What intake are you running in your 3.4?

[911 Rod]

What intake are people running?

1986 911

I had by engine rebuilt to 3.4 with 9.8:1. 964 cams. Lightened clutch and flywheel. Headers.

I think I know what route I am going to take, but curious what everyone else has done.

[Fly911]

I'm running Jenvey ITB's on my '87 Carrera, but with much bigger displacement and wild cams.
For a 3.4L and 964 cams I would extrude hone the intake manifold and bore out the TB. I would also ad a resonance chamber between the two intake manifolds (weld on a 2.5" aluminum tube) and make a DIY IPD plenum for better airflow. I made an IPD style intake on both my 993 and 996, and it works just as good as the original, to 5% of the cost...

[will hung]

Originally Posted by Fly911

I'm running Jenvey ITB's on my '87 Carrera, but with much bigger displacement and wild cams.
For a 3.4L and 964 cams I would extrude hone the intake manifold and bore out the TB. I would also ad a resonance chamber between the two intake manifolds (weld on a 2.5" aluminum tube) and make a DIY IPD plenum for better airflow. I made an IPD style intake on both my 993 and 996, and it works just as good as the original, to 5% of the cost...

Could you share some pics? I'd like to see this.

[911 Rod]

Originally Posted by Fly911

For a 3.4L and 964 cams I would extrude hone the intake manifold and bore out the TB. I would also ad a resonance chamber between the two intake manifolds (weld on a 2.5" aluminum tube) and make a DIY IPD plenum for better airflow. I made an IPD style intake on both my 993 and 996, and it works just as good as the original, to 5% of the cost...

stock injectors and the stock AFM?

[ChrisBennet]

I'm running a stock 3.2 intake.
3.4L, 10.5:1 compression, stock 3.2 cam, Sal Carceller's MAF and splitter.

[911 Rod]

Originally Posted by ChrisBennet

I'm running a stock 3.2 intake.
3.4L, 10.5:1 compression, stock 3.2 cam, Sal Carceller's MAF and splitter.

Sal's MAF is not a stock intake.

[ChrisBennet]

Originally Posted by 911 Rod

Sal's MAF is not a stock intake.

I meant stock intake manifold, sorry.

[mnez]

Originally Posted by 911 Rod

What intake are people running?

1986 911

I had by engine rebuilt to 3.4 with 9.8:1. 964 cams. Lightened clutch and flywheel. Headers.

I think I know what route I am going to take, but curious what everyone else has done.

Extrude honed intake manifold, bored throttle body, Autothority MAF with custom Steve Wong chip. Same 9.8:1 3.4 with WebCam 20/21 cams.