Hello all, Time for a quick update.
The original Twingle Port* engine was still pulling strong, but had the very occasional small puff of smoke at start up when it had been stood for a while & the standard crank shaft oil seal weep, but nothing major. I wanted something a little more powerful, but not crazy & defintily still aircooled.
So out with the old :
& in with the new :
Its one of the VW Heritage/SSP All new 1776 engines
Here
Weight: 73.3778 kg Autolinea Aluminium Race-Case with 10mm Chrome-Moly head studs
Engle 110 camshaft
Forged Counterweighted 69mm Crankshaft
Forged 4340 Chro-Moly 5.4'' I-Beam con-rods
Mahle 90.5mm Forged Pistons & Cylinders
Dual Thrust Cam Bearings
Steel backed Centre main bearing
SSP Big valve heads with 40 x 35.5mm stainless valves & 12mm Long-reach Spark Plugs
Uprated single valve springs & chrome moly valve spring retainers
Case drilled & tapped for full flow oil filtration/cooling
Uprated Oil Pressure relief springs
Scat Bolt up rocker shafts & Swivel ball adjusters
Scat Heavy Duty Chrome moly pushrods
Scat Stainless Steel Rocker covers
Schadek 30mm oil pump
Cool tin under cylinders
Lightened & 8-dowelled 12V 200mm Forged Flywheel
Fully dynamically balanced
8.5:1 compression ratio
I bought a set of the re-furbed 40DRLA's from
Alfa 1750's store on E Bay, a set of K&N's Pertronix Billet Distributor & coil & a very nice & effective Gene Berg throttle linkage & Oil breather & Huco fuel pump. I also bought a new Vintage Speed Sportflow exhaust to reduce cruising rpm, this was then connected to a new Rancho Freeway Flyer gearbox with a new Sachs clutch assembly
Looking nice & shiny before it was run up to break in the cam
The engine went in easy enough, but would not run well at all, lumpy, horrible, popping & farting. was better after being setup by Autotronix, but occassionally would limp onto 3 cyclnders, it turns out the new Pertronix coil had an intermittent fault, back to a trusty Bosch Blue & all is good.
We are now 2,000 miles & 2 oil changes later, its just been on the rolling road & gives out a healthy 101 BHP with 102 ft/lbs or torque & an even more welcome 28.5 mpg.
The gearbox gives such a relaxed drive, sits happily at a GPS read 70mph, looking forward to using it much more now.
Thanks to Alex at Heritage for the advice & patience