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-   -   3.4 Rebuild and Upgrade (http://forums.pelicanparts.com/911-engine-rebuilding-forum/653328-3-4-rebuild-upgrade.html)

RonHarmse 01-24-2012 06:22 AM

3.4 Rebuild and Upgrade
 
I am rebuilding my 3.4 (originally 3.2 Carrera) engine. It has 98 mm JE pistons and 11.5 CR. Reason: Broken rings due to detonation. Splitter for Twin spark stopped working and possibly poor fuel at sea level race. Car normally operates at + 5000 ft.

I want to increase power but funds are lacking for a full new throttle bodies, ECU .... package or PMO carbs.
I want to use the standard 3.2 intake manifold and throttle body but dump the air flow meter. Also add a throttle Position Sensor (TPS) and up the fuel pressure to what is required. (also Lambda, air pressure etc). I am running a DASTEK programmable piggyback ECU. The car will then remain complient for historic racing.

The current cam is a reprofiled standard cam with more duration and overlap. (something like a 964 RS cam) fairly mild.

Questions:

1. Can what I intend work or is it a waste of time?
2. Can I run a S cam (or GE60 or GE80) or is there too much overlap for the manifold?
3. If not what other cam can I run that will make power with this manifold?
4. Any other suggestion? (like sombody wants to give away a full TeC3 package (he-he)

jsveb 02-22-2012 10:44 AM

I don't know what your budget is, but have you checked what the dzug boys will be offering on ITBs?
Check Al Kosmals thread on his triump itb project.


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