3.0 SC US to Euro

PilotFrog · 05-15-2017, 06:52 AM

I wanted to know what would entail bringing a US spec SC up to the ROW or Euro spec. Besides the compression difference of 9.5 to 9.8 would there be any other needed modifications? I assume different pistons for the 9.8 and the need for higher Octane gas. Is the 93 being sold now with ethanol added in enough?

Dpmulvan · 05-15-2017, 08:03 AM

Row car has larger port size I believe. Pump gas not a problem with 9:8

jamesjedi · 05-15-2017, 10:53 AM

There are many differences between the US and ROW. Some were very similar, depending on the year. It I remember correctly the 930-10 engine was the highest in HP.

Some of the PCA race cars the are in Spec E will have similar engines.

Rothsport sells the pistons for such a conversion.

G450X · G450X's Garage

Quote:

Originally Posted by PilotFrog

I wanted to know what would entail bringing a US spec SC up to the ROW or Euro spec. Besides the compression difference of 9.5 to 9.8 would there be any other needed modifications? I assume different pistons for the 9.8 and the need for higher Octane gas. Is the 93 being sold now with ethanol added in enough?

Euro spec also has higher flow CIS (fuel distributor/intake), large port heads and better flow exhaust (and higher compression pistons) that contribute to most of the roughly 24 h.p. power gain vs a U.S. version. I believe the distributor is different from a later SC as well.

Even early U.S. SC's (with low compression pistons, I think they were 8:5:1) were quite a bit quicker than '80-'83 emissions friendly versions, but I think the later SC's ran cleaner and achieved better fuel economy...

Quinlan · 05-20-2017, 04:47 PM

The Euro SC has a different WUR and (I believe) fuel distributor along with a different ignition distributor. The intake on the best of the Euro motors also uses the large port runners which mate up with the large port heads. So, as you can see the conversion is not for the faint of wallet.

SWS911 · 09:17 PM

930/10 has a different fuel head, WUR, larger intake runners with matching airbox for big port heads, a Bosch 0 237 301 009 distributor, plus the Mahle 95L70 9.8:1 pistons and cylinders. Mucho dinero to upgrade!