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Randy W Randy W is offline
Automotive Writer/DP
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Join Date: Dec 1999
Location: Seattle/L.A.
Posts: 2,278
Originally posted by rdane
The red a 3.356 CIS / the blue is a 3.2 Carrera with late model Varioram intake and Motec engine managment.
Since this is my old engine, I'll say a few things. You will note that at 3500 rpm the torque and HP curves are the same for both engines, and at 6300 the 3,2L curves keeps going. Both results are more from the Varioram than the Motec M48, but would not have been possible to create without some brand of EFI. The 3.2L was a completely stock US Carrera longblock. The 3.356 was a Porsche prototype engine.

If you are trying to squeeze everything possible out of a stock longblock where the rules allow alternate intakes that motronic will not work with in that application, but the rules allow EFI, then Motec is a good idea. This is what I did back in 2000 for ASP Solo 2, and it helped us trophy at Nationals. I am very glad I purchased Motec, because it allowed more sensors, inputs, outputs and table settings than any other EFI available at the time, AND it still works well on my current 2.8L race motor. I spent the money once (about 4K except for tuning), received all the software upgrades for free, and 5 years later have an EFI system that is still close to state of the art.

If your needs do not match mine, then Motec is probably not necessary. For me it was the solution I needed. Best of luck!

Oh.. and Dane, I think the cost of my 3.2L was right around what you spent (if you total up all your aggravation... Now my 2.8L, that another story, and another graph.
1972 S - Early S Registry #187
1972 T/ST - R Gruppe #51

Last edited by Randy W; 10-15-2005 at 05:09 PM..
Old 10-15-2005, 04:58 PM
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