Porsche 935 inspired engine build by (Neal Harvey formula 1 fame ) and 930 transmission modified to 6 speed

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[ Race Car Parts ]

935 inspired engine build by (Neal Harvey  of formula 1 fame ) and 930 transmission modified to 6 speed

Engine case
– 930/63 Aluminum 3.3L case, prepped/modified as follows:
  – Mating surfaces machined, align bored to standard crankshaft and intermediate shaft sizes
  – Main bearing webs reinforced and boat-tailed
  – Cylinder spigots refaced
  – Oil galleries cleaned, all new passage plugs
  – Tail piston oil squirters fitted

Crankshaft
– 934/935 factory racing crankshaft, rod bearing oil passages cross drilled and teardropped, sized for titanium rods
– All oil bores cleaned, new plugs installed
– Bearing surfaces polished; rod and main journals at Std specs
– Magnafluxed and balanced

Connecting rods
– Porsche factory titanium rods, resized, new wrist pin bushings, weight balanced, new titanium hardware

Pistons
– Mahle 95mm hollow crown forged pistons, wrist pin bores polished, new rings and retainers, weight matched

Cylinder heads
– Dual plug, mating surfaces refaced, ported to 41mm intake, 38mm exhaust, snubnose guides, new factory valves – 49mm intake, 41.5 exhaust
– JB Racing valve springs and retainers
– Combustion chambers matched at 75.2 – 75.4 cc

Camshafts/cam drive
– Protomotive 934/935 camshafts, reconditioned by Webcam
– New rockers, rocker shafts, adjusters and hardware, new chains and chain rails
– New JB Racing mechanical tensioners
– Tensioner levers lightened, ground and polished

Intake system
– TWM aluminum manifold with individual throttle bodies, custom aluminum plenum matched to custom full width intercooler
– Left and right fuel rails currently fitted with Bosch injectors

Clutch and flywheel
– 240mm steel Porsche flywheel modified for use with electronic RPM/timing sensor
– New pilot bearing and flywheel bolts
– Aluminum Porsche 930 pressure plate, 6-puck spring-centered clutch disc

Engine external
– Custom heavy-duty billet aluminum crossbar with separate aluminum mount for custom AC clutch assembly which drives a toothed belt for offset mounted AC compressor
– Custom made billet aluminum compressor mounting plate attached to right upper valve cover studs
– Lightweight upper engine shroud

Ignition system
– Bosch format 12 plug distributor, reluctor coil output with mil-spec connector
– Case mounted pickup for flywheel triggers
– 12 plug wire set for dual coils, with factory guide loops and spark plug connector retaining clips

930 6 speed transmission 

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If you need more information or assistance with any part of this engine build, feel free to ask!

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