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MINI
This Mini is sporting what I would call a nearly full race 1400cc lump.
It has a SPVP4 David Vizard/APT cam timed in at 101, working the 30/35mm vales with Iskenderian springs and Windsor 1:5 roller tipped rockers, all bolted onto a standard 12G940 1805 head. This is breathing through a 45 DCOE webber and back out through an LCB with single RC40 side exit exhaust. The ignition system has a Lucas spots coil and a standard 23D4 S distributor sitting at 4 static. This helps push down the 74mm Omega race pistons on 1275GT rods and a standard crank held in with a steel center strap. The drop gears are standard going onto an ultra lightweight steel flywheel through an orange plate and race diaphragm with a S backplate and into the 3 Sync. straight cut gearbox with a 4 pinion 3.4 diff.
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The 45 webber at present has 170 mains on F2 emulsion tubes with 200 air correctors. The idle jets are 40 F9 with a pump jet of 50, the choke size is 38 along with 3.5 aux. venturi.
This set up allows a smoth enough drive in traffic. I think it is still running rich at idle which also upsets the progression, but is hard to tell with a cam that has 295/290 duration and god knows what overlap! It will rev out to 8k no problem through the gears but in top I cant get much more than 6250, this is maybe down to the 3.5 aux. venturis just not getting enough juice to the engine!! |
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In the David Vizzard book there is a profile on the cam which I am using with much the same engine setup. He was able to achive 130bhp at the flywheel! But as I am running a standard 1805 head and a short reach inlet manifold I am going to give it in and around 100bhp, which will do me nicely.
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The rest of the car is all 70's spec, apart from the tyres which are Yok's A032R's and the Cobra Bucket Seats.
I also have a home made 3 point immobiliser which kicks in as soon as you turn the engine off.
The dash board is the original oval but has been modified as you can see below!
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