Monday 27 April 2009

Spitfire brake - here i go again

Well

The wethers improving the new ignition is sorted, but now sports a new dizzy. I bought a spring pack from moss which turned out to be a perfect waste of money cause it didn't work. The new dizzy does. Wonderfull the engine now revs to 5k RPm and sounds like a sewing machine when it does. Job sorted.

I have also fixed the manifold leaks. it was the throotle shafts in the carbs ! doh. I was going to fit oversize throttle shaft but moss could not produce the good on time so i sleeved the shafts reamed the holes to 8mm. I also fitted plain throttle disks. job done some tweaking is required for the choke operation but that can wait for later.

My air fuel meter has changed, I altered the electronic circuit so that i can focus on the just lean to just rich range. Show that the engine is a little rich at idle. If reduced to be acceptable there is hesitation under 2k RPm. i think that some playing with needle might be in order soon.

Other than this i have put a few miles on the car even doing the 80 mile round trip to work down the M4 without any issues. Just a few suprised drivers to see they are being overtaken by what is now a relic.

I spotted some vitess parts on Ebay so i am shortly to be the owner of some uprights and caliper brackets. now i could go the easy route and fit the rest of the Vitess parts but um no. That would be far to practical and easy. So my plan will take one of the following routes.

  • Fit Capri 2.8 disks, I think the OD will need machining. And Austin princess calipers that i will have to space out.
  • Make new caliper brakets and fit metro calipers, i have been loaned a caliper for fitting purposes./
  • I believe that i cheaper alternative is to use landrover disco calipers but have some more rechearch to do.

Further to this i have now tried some MG metro calipers that bolt straight up to the Vitesss caliper brackets, unfortunately i would have to use the spitfire brake disks. The standard vitess type 16 calipers not only have a larger friction area on the pads but run with bigger brake disks. so the standard setup will be used, the only question is do i use vented disks ? that decision can wait untill i have bought some calipers.