Porsche Enthusiasts Club Forum

Head reassembled using standard cam and gear with solid followers:-



Head is fully ported with larger valves and heavier springs:-

Copper gasket to go with the O ringed block:-

Long block together at last:-

Rear coolant entry and exit:-



Modified water pump and thermostat housing:-

Crank sensor mounted. Flywheel has 60 - 2 triggerwheel mounted:-

How to fit a truck turbo to a 'van' engine:-







Holset HX35 with twinscroll 12cm housing and 70/61 turbine.

Engine in:-

Old and new wastegates:-



2 x 40mm Turbosmart, each venting half the engine.

One wastegate almost fitted:-

That's me just about up to date with still loads to do.
Wastegates are almost done and I've just started with the 3" turbo-back exhaust.
Then there's the inlet to finish, massive charge cooler, 2 radiators, oil cooler etc etc... it's all good fun

cant wait to see this up and running!! should be an animal with that turbo!

Glad to see at least someone approves of my antics on TIPEC.
The whole project seems to have become an exercise in over-engineering!

thats going to sound like Concorde on a take off run, absolute magic

Blimey! That turbo! Apart from being logistically limited on the location of that turbo, is the front a relatively cool place to put it?

I can't say for certain but it won't be too difficult ducting cool air to it.
The oil cooler I have is a 50 row Setrab unit and I only run synthetic oil so don't anticipate turbo bearing issues. Holsets are known to be tough units anyway.

The twin scroll twin gate exhaust manifold has been a pain in the proverbial from start to finish but it's almost complete now along with the 3" downpipe. I also fitted a couple of EGT probes in each wastegate pipe to monitor each half of the engine.
I think they'll also double up for measuring manifold back pressure

This first engine should be able to take a fair amount of boost. Pity the con rod bolts are stock otherwise I'd consider upping the revs.