2.0 L twin plug racing engine re-visited

[126coupe]

I finally got my pistons back from the machine shop to correct my piston to valve clearance.

I just need to install the wires, no hurry, this is next seasons engine. I will drop down from CP3 (2.5L) to CP (2.0L).
This engine should be a high reving, torquey engine.

[philippeF]

That's a wonderful job !
what's up with the exhaust system ?

[126coupe]

Originally posted by philippeF
That's a wonderful job !
what's up with the exhaust system ?

Its a custom exaust made by Becks in Arizona. Made 10-12 more HP on the dyno. It has a completely different "note"

[Turbo_pro]

Originally posted by Minkoff
Its a custom exaust made by Becks in Arizona. Made 10-12 more HP on the dyno. It has a completely different "note"

WOW 10-12 horse power.
Can you post the sheets so we can see this amazing result.
Flat collectors like Porsche used produced 220 hp in the racing 2.0 engines. That must mean you're making over 230. That's quite an impressive number.

There is an official 911 dyno thread just started, these two+ dyno runs would be a great addition.
Thanks in advance

[126coupe]

Originally posted by Turbo_pro
WOW 10-12 horse power.
Can you post the sheets so we can see this amazing result.
Flat collectors like Porsche used produced 220 hp in the racing 2.0 engines. That must mean you're making over 230. That's quite an impressive number.

There is an official 911 dyno thread just started, these two+ dyno runs would be a great addition.
Thanks in advance

I just took Becks word on the 10-12HP increase.
Once I put the engine in I will feel a big difference under my foot, concidering my "other" 2.0L was mild. The "new" 2.0L
has a different cam DC80, twin-plugged and a bump in CR from 10.1:1 to 10.6:1.

I may get this to a chassis dyno but I normally dont dyno them. I know, I know I should be dyno-ing, but I use the old way., take it to the track, mess w timing and jetting and leave it at that.

[126coupe]

All Wired up. Thanks JBracing for the help and support.

[RichF]

wow i didnt know a 2.0l could put out that much, but then agin i dont really know much about porsche right now. I have a question whats the unit towards the back of the engine in the middle with the red cap and what do the two connections go to?

[Jeff Alton]

Crankcase breather, a hose goes from it to the oil tank.

Mark, nice looking motor! Is that the same exhaust that "plavan" uses?

Cheers

[126coupe]

Originally posted by Jeff Alton
Crankcase breather, a hose goes from it to the oil tank.

Mark, nice looking motor! Is that the same exhaust that "plavan" uses?

Cheers

Thanks! Chad Plavan uses a different exaust system, his cousin JP uses the same system.

[RichF]

what about the two brass conections do they plug up to something?

[126coupe]

Originally posted by RichF
what about the two brass conections do they plug up to something?

Oil pressure sender and oil pressure light

[Jeff Alton]

Oil pressure sender.

Cheers