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Micke Micke is offline
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Join Date: Nov 2010
Posts: 967
But fun if somebody sholud know-how made in the USA, will measure them up next week, I do think it is S or E camshafts from the start because it is an MFI engine old school, but one of the most fun engine I bean driven and start to drive Porsche 1981, so have driven most of them. This one has an enormous nice power band, so it is not a race spirit camshaft, somebody got it very correct for a street and weekend race car,

Spec

3,2 case 1984 Carrera Stroke 74,4 heads SC, Heads intact 40 mm and ex 40-41 will see better after cleaning and rebuild, and interesting intake job will run exchanger the new one from SSI 41 mm Big bore

MFI set up T- bodies 40-42- and stacks 42-46 on the top, MFI Pump set to RSR spec on high RPM, a very interesting setup with a special space came, Pump we have run in the test bench will do the last calibration when we run the car, it will run a bit rich on low RPM, but as Porsche made all pumps back in the days so they were running very rich stock, this is the way of cooling an air-cooled engine as well and nobody cared about the fuel cost.

98 mm pistons and a very nice job on enlarging the cylinders and the car doset have many mils, I bean driven 10,000 km in the last 6-7 years

Twin plug and compression were from 10,5-10,6 it was a small oil leak on one cylinder head.

But what is cool all this was built back at end of 80, it sholud be nice to know how built the engine in the first place! and the car is a 72 T that was modified in the early days of 1973 like spare cars for racing by Waslak Polak, and that was the normal way they both T cars and ordered racing parts from Werk 1 for smaller race teams, then the car was sold without the engine, the race team kept the 2,5 L engine for the car as spare.

But overall, it is pretty stock 72ST set up, has 1328 seats, and other typically ST jobs are done and have no rust, will build a 2,5 L engine as well so we can compete in historic racing, so the 3,4 L engine will be more for fun!

I sholud say it is a very modern Hot rod engine that guys build these days,, and I was 100% sure it was 70,4 stroke how the car was revving so quickly up to 7,400 RPM first I had it set to 8,000 RPM but it is a bit risky and not for a street car!

Thanks

T-and stacks ready !

Old 12-08-2022, 09:16 AM
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