is it noticeably quiet ? I don't hear it at all !
With a 3.77 diff at 80 mph you would have 3887 rpm. ( The 5th gear is 0.815 ) I have attached a basic chart of speeds/rpms.
There is not that much cutting / grinding, just mark it of with typex and do a little at a time, checking the fit often.
I would highly recommend asking Alan to fit the 2.98 1st gear kit, the standard 3.65 is a real stump puller !
I had my original Smiths speedo converted to electronic operation, the only obvious difference is the digital trip meter read-out.
Hard to know how many Voigts T9s went into Spyder +2s. I think Alan can be a bit absent minded at times regarding office records ! When I sent him the gearbox for the mod, he lost my details, and didn't know who to send it back to, until I phoned him about the delay ! But he is very good at what he does, and always chatty and helpful.
(I have corrected an error in the chart, mph/1,000rpm for the 3.54 diff in 5th is 21.91 mph )