914/6 911T 2.0 Engine rebuild
 

Hello all,

I am rebuilding a 914/6 911T engine to install on a 914.4

I am considering changing the oil pump. What would you guys suggest as an upgrade ? Should I go for a 964 pump or 911 3,2 or stock ?

Other nice mods on valves cams exhaust in order to get a little more power ?
I dont want something radical, as the car is for daily street driving and occassional mountain roads.

Suggestions would be greatly appreciated.

Thanx
Steve

You could be on the precipice of the proverbial slippery slope. This is but one of several questions on upgrading an early engine and which could be potentially very expensive. I suggest obtaining Wayne's Engine Rebuilding as well as Bruce Anderson's High Performance 911 book that explains and describes the many options available to you.

The subsequent questions you'll post after that will be more specific and helpful to you.

Sherwood

My favorite engine to build on the 3R case (2.2T) is the 2.45 Mod S (Twin plug if the budget allows.) Basically a detuned long stroke 2.5 ST engine.
86 mm is about as large as the 3R case can hold without boring the spigot and weakening the case. Plus the 86 mm Biral barrels are very affordable.
The engine is a 2.45 liter with DC Mod “S” cam and 9.5:1 compression.
Balanced the entire engine to 1gram.
CaseSavers, oil by-pass mod, 3.2 Carrera pump, line bore and oil squirters.
The 2.4 (70.4 mm) crank is magged, polished and cross drilled.
The pistons are JE 9.5:1 forged racing pistons in new 86mm Biral barrels.
The rods rebuilt new bolts & 12 point flanged nut.
The heads are 2.2 T with 36mm intake ports and machined for twin plugs.
Phosphorus /bronze valve guides and new valves (47, 41) installed.
The Supertec 240 valve springs. The head studs are of course Supertec.
40 mm Webers, SSI exhaust and M&K muffler.
This engine will produce 180 RWHP at 6400 with more to go if needed.

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