Quote:
Originally Posted by Steve@Rennsport
Spot-on right there!!!
Throttle response on any 6-throttle intake is light years better than the CIS system when properly set up. This applies to carbs, MFI and EFI.
EFI certainly delivers better fuel economy, however Engine Management is much more expensive when you factor all the hardware and the time needed to properly program it.
Carbs certainly aren't for everyone simply due to ideosyncrasies that few people now understand and are willing to deal with (cold starting is one). Plus, it takes patience to fine tune them for best drivability.
Smog compliance is a big obstacle for anyone living in CA with a '76 or newer car.
Carbs offer excellent performance, however I am very careful about recommending them to my clients, depending on the individual.  |
Steve,
A question about response with Euro CIS. vs. Carbs
I had a 930-16 US '83 CIS and it was nice but didn't jump when you hit it. A good push.
I've a 930-10 Euro '83 CIS with an onboard AFR (so I can tune it easily) and it does jump when stomped.
I know I have a HP/Torque increase but I think (?) that the different wur on the Euro that controls enrichment in the mid range specifically makes it more responsive.
The lambda on the US does this function where a simple vacuum does it on the Euro.
I see an AFR in the 12's when I hit it.
Am I nuts or is this a better system for performance? Would carbs be any better without a cam change?